diff --git a/api/messaging/spec.json b/api/messaging/spec.json
index 49ee7dd5e..0e909e3c5 100644
--- a/api/messaging/spec.json
+++ b/api/messaging/spec.json
@@ -110,6 +110,13 @@
             "Client ID",
             "Session ID"
         ],
+        "struct": [
+            {
+                "imports": [
+                    "github.com/cortezaproject/corteza-server/messaging/types"
+                ]
+            }
+        ],
         "apis": [
             {
                 "name": "list",
@@ -152,6 +159,12 @@
                             "required": false,
                             "title": "Channel type"
                         },
+                        {
+                            "type": "types.ChannelMembershipPolicy",
+                            "name": "membershipPolicy",
+                            "required": false,
+                            "title": "Membership policy (eg: featured, forced)?"
+                        },
                         {
                             "type": "[]string",
                             "name": "members",
@@ -188,6 +201,12 @@
                             "required": false,
                             "title": "Subject of Channel"
                         },
+                        {
+                            "type": "types.ChannelMembershipPolicy",
+                            "name": "membershipPolicy",
+                            "required": false,
+                            "title": "Membership policy (eg: featured, forced)?"
+                        },
                         {
                             "type": "string",
                             "name": "type",
diff --git a/api/messaging/spec/channel.json b/api/messaging/spec/channel.json
index 1b7fb5cad..96b73558c 100644
--- a/api/messaging/spec/channel.json
+++ b/api/messaging/spec/channel.json
@@ -2,7 +2,13 @@
   "Title": "Channels",
   "Description": "A channel is a representation of a sequence of messages. It has meta data like channel subject. Channels may be public, private or group.",
   "Interface": "Channel",
-  "Struct": null,
+  "Struct": [
+    {
+      "imports": [
+        "github.com/cortezaproject/corteza-server/messaging/types"
+      ]
+    }
+  ],
   "Parameters": null,
   "Protocol": "",
   "Authentication": [
@@ -52,6 +58,12 @@
             "title": "Channel type",
             "type": "string"
           },
+          {
+            "name": "membershipPolicy",
+            "required": false,
+            "title": "Membership policy (eg: featured, forced)?",
+            "type": "types.ChannelMembershipPolicy"
+          },
           {
             "name": "members",
             "required": false,
@@ -88,6 +100,12 @@
             "title": "Subject of Channel",
             "type": "string"
           },
+          {
+            "name": "membershipPolicy",
+            "required": false,
+            "title": "Membership policy (eg: featured, forced)?",
+            "type": "types.ChannelMembershipPolicy"
+          },
           {
             "name": "type",
             "required": false,
diff --git a/compose/db/mysql/static.go b/compose/db/mysql/static.go
index b0eb28390..37454d344 100644
--- a/compose/db/mysql/static.go
+++ b/compose/db/mysql/static.go
@@ -3,4 +3,4 @@
 // Package contains static assets.
 package mysql
 
-var Asset = "PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1a\x00	\x0020180704080000.base.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE `crm_content` (\n `id` bigint(20) unsigned NOT NULL,\n `module_id` bigint(20) unsigned NOT NULL,\n `created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,\n `updated_at` datetime DEFAULT NULL,\n `deleted_at` datetime DEFAULT NULL,\n PRIMARY KEY (`id`,`module_id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE `crm_content_column` (\n `content_id` bigint(20) NOT NULL,\n `column_name` varchar(255) NOT NULL,\n `column_value` text NOT NULL,\n PRIMARY KEY (`content_id`,`column_name`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE `crm_field` (\n `field_type` varchar(16) NOT NULL COMMENT 'Short field type (string, boolean,...)',\n `field_name` varchar(255) NOT NULL COMMENT 'Description of field contents',\n `field_template` varchar(255) NOT NULL COMMENT 'HTML template file for field',\n PRIMARY KEY (`field_type`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE `crm_module` (\n `id` bigint(20) unsigned NOT NULL,\n `name` varchar(64) NOT NULL COMMENT 'The name of the module',\n `json` json NOT NULL COMMENT 'List of field definitions for the module',\n `created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,\n `updated_at` datetime DEFAULT NULL,\n `deleted_at` datetime DEFAULT NULL,\n PRIMARY KEY (`id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE `crm_module_form` (\n `module_id` bigint(20) unsigned NOT NULL,\n `place` tinyint(3) unsigned NOT NULL,\n `kind` varchar(64) NOT NULL COMMENT 'The type of the form input field',\n `name` varchar(64) NOT NULL COMMENT 'The name of the field in the form',\n `label` varchar(255) NOT NULL COMMENT 'The label of the form input',\n `help_text` text NOT NULL COMMENT 'Help text',\n `default_value` text NOT NULL COMMENT 'Default value',\n `max_length` int(10) unsigned NOT NULL COMMENT 'Maximum input length',\n `is_private` tinyint(1) NOT NULL COMMENT 'Contains personal/sensitive data?',\n PRIMARY KEY (`module_id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE `crm_page` (\n `id` bigint(20) unsigned NOT NULL COMMENT 'Page ID',\n `self_id` bigint(20) unsigned NOT NULL COMMENT 'Parent Page ID',\n `module_id` bigint(20) unsigned NOT NULL COMMENT 'Module ID (optional)',\n `title` varchar(255) NOT NULL COMMENT 'Title (required)',\n `description` text NOT NULL COMMENT 'Description',\n `blocks` json NOT NULL COMMENT 'JSON array of blocks for the page',\n `visible` tinyint(4) NOT NULL COMMENT 'Is page visible in navigation?',\n `weight` int(11) NOT NULL COMMENT 'Order for navigation',\n PRIMARY KEY (`id`) USING BTREE,\n KEY `module_id` (`module_id`),\n KEY `self_id` (`self_id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nPK\x07\x08\xac\xe8\x19\x1d\x12\n\x00\x00\x12\n\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00%\x00	\x0020180704080001.crm_fields-data.up.sqlUT\x05\x00\x01\x80Cm8INSERT INTO `crm_field` VALUES ('bool','Boolean value (yes / no)','');\nINSERT INTO `crm_field` VALUES ('email','E-mail input','');\nINSERT INTO `crm_field` VALUES ('enum','Single option picker','');\nINSERT INTO `crm_field` VALUES ('hidden','Hidden value','');\nINSERT INTO `crm_field` VALUES ('stamp','Date/time input','');\nINSERT INTO `crm_field` VALUES ('text','Text input','');\nINSERT INTO `crm_field` VALUES ('textarea','Text input (multi-line)','');\nPK\x07\x08f\x18\x1e\x84\xc5\x01\x00\x00\xc5\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00+\x00	\x0020181109133134.crm_content-ownership.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_content` ADD `user_id` BIGINT UNSIGNED NOT NULL AFTER `module_id`, ADD INDEX (`user_id`);\nPK\x07\x08\xeb!\x81\xc2k\x00\x00\x00k\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00.\x00	\x0020181109193047.crm_fields-related_types.up.sqlUT\x05\x00\x01\x80Cm8INSERT INTO `crm_field` (`field_type`, `field_name`, `field_template`) VALUES ('related', 'Related content', ''), ('related_multi', 'Related content (multiple)', '');PK\x07\x08:.\xfb8\xa6\x00\x00\x00\xa6\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x000\x00	\x0020181125122152.add_multiple_relationships.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE `crm_content_links` (\n `content_id` bigint(20) unsigned NOT NULL,\n `column_name` varchar(255) NOT NULL,\n `rel_content_id` bigint(20) unsigned NOT NULL,\n PRIMARY KEY (`content_id`,`column_name`,`rel_content_id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;PK\x07\x08\xee\x12\x15	\x05\x01\x00\x00\x05\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00D\x00	\x0020181125132142.add_required_and_visible_to_module_form_fields.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_module_form` ADD `is_required` TINYINT(1) NOT NULL AFTER `is_private`, ADD `is_visible` TINYINT(1) NOT NULL AFTER `is_required`;PK\x07\x08\xa5q c\x91\x00\x00\x00\x91\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x005\x00	\x0020181202163130.fix-crm-module-form-primary-key.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_module_form` DROP PRIMARY KEY, ADD PRIMARY KEY(`module_id`, `place`);\nPK\x07\x08\xd9\xd4i\xe3W\x00\x00\x00W\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x000\x00	\x0020181204123650.add-crm-content-json-field.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_content` ADD `json` json DEFAULT NULL COMMENT 'Content in JSON format.' AFTER `user_id`;\nPK\x07\x08\"\x96\xd6pj\x00\x00\x00j\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x004\x00	\x0020181204155326.add-crm-module-form-json-field.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_module_form` ADD `json` JSON NOT NULL COMMENT 'Options in JSON format.' AFTER `kind`;PK\x07\x08\xb7\x93\xd4\xf6f\x00\x00\x00f\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00+\x00	\x0020181216214630.crm-content-to-record.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_content` RENAME TO `crm_record`;\nALTER TABLE `crm_record` MODIFY COLUMN `json` json DEFAULT NULL COMMENT 'Records in JSON format.';\n\nALTER TABLE `crm_content_column` RENAME TO `crm_record_column`;\nALTER TABLE `crm_record_column` CHANGE COLUMN `content_id` `record_id` bigint(20);\n\nALTER TABLE `crm_content_links` RENAME TO `crm_record_links`;\nALTER TABLE `crm_record_links` CHANGE COLUMN `content_id` `record_id` bigint(20) unsigned;\nALTER TABLE `crm_record_links` CHANGE COLUMN `rel_content_id` `rel_record_id` bigint(20) unsigned;\nPK\x07\x08mA\xa8\x1e&\x02\x00\x00&\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00$\x00	\x0020181217100000.add-charts-tbl.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE `crm_chart` (\n `id`         BIGINT(20)  UNSIGNED NOT NULL,\n `name`       VARCHAR(64)          NOT NULL COMMENT 'The name of the chart',\n `config`     JSON                 NOT NULL COMMENT 'Chart & reporting configuration',\n\n `created_at` DATETIME             NOT NULL DEFAULT CURRENT_TIMESTAMP,\n `updated_at` DATETIME                      DEFAULT NULL,\n `deleted_at` DATETIME                      DEFAULT NULL,\n\n PRIMARY KEY (`id`)\n\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\nPK\x07\x08\xcf\xc6g\xf6\xe4\x01\x00\x00\xe4\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#\x00	\x0020181224122301.rem-crm_field.up.sqlUT\x05\x00\x01\x80Cm8DROP TABLE `crm_field`;\nPK\x07\x08\xae \xfd2\x18\x00\x00\x00\x18\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00&\x00	\x0020190108100000.add-triggers-tbl.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE `crm_trigger` (\n `id`         BIGINT(20)  UNSIGNED NOT NULL,\n `name`       VARCHAR(64)          NOT NULL COMMENT 'The name of the trigger',\n `enabled`    BOOLEAN              NOT NULL COMMENT 'Trigger enabled?',\n `actions`    TEXT                 NOT NULL COMMENT 'All actions that trigger it',\n `source`     TEXT                 NOT NULL COMMENT 'Trigger source',\n `rel_module` BIGINT(20)  UNSIGNED     NULL COMMENT 'Primary module',\n\n `created_at` DATETIME             NOT NULL DEFAULT CURRENT_TIMESTAMP,\n `updated_at` DATETIME                      DEFAULT NULL,\n `deleted_at` DATETIME                      DEFAULT NULL,\n\n PRIMARY KEY (`id`)\n\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\nPK\x07\x08+\xad\xb7\xed\xb8\x02\x00\x00\xb8\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00/\x00	\x0020190110175924.rem-crm-record-json-field.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_record` DROP COLUMN `json`;\nPK\x07\x08\x94#\xb9\x99-\x00\x00\x00-\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x008\x00	\x0020190114072000.cleanup-record-tables-and-multival.up.sqlUT\x05\x00\x01\x80Cm8-- No more links, we'll handle this through ref field on crm_record_value tbl\nDROP TABLE IF EXISTS `crm_record_links`;\n\n-- Not columns, values\nALTER TABLE `crm_record_column` RENAME TO `crm_record_value`;\n\n-- Simplify names\nALTER TABLE `crm_record_value` CHANGE COLUMN `column_name`  `name`  VARCHAR(64);\nALTER TABLE `crm_record_value` CHANGE COLUMN `column_value` `value` TEXT;\n\n-- Add reference\nALTER TABLE `crm_record_value` ADD  COLUMN `ref` BIGINT UNSIGNED DEFAULT 0 NOT NULL;\nALTER TABLE `crm_record_value` ADD  COLUMN `deleted_at` datetime DEFAULT NULL;\nALTER TABLE `crm_record_value` ADD  COLUMN `place` INT UNSIGNED DEFAULT 0 NOT NULL;\nALTER TABLE `crm_record_value` DROP PRIMARY KEY, ADD PRIMARY KEY(`record_id`, `name`, `place`);\nCREATE INDEX crm_record_value_ref ON crm_record_value (ref);\n\n\n-- We want this as a real field\nALTER TABLE `crm_module_form`  ADD  COLUMN `is_multi` TINYINT(1) NOT NULL;\n\n-- This will be handled through meta(json) fieldd\nALTER TABLE `crm_module_form`  DROP COLUMN `help_text`;\nALTER TABLE `crm_module_form`  DROP COLUMN `max_length`;\nALTER TABLE `crm_module_form`  DROP COLUMN `default_Value`;\nPK\x07\x08\x04]{\x1fo\x04\x00\x00o\x04\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'\x00	\x0020190121132408.record-updated-by.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_record` CHANGE COLUMN `user_id`  `owned_by` BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE `crm_record` ADD COLUMN `created_by` BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE `crm_record` ADD COLUMN `updated_by` BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE `crm_record` ADD COLUMN `deleted_by` BIGINT UNSIGNED NOT NULL DEFAULT 0;\nUPDATE crm_record SET created_by = owned_by;\nUPDATE crm_record SET updated_by = owned_by WHERE updated_at IS NOT NULL;\nUPDATE crm_record SET deleted_by = owned_by WHERE deleted_at IS NOT NULL;\nPK\x07\x08h\xe2\xeb\n!\x02\x00\x00!\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00 \x00	\x0020190227090642.attachment.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE crm_attachment (\n  id               BIGINT UNSIGNED NOT NULL,\n  rel_owner        BIGINT UNSIGNED NOT NULL,\n\n  kind             VARCHAR(32) NOT NULL,\n\n  url              VARCHAR(512),\n  preview_url      VARCHAR(512),\n\n  size             INT    UNSIGNED,\n  mimetype         VARCHAR(255),\n  name             TEXT,\n\n  meta             JSON,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n  updated_at       DATETIME            NULL,\n  deleted_at       DATETIME            NULL,\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\n-- page attachments will be referenced via page-block meta data\n-- module/record attachment will be referenced via crm_record_value\nPK\x07\x08\xce\xde?\x08\xb3\x02\x00\x00\xb3\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'\x00	\x0020190427180922.change-tbl-prefix.up.sqlUT\x05\x00\x01\x80Cm8DROP TABLE IF EXISTS crm_field;\nDROP TABLE IF EXISTS crm_fields;\nDROP TABLE IF EXISTS crm_content;\nDROP TABLE IF EXISTS crm_content_links;\nDROP TABLE IF EXISTS crm_content_column;\nDROP TABLE IF EXISTS crm_module_content;\n\nALTER TABLE crm_attachment\n  RENAME TO compose_attachment;\n\nALTER TABLE crm_chart\n  RENAME TO compose_chart;\n\nALTER TABLE crm_module\n  RENAME TO compose_module;\n\nALTER TABLE crm_module_form\n  RENAME TO compose_module_form;\n\nALTER TABLE crm_page\n  RENAME TO compose_page;\n\nALTER TABLE crm_record\n  RENAME TO compose_record;\n\nALTER TABLE crm_record_value\n  RENAME TO compose_record_value;\n\nALTER TABLE crm_trigger\n  RENAME TO compose_trigger;\nPK\x07\x08\xf2\x1a)|\x97\x02\x00\x00\x97\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#\x00	\x0020190427210922.namespace-tbl.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE `compose_namespace` (\n `id`         BIGINT(20)  UNSIGNED NOT NULL,\n `name`       VARCHAR(64)          NOT NULL COMMENT 'Name',\n `slug`       VARCHAR(64)          NOT NULL COMMENT 'URL slug',\n `enabled`    BOOLEAN              NOT NULL COMMENT 'Is namespace enabled?',\n `meta`       JSON                 NOT NULL COMMENT 'Meta data',\n\n `created_at` DATETIME             NOT NULL DEFAULT CURRENT_TIMESTAMP,\n `updated_at` DATETIME                      DEFAULT NULL,\n `deleted_at` DATETIME                      DEFAULT NULL,\n\n PRIMARY KEY (`id`)\n\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\nPK\x07\x08m\xeb\xed~R\x02\x00\x00R\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00$\x00	\x0020190428080000.namespace-refs.up.sqlUT\x05\x00\x01\x80Cm8INSERT INTO compose_namespace (id, name, slug, enabled, meta) VALUES (88714882739863655, 'Crust CRM', 'crm', true, '{}');\n\nALTER TABLE `compose_attachment`\n        ADD `rel_namespace` BIGINT UNSIGNED NOT NULL AFTER `id`,\n        ADD INDEX (`rel_namespace`);\n\nALTER TABLE `compose_chart`\n        ADD `rel_namespace` BIGINT UNSIGNED NOT NULL AFTER `id`,\n        ADD INDEX (`rel_namespace`);\n\nALTER TABLE `compose_module`\n        ADD `rel_namespace` BIGINT UNSIGNED NOT NULL AFTER `id`,\n        ADD INDEX (`rel_namespace`);\n\nALTER TABLE `compose_page`\n        ADD `rel_namespace` BIGINT UNSIGNED NOT NULL AFTER `id`,\n        ADD INDEX (`rel_namespace`);\n\nALTER TABLE `compose_record`\n        ADD `rel_namespace` BIGINT UNSIGNED NOT NULL AFTER `id`,\n        ADD INDEX (`rel_namespace`);\n\nALTER TABLE `compose_trigger`\n        ADD `rel_namespace` BIGINT UNSIGNED NOT NULL AFTER `id`,\n        ADD INDEX (`rel_namespace`);\n\nUPDATE `compose_attachment`   SET `rel_namespace` = 88714882739863655;\nUPDATE `compose_chart`        SET `rel_namespace` = 88714882739863655;\nUPDATE `compose_module`       SET `rel_namespace` = 88714882739863655;\nUPDATE `compose_page`         SET `rel_namespace` = 88714882739863655;\nUPDATE `compose_record`       SET `rel_namespace` = 88714882739863655;\nUPDATE `compose_trigger`      SET `rel_namespace` = 88714882739863655;\n\n\nALTER TABLE `compose_attachment`\n        ADD CONSTRAINT `compose_attachment_namespace`\n            FOREIGN KEY (`rel_namespace`)\n            REFERENCES `compose_namespace` (`id`);\n\nALTER TABLE `compose_chart`\n        ADD CONSTRAINT `compose_chart_namespace`\n            FOREIGN KEY (`rel_namespace`)\n            REFERENCES `compose_namespace` (`id`);\n\nALTER TABLE `compose_module`\n        ADD CONSTRAINT `compose_module_namespace`\n            FOREIGN KEY (`rel_namespace`)\n            REFERENCES `compose_namespace` (`id`);\n\nALTER TABLE `compose_page`\n        ADD CONSTRAINT `compose_page_namespace`\n            FOREIGN KEY (`rel_namespace`)\n            REFERENCES `compose_namespace` (`id`);\n\nALTER TABLE `compose_record`\n        ADD CONSTRAINT `compose_record_namespace`\n            FOREIGN KEY (`rel_namespace`)\n            REFERENCES `compose_namespace` (`id`);\n\nALTER TABLE `compose_trigger`\n        ADD CONSTRAINT `compose_trigger_namespace`\n            FOREIGN KEY (`rel_namespace`)\n            REFERENCES `compose_namespace` (`id`);\nPK\x07\x08\xb2\x05Q\x14R	\x00\x00R	\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00%\x00	\x0020190428080000.page-timestamps.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `compose_page`\n    ADD COLUMN `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,\n    ADD COLUMN `updated_at` DATETIME DEFAULT NULL,\n    ADD COLUMN `deleted_at` DATETIME DEFAULT NULL;\n\nALTER TABLE `compose_page` CHANGE COLUMN `module_id` `rel_module` BIGINT UNSIGNED NOT NULL DEFAULT 0;\nPK\x07\x08\x82\x01Rn1\x01\x00\x001\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#\x00	\x0020190514090000.module_fields.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE compose_module_form\n    RENAME TO compose_module_field;\n\n-- Remove orphaned and invalid fields\nDELETE FROM `compose_module_field` WHERE `module_id` NOT IN (SELECT `id` FROM `compose_module`) OR `name` = '';\n\n-- Order and consistency.\nALTER TABLE `compose_module_field`\n    ADD COLUMN `id`         BIGINT UNSIGNED NOT NULL FIRST,\n    ADD COLUMN `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,\n    ADD COLUMN `updated_at` DATETIME DEFAULT NULL,\n    ADD COLUMN `deleted_at` DATETIME DEFAULT NULL,\n    RENAME COLUMN `module_id` TO `rel_module`,\n    RENAME COLUMN `json`      TO `options`;\n\n-- Generate IDs for the new field, use module, offset by one (just to start with a different ID)\n-- and use place (0 based, +1 for every field, expecting to be unique per module because of the existing pkey)\nUPDATE `compose_module_field` SET id = rel_module + 1 + place;\n\n-- Drop old primary key (module_id, place)\nALTER TABLE `compose_module_field` DROP PRIMARY KEY, ADD PRIMARY KEY(`id`);\n\n-- Foreign key\nALTER TABLE `compose_module_field`\n    ADD CONSTRAINT `compose_module`\n        FOREIGN KEY (`rel_module`)\n            REFERENCES `compose_module` (`id`);\n\n-- And unique indexes for module+place/name combos.\nCREATE UNIQUE INDEX uid_compose_module_field_place ON compose_module_field (`rel_module`, `place`);\nCREATE UNIQUE INDEX uid_compose_module_field_name  ON compose_module_field (`rel_module`, `name`);\nPK\x07\x08\xb1(\xbb\xf0\x8d\x05\x00\x00\x8d\x05\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00!\x00	\x0020190526090000.permissions.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE IF NOT EXISTS compose_permission_rules (\n  rel_role   BIGINT UNSIGNED NOT NULL,\n  resource   VARCHAR(128)    NOT NULL,\n  operation  VARCHAR(128)    NOT NULL,\n  access     TINYINT(1)      NOT NULL,\n\n  PRIMARY KEY (rel_role, resource, operation)\n) ENGINE=InnoDB;\nPK\x07\x08\"\xd8\xe5H\x12\x01\x00\x00\x12\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0e\x00	\x00migrations.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE IF NOT EXISTS `migrations` (\n `project` varchar(16) NOT NULL COMMENT 'sam, crm, ...',\n `filename` varchar(255) NOT NULL COMMENT 'yyyymmddHHMMSS.sql',\n `statement_index` int(11) NOT NULL COMMENT 'Statement number from SQL file',\n `status` text NOT NULL COMMENT 'ok or full error 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+var Asset = "PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1a\x00	\x0020180704080000.base.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE `crm_content` (\n `id` bigint(20) unsigned NOT NULL,\n `module_id` bigint(20) unsigned NOT NULL,\n `created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,\n `updated_at` datetime DEFAULT NULL,\n `deleted_at` datetime DEFAULT NULL,\n PRIMARY KEY (`id`,`module_id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE `crm_content_column` (\n `content_id` bigint(20) NOT NULL,\n `column_name` varchar(255) NOT NULL,\n `column_value` text NOT NULL,\n PRIMARY KEY (`content_id`,`column_name`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE `crm_field` (\n `field_type` varchar(16) NOT NULL COMMENT 'Short field type (string, boolean,...)',\n `field_name` varchar(255) NOT NULL COMMENT 'Description of field contents',\n `field_template` varchar(255) NOT NULL COMMENT 'HTML template file for field',\n PRIMARY KEY (`field_type`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE `crm_module` (\n `id` bigint(20) unsigned NOT NULL,\n `name` varchar(64) NOT NULL COMMENT 'The name of the module',\n `json` json NOT NULL COMMENT 'List of field definitions for the module',\n `created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,\n `updated_at` datetime DEFAULT NULL,\n `deleted_at` datetime DEFAULT NULL,\n PRIMARY KEY (`id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE `crm_module_form` (\n `module_id` bigint(20) unsigned NOT NULL,\n `place` tinyint(3) unsigned NOT NULL,\n `kind` varchar(64) NOT NULL COMMENT 'The type of the form input field',\n `name` varchar(64) NOT NULL COMMENT 'The name of the field in the form',\n `label` varchar(255) NOT NULL COMMENT 'The label of the form input',\n `help_text` text NOT NULL COMMENT 'Help text',\n `default_value` text NOT NULL COMMENT 'Default value',\n `max_length` int(10) unsigned NOT NULL COMMENT 'Maximum input length',\n `is_private` tinyint(1) NOT NULL COMMENT 'Contains personal/sensitive data?',\n PRIMARY KEY (`module_id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE `crm_page` (\n `id` bigint(20) unsigned NOT NULL COMMENT 'Page ID',\n `self_id` bigint(20) unsigned NOT NULL COMMENT 'Parent Page ID',\n `module_id` bigint(20) unsigned NOT NULL COMMENT 'Module ID (optional)',\n `title` varchar(255) NOT NULL COMMENT 'Title (required)',\n `description` text NOT NULL COMMENT 'Description',\n `blocks` json NOT NULL COMMENT 'JSON array of blocks for the page',\n `visible` tinyint(4) NOT NULL COMMENT 'Is page visible in navigation?',\n `weight` int(11) NOT NULL COMMENT 'Order for navigation',\n PRIMARY KEY (`id`) USING BTREE,\n KEY `module_id` (`module_id`),\n KEY `self_id` (`self_id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nPK\x07\x08\xac\xe8\x19\x1d\x12\n\x00\x00\x12\n\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00%\x00	\x0020180704080001.crm_fields-data.up.sqlUT\x05\x00\x01\x80Cm8INSERT INTO `crm_field` VALUES ('bool','Boolean value (yes / no)','');\nINSERT INTO `crm_field` VALUES ('email','E-mail input','');\nINSERT INTO `crm_field` VALUES ('enum','Single option picker','');\nINSERT INTO `crm_field` VALUES ('hidden','Hidden value','');\nINSERT INTO `crm_field` VALUES ('stamp','Date/time input','');\nINSERT INTO `crm_field` VALUES ('text','Text input','');\nINSERT INTO `crm_field` VALUES ('textarea','Text input (multi-line)','');\nPK\x07\x08f\x18\x1e\x84\xc5\x01\x00\x00\xc5\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00+\x00	\x0020181109133134.crm_content-ownership.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_content` ADD `user_id` BIGINT UNSIGNED NOT NULL AFTER `module_id`, ADD INDEX (`user_id`);\nPK\x07\x08\xeb!\x81\xc2k\x00\x00\x00k\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00.\x00	\x0020181109193047.crm_fields-related_types.up.sqlUT\x05\x00\x01\x80Cm8INSERT INTO `crm_field` (`field_type`, `field_name`, `field_template`) VALUES ('related', 'Related content', ''), ('related_multi', 'Related content (multiple)', '');PK\x07\x08:.\xfb8\xa6\x00\x00\x00\xa6\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x000\x00	\x0020181125122152.add_multiple_relationships.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE `crm_content_links` (\n `content_id` bigint(20) unsigned NOT NULL,\n `column_name` varchar(255) NOT NULL,\n `rel_content_id` bigint(20) unsigned NOT NULL,\n PRIMARY KEY (`content_id`,`column_name`,`rel_content_id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;PK\x07\x08\xee\x12\x15	\x05\x01\x00\x00\x05\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00D\x00	\x0020181125132142.add_required_and_visible_to_module_form_fields.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_module_form` ADD `is_required` TINYINT(1) NOT NULL AFTER `is_private`, ADD `is_visible` TINYINT(1) NOT NULL AFTER `is_required`;PK\x07\x08\xa5q c\x91\x00\x00\x00\x91\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x005\x00	\x0020181202163130.fix-crm-module-form-primary-key.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_module_form` DROP PRIMARY KEY, ADD PRIMARY KEY(`module_id`, `place`);\nPK\x07\x08\xd9\xd4i\xe3W\x00\x00\x00W\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x000\x00	\x0020181204123650.add-crm-content-json-field.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_content` ADD `json` json DEFAULT NULL COMMENT 'Content in JSON format.' AFTER `user_id`;\nPK\x07\x08\"\x96\xd6pj\x00\x00\x00j\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x004\x00	\x0020181204155326.add-crm-module-form-json-field.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_module_form` ADD `json` JSON NOT NULL COMMENT 'Options in JSON format.' AFTER `kind`;PK\x07\x08\xb7\x93\xd4\xf6f\x00\x00\x00f\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00+\x00	\x0020181216214630.crm-content-to-record.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_content` RENAME TO `crm_record`;\nALTER TABLE `crm_record` MODIFY COLUMN `json` json DEFAULT NULL COMMENT 'Records in JSON format.';\n\nALTER TABLE `crm_content_column` RENAME TO `crm_record_column`;\nALTER TABLE `crm_record_column` CHANGE COLUMN `content_id` `record_id` bigint(20);\n\nALTER TABLE `crm_content_links` RENAME TO `crm_record_links`;\nALTER TABLE `crm_record_links` CHANGE COLUMN `content_id` `record_id` bigint(20) unsigned;\nALTER TABLE `crm_record_links` CHANGE COLUMN `rel_content_id` `rel_record_id` bigint(20) unsigned;\nPK\x07\x08mA\xa8\x1e&\x02\x00\x00&\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00$\x00	\x0020181217100000.add-charts-tbl.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE `crm_chart` (\n `id`         BIGINT(20)  UNSIGNED NOT NULL,\n `name`       VARCHAR(64)          NOT NULL COMMENT 'The name of the chart',\n `config`     JSON                 NOT NULL COMMENT 'Chart & reporting configuration',\n\n `created_at` DATETIME             NOT NULL DEFAULT CURRENT_TIMESTAMP,\n `updated_at` DATETIME                      DEFAULT NULL,\n `deleted_at` DATETIME                      DEFAULT NULL,\n\n PRIMARY KEY (`id`)\n\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\nPK\x07\x08\xcf\xc6g\xf6\xe4\x01\x00\x00\xe4\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#\x00	\x0020181224122301.rem-crm_field.up.sqlUT\x05\x00\x01\x80Cm8DROP TABLE `crm_field`;\nPK\x07\x08\xae \xfd2\x18\x00\x00\x00\x18\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00&\x00	\x0020190108100000.add-triggers-tbl.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE `crm_trigger` (\n `id`         BIGINT(20)  UNSIGNED NOT NULL,\n `name`       VARCHAR(64)          NOT NULL COMMENT 'The name of the trigger',\n `enabled`    BOOLEAN              NOT NULL COMMENT 'Trigger enabled?',\n `actions`    TEXT                 NOT NULL COMMENT 'All actions that trigger it',\n `source`     TEXT                 NOT NULL COMMENT 'Trigger source',\n `rel_module` BIGINT(20)  UNSIGNED     NULL COMMENT 'Primary module',\n\n `created_at` DATETIME             NOT NULL DEFAULT CURRENT_TIMESTAMP,\n `updated_at` DATETIME                      DEFAULT NULL,\n `deleted_at` DATETIME                      DEFAULT NULL,\n\n PRIMARY KEY (`id`)\n\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\nPK\x07\x08+\xad\xb7\xed\xb8\x02\x00\x00\xb8\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00/\x00	\x0020190110175924.rem-crm-record-json-field.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_record` DROP COLUMN `json`;\nPK\x07\x08\x94#\xb9\x99-\x00\x00\x00-\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x008\x00	\x0020190114072000.cleanup-record-tables-and-multival.up.sqlUT\x05\x00\x01\x80Cm8-- No more links, we'll handle this through ref field on crm_record_value tbl\nDROP TABLE IF EXISTS `crm_record_links`;\n\n-- Not columns, values\nALTER TABLE `crm_record_column` RENAME TO `crm_record_value`;\n\n-- Simplify names\nALTER TABLE `crm_record_value` CHANGE COLUMN `column_name`  `name`  VARCHAR(64);\nALTER TABLE `crm_record_value` CHANGE COLUMN `column_value` `value` TEXT;\n\n-- Add reference\nALTER TABLE `crm_record_value` ADD  COLUMN `ref` BIGINT UNSIGNED DEFAULT 0 NOT NULL;\nALTER TABLE `crm_record_value` ADD  COLUMN `deleted_at` datetime DEFAULT NULL;\nALTER TABLE `crm_record_value` ADD  COLUMN `place` INT UNSIGNED DEFAULT 0 NOT NULL;\nALTER TABLE `crm_record_value` DROP PRIMARY KEY, ADD PRIMARY KEY(`record_id`, `name`, `place`);\nCREATE INDEX crm_record_value_ref ON crm_record_value (ref);\n\n\n-- We want this as a real field\nALTER TABLE `crm_module_form`  ADD  COLUMN `is_multi` TINYINT(1) NOT NULL;\n\n-- This will be handled through meta(json) fieldd\nALTER TABLE `crm_module_form`  DROP COLUMN `help_text`;\nALTER TABLE `crm_module_form`  DROP COLUMN `max_length`;\nALTER TABLE `crm_module_form`  DROP COLUMN `default_Value`;\nPK\x07\x08\x04]{\x1fo\x04\x00\x00o\x04\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'\x00	\x0020190121132408.record-updated-by.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `crm_record` CHANGE COLUMN `user_id`  `owned_by` BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE `crm_record` ADD COLUMN `created_by` BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE `crm_record` ADD COLUMN `updated_by` BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE `crm_record` ADD COLUMN `deleted_by` BIGINT UNSIGNED NOT NULL DEFAULT 0;\nUPDATE crm_record SET created_by = owned_by;\nUPDATE crm_record SET updated_by = owned_by WHERE updated_at IS NOT NULL;\nUPDATE crm_record SET deleted_by = owned_by WHERE deleted_at IS NOT NULL;\nPK\x07\x08h\xe2\xeb\n!\x02\x00\x00!\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00 \x00	\x0020190227090642.attachment.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE crm_attachment (\n  id               BIGINT UNSIGNED NOT NULL,\n  rel_owner        BIGINT UNSIGNED NOT NULL,\n\n  kind             VARCHAR(32) NOT NULL,\n\n  url              VARCHAR(512),\n  preview_url      VARCHAR(512),\n\n  size             INT    UNSIGNED,\n  mimetype         VARCHAR(255),\n  name             TEXT,\n\n  meta             JSON,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n  updated_at       DATETIME            NULL,\n  deleted_at       DATETIME            NULL,\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\n-- page attachments will be referenced via page-block meta data\n-- module/record attachment will be referenced via crm_record_value\nPK\x07\x08\xce\xde?\x08\xb3\x02\x00\x00\xb3\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'\x00	\x0020190427180922.change-tbl-prefix.up.sqlUT\x05\x00\x01\x80Cm8DROP TABLE IF EXISTS crm_field;\nDROP TABLE IF EXISTS crm_fields;\nDROP TABLE IF EXISTS crm_content;\nDROP TABLE IF EXISTS crm_content_links;\nDROP TABLE IF EXISTS crm_content_column;\nDROP TABLE IF EXISTS crm_module_content;\n\nALTER TABLE crm_attachment\n  RENAME TO compose_attachment;\n\nALTER TABLE crm_chart\n  RENAME TO compose_chart;\n\nALTER TABLE crm_module\n  RENAME TO compose_module;\n\nALTER TABLE crm_module_form\n  RENAME TO compose_module_form;\n\nALTER TABLE crm_page\n  RENAME TO compose_page;\n\nALTER TABLE crm_record\n  RENAME TO compose_record;\n\nALTER TABLE crm_record_value\n  RENAME TO compose_record_value;\n\nALTER TABLE crm_trigger\n  RENAME TO compose_trigger;\nPK\x07\x08\xf2\x1a)|\x97\x02\x00\x00\x97\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#\x00	\x0020190427210922.namespace-tbl.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE `compose_namespace` (\n `id`         BIGINT(20)  UNSIGNED NOT NULL,\n `name`       VARCHAR(64)          NOT NULL COMMENT 'Name',\n `slug`       VARCHAR(64)          NOT NULL COMMENT 'URL slug',\n `enabled`    BOOLEAN              NOT NULL COMMENT 'Is namespace enabled?',\n `meta`       JSON                 NOT NULL COMMENT 'Meta data',\n\n `created_at` DATETIME             NOT NULL DEFAULT CURRENT_TIMESTAMP,\n `updated_at` DATETIME                      DEFAULT NULL,\n `deleted_at` DATETIME                      DEFAULT NULL,\n\n PRIMARY KEY (`id`)\n\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\nPK\x07\x08m\xeb\xed~R\x02\x00\x00R\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00$\x00	\x0020190428080000.namespace-refs.up.sqlUT\x05\x00\x01\x80Cm8INSERT IGNORE INTO compose_namespace (id, name, slug, enabled, meta)\n            VALUES (88714882739863655, 'Crust CRM', 'crm', true, '{}');\n\nALTER TABLE `compose_attachment`\n        ADD `rel_namespace` BIGINT UNSIGNED NOT NULL AFTER `id`,\n        ADD INDEX (`rel_namespace`);\n\nALTER TABLE `compose_chart`\n        ADD `rel_namespace` BIGINT UNSIGNED NOT NULL AFTER `id`,\n        ADD INDEX (`rel_namespace`);\n\nALTER TABLE `compose_module`\n        ADD `rel_namespace` BIGINT UNSIGNED NOT NULL AFTER `id`,\n        ADD INDEX (`rel_namespace`);\n\nALTER TABLE `compose_page`\n        ADD `rel_namespace` BIGINT UNSIGNED NOT NULL AFTER `id`,\n        ADD INDEX (`rel_namespace`);\n\nALTER TABLE `compose_record`\n        ADD `rel_namespace` BIGINT UNSIGNED NOT NULL AFTER `id`,\n        ADD INDEX (`rel_namespace`);\n\nALTER TABLE `compose_trigger`\n        ADD `rel_namespace` BIGINT UNSIGNED NOT NULL AFTER `id`,\n        ADD INDEX (`rel_namespace`);\n\nUPDATE `compose_attachment`   SET `rel_namespace` = 88714882739863655;\nUPDATE `compose_chart`        SET `rel_namespace` = 88714882739863655;\nUPDATE `compose_module`       SET `rel_namespace` = 88714882739863655;\nUPDATE `compose_page`         SET `rel_namespace` = 88714882739863655;\nUPDATE `compose_record`       SET `rel_namespace` = 88714882739863655;\nUPDATE `compose_trigger`      SET `rel_namespace` = 88714882739863655;\n\n\nALTER TABLE `compose_attachment`\n        ADD CONSTRAINT `compose_attachment_namespace`\n            FOREIGN KEY (`rel_namespace`)\n            REFERENCES `compose_namespace` (`id`);\n\nALTER TABLE `compose_chart`\n        ADD CONSTRAINT `compose_chart_namespace`\n            FOREIGN KEY (`rel_namespace`)\n            REFERENCES `compose_namespace` (`id`);\n\nALTER TABLE `compose_module`\n        ADD CONSTRAINT `compose_module_namespace`\n            FOREIGN KEY (`rel_namespace`)\n            REFERENCES `compose_namespace` (`id`);\n\nALTER TABLE `compose_page`\n        ADD CONSTRAINT `compose_page_namespace`\n            FOREIGN KEY (`rel_namespace`)\n            REFERENCES `compose_namespace` (`id`);\n\nALTER TABLE `compose_record`\n        ADD CONSTRAINT `compose_record_namespace`\n            FOREIGN KEY (`rel_namespace`)\n            REFERENCES `compose_namespace` (`id`);\n\nALTER TABLE `compose_trigger`\n        ADD CONSTRAINT `compose_trigger_namespace`\n            FOREIGN KEY (`rel_namespace`)\n            REFERENCES `compose_namespace` (`id`);\nPK\x07\x08\xfc\xdb\xfd\xdde	\x00\x00e	\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00%\x00	\x0020190428080000.page-timestamps.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `compose_page`\n    ADD COLUMN `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,\n    ADD COLUMN `updated_at` DATETIME DEFAULT NULL,\n    ADD COLUMN `deleted_at` DATETIME DEFAULT NULL;\n\nALTER TABLE `compose_page` CHANGE COLUMN `module_id` `rel_module` BIGINT UNSIGNED NOT NULL DEFAULT 0;\nPK\x07\x08\x82\x01Rn1\x01\x00\x001\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#\x00	\x0020190514090000.module_fields.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE compose_module_form\n    RENAME TO compose_module_field;\n\n-- Remove orphaned and invalid fields\nDELETE FROM `compose_module_field` WHERE `module_id` NOT IN (SELECT `id` FROM `compose_module`) OR `name` = '';\n\n-- Order and consistency.\nALTER TABLE `compose_module_field`\n    ADD COLUMN `id`         BIGINT UNSIGNED NOT NULL FIRST,\n    ADD COLUMN `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,\n    ADD COLUMN `updated_at` DATETIME DEFAULT NULL,\n    ADD COLUMN `deleted_at` DATETIME DEFAULT NULL,\n    RENAME COLUMN `module_id` TO `rel_module`,\n    RENAME COLUMN `json`      TO `options`;\n\n-- Generate IDs for the new field, use module, offset by one (just to start with a different ID)\n-- and use place (0 based, +1 for every field, expecting to be unique per module because of the existing pkey)\nUPDATE `compose_module_field` SET id = rel_module + 1 + place;\n\n-- Drop old primary key (module_id, place)\nALTER TABLE `compose_module_field` DROP PRIMARY KEY, ADD PRIMARY KEY(`id`);\n\n-- Foreign key\nALTER TABLE `compose_module_field`\n    ADD CONSTRAINT `compose_module`\n        FOREIGN KEY (`rel_module`)\n            REFERENCES `compose_module` (`id`);\n\n-- And unique indexes for module+place/name combos.\nCREATE UNIQUE INDEX uid_compose_module_field_place ON compose_module_field (`rel_module`, `place`);\nCREATE UNIQUE INDEX uid_compose_module_field_name  ON compose_module_field (`rel_module`, `name`);\nPK\x07\x08\xb1(\xbb\xf0\x8d\x05\x00\x00\x8d\x05\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00!\x00	\x0020190526090000.permissions.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE IF NOT EXISTS compose_permission_rules (\n  rel_role   BIGINT UNSIGNED NOT NULL,\n  resource   VARCHAR(128)    NOT NULL,\n  operation  VARCHAR(128)    NOT NULL,\n  access     TINYINT(1)      NOT NULL,\n\n  PRIMARY KEY (rel_role, resource, operation)\n) ENGINE=InnoDB;\nPK\x07\x08\"\xd8\xe5H\x12\x01\x00\x00\x12\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0e\x00	\x00migrations.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE IF NOT EXISTS `migrations` (\n `project` varchar(16) NOT NULL COMMENT 'sam, crm, ...',\n `filename` varchar(255) NOT NULL COMMENT 'yyyymmddHHMMSS.sql',\n `statement_index` int(11) NOT NULL COMMENT 'Statement number from SQL file',\n `status` text NOT NULL COMMENT 'ok or full error message',\n PRIMARY KEY (`project`,`filename`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nPK\x07\x089S\x05%x\x01\x00\x00x\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00	\x00new.shUT\x05\x00\x01\x80Cm8#!/bin/bash\ntouch $(date +%Y%m%d%H%M%S).up.sql\nPK\x07\x08\xc1h\xf1\xfb/\x00\x00\x00/\x00\x00\x00PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xac\xe8\x19\x1d\x12\n\x00\x00\x12\n\x00\x00\x1a\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x00\x00\x00\x0020180704080000.base.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(f\x18\x1e\x84\xc5\x01\x00\x00\xc5\x01\x00\x00%\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81c\n\x00\x0020180704080001.crm_fields-data.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xeb!\x81\xc2k\x00\x00\x00k\x00\x00\x00+\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x84\x0c\x00\x0020181109133134.crm_content-ownership.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(:.\xfb8\xa6\x00\x00\x00\xa6\x00\x00\x00.\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81Q\x0d\x00\x0020181109193047.crm_fields-related_types.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xee\x12\x15	\x05\x01\x00\x00\x05\x01\x00\x000\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\\\x0e\x00\x0020181125122152.add_multiple_relationships.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xa5q c\x91\x00\x00\x00\x91\x00\x00\x00D\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\xc8\x0f\x00\x0020181125132142.add_required_and_visible_to_module_form_fields.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xd9\xd4i\xe3W\x00\x00\x00W\x00\x00\x005\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\xd4\x10\x00\x0020181202163130.fix-crm-module-form-primary-key.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\"\x96\xd6pj\x00\x00\x00j\x00\x00\x000\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x97\x11\x00\x0020181204123650.add-crm-content-json-field.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xb7\x93\xd4\xf6f\x00\x00\x00f\x00\x00\x004\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81h\x12\x00\x0020181204155326.add-crm-module-form-json-field.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(mA\xa8\x1e&\x02\x00\x00&\x02\x00\x00+\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x819\x13\x00\x0020181216214630.crm-content-to-record.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xcf\xc6g\xf6\xe4\x01\x00\x00\xe4\x01\x00\x00$\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\xc1\x15\x00\x0020181217100000.add-charts-tbl.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xae \xfd2\x18\x00\x00\x00\x18\x00\x00\x00#\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x00\x18\x00\x0020181224122301.rem-crm_field.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(+\xad\xb7\xed\xb8\x02\x00\x00\xb8\x02\x00\x00&\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81r\x18\x00\x0020190108100000.add-triggers-tbl.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\x94#\xb9\x99-\x00\x00\x00-\x00\x00\x00/\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x87\x1b\x00\x0020190110175924.rem-crm-record-json-field.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\x04]{\x1fo\x04\x00\x00o\x04\x00\x008\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x1a\x1c\x00\x0020190114072000.cleanup-record-tables-and-multival.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(h\xe2\xeb\n!\x02\x00\x00!\x02\x00\x00'\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\xf8 \x00\x0020190121132408.record-updated-by.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xce\xde?\x08\xb3\x02\x00\x00\xb3\x02\x00\x00 \x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81w#\x00\x0020190227090642.attachment.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xf2\x1a)|\x97\x02\x00\x00\x97\x02\x00\x00'\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x81&\x00\x0020190427180922.change-tbl-prefix.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(m\xeb\xed~R\x02\x00\x00R\x02\x00\x00#\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81v)\x00\x0020190427210922.namespace-tbl.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xfc\xdb\xfd\xdde	\x00\x00e	\x00\x00$\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\",\x00\x0020190428080000.namespace-refs.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\x82\x01Rn1\x01\x00\x001\x01\x00\x00%\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\xe25\x00\x0020190428080000.page-timestamps.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xb1(\xbb\xf0\x8d\x05\x00\x00\x8d\x05\x00\x00#\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81o7\x00\x0020190514090000.module_fields.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\"\xd8\xe5H\x12\x01\x00\x00\x12\x01\x00\x00!\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81V=\x00\x0020190526090000.permissions.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(9S\x05%x\x01\x00\x00x\x01\x00\x00\x0e\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\xc0>\x00\x00migrations.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xc1h\xf1\xfb/\x00\x00\x00/\x00\x00\x00\x06\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xed\x81}@\x00\x00new.shUT\x05\x00\x01\x80Cm8PK\x05\x06\x00\x00\x00\x00\x19\x00\x19\x005	\x00\x00\xe9@\x00\x00\x00\x00"
diff --git a/docs/messaging/README.md b/docs/messaging/README.md
index de3575f5c..812693767 100644
--- a/docs/messaging/README.md
+++ b/docs/messaging/README.md
@@ -120,6 +120,7 @@ A channel is a representation of a sequence of messages. It has meta data like c
 | name | string | POST | Name of Channel | N/A | NO |
 | topic | string | POST | Subject of Channel | N/A | NO |
 | type | string | POST | Channel type | N/A | NO |
+| membershipPolicy | types.ChannelMembershipPolicy | POST | Membership policy (eg: featured, forced)? | N/A | NO |
 | members | []string | POST | Initial members of the channel | N/A | NO |
 
 ## Update channel details
@@ -137,6 +138,7 @@ A channel is a representation of a sequence of messages. It has meta data like c
 | channelID | uint64 | PATH | Channel ID | N/A | YES |
 | name | string | POST | Name of Channel | N/A | NO |
 | topic | string | POST | Subject of Channel | N/A | NO |
+| membershipPolicy | types.ChannelMembershipPolicy | POST | Membership policy (eg: featured, forced)? | N/A | NO |
 | type | string | POST | Channel type | N/A | NO |
 | organisationID | uint64 | POST | Move channel to different organisation | N/A | NO |
 
diff --git a/internal/payload/outgoing.go b/internal/payload/outgoing.go
index 070233e67..cd796a718 100644
--- a/internal/payload/outgoing.go
+++ b/internal/payload/outgoing.go
@@ -138,24 +138,26 @@ func Channel(ch *messagingTypes.Channel) *outgoing.Channel {
 	}
 
 	return &outgoing.Channel{
-		ID:             Uint64toa(ch.ID),
-		Name:           ch.Name,
-		LastMessageID:  Uint64toa(ch.LastMessageID),
-		Topic:          ch.Topic,
-		Type:           string(ch.Type),
-		MembershipFlag: string(flag),
-		Members:        Uint64stoa(ch.Members),
-		Unread:         ChannelUnread(ch.Unread),
+		ID:               Uint64toa(ch.ID),
+		Name:             ch.Name,
+		LastMessageID:    Uint64toa(ch.LastMessageID),
+		Topic:            ch.Topic,
+		Type:             string(ch.Type),
+		MembershipFlag:   string(flag),
+		MembershipPolicy: string(ch.MembershipPolicy),
+		Members:          Uint64stoa(ch.Members),
+		Unread:           ChannelUnread(ch.Unread),
 
-		CanJoin:           ch.CanJoin,
-		CanPart:           ch.CanPart,
-		CanObserve:        ch.CanObserve,
-		CanSendMessages:   ch.CanSendMessages,
-		CanDeleteMessages: ch.CanDeleteMessages,
-		CanChangeMembers:  ch.CanChangeMembers,
-		CanUpdate:         ch.CanUpdate,
-		CanArchive:        ch.CanArchive,
-		CanDelete:         ch.CanDelete,
+		CanJoin:                   ch.CanJoin,
+		CanPart:                   ch.CanPart,
+		CanObserve:                ch.CanObserve,
+		CanSendMessages:           ch.CanSendMessages,
+		CanDeleteMessages:         ch.CanDeleteMessages,
+		CanChangeMembers:          ch.CanChangeMembers,
+		CanChangeMembershipPolicy: ch.CanChangeMembershipPolicy,
+		CanUpdate:                 ch.CanUpdate,
+		CanArchive:                ch.CanArchive,
+		CanDelete:                 ch.CanDelete,
 
 		CreatedAt:  ch.CreatedAt,
 		UpdatedAt:  ch.UpdatedAt,
diff --git a/internal/payload/outgoing/channel.go b/internal/payload/outgoing/channel.go
index 669c0052d..2f5fd74cd 100644
--- a/internal/payload/outgoing/channel.go
+++ b/internal/payload/outgoing/channel.go
@@ -24,24 +24,26 @@ type (
 
 	Channel struct {
 		// Channel to part (nil) for ALL channels
-		ID             string   `json:"channelID"`
-		Name           string   `json:"name"`
-		Topic          string   `json:"topic"`
-		Type           string   `json:"type"`
-		LastMessageID  string   `json:"lastMessageID"`
-		Unread         *Unread  `json:"unread,omitempty"`
-		Members        []string `json:"members,omitempty"`
-		MembershipFlag string   `json:"membershipFlag"`
+		ID               string   `json:"channelID"`
+		Name             string   `json:"name"`
+		Topic            string   `json:"topic"`
+		Type             string   `json:"type"`
+		MembershipPolicy string   `json:"membershipPolicy"`
+		LastMessageID    string   `json:"lastMessageID"`
+		Unread           *Unread  `json:"unread,omitempty"`
+		Members          []string `json:"members,omitempty"`
+		MembershipFlag   string   `json:"membershipFlag"`
 
-		CanJoin           bool `json:"canJoin"`
-		CanPart           bool `json:"canPart"`
-		CanObserve        bool `json:"canObserve"`
-		CanSendMessages   bool `json:"canSendMessages"`
-		CanDeleteMessages bool `json:"canDeleteMessages"`
-		CanChangeMembers  bool `json:"canChangeMembers"`
-		CanUpdate         bool `json:"canUpdate"`
-		CanArchive        bool `json:"canArchive"`
-		CanDelete         bool `json:"canDelete"`
+		CanJoin                   bool `json:"canJoin"`
+		CanPart                   bool `json:"canPart"`
+		CanObserve                bool `json:"canObserve"`
+		CanSendMessages           bool `json:"canSendMessages"`
+		CanDeleteMessages         bool `json:"canDeleteMessages"`
+		CanChangeMembers          bool `json:"canChangeMembers"`
+		CanChangeMembershipPolicy bool `json:"canChangeMembershipPolicy"`
+		CanUpdate                 bool `json:"canUpdate"`
+		CanArchive                bool `json:"canArchive"`
+		CanDelete                 bool `json:"canDelete"`
 
 		CreatedAt  time.Time  `json:"createdAt"`
 		UpdatedAt  *time.Time `json:"updatedAt,omitempty"`
diff --git a/messaging/db/mysql/static.go b/messaging/db/mysql/static.go
index a15b7b8d2..de8c8f865 100644
--- a/messaging/db/mysql/static.go
+++ b/messaging/db/mysql/static.go
@@ -3,4 +3,4 @@
 // Package contains static assets.
 package mysql
 
-var Asset = "PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1a\x00	\x0020180704080000.base.up.sqlUT\x05\x00\x01\x80Cm8-- Keeps all known channels\nCREATE TABLE channels (\n  id               BIGINT UNSIGNED NOT NULL,\n  name             TEXT            NOT NULL, -- display name of the channel\n  topic            TEXT            NOT NULL,\n  meta             JSON            NOT NULL,\n\n  type             ENUM ('private', 'public', 'group') NOT NULL DEFAULT 'public',\n\n  rel_organisation BIGINT UNSIGNED NOT NULL REFERENCES organisation(id),\n  rel_creator      BIGINT UNSIGNED NOT NULL,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n  updated_at       DATETIME            NULL,\n  archived_at      DATETIME            NULL,\n  deleted_at       DATETIME            NULL, -- channel soft delete\n\n  rel_last_message BIGINT UNSIGNED NOT NULL DEFAULT 0,\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\n-- handles channel membership\nCREATE TABLE channel_members (\n  rel_channel      BIGINT UNSIGNED NOT NULL REFERENCES channels(id),\n  rel_user         BIGINT UNSIGNED NOT NULL,\n\n  type             ENUM ('owner', 'member', 'invitee') NOT NULL DEFAULT 'member',\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n  updated_at       DATETIME            NULL,\n\n  PRIMARY KEY (rel_channel, rel_user)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE channel_views (\n  rel_channel      BIGINT UNSIGNED NOT NULL REFERENCES channels(id),\n  rel_user         BIGINT UNSIGNED NOT NULL,\n\n  -- timestamp of last view, should be enough to find out which messaghr\n  viewed_at        DATETIME        NOT NULL DEFAULT NOW(),\n\n  -- new messages count since last view\n  new_since        INT    UNSIGNED NOT NULL DEFAULT 0,\n\n  PRIMARY KEY (rel_user, rel_channel)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE channel_pins (\n  rel_channel      BIGINT UNSIGNED NOT NULL REFERENCES channels(id),\n  rel_message      BIGINT UNSIGNED NOT NULL REFERENCES messages(id),\n  rel_user         BIGINT UNSIGNED NOT NULL,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n\n  PRIMARY KEY (rel_channel, rel_message)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE messages (\n  id               BIGINT UNSIGNED NOT NULL,\n  type             TEXT,\n  message          TEXT            NOT NULL,\n  meta             JSON,\n  rel_user         BIGINT UNSIGNED NOT NULL,\n  rel_channel      BIGINT UNSIGNED NOT NULL REFERENCES channels(id),\n  reply_to         BIGINT UNSIGNED     NULL REFERENCES messages(id),\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n  updated_at       DATETIME            NULL,\n  deleted_at       DATETIME            NULL,\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE reactions (\n  id               BIGINT UNSIGNED NOT NULL,\n  rel_user         BIGINT UNSIGNED NOT NULL,\n  rel_message      BIGINT UNSIGNED NOT NULL REFERENCES messages(id),\n  rel_channel      BIGINT UNSIGNED NOT NULL REFERENCES channels(id),\n  reaction         TEXT            NOT NULL,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE attachments (\n  id               BIGINT UNSIGNED NOT NULL,\n  rel_user         BIGINT UNSIGNED NOT NULL,\n\n  url              VARCHAR(512),\n  preview_url      VARCHAR(512),\n\n  size             INT    UNSIGNED,\n  mimetype         VARCHAR(255),\n  name             TEXT,\n\n  meta             JSON,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n  updated_at       DATETIME            NULL,\n  deleted_at       DATETIME            NULL,\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE message_attachment (\n  rel_message      BIGINT UNSIGNED NOT NULL REFERENCES messages(id),\n  rel_attachment   BIGINT UNSIGNED NOT NULL REFERENCES attachment(id),\n\n  PRIMARY KEY (rel_message)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE event_queue (\n  id               BIGINT UNSIGNED NOT NULL,\n  origin           BIGINT UNSIGNED NOT NULL,\n  subscriber       TEXT,\n  payload          JSON,\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE event_queue_synced (\n  origin           BIGINT UNSIGNED NOT NULL,\n  rel_last         BIGINT UNSIGNED NOT NULL,\n\n  PRIMARY KEY (origin)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\nPK\x07\x08\xd5\x9c\xef\x89V\x10\x00\x00V\x10\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00$\x00	\x0020181009080000.altering_types.up.sqlUT\x05\x00\x01\x80Cm8update channels set type = 'group' where type = 'direct';\nalter table channels CHANGE type type  enum('private', 'public', 'group');\nalter table channel_members CHANGE type type  enum('owner', 'member', 'invitee');\nPK\x07\x08E1\xf5\xa4\xd7\x00\x00\x00\xd7\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#\x00	\x0020181013080000.channel_views.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE channel_views DROP viewed_at;\nALTER TABLE channel_views ADD rel_last_message_id BIGINT UNSIGNED;\nALTER TABLE channel_views CHANGE new_since new_messages_count INT UNSIGNED;\n\n-- Table structure after these changes:\n-- +---------------------+---------------------+------+-----+---------+-------+\n-- | Field               | Type                | Null | Key | Default | Extra |\n-- +---------------------+---------------------+------+-----+---------+-------+\n-- | rel_channel         | bigint(20) unsigned | NO   | PRI | NULL    |       |\n-- | rel_user            | bigint(20) unsigned | NO   | PRI | NULL    |       |\n-- | rel_last_message_id | bigint(20) unsigned | YES  |     | NULL    |       |\n-- | new_messages_count  | int(10) unsigned    | NO   |     | 0       |       |\n-- +---------------------+---------------------+------+-----+---------+-------+\n\n-- Prefill with data\nINSERT INTO channel_views (rel_channel, rel_user, rel_last_message_id)\n  SELECT cm.rel_channel, cm.rel_user, max(m.ID)\n    FROM channel_members AS cm INNER JOIN messages AS m ON (m.rel_channel = cm.rel_channel)\n  GROUP BY cm.rel_channel, cm.rel_user;\n\nPK\x07\x08`\xcbP\xf9t\x04\x00\x00t\x04\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1d\x00	\x0020181013080000.replies.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE messages CHANGE reply_to reply_to BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE messages ADD replies INT UNSIGNED NOT NULL DEFAULT 0;\nPK\x07\x08m\xedWA\x94\x00\x00\x00\x94\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00(\x00	\x0020181101080000.pins_and_reactions.up.sqlUT\x05\x00\x01\x80Cm8DROP TABLE channel_pins;\nDROP TABLE reactions;\n\nCREATE TABLE message_flags (\n  id               BIGINT UNSIGNED NOT NULL,\n  rel_channel      BIGINT UNSIGNED NOT NULL,\n  rel_message      BIGINT UNSIGNED NOT NULL,\n  rel_user         BIGINT UNSIGNED NOT NULL,\n  flag             TEXT,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\nPK\x07\x08eA\x1eo\x90\x01\x00\x00\x90\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1e\x00	\x0020181107080000.mentions.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE mentions (\n  id               BIGINT UNSIGNED NOT NULL,\n  rel_channel      BIGINT UNSIGNED NOT NULL,\n  rel_message      BIGINT UNSIGNED NOT NULL,\n  rel_user         BIGINT UNSIGNED NOT NULL,\n  rel_mentioned_by BIGINT UNSIGNED NOT NULL,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE INDEX lookup_mentions ON mentions (rel_mentioned_by)\nPK\x07\x08\xfb\xe8\x9b\x98\xac\x01\x00\x00\xac\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1d\x00	\x0020181115080000.unreads.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE channel_views RENAME TO unreads;\n\nALTER TABLE unreads ADD     rel_reply_to                        BIGINT UNSIGNED NOT NULL AFTER rel_channel;\nALTER TABLE unreads CHANGE rel_channel         rel_channel      BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE unreads CHANGE rel_user            rel_user         BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE unreads CHANGE rel_last_message_id rel_last_message BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE unreads CHANGE new_messages_count  count            INT    UNSIGNED NOT NULL DEFAULT 0;\n\nPK\x07\x08jf1Q+\x02\x00\x00+\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00*\x00	\x0020181124173028.remove_events_tables.up.sqlUT\x05\x00\x01\x80Cm8DROP TABLE event_queue;\nDROP TABLE event_queue_synced;PK\x07\x08\xdd.y06\x00\x00\x006\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00)\x00	\x0020181205153145.messages-to-utf8mb4.up.sqlUT\x05\x00\x01\x80Cm8alter table messages convert to character set utf8mb4 collate utf8mb4_unicode_ci;PK\x07\x08Ig\xbfOQ\x00\x00\x00Q\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00&\x00	\x0020190122191150.membership-flags.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE channel_members ADD flag ENUM ('pinned', 'hidden', 'ignored', '') NOT NULL DEFAULT '' AFTER `type`;\nPK\x07\x084\xfb\xe3\xf4p\x00\x00\x00p\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#\x00	\x0020190206112022.prefix-tables.up.sqlUT\x05\x00\x01\x80Cm8-- misc tables\n\nALTER TABLE attachments            RENAME TO messaging_attachment;\nALTER TABLE mentions               RENAME TO messaging_mention;\nALTER TABLE unreads                RENAME TO messaging_unread;\n\n-- channel tables\n\nALTER TABLE channels               RENAME TO messaging_channel;\nALTER TABLE channel_members        RENAME TO messaging_channel_member;\n\n-- message tables\n\nALTER TABLE messages               RENAME TO messaging_message;\nALTER TABLE message_attachment     RENAME TO messaging_message_attachment;\nALTER TABLE message_flags          RENAME TO messaging_message_flag;\nPK\x07\x08\x145\xde}Q\x02\x00\x00Q\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#\x00	\x0020190326181923.webhook-table.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE `messaging_webhook` (\n `id` bigint(20) unsigned NOT NULL,\n `kind` varchar(8) NOT NULL COMMENT 'Kind: incoming, outgoing',\n `token` varchar(255) NOT NULL COMMENT 'Authentication token',\n `rel_owner` bigint(20) unsigned NOT NULL COMMENT 'Webhook owner User ID',\n `rel_user` bigint(20) unsigned NOT NULL COMMENT 'Webhook message User ID',\n `rel_channel` bigint(20) unsigned NOT NULL COMMENT 'Channel ID',\n `outgoing_trigger` varchar(32) NOT NULL COMMENT 'Outgoing command trigger',\n `outgoing_url` varchar(255) NOT NULL COMMENT 'URL for POST request',\n `created_at` datetime NOT NULL,\n `updated_at` datetime     NULL,\n `deleted_at` datetime     NULL,\n PRIMARY KEY (`id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\n-- get webhook by command trigger\nALTER TABLE `messaging_webhook` ADD UNIQUE(`outgoing_trigger`);\n\n-- list webhooks by owner (list your own webhooks)\nALTER TABLE `messaging_webhook` ADD INDEX(`rel_owner`);\n\n-- list webhooks on a channel\nALTER TABLE `messaging_webhook` ADD INDEX(`rel_channel`);\nPK\x07\x08\x16\x95.\xf3\xf7\x03\x00\x00\xf7\x03\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00!\x00	\x0020190526090000.permissions.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE IF NOT EXISTS messaging_permission_rules (\n  rel_role   BIGINT UNSIGNED NOT NULL,\n  resource   VARCHAR(128)    NOT NULL,\n  operation  VARCHAR(128)    NOT NULL,\n  access     TINYINT(1)      NOT NULL,\n\n  PRIMARY KEY (rel_role, resource, operation)\n) ENGINE=InnoDB;\nPK\x07\x08\xf0d&V\x14\x01\x00\x00\x14\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1d\x00	\x0020190623080000.unreads.up.sqlUT\x05\x00\x01\x80Cm8UPDATE `messaging_unread` SET rel_reply_to = 0 WHERE rel_reply_to IS NULL;\nALTER TABLE `messaging_unread` CHANGE COLUMN `rel_reply_to` `rel_reply_to` BIGINT UNSIGNED NOT NULL;\nALTER TABLE `messaging_unread` DROP PRIMARY KEY, ADD PRIMARY KEY(`rel_channel`, `rel_reply_to`, `rel_user`);\n\n-- Add entries for all (unexisting) unreads (channels & threads)\nINSERT IGNORE INTO messaging_unread\n       (rel_channel, rel_reply_to, rel_user)\nSELECT DISTINCT cm.rel_channel, msg.id, cm.rel_user\n  FROM messaging_channel_member          AS cm\n  	   INNER JOIN messaging_message AS msg ON (cm.rel_channel = msg.rel_channel AND replies > 0)\n WHERE NOT EXISTS (SELECT 1 FROM messaging_unread AS u WHERE u.rel_reply_to = msg.id AND u.rel_user = cm.rel_user)\n   AND msg.rel_user > 0\n\nUNION\n\nSELECT DISTINCT cm.rel_channel, 0, cm.rel_user\n  FROM messaging_channel_member          AS cm\n WHERE NOT EXISTS (SELECT 1 FROM messaging_unread AS u WHERE u.rel_channel = cm.rel_channel AND u.rel_user = cm.rel_user)\n   AND cm.rel_user > 0\n;\n\n\n-- Update counters for channel messages\nINSERT IGNORE INTO messaging_unread\n       (rel_channel, rel_reply_to, rel_user, count, rel_last_message)\nSELECT u.rel_channel, 0, u.rel_user, COUNT(m.id), u.rel_last_message\n  FROM messaging_unread AS u\n       INNER JOIN messaging_message AS m ON (u.rel_channel = m.rel_channel AND m.id > u.rel_last_message)\n WHERE u.rel_reply_to = 0\n   AND m.reply_to = 0\n GROUP BY u.rel_channel, u.rel_user;\n\n-- Update counters for thread messages\n\nINSERT IGNORE INTO messaging_unread\n       (rel_channel, rel_reply_to, rel_user, count, rel_last_message)\nSELECT u.rel_channel, rpl.reply_to, u.rel_user, COUNT(rpl.id), u.rel_last_message\n  FROM messaging_unread AS u\n       INNER JOIN messaging_message AS rpl ON (u.rel_channel = rpl.rel_channel AND rpl.reply_to = u.rel_reply_to AND rpl.id > u.rel_last_message)\n WHERE rpl.replies > 0 AND u.rel_reply_to > 0\n GROUP BY u.rel_channel, rpl.reply_to, u.rel_user;\nPK\x07\x08\xa3(M\xda\xa1\x07\x00\x00\xa1\x07\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0e\x00	\x00migrations.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE IF NOT EXISTS `migrations` (\n `project` varchar(16) NOT NULL COMMENT 'sam, crm, ...',\n `filename` varchar(255) NOT NULL COMMENT 'yyyymmddHHMMSS.sql',\n `statement_index` int(11) NOT NULL COMMENT 'Statement number from SQL file',\n `status` TEXT NOT NULL COMMENT 'ok or full error message',\n PRIMARY KEY (`project`,`filename`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nPK\x07\x08\x0d\xa5T2x\x01\x00\x00x\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00	\x00new.shUT\x05\x00\x01\x80Cm8#!/bin/bash\ntouch $(date +%Y%m%d%H%M%S).up.sqlPK\x07\x08s\xd4N*.\x00\x00\x00.\x00\x00\x00PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xd5\x9c\xef\x89V\x10\x00\x00V\x10\x00\x00\x1a\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x00\x00\x00\x0020180704080000.base.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(E1\xf5\xa4\xd7\x00\x00\x00\xd7\x00\x00\x00$\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\xa7\x10\x00\x0020181009080000.altering_types.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(`\xcbP\xf9t\x04\x00\x00t\x04\x00\x00#\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\xd9\x11\x00\x0020181013080000.channel_views.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(m\xedWA\x94\x00\x00\x00\x94\x00\x00\x00\x1d\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\xa7\x16\x00\x0020181013080000.replies.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(eA\x1eo\x90\x01\x00\x00\x90\x01\x00\x00(\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x8f\x17\x00\x0020181101080000.pins_and_reactions.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xfb\xe8\x9b\x98\xac\x01\x00\x00\xac\x01\x00\x00\x1e\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81~\x19\x00\x0020181107080000.mentions.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(jf1Q+\x02\x00\x00+\x02\x00\x00\x1d\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x7f\x1b\x00\x0020181115080000.unreads.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xdd.y06\x00\x00\x006\x00\x00\x00*\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\xfe\x1d\x00\x0020181124173028.remove_events_tables.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(Ig\xbfOQ\x00\x00\x00Q\x00\x00\x00)\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x95\x1e\x00\x0020181205153145.messages-to-utf8mb4.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(4\xfb\xe3\xf4p\x00\x00\x00p\x00\x00\x00&\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81F\x1f\x00\x0020190122191150.membership-flags.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\x145\xde}Q\x02\x00\x00Q\x02\x00\x00#\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x13 \x00\x0020190206112022.prefix-tables.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\x16\x95.\xf3\xf7\x03\x00\x00\xf7\x03\x00\x00#\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\xbe\"\x00\x0020190326181923.webhook-table.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xf0d&V\x14\x01\x00\x00\x14\x01\x00\x00!\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81\x0f'\x00\x0020190526090000.permissions.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\xa3(M\xda\xa1\x07\x00\x00\xa1\x07\x00\x00\x1d\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81{(\x00\x0020190623080000.unreads.up.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(\x0d\xa5T2x\x01\x00\x00x\x01\x00\x00\x0e\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xa4\x81p0\x00\x00migrations.sqlUT\x05\x00\x01\x80Cm8PK\x01\x02\x14\x03\x14\x00\x08\x00\x00\x00\x00\x00!(s\xd4N*.\x00\x00\x00.\x00\x00\x00\x06\x00	\x00\x00\x00\x00\x00\x00\x00\x00\x00\xed\x81-2\x00\x00new.shUT\x05\x00\x01\x80Cm8PK\x05\x06\x00\x00\x00\x00\x10\x00\x10\x00b\x05\x00\x00\x982\x00\x00\x00\x00"
+var Asset = "PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1a\x00	\x0020180704080000.base.up.sqlUT\x05\x00\x01\x80Cm8-- Keeps all known channels\nCREATE TABLE channels (\n  id               BIGINT UNSIGNED NOT NULL,\n  name             TEXT            NOT NULL, -- display name of the channel\n  topic            TEXT            NOT NULL,\n  meta             JSON            NOT NULL,\n\n  type             ENUM ('private', 'public', 'group') NOT NULL DEFAULT 'public',\n\n  rel_organisation BIGINT UNSIGNED NOT NULL REFERENCES organisation(id),\n  rel_creator      BIGINT UNSIGNED NOT NULL,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n  updated_at       DATETIME            NULL,\n  archived_at      DATETIME            NULL,\n  deleted_at       DATETIME            NULL, -- channel soft delete\n\n  rel_last_message BIGINT UNSIGNED NOT NULL DEFAULT 0,\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\n-- handles channel membership\nCREATE TABLE channel_members (\n  rel_channel      BIGINT UNSIGNED NOT NULL REFERENCES channels(id),\n  rel_user         BIGINT UNSIGNED NOT NULL,\n\n  type             ENUM ('owner', 'member', 'invitee') NOT NULL DEFAULT 'member',\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n  updated_at       DATETIME            NULL,\n\n  PRIMARY KEY (rel_channel, rel_user)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE channel_views (\n  rel_channel      BIGINT UNSIGNED NOT NULL REFERENCES channels(id),\n  rel_user         BIGINT UNSIGNED NOT NULL,\n\n  -- timestamp of last view, should be enough to find out which messaghr\n  viewed_at        DATETIME        NOT NULL DEFAULT NOW(),\n\n  -- new messages count since last view\n  new_since        INT    UNSIGNED NOT NULL DEFAULT 0,\n\n  PRIMARY KEY (rel_user, rel_channel)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE channel_pins (\n  rel_channel      BIGINT UNSIGNED NOT NULL REFERENCES channels(id),\n  rel_message      BIGINT UNSIGNED NOT NULL REFERENCES messages(id),\n  rel_user         BIGINT UNSIGNED NOT NULL,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n\n  PRIMARY KEY (rel_channel, rel_message)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE messages (\n  id               BIGINT UNSIGNED NOT NULL,\n  type             TEXT,\n  message          TEXT            NOT NULL,\n  meta             JSON,\n  rel_user         BIGINT UNSIGNED NOT NULL,\n  rel_channel      BIGINT UNSIGNED NOT NULL REFERENCES channels(id),\n  reply_to         BIGINT UNSIGNED     NULL REFERENCES messages(id),\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n  updated_at       DATETIME            NULL,\n  deleted_at       DATETIME            NULL,\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE reactions (\n  id               BIGINT UNSIGNED NOT NULL,\n  rel_user         BIGINT UNSIGNED NOT NULL,\n  rel_message      BIGINT UNSIGNED NOT NULL REFERENCES messages(id),\n  rel_channel      BIGINT UNSIGNED NOT NULL REFERENCES channels(id),\n  reaction         TEXT            NOT NULL,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE attachments (\n  id               BIGINT UNSIGNED NOT NULL,\n  rel_user         BIGINT UNSIGNED NOT NULL,\n\n  url              VARCHAR(512),\n  preview_url      VARCHAR(512),\n\n  size             INT    UNSIGNED,\n  mimetype         VARCHAR(255),\n  name             TEXT,\n\n  meta             JSON,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n  updated_at       DATETIME            NULL,\n  deleted_at       DATETIME            NULL,\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE message_attachment (\n  rel_message      BIGINT UNSIGNED NOT NULL REFERENCES messages(id),\n  rel_attachment   BIGINT UNSIGNED NOT NULL REFERENCES attachment(id),\n\n  PRIMARY KEY (rel_message)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE event_queue (\n  id               BIGINT UNSIGNED NOT NULL,\n  origin           BIGINT UNSIGNED NOT NULL,\n  subscriber       TEXT,\n  payload          JSON,\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE TABLE event_queue_synced (\n  origin           BIGINT UNSIGNED NOT NULL,\n  rel_last         BIGINT UNSIGNED NOT NULL,\n\n  PRIMARY KEY (origin)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\nPK\x07\x08\xd5\x9c\xef\x89V\x10\x00\x00V\x10\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00$\x00	\x0020181009080000.altering_types.up.sqlUT\x05\x00\x01\x80Cm8update channels set type = 'group' where type = 'direct';\nalter table channels CHANGE type type  enum('private', 'public', 'group');\nalter table channel_members CHANGE type type  enum('owner', 'member', 'invitee');\nPK\x07\x08E1\xf5\xa4\xd7\x00\x00\x00\xd7\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#\x00	\x0020181013080000.channel_views.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE channel_views DROP viewed_at;\nALTER TABLE channel_views ADD rel_last_message_id BIGINT UNSIGNED;\nALTER TABLE channel_views CHANGE new_since new_messages_count INT UNSIGNED;\n\n-- Table structure after these changes:\n-- +---------------------+---------------------+------+-----+---------+-------+\n-- | Field               | Type                | Null | Key | Default | Extra |\n-- +---------------------+---------------------+------+-----+---------+-------+\n-- | rel_channel         | bigint(20) unsigned | NO   | PRI | NULL    |       |\n-- | rel_user            | bigint(20) unsigned | NO   | PRI | NULL    |       |\n-- | rel_last_message_id | bigint(20) unsigned | YES  |     | NULL    |       |\n-- | new_messages_count  | int(10) unsigned    | NO   |     | 0       |       |\n-- +---------------------+---------------------+------+-----+---------+-------+\n\n-- Prefill with data\nINSERT INTO channel_views (rel_channel, rel_user, rel_last_message_id)\n  SELECT cm.rel_channel, cm.rel_user, max(m.ID)\n    FROM channel_members AS cm INNER JOIN messages AS m ON (m.rel_channel = cm.rel_channel)\n  GROUP BY cm.rel_channel, cm.rel_user;\n\nPK\x07\x08`\xcbP\xf9t\x04\x00\x00t\x04\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1d\x00	\x0020181013080000.replies.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE messages CHANGE reply_to reply_to BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE messages ADD replies INT UNSIGNED NOT NULL DEFAULT 0;\nPK\x07\x08m\xedWA\x94\x00\x00\x00\x94\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00(\x00	\x0020181101080000.pins_and_reactions.up.sqlUT\x05\x00\x01\x80Cm8DROP TABLE channel_pins;\nDROP TABLE reactions;\n\nCREATE TABLE message_flags (\n  id               BIGINT UNSIGNED NOT NULL,\n  rel_channel      BIGINT UNSIGNED NOT NULL,\n  rel_message      BIGINT UNSIGNED NOT NULL,\n  rel_user         BIGINT UNSIGNED NOT NULL,\n  flag             TEXT,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\nPK\x07\x08eA\x1eo\x90\x01\x00\x00\x90\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1e\x00	\x0020181107080000.mentions.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE mentions (\n  id               BIGINT UNSIGNED NOT NULL,\n  rel_channel      BIGINT UNSIGNED NOT NULL,\n  rel_message      BIGINT UNSIGNED NOT NULL,\n  rel_user         BIGINT UNSIGNED NOT NULL,\n  rel_mentioned_by BIGINT UNSIGNED NOT NULL,\n\n  created_at       DATETIME        NOT NULL DEFAULT NOW(),\n\n  PRIMARY KEY (id)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nCREATE INDEX lookup_mentions ON mentions (rel_mentioned_by)\nPK\x07\x08\xfb\xe8\x9b\x98\xac\x01\x00\x00\xac\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1d\x00	\x0020181115080000.unreads.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE channel_views RENAME TO unreads;\n\nALTER TABLE unreads ADD     rel_reply_to                        BIGINT UNSIGNED NOT NULL AFTER rel_channel;\nALTER TABLE unreads CHANGE rel_channel         rel_channel      BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE unreads CHANGE rel_user            rel_user         BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE unreads CHANGE rel_last_message_id rel_last_message BIGINT UNSIGNED NOT NULL DEFAULT 0;\nALTER TABLE unreads CHANGE new_messages_count  count            INT    UNSIGNED NOT NULL DEFAULT 0;\n\nPK\x07\x08jf1Q+\x02\x00\x00+\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00*\x00	\x0020181124173028.remove_events_tables.up.sqlUT\x05\x00\x01\x80Cm8DROP TABLE event_queue;\nDROP TABLE event_queue_synced;PK\x07\x08\xdd.y06\x00\x00\x006\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00)\x00	\x0020181205153145.messages-to-utf8mb4.up.sqlUT\x05\x00\x01\x80Cm8alter table messages convert to character set utf8mb4 collate utf8mb4_unicode_ci;PK\x07\x08Ig\xbfOQ\x00\x00\x00Q\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00&\x00	\x0020190122191150.membership-flags.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE channel_members ADD flag ENUM ('pinned', 'hidden', 'ignored', '') NOT NULL DEFAULT '' AFTER `type`;\nPK\x07\x084\xfb\xe3\xf4p\x00\x00\x00p\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#\x00	\x0020190206112022.prefix-tables.up.sqlUT\x05\x00\x01\x80Cm8-- misc tables\n\nALTER TABLE attachments            RENAME TO messaging_attachment;\nALTER TABLE mentions               RENAME TO messaging_mention;\nALTER TABLE unreads                RENAME TO messaging_unread;\n\n-- channel tables\n\nALTER TABLE channels               RENAME TO messaging_channel;\nALTER TABLE channel_members        RENAME TO messaging_channel_member;\n\n-- message tables\n\nALTER TABLE messages               RENAME TO messaging_message;\nALTER TABLE message_attachment     RENAME TO messaging_message_attachment;\nALTER TABLE message_flags          RENAME TO messaging_message_flag;\nPK\x07\x08\x145\xde}Q\x02\x00\x00Q\x02\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00#\x00	\x0020190326181923.webhook-table.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE `messaging_webhook` (\n `id` bigint(20) unsigned NOT NULL,\n `kind` varchar(8) NOT NULL COMMENT 'Kind: incoming, outgoing',\n `token` varchar(255) NOT NULL COMMENT 'Authentication token',\n `rel_owner` bigint(20) unsigned NOT NULL COMMENT 'Webhook owner User ID',\n `rel_user` bigint(20) unsigned NOT NULL COMMENT 'Webhook message User ID',\n `rel_channel` bigint(20) unsigned NOT NULL COMMENT 'Channel ID',\n `outgoing_trigger` varchar(32) NOT NULL COMMENT 'Outgoing command trigger',\n `outgoing_url` varchar(255) NOT NULL COMMENT 'URL for POST request',\n `created_at` datetime NOT NULL,\n `updated_at` datetime     NULL,\n `deleted_at` datetime     NULL,\n PRIMARY KEY (`id`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\n-- get webhook by command trigger\nALTER TABLE `messaging_webhook` ADD UNIQUE(`outgoing_trigger`);\n\n-- list webhooks by owner (list your own webhooks)\nALTER TABLE `messaging_webhook` ADD INDEX(`rel_owner`);\n\n-- list webhooks on a channel\nALTER TABLE `messaging_webhook` ADD INDEX(`rel_channel`);\nPK\x07\x08\x16\x95.\xf3\xf7\x03\x00\x00\xf7\x03\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00!\x00	\x0020190526090000.permissions.up.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE IF NOT EXISTS messaging_permission_rules (\n  rel_role   BIGINT UNSIGNED NOT NULL,\n  resource   VARCHAR(128)    NOT NULL,\n  operation  VARCHAR(128)    NOT NULL,\n  access     TINYINT(1)      NOT NULL,\n\n  PRIMARY KEY (rel_role, resource, operation)\n) ENGINE=InnoDB;\nPK\x07\x08\xf0d&V\x14\x01\x00\x00\x14\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1d\x00	\x0020190623080000.unreads.up.sqlUT\x05\x00\x01\x80Cm8UPDATE `messaging_unread` SET rel_reply_to = 0 WHERE rel_reply_to IS NULL;\nALTER TABLE `messaging_unread` CHANGE COLUMN `rel_reply_to` `rel_reply_to` BIGINT UNSIGNED NOT NULL;\nALTER TABLE `messaging_unread` DROP PRIMARY KEY, ADD PRIMARY KEY(`rel_channel`, `rel_reply_to`, `rel_user`);\n\n-- Add entries for all (unexisting) unreads (channels & threads)\nINSERT IGNORE INTO messaging_unread\n       (rel_channel, rel_reply_to, rel_user)\nSELECT DISTINCT cm.rel_channel, msg.id, cm.rel_user\n  FROM messaging_channel_member          AS cm\n  	   INNER JOIN messaging_message AS msg ON (cm.rel_channel = msg.rel_channel AND replies > 0)\n WHERE NOT EXISTS (SELECT 1 FROM messaging_unread AS u WHERE u.rel_reply_to = msg.id AND u.rel_user = cm.rel_user)\n   AND msg.rel_user > 0\n\nUNION\n\nSELECT DISTINCT cm.rel_channel, 0, cm.rel_user\n  FROM messaging_channel_member          AS cm\n WHERE NOT EXISTS (SELECT 1 FROM messaging_unread AS u WHERE u.rel_channel = cm.rel_channel AND u.rel_user = cm.rel_user)\n   AND cm.rel_user > 0\n;\n\n\n-- Update counters for channel messages\nINSERT IGNORE INTO messaging_unread\n       (rel_channel, rel_reply_to, rel_user, count, rel_last_message)\nSELECT u.rel_channel, 0, u.rel_user, COUNT(m.id), u.rel_last_message\n  FROM messaging_unread AS u\n       INNER JOIN messaging_message AS m ON (u.rel_channel = m.rel_channel AND m.id > u.rel_last_message)\n WHERE u.rel_reply_to = 0\n   AND m.reply_to = 0\n GROUP BY u.rel_channel, u.rel_user;\n\n-- Update counters for thread messages\n\nINSERT IGNORE INTO messaging_unread\n       (rel_channel, rel_reply_to, rel_user, count, rel_last_message)\nSELECT u.rel_channel, rpl.reply_to, u.rel_user, COUNT(rpl.id), u.rel_last_message\n  FROM messaging_unread AS u\n       INNER JOIN messaging_message AS rpl ON (u.rel_channel = rpl.rel_channel AND rpl.reply_to = u.rel_reply_to AND rpl.id > u.rel_last_message)\n WHERE rpl.replies > 0 AND u.rel_reply_to > 0\n GROUP BY u.rel_channel, rpl.reply_to, u.rel_user;\nPK\x07\x08\xa3(M\xda\xa1\x07\x00\x00\xa1\x07\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00/\x00	\x0020190808000000.channel_membership_policy.up.sqlUT\x05\x00\x01\x80Cm8ALTER TABLE `messaging_channel` ADD `membership_policy` ENUM ('featured', 'forced', '') NOT NULL DEFAULT '' AFTER `type`;\nPK\x07\x08E\xa4\xe3\xf0z\x00\x00\x00z\x00\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0e\x00	\x00migrations.sqlUT\x05\x00\x01\x80Cm8CREATE TABLE IF NOT EXISTS `migrations` (\n `project` varchar(16) NOT NULL COMMENT 'sam, crm, ...',\n `filename` varchar(255) NOT NULL COMMENT 'yyyymmddHHMMSS.sql',\n `statement_index` int(11) NOT NULL COMMENT 'Statement number from SQL file',\n `status` TEXT NOT NULL COMMENT 'ok or full error message',\n PRIMARY KEY (`project`,`filename`)\n) ENGINE=InnoDB DEFAULT CHARSET=utf8;\n\nPK\x07\x08\x0d\xa5T2x\x01\x00\x00x\x01\x00\x00PK\x03\x04\x14\x00\x08\x00\x00\x00\x00\x00!(\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06\x00	\x00new.shUT\x05\x00\x01\x80Cm8#!/bin/bash\ntouch $(date 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diff --git a/messaging/db/schema/mysql/20190808000000.channel_membership_policy.up.sql b/messaging/db/schema/mysql/20190808000000.channel_membership_policy.up.sql
new file mode 100644
index 000000000..fb2356fea
--- /dev/null
+++ b/messaging/db/schema/mysql/20190808000000.channel_membership_policy.up.sql
@@ -0,0 +1 @@
+ALTER TABLE `messaging_channel` ADD `membership_policy` ENUM ('featured', 'forced', '') NOT NULL DEFAULT '' AFTER `type`;
diff --git a/messaging/internal/repository/channel.go b/messaging/internal/repository/channel.go
index 30003da5a..ac69655c3 100644
--- a/messaging/internal/repository/channel.go
+++ b/messaging/internal/repository/channel.go
@@ -40,6 +40,7 @@ const (
 	sqlChannelColumns = " id," +
 		"name, " +
 		"meta, " +
+		"membership_policy, " +
 		"created_at, " +
 		"updated_at, " +
 		"archived_at, " +
@@ -159,7 +160,7 @@ func (r *channel) Update(mod *types.Channel) (*types.Channel, error) {
 		mod.Type = types.ChannelTypePublic
 	}
 
-	whitelist := []string{"id", "name", "type", "topic", "meta", "updated_at"}
+	whitelist := []string{"id", "name", "type", "membership_policy", "topic", "meta", "updated_at"}
 
 	return mod, r.db().UpdatePartial("messaging_channel", mod, whitelist, "id")
 }
diff --git a/messaging/internal/service/access_control.go b/messaging/internal/service/access_control.go
index 8846488a2..2d976751e 100644
--- a/messaging/internal/service/access_control.go
+++ b/messaging/internal/service/access_control.go
@@ -115,6 +115,11 @@ func (svc accessControl) CanManageChannelMembers(ctx context.Context, ch *types.
 	return svc.can(ctx, ch, "members.manage", svc.isChannelOwnerFallback(ctx, ch))
 }
 
+func (svc accessControl) CanChangeChannelMembershipPolicy(ctx context.Context, ch *types.Channel) bool {
+	// @todo introduce dedicated channel op. for this.
+	return svc.can(ctx, types.MessagingPermissionResource, "grant")
+}
+
 func (svc accessControl) CanManageChannelAttachments(ctx context.Context, ch *types.Channel) bool {
 	return svc.can(ctx, ch, "attachments.manage")
 }
diff --git a/messaging/internal/service/channel.go b/messaging/internal/service/channel.go
index 3c1548c60..d084b56ea 100644
--- a/messaging/internal/service/channel.go
+++ b/messaging/internal/service/channel.go
@@ -42,6 +42,7 @@ type (
 		CanArchiveChannel(context.Context, *types.Channel) bool
 		CanUnarchiveChannel(context.Context, *types.Channel) bool
 		CanManageChannelMembers(context.Context, *types.Channel) bool
+		CanChangeChannelMembershipPolicy(context.Context, *types.Channel) bool
 		CanSendMessage(context.Context, *types.Channel) bool
 		CanUpdateOwnMessages(context.Context, *types.Channel) bool
 		CanUpdateMessages(context.Context, *types.Channel) bool
@@ -268,13 +269,23 @@ func (svc *channel) Create(in *types.Channel) (out *types.Channel, err error) {
 			return ErrNoPermissions.withStack()
 		}
 
+		if !in.MembershipPolicy.IsValid() {
+			// Reset invalid membership flag to default
+			in.MembershipPolicy = types.ChannelMembershipPolicyDefault
+		}
+
+		if in.MembershipPolicy != types.ChannelMembershipPolicyDefault && !svc.ac.CanChangeChannelMembershipPolicy(svc.ctx, in) {
+			return ErrNoPermissions.withStack()
+		}
+
 		// This is a fresh channel, just copy values
 		out = &types.Channel{
-			Name:           in.Name,
-			Topic:          in.Topic,
-			Type:           in.Type,
-			OrganisationID: organisationID,
-			CreatorID:      chCreatorID,
+			Name:             in.Name,
+			Topic:            in.Topic,
+			Type:             in.Type,
+			MembershipPolicy: in.MembershipPolicy,
+			OrganisationID:   organisationID,
+			CreatorID:        chCreatorID,
 		}
 
 		// Save the channel
@@ -427,6 +438,13 @@ func (svc *channel) Update(in *types.Channel) (ch *types.Channel, err error) {
 			changed = true
 		}
 
+		if ch.MembershipPolicy != in.MembershipPolicy && !svc.ac.CanChangeChannelMembershipPolicy(svc.ctx, ch) {
+			return ErrNoPermissions.withStack()
+		} else {
+			ch.MembershipPolicy = in.MembershipPolicy
+			changed = true
+		}
+
 		if !changed {
 			return nil
 		}
@@ -891,6 +909,8 @@ func (svc *channel) setPermissionFlags(ch *types.Channel) (err error) {
 	ch.CanUpdateMessages = svc.ac.CanUpdateMessages(svc.ctx, ch)
 	ch.CanUpdateOwnMessages = svc.ac.CanUpdateOwnMessages(svc.ctx, ch)
 	ch.CanChangeMembers = svc.ac.CanManageChannelMembers(svc.ctx, ch)
+	// @todo migrate to proper change-membership-policy action check
+	ch.CanChangeMembershipPolicy = svc.ac.CanChangeChannelMembershipPolicy(svc.ctx, ch)
 
 	ch.CanUpdate = svc.ac.CanUpdateChannel(svc.ctx, ch)
 	ch.CanArchive = svc.ac.CanArchiveChannel(svc.ctx, ch)
diff --git a/messaging/rest/channel.go b/messaging/rest/channel.go
index 46acb3971..9f21d78ac 100644
--- a/messaging/rest/channel.go
+++ b/messaging/rest/channel.go
@@ -41,6 +41,8 @@ func (ctrl *Channel) Create(ctx context.Context, r *request.ChannelCreate) (inte
 		// string input for members (for now)
 		// https://github.com/golang/go/issues/15624
 		Members: payload.ParseUInt64s(r.Members),
+
+		MembershipPolicy: r.MembershipPolicy,
 	}
 
 	return ctrl.wrap(ctrl.svc.ch.With(ctx).Create(channel))
@@ -52,6 +54,8 @@ func (ctrl *Channel) Update(ctx context.Context, r *request.ChannelUpdate) (inte
 		Name:  r.Name,
 		Topic: r.Topic,
 		Type:  types.ChannelType(r.Type),
+
+		MembershipPolicy: r.MembershipPolicy,
 	}
 
 	return ctrl.wrap(ctrl.svc.ch.With(ctx).Update(channel))
diff --git a/messaging/rest/request/channel.go b/messaging/rest/request/channel.go
index f52e34198..98167e385 100644
--- a/messaging/rest/request/channel.go
+++ b/messaging/rest/request/channel.go
@@ -25,6 +25,8 @@ import (
 
 	"github.com/go-chi/chi"
 	"github.com/pkg/errors"
+
+	"github.com/cortezaproject/corteza-server/messaging/types"
 )
 
 var _ = chi.URLParam
@@ -85,10 +87,11 @@ var _ RequestFiller = NewChannelList()
 
 // Channel create request parameters
 type ChannelCreate struct {
-	Name    string
-	Topic   string
-	Type    string
-	Members []string
+	Name             string
+	Topic            string
+	Type             string
+	MembershipPolicy types.ChannelMembershipPolicy
+	Members          []string
 }
 
 func NewChannelCreate() *ChannelCreate {
@@ -101,6 +104,7 @@ func (r ChannelCreate) Auditable() map[string]interface{} {
 	out["name"] = r.Name
 	out["topic"] = r.Topic
 	out["type"] = r.Type
+	out["membershipPolicy"] = r.MembershipPolicy
 	out["members"] = r.Members
 
 	return out
@@ -142,6 +146,9 @@ func (r *ChannelCreate) Fill(req *http.Request) (err error) {
 	if val, ok := post["type"]; ok {
 		r.Type = val
 	}
+	if val, ok := post["membershipPolicy"]; ok {
+		r.MembershipPolicy = types.ChannelMembershipPolicy(val)
+	}
 
 	if val, ok := req.Form["members"]; ok {
 		r.Members = parseStrings(val)
@@ -154,11 +161,12 @@ var _ RequestFiller = NewChannelCreate()
 
 // Channel update request parameters
 type ChannelUpdate struct {
-	ChannelID      uint64 `json:",string"`
-	Name           string
-	Topic          string
-	Type           string
-	OrganisationID uint64 `json:",string"`
+	ChannelID        uint64 `json:",string"`
+	Name             string
+	Topic            string
+	MembershipPolicy types.ChannelMembershipPolicy
+	Type             string
+	OrganisationID   uint64 `json:",string"`
 }
 
 func NewChannelUpdate() *ChannelUpdate {
@@ -171,6 +179,7 @@ func (r ChannelUpdate) Auditable() map[string]interface{} {
 	out["channelID"] = r.ChannelID
 	out["name"] = r.Name
 	out["topic"] = r.Topic
+	out["membershipPolicy"] = r.MembershipPolicy
 	out["type"] = r.Type
 	out["organisationID"] = r.OrganisationID
 
@@ -211,6 +220,9 @@ func (r *ChannelUpdate) Fill(req *http.Request) (err error) {
 	if val, ok := post["topic"]; ok {
 		r.Topic = val
 	}
+	if val, ok := post["membershipPolicy"]; ok {
+		r.MembershipPolicy = types.ChannelMembershipPolicy(val)
+	}
 	if val, ok := post["type"]; ok {
 		r.Type = val
 	}
diff --git a/messaging/types/channel.go b/messaging/types/channel.go
index 1f8a88951..8dd28a0d5 100644
--- a/messaging/types/channel.go
+++ b/messaging/types/channel.go
@@ -15,6 +15,8 @@ type (
 		Type  ChannelType    `json:"type" db:"type"`
 		Meta  types.JSONText `json:"-" db:"meta"`
 
+		MembershipPolicy ChannelMembershipPolicy `json:"membershipPolicy" db:"membership_policy""`
+
 		CreatorID      uint64 `json:"creatorId" db:"rel_creator"`
 		OrganisationID uint64 `json:"organisationId" db:"rel_organisation"`
 
@@ -26,20 +28,21 @@ type (
 
 		LastMessageID uint64 `json:",omitempty" db:"rel_last_message"`
 
-		CanJoin              bool `json:"-" db:"-"`
-		CanPart              bool `json:"-" db:"-"`
-		CanObserve           bool `json:"-" db:"-"`
-		CanSendMessages      bool `json:"-" db:"-"`
-		CanDeleteMessages    bool `json:"-" db:"-"`
-		CanDeleteOwnMessages bool `json:"-" db:"-"`
-		CanUpdateMessages    bool `json:"-" db:"-"`
-		CanUpdateOwnMessages bool `json:"-" db:"-"`
-		CanChangeMembers     bool `json:"-" db:"-"`
-		CanUpdate            bool `json:"-" db:"-"`
-		CanArchive           bool `json:"-" db:"-"`
-		CanUnarchive         bool `json:"-" db:"-"`
-		CanDelete            bool `json:"-" db:"-"`
-		CanUndelete          bool `json:"-" db:"-"`
+		CanJoin                   bool `json:"-" db:"-"`
+		CanPart                   bool `json:"-" db:"-"`
+		CanObserve                bool `json:"-" db:"-"`
+		CanSendMessages           bool `json:"-" db:"-"`
+		CanDeleteMessages         bool `json:"-" db:"-"`
+		CanDeleteOwnMessages      bool `json:"-" db:"-"`
+		CanUpdateMessages         bool `json:"-" db:"-"`
+		CanUpdateOwnMessages      bool `json:"-" db:"-"`
+		CanChangeMembers          bool `json:"-" db:"-"`
+		CanChangeMembershipPolicy bool `json:"-" db:"-"`
+		CanUpdate                 bool `json:"-" db:"-"`
+		CanArchive                bool `json:"-" db:"-"`
+		CanUnarchive              bool `json:"-" db:"-"`
+		CanDelete                 bool `json:"-" db:"-"`
+		CanUndelete               bool `json:"-" db:"-"`
 
 		Member  *ChannelMember `json:"-" db:"-"`
 		Members []uint64       `json:"-" db:"-"`
@@ -56,7 +59,8 @@ type (
 		IncludeDeleted bool
 	}
 
-	ChannelType string
+	ChannelMembershipPolicy string
+	ChannelType             string
 )
 
 // Resource returns a system resource ID for this type
@@ -72,6 +76,10 @@ const (
 	ChannelTypePublic  ChannelType = "public"
 	ChannelTypePrivate ChannelType = "private"
 	ChannelTypeGroup   ChannelType = "group"
+
+	ChannelMembershipPolicyFeatured ChannelMembershipPolicy = "featured"
+	ChannelMembershipPolicyForced   ChannelMembershipPolicy = "forced"
+	ChannelMembershipPolicyDefault  ChannelMembershipPolicy = ""
 )
 
 func (mtype ChannelType) String() string {
@@ -88,3 +96,18 @@ func (mtype ChannelType) IsValid() bool {
 
 	return false
 }
+
+func (cm ChannelMembershipPolicy) String() string {
+	return string(cm)
+}
+
+func (cm ChannelMembershipPolicy) IsValid() bool {
+	switch cm {
+	case ChannelMembershipPolicyFeatured,
+		ChannelMembershipPolicyForced,
+		ChannelMembershipPolicyDefault:
+		return true
+	}
+
+	return false
+}