Merge pull request #406 from mattermost/mm-1281

MM-1281 Track channel creator in DB and show in channel intro message

api/channel.go

@@ -58,6 +58,8 @@ func createChannel(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	channel.CreatorId = c.Session.UserId
+
 	if sc, err := CreateChannel(c, channel, true); err != nil {
 		c.Err = err
 		return

model/channel.go

@@ -28,6 +28,7 @@ type Channel struct {
 	LastPostAt    int64  `json:"last_post_at"`
 	TotalMsgCount int64  `json:"total_msg_count"`
 	ExtraUpdateAt int64  `json:"extra_update_at"`
+	CreatorId     string `json:"creator_id"`
 }
 
 func (o *Channel) ToJson() string {
@@ -92,6 +93,10 @@ func (o *Channel) IsValid() *AppError {
 		return NewAppError("Channel.IsValid", "Invalid description", "id="+o.Id)
 	}
 
+	if len(o.CreatorId) > 26 {
+		return NewAppError("Channel.IsValid", "Invalid creator id", "")
+	}
+
 	return nil
 }
 

store/sql_channel_store.go

@@ -24,6 +24,7 @@ func NewSqlChannelStore(sqlStore *SqlStore) ChannelStore {
 		table.ColMap("Name").SetMaxSize(64)
 		table.SetUniqueTogether("Name", "TeamId")
 		table.ColMap("Description").SetMaxSize(1024)
+		table.ColMap("CreatorId").SetMaxSize(26)
 
 		tablem := db.AddTableWithName(model.ChannelMember{}, "ChannelMembers").SetKeys(false, "ChannelId", "UserId")
 		tablem.ColMap("ChannelId").SetMaxSize(26)
@@ -37,6 +38,7 @@ func NewSqlChannelStore(sqlStore *SqlStore) ChannelStore {
 
 func (s SqlChannelStore) UpgradeSchemaIfNeeded() {
 	s.CreateColumnIfNotExists("Channels", "ExtraUpdateAt", "TotalMsgCount", "bigint(20)", "0")
+	s.CreateColumnIfNotExists("Channels", "CreatorId", "ExtraUpdateAt", "varchar(26)", "")
 }
 
 func (s SqlChannelStore) CreateIndexesIfNotExists() {

web/react/components/post_list.jsx

@@ -392,15 +392,24 @@ module.exports = React.createClass({
                 }
             } else if (channel.type === 'P' || channel.type === 'O') {
                 var uiName = channel.display_name;
-                var members = ChannelStore.getCurrentExtraInfo().members;
                 var creatorName = '';
 
+                if (channel.creator_id.length > 0) {
+                    var creator = UserStore.getProfile(channel.creator_id);
+                    if (creator) {
+                        creatorName = creator.username;
+                    }
+                }
+
+                if (creatorName === '') {
+                    var members = ChannelStore.getCurrentExtraInfo().members;
                     for (var i = 0; i < members.length; i++) {
                         if (members[i].roles.indexOf('admin') > -1) {
                             creatorName = members[i].username;
                             break;
                         }
                     }
+                }
 
                 if (ChannelStore.isDefault(channel)) {
                     moreMessages = (