User addition to squads

Closes #8

lib/migrations/23_add_user_type.go

@@ -0,0 +1,29 @@
+// i2_bot – Instinct PokememBro Bot
+// Copyright (c) 2017 Vladimir "fat0troll" Hodakov
+
+package migrations
+
+import (
+	// stdlib
+	"database/sql"
+)
+
+// AddUserTypeUp creates `user_type` column in `squads_players` table
+func AddUserTypeUp(tx *sql.Tx) error {
+	_, err := tx.Exec("ALTER TABLE `squads_players` ADD COLUMN `user_type` varchar(191) NOT NULL DEFAULT 'common' COMMENT 'Уровень игрока' AFTER `player_id`;")
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// AddUserTypeDown  destroys `user_type` column
+func AddUserTypeDown(tx *sql.Tx) error {
+	_, err := tx.Exec("ALTER TABLE `squads_players` DROP COLUMN `user_type`;")
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

lib/migrations/migrations.go

@@ -33,6 +33,7 @@ func (m *Migrations) Init() {
 	goose.AddNamedMigration("20_create_squads.go", CreateSquadsUp, CreateSquadsDown)
 	goose.AddNamedMigration("21_change_telegram_id_column.go", ChangeTelegramIDColumnUp, ChangeTelegramIDColumnDown)
 	goose.AddNamedMigration("22_add_flood_chat_id.go", AddFloodChatIDUp, AddFloodChatIDDown)
+	goose.AddNamedMigration("23_add_user_type.go", AddUserTypeUp, AddUserTypeDown)
 }
 
 // Migrate migrates database to current version