changed chats to rooms

dbmodels.go

@@ -198,16 +198,25 @@ var (
 		PartKey: []string{"user_id"},
 	})
 
-	DbMChats = table.New(table.Metadata{
-		Name: "chats",
+	DbMRooms = table.New(table.Metadata{
+		Name: "rooms",
 		Columns: []string{
-			"user_first_id",
-			"user_second_id",
+			"id",
 			"sync_count",
-			"last_messages",
-			"blocked_state",
+			"last_changes",
 			"created_at",
 		},
-		PartKey: []string{"user_first_id", "user_second_id"},
+		PartKey: []string{"id"},
+	})
+
+	DbMRoomUsers = table.New(table.Metadata{
+		Name: "room_users",
+		Columns: []string{
+			"room_id",
+			"user_id",
+			"role",
+			"joined_at",
+		},
+		PartKey: []string{"room_id"},
 	})
 )