Add API Endpoint for deleted Channels (#5889)

store/sql_channel_store.go

@@ -812,6 +812,31 @@ func (s SqlChannelStore) GetDeletedByName(teamId string, name string) StoreChann
 	return storeChannel
 }
 
+func (s SqlChannelStore) GetDeleted(teamId string, offset int, limit int) StoreChannel {
+	storeChannel := make(StoreChannel, 1)
+
+	go func() {
+		result := StoreResult{}
+
+		channels := &model.ChannelList{}
+
+		if _, err := s.GetReplica().Select(channels, "SELECT * FROM Channels WHERE (TeamId = :TeamId OR TeamId = '') AND DeleteAt != 0 ORDER BY DisplayName LIMIT :Limit OFFSET :Offset", map[string]interface{}{"TeamId": teamId, "Limit": limit, "Offset": offset}); err != nil {
+			if err == sql.ErrNoRows {
+				result.Err = model.NewLocAppError("SqlChannelStore.GetDeleted", "store.sql_channel.get_deleted.missing.app_error", nil, "teamId="+teamId+", "+err.Error())
+			} else {
+				result.Err = model.NewLocAppError("SqlChannelStore.GetDeleted", "store.sql_channel.get_deleted.existing.app_error", nil, "teamId="+teamId+", "+err.Error())
+			}
+		} else {
+			result.Data = channels
+		}
+
+		storeChannel <- result
+		close(storeChannel)
+	}()
+
+	return storeChannel
+}
+
 func (s SqlChannelStore) SaveMember(member *model.ChannelMember) StoreChannel {
 	storeChannel := make(StoreChannel, 1)