gtsocial-umbx

20220905150505_custom_emoji_updates.go (3389B)

---

 // 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)
 	}
 }