Fix db models to use text instead of varchar; remove unused columns & fix index names

db.go

@@ -29,19 +29,19 @@ func InitDb() error {
 
 	db.AutoMigrate(&DbAccountConfig{})
 
-	db.AutoMigrate(&DbKv{})
+	db.AutoMigrate(&DbJoinedRoom{})
+	db.Model(&DbJoinedRoom{}).AddIndex("idx_joined_room_user_protocol_account", "mx_user_id", "protocol", "account_name")
 
 	db.AutoMigrate(&DbUserMap{})
-	db.Model(&DbUserMap{}).AddIndex("idx_protocol_user", "protocol", "user_id")
+	db.Model(&DbUserMap{}).AddIndex("idx_user_map_protocol_user", "protocol", "user_id")
 
 	db.AutoMigrate(&DbRoomMap{})
-	db.Model(&DbRoomMap{}).AddIndex("idx_protocol_room", "protocol", "room_id")
+	db.Model(&DbRoomMap{}).AddIndex("idx_room_map_protocol_room", "protocol", "room_id")
 
 	db.AutoMigrate(&DbPmRoomMap{})
-	db.Model(&DbPmRoomMap{}).AddIndex("idx_protocol_user_account_user", "protocol", "user_id", "mx_user_id", "account_name")
+	db.Model(&DbPmRoomMap{}).AddIndex("idx_pm_room_map_protocol_user_account_user", "protocol", "user_id", "mx_user_id", "account_name")
 
-	db.AutoMigrate(&DbJoinedRoom{})
-	db.Model(&DbJoinedRoom{}).AddIndex("idx_user_protocol_account", "mx_user_id", "protocol", "account_name")
+	db.AutoMigrate(&DbKv{})
 
 	dbCache, err = lru.New2Q(10000)
 	if err != nil {
@@ -55,70 +55,68 @@ func InitDb() error {
 type DbAccountConfig struct {
 	gorm.Model
 
-	MxUserID string `gorm:"index:account_mxuserid"`
-	Name     string
-	Protocol string
-	Config   string
+	MxUserID string `gorm:"type:text;index"`
+	Name     string `gorm:"type:text"`
+	Protocol string `gorm:"type:text"`
+	Config   string `gorm:"type:text"`
 }
 
 // List of joined channels to be re-joined on reconnect
 type DbJoinedRoom struct {
-	gorm.Model
+	ID uint `gorm:"primary_key"`
 
 	// User id and account name
-	MxUserID    string
-	Protocol    string
-	AccountName string
+	MxUserID    string `gorm:"type:text"`
+	Protocol    string `gorm:"type:text"`
+	AccountName string `gorm:"type:text"`
 
 	// Room ID
-	RoomID connector.RoomID
+	RoomID connector.RoomID `gorm:"type:text"`
 }
 
 // User mapping between protocol user IDs and puppeted matrix ids
 type DbUserMap struct {
-	gorm.Model
+	ID uint `gorm:"primary_key"`
 
-	Protocol string
-	UserID   connector.UserID
-	MxUserID string `gorm:"index:usermap_mxuserid"`
+	Protocol string           `gorm:"type:text"`
+	UserID   connector.UserID `gorm:"type:text"`
+	MxUserID string           `gorm:"type:text;index"`
 }
 
 // Room mapping between Matrix rooms and outside rooms
 type DbRoomMap struct {
-	gorm.Model
+	ID uint `gorm:"primary_key"`
 
 	// Network protocol
-	Protocol string
+	Protocol string `gorm:"type:text"`
 
 	// Room id on the bridged network
-	RoomID connector.RoomID
+	RoomID connector.RoomID `gorm:"type:text"`
 
 	// Bridged room matrix id
-	MxRoomID string `gorm:"index:mxroomid"`
+	MxRoomID string `gorm:"type:text;index"`
 }
 
 // Room mapping between Matrix rooms and private messages
 type DbPmRoomMap struct {
-	gorm.Model
+	ID uint `gorm:"primary_key"`
 
 	// User id and account name of the local end viewed on Matrix
-	MxUserID    string
-	Protocol    string
-	AccountName string
+	MxUserID    string `gorm:"type:text"`
+	Protocol    string `gorm:"type:text"`
+	AccountName string `gorm:"type:text"`
 
 	// User id to reach them
-	UserID connector.UserID
+	UserID connector.UserID `gorm:"type:text"`
 
 	// Bridged room for PMs
-	MxRoomID string `gorm:"index:mxroomoid"`
+	MxRoomID string `gorm:"type:text;index"`
 }
 
 // Key-value store for various things
 type DbKv struct {
-	gorm.Model
-
-	Key   string `gorm:"unique_index"`
-	Value string
+	Key   string `gorm:"type:text;primary_key"`
+	Value string `gorm:"type:text"`
 }
 
 // ---- Simple locking mechanism