Add karma field to players

Karma will be used for inactive users filtering

lib/migrations/35_add_karma_to_players.go

@@ -0,0 +1,29 @@
+// i2_bot – Instinct PokememBro Bot
+// Copyright (c) 2017-2018 Vladimir "fat0troll" Hodakov
+
+package migrations
+
+import (
+	// stdlib
+	"database/sql"
+)
+
+// AddKarmaToPlayersUp creates `karma` column in `players` table
+func AddKarmaToPlayersUp(tx *sql.Tx) error {
+	_, err := tx.Exec("ALTER TABLE `players` ADD COLUMN `karma` INT(11) NOT NULL DEFAULT 250 COMMENT 'Карма игрока' AFTER `status`")
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// AddKarmaToPlayersDown destroys `karma` column
+func AddKarmaToPlayersDown(tx *sql.Tx) error {
+	_, err := tx.Exec("ALTER TABLE `players` DROP COLUMN `karma`")
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

lib/migrations/migrations.go

@@ -45,6 +45,7 @@ func (m *Migrations) Init() {
 	goose.AddNamedMigration("32_add_is_active_to_pokememes.go", AddIsActiveToPokememesUp, AddIsActiveToPokememesDown)
 	goose.AddNamedMigration("33_delete_datamapped_tables.go", DeleteDataMappedTablesUp, DeleteDataMappedTablesDown)
 	goose.AddNamedMigration("34_delete_pokememes_tables.go", DeletePokememesTablesUp, DeletePokememesTablesDown)
+	goose.AddNamedMigration("35_add_karma_to_players.go", AddKarmaToPlayersUp, AddKarmaToPlayersDown)
 }
 
 // Migrate migrates database to current version