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Remove old db migration that was merged into initial schema

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This commit is contained in:
Tulir Asokan 2021-11-07 23:51:34 +02:00
parent 7c7ac37ba7
commit b489d407c9
1 changed files with 0 additions and 31 deletions
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31
database/upgrades/2019-05-16-message-delete-cascade.go
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@ -1,31 +0,0 @@
package upgrades
import (
"database/sql"
)
func init() {
upgrades[1] = upgrade{"Add ON DELETE CASCADE to message table", func(tx *sql.Tx, ctx context) error {
if ctx.dialect == SQLite {
// SQLite doesn't support constraint updates, but it isn't that careful with constraints anyway.
return nil
}
res, _ := ctx.db.Query(`SELECT EXISTS(SELECT constraint_name FROM information_schema.table_constraints
WHERE table_name='message' AND constraint_name='message_chat_jid_fkey')`)
var exists bool
_ = res.Scan(&exists)
if exists {
_, err := tx.Exec("ALTER TABLE message DROP CONSTRAINT IF EXISTS message_chat_jid_fkey")
if err != nil {
return err
}
_, err = tx.Exec(`ALTER TABLE message ADD CONSTRAINT message_chat_jid_fkey
FOREIGN KEY (chat_jid, chat_receiver) REFERENCES portal(jid, receiver)
ON DELETE CASCADE`)
if err != nil {
return err
}
}
return nil
}}
}