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i2_bot/lib/migrations/31_change_squads_table.go
2018-02-17 07:03:58 +04:00

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// i2_bot Instinct PokememBro Bot
// Copyright (c) 2017 Vladimir "fat0troll" Hodakov
package migrations
import (
"database/sql"
)
// ChangeSquadsTableUp changes `sqauds` to new format
func ChangeSquadsTableUp(tx *sql.Tx) error {
request := "ALTER TABLE `squads` DROP COLUMN `flood_chat_id`"
_, err := tx.Exec(request)
if err != nil {
return err
}
request = "ALTER TABLE `squads` DROP COLUMN `author_id`"
_, err = tx.Exec(request)
if err != nil {
return err
}
request = "ALTER TABLE `squads` ADD COLUMN `min_level` int(11) NOT NULL DEFAULT 0 AFTER `chat_id`"
_, err = tx.Exec(request)
if err != nil {
return err
}
request = "ALTER TABLE `squads` ADD COLUMN `max_level` int(11) NOT NULL DEFAULT 0 AFTER `min_level`"
_, err = tx.Exec(request)
if err != nil {
return err
}
request = "ALTER TABLE `squads` ADD COLUMN `invite_link` varchar(191) NOT NULL DEFAULT 'https://example.com' AFTER `max_level`"
_, err = tx.Exec(request)
if err != nil {
return err
}
return nil
}
// ChangeSquadsTableDown reverts `squads` to old format
func ChangeSquadsTableDown(tx *sql.Tx) error {
request := "ALTER TABLE `squads` ADD COLUMN `flood_chat_id` int(11) NOT NULL AFTER `chat_id`"
_, err := tx.Exec(request)
if err != nil {
return err
}
request = "ALTER TABLE `squads` ADD COLUMN `author_id` int(11) NOT NULL AFTER `flood_chat_id"
_, err = tx.Exec(request)
if err != nil {
return err
}
request = "ALTER TABLE `squads` DROP COLUMN `min_level`"
_, err = tx.Exec(request)
if err != nil {
return err
}
request = "ALTER TABLE `squads` DROP COLUMN `max_level`"
_, err = tx.Exec(request)
if err != nil {
return err
}
request = "ALTER TABLE `squads` DROP COLUMN `invite_link`"
_, err = tx.Exec(request)
if err != nil {
return err
}
return nil
}