GoToSocial/internal/db/bundb/migrations/20230521105850_emoji_empty_...

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// 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"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"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
// constraints before we go editing the emoji tables.
if tx.Dialect().Name() == dialect.PG {
for _, constraint := range []string{
"shortcodedomain", // initial constraint name
"domainshortcode", // later constraint name
} {
if _, err := tx.ExecContext(
ctx,
"ALTER TABLE ? DROP CONSTRAINT IF EXISTS ?",
bun.Ident("emojis"),
bun.Safe(constraint),
); err != nil {
return err
}
}
}
// Set all existing emoji domains to null
// where domain is '', to fix the bug!
if _, err := tx.
NewUpdate().
Table("emojis").
Set("? = NULL", bun.Ident("domain")).
Where("? = ?", bun.Ident("domain"), "").
Exec(ctx); err != nil {
return err
}
// Create the new emojis table.
if _, err := tx.
NewCreateTable().
ModelTableExpr("new_emojis").
Model(&gtsmodel.Emoji{}).
Exec(ctx); err != nil {
return err
}
// Specify columns explicitly to
// avoid any Postgres shenanigans.
columns := []string{
"id",
"created_at",
"updated_at",
"shortcode",
"domain",
"image_remote_url",
"image_static_remote_url",
"image_url",
"image_static_url",
"image_path",
"image_static_path",
"image_content_type",
"image_static_content_type",
"image_file_size",
"image_static_file_size",
"image_updated_at",
"disabled",
"uri",
"visible_in_picker",
"category_id",
}
// Copy existing emojis to the new table.
if _, err := tx.
NewInsert().
Table("new_emojis").
Table("emojis").
Column(columns...).
Exec(ctx); err != nil {
return err
}
// Drop the old table.
if _, err := tx.
NewDropTable().
Table("emojis").
Exec(ctx); err != nil {
return err
}
// Rename new table to old table.
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.
for index, columns := range map[string][]string{
"emojis_id_idx": {"id"},
"emojis_available_custom_idx": {"visible_in_picker", "disabled", "shortcode"},
"emojis_image_static_url_idx": {"image_static_url"},
"emojis_uri_idx": {"uri"},
} {
if _, err := tx.
NewCreateIndex().
Table("emojis").
Index(index).
Column(columns...).
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)
}
}