[FIX] Direct Message names not visible on Admin panel (#15114)

app/lib/lib/roomTypes/direct.js

@@ -101,10 +101,6 @@ export class DirectMessageRoomType extends RoomTypeConfig {
 		return Session.get(`user_${ subscription.name }_status_text`);
 	}
 
-	getDisplayName(room) {
-		return room.usernames.join(' x ');
-	}
-
 	allowRoomSettingChange(room, setting) {
 		switch (setting) {
 			case RoomSettingsEnum.NAME:

app/ui-admin/client/rooms/adminRooms.js

@@ -12,18 +12,19 @@ import { SideNav, RocketChatTabBar, TabBar } from '../../../ui-utils';
 import { t, roomTypes } from '../../../utils';
 import { hasAllPermission } from '../../../authorization';
 import { ChannelSettings } from '../../../channel-settings';
+import { getAvatarURL } from '../../../utils/lib/getAvatarURL';
 
 export const AdminChatRoom = new Mongo.Collection('rocketchat_room');
 
 Template.adminRooms.helpers({
 	url() {
-		return roomTypes.getConfig(this.t).getAvatarPath(this);
+		return this.t === 'd' ? getAvatarURL({ username: `@${ this.usernames[0] }` }) : roomTypes.getConfig(this.t).getAvatarPath(this);
 	},
 	getIcon() {
 		return roomTypes.getIcon(this);
 	},
 	roomName() {
-		return roomTypes.getRoomName(this.t, this);
+		return this.t === 'd' ? this.usernames.join(' x ') : roomTypes.getRoomName(this.t, this);
 	},
 	searchText() {
 		const instance = Template.instance();
@@ -52,9 +53,6 @@ Template.adminRooms.helpers({
 		const rooms = Template.instance().rooms();
 		return rooms && rooms.count();
 	},
-	name() {
-		return roomTypes.roomTypes[this.t].getDisplayName(this);
-	},
 	type() {
 		return TAPi18n.__(roomTypes.roomTypes[this.t].label);
 	},

app/utils/lib/RoomTypeConfig.js

@@ -150,15 +150,6 @@ export class RoomTypeConfig {
 		return this._route;
 	}
 
-	/**
-	 * Gets the room's name to display in the UI.
-	 *
-	 * @param {object} room
-	 */
-	getDisplayName(room) {
-		return room.name;
-	}
-
 	allowRoomSettingChange(/* room, setting */) {
 		return true;
 	}