39 lines
965 B
Go
39 lines
965 B
Go
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// i2_bot – Instinct PokememBro Bot
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// Copyright (c) 2017-2018 Vladimir "fat0troll" Hodakov
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package migrations
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import (
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"database/sql"
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"errors"
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)
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// DeletePokememesTablesUp drops `pokememes`, `pokememes_elements` and `pokememes_locations` tables
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// These tables data is rarely changed, so I decided to hold such data in source code
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func DeletePokememesTablesUp(tx *sql.Tx) error {
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request := "DROP TABLE IF EXISTS `pokememes`"
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_, err := tx.Exec(request)
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if err != nil {
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return err
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}
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request = "DROP TABLE IF EXISTS `pokememes_elements`"
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_, err = tx.Exec(request)
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if err != nil {
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return err
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}
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request = "DROP TABLE IF EXISTS `pokememes_locations`"
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_, err = tx.Exec(request)
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if err != nil {
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return err
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}
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return nil
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}
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// DeletePokememesTablesDown does nothing, because after nerf old information isn't needed at all
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func DeletePokememesTablesDown(tx *sql.Tx) error {
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return errors.New("This migration is irreversible, as nerf itself")
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}
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