Fix actionlog's meta type enc/dec

pkg/actionlog/types.go

@@ -1,8 +1,12 @@
 package actionlog
 
 import (
+	"database/sql/driver"
+	"encoding/json"
 	"strconv"
 	"time"
+
+	"github.com/pkg/errors"
 )
 
 type (
@@ -227,3 +231,22 @@ func NewSeverity(s string) Severity {
 
 	return Debug
 }
+
+func (m *Meta) Scan(value interface{}) error {
+	//lint:ignore S1034 This typecast is intentional, we need to get []byte out of a []uint8
+	switch value.(type) {
+	case nil:
+		*m = Meta{}
+	case []uint8:
+		aux := value.([]byte)
+		if err := json.Unmarshal(aux, m); err != nil {
+			return errors.Wrapf(err, "cannot scan '%v' into Meta", string(aux))
+		}
+	}
+
+	return nil
+}
+
+func (m Meta) Value() (driver.Value, error) {
+	return json.Marshal(m)
+}