53 lines
1.9 KiB
Go
53 lines
1.9 KiB
Go
// i2_bot – Instinct PokememBro Bot
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// Copyright (c) 2017 Vladimir "fat0troll" Hodakov
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package migrations
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import (
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// stdlib
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"database/sql"
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)
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func CreateRelationsUp(tx *sql.Tx) error {
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create_request := "CREATE TABLE `pokememes_locations` ("
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create_request += "`id` int(11) NOT NULL AUTO_INCREMENT COMMENT 'ID связи',"
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create_request += "`pokememe_id` int(11) NOT NULL COMMENT 'ID покемема',"
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create_request += "`location_id` int(11) NOT NULL COMMENT 'ID локации',"
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create_request += "`created_at` datetime NOT NULL COMMENT 'Добавлено в базу',"
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create_request += "PRIMARY KEY (`id`),"
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create_request += "UNIQUE KEY `id` (`id`),"
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create_request += "KEY `pokememes_locations_created_at` (`created_at`)"
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create_request += ") ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COMMENT='Связь Покемемы-Локации';"
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_, err := tx.Exec(create_request)
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if err != nil {
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return err
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}
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create_request = "CREATE TABLE `pokememes_elements` ("
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create_request += "`id` int(11) NOT NULL AUTO_INCREMENT COMMENT 'ID связи',"
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create_request += "`pokememe_id` int(11) NOT NULL COMMENT 'ID покемема',"
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create_request += "`element_id` int(11) NOT NULL COMMENT 'ID элемента',"
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create_request += "`created_at` datetime NOT NULL COMMENT 'Добавлено в базу',"
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create_request += "PRIMARY KEY (`id`),"
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create_request += "UNIQUE KEY `id` (`id`),"
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create_request += "KEY `pokememes_elements_created_at` (`created_at`)"
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create_request += ") ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COMMENT='Связь Покемемы-Элементы';"
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_, err2 := tx.Exec(create_request)
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if err2 != nil {
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return err2
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}
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return nil
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}
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func CreateRelationsDown(tx *sql.Tx) error {
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_, err := tx.Exec("DROP TABLE `pokememes_locations`;")
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if err != nil {
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return err
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}
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_, err2 := tx.Exec("DROP TABLE `pokememes_elements`;")
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if err2 != nil {
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return err2
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}
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return nil
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}
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