GoToSocial/internal/db/bundb/migrations/20220905150505_custom_emoji...

121 lines
3.3 KiB
Go
Raw Normal View History

// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package migrations
import (
"context"
"database/sql"
gtsmodel "github.com/superseriousbusiness/gotosocial/internal/db/bundb/migrations/20211113114307_init"
"github.com/uptrace/bun"
"github.com/uptrace/bun/dialect"
)
func init() {
up := func(ctx context.Context, db *bun.DB) error {
return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
// SQLite doesn't mind creating multiple constraints with the same name,
// but Postgres balks at it, so remove the constraint before we go editing
// the emoji tables.
if tx.Dialect().Name() == dialect.PG {
if _, err := tx.ExecContext(ctx, "ALTER TABLE ? DROP CONSTRAINT ?", bun.Ident("emojis"), bun.Safe("shortcodedomain")); err != nil {
return err
}
}
// create the new emojis table
if _, err := tx.
NewCreateTable().
Model(&gtsmodel.Emoji{}).
ModelTableExpr("new_emojis").
Exec(ctx); err != nil {
return err
}
// move all old emojis to the new table
currentEmojis := []*gtsmodel.Emoji{}
if err := tx.
NewSelect().
Model(&currentEmojis).
Scan(ctx); err != nil && err != sql.ErrNoRows {
return err
}
for _, currentEmoji := range currentEmojis {
if _, err := tx.
NewInsert().
Model(currentEmoji).
ModelTableExpr("new_emojis").
Exec(ctx); err != nil {
return err
}
}
// we have all the data we need from the old table, so we can safely drop it now
if _, err := tx.NewDropTable().Model(&gtsmodel.Emoji{}).Exec(ctx); err != nil {
return err
}
// rename the new table to the same name as the old table was
if _, err := tx.ExecContext(ctx, "ALTER TABLE ? RENAME TO ?", bun.Ident("new_emojis"), bun.Ident("emojis")); err != nil {
return err
}
// add indexes to the new table
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Emoji{}).
Index("emojis_id_idx").
Column("id").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Emoji{}).
Index("emojis_uri_idx").
Column("uri").
Exec(ctx); err != nil {
return err
}
if _, err := tx.
NewCreateIndex().
Model(&gtsmodel.Emoji{}).
Index("emojis_available_custom_idx").
Column("visible_in_picker", "disabled", "shortcode").
Exec(ctx); err != nil {
return err
}
return nil
})
}
down := func(ctx context.Context, db *bun.DB) error {
return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
return nil
})
}
if err := Migrations.Register(up, down); err != nil {
panic(err)
}
}