Enha: not null fields in db

models/main.go

@@ -139,15 +139,12 @@ type Room struct {
 	RedCounter     uint8     `db:"red_counter"`
 	RedTurn        bool      `db:"red_turn"`
 	MimeDone       bool      `db:"mime_done"`
-	IsPublic       bool      `db:"is_public"`
 	IsRunning      bool      `json:"is_running" db:"is_running"`
-	Language       string    `json:"language" example:"en" form:"language" db:"language"`
-	RoundTime      uint32    `json:"round_time" db:"round_time"`
 	IsOver         bool      `db:"is_over"`
 	TeamWon        UserTeam  `db:"team_won"`
 	RoomPass       string    `json:"room_pass" db:"room_pass"`
+	RoomLink       string    `db:"room_link"`
 	// fields not in db
-	RoomLink      string               `db:"-"`
 	ActionHistory []Action             `db:"-"`
 	RedTeam       Team                 `db:"-"`
 	BlueTeam      Team                 `db:"-"`
@@ -384,6 +381,7 @@ type WordCard struct {
 	Mark     []CardMark `json:"marks"`
 }
 
+// table: settings
 type GameSettings struct {
 	Language        string `json:"language" example:"en" form:"language" db:"language"`
 	RoomPass        string `json:"room_pass" db:"room_pass"`