mirror of
https://github.com/matrix-org/dendrite.git
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119 lines
4.1 KiB
Go
119 lines
4.1 KiB
Go
// Copyright 2017-2018 New Vector Ltd
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// Copyright 2019-2020 The Matrix.org Foundation C.I.C.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package postgres
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import (
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"context"
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"database/sql"
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)
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const roomCanonicalAliasSchema = `
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-- Stores room canonical alias and room IDs they refer to
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CREATE TABLE IF NOT EXISTS roomserver_canonical_aliases (
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-- Canonical alias of the room
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canonical_alias TEXT NOT NULL PRIMARY KEY,
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-- Room ID the canonical_alias refers to
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room_id TEXT NOT NULL,
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-- User ID of the creator of this canonical_alias
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creator_id TEXT NOT NULL
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FOREIGN KEY (canonical_alias) REFERENCES roomserver_room_aliases(alias)
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);
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CREATE INDEX IF NOT EXISTS roomserver_room_id_idx ON roomserver_canonical_aliases(room_id);
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`
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const insertRoomCanonicalAliasSQL = "" +
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"INSERT INTO roomserver_canonical_aliases (canonical_alias, room_id, creator_id) VALUES ($1, $2, $3)"
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const selectRoomIDFromCanonicalAliasSQL = "" +
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"SELECT room_id FROM roomserver_canonical_aliases WHERE canonical_alias = $1"
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const selectCanonicalAliasFromRoomIDSQL = "" +
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"SELECT canonical_alias FROM roomserver_canonical_aliases WHERE room_id = $1"
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const selectCreatorIDFromCanonicalAliasSQL = "" +
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"SELECT creator_id FROM roomserver_canonical_aliases WHERE canonical_alias = $1"
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const deleteRoomCanonicalAliasSQL = "" +
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"DELETE FROM roomserver_canonical_aliases WHERE canonical_alias = $1"
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type roomCanonicalAliasStatements struct {
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insertRoomCanonicalAliasStmt *sql.Stmt
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selectRoomIDFromCanonicalAliasStmt *sql.Stmt
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selectCanonicalAliasFromRoomIDStmt *sql.Stmt
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selectCreaterIDFromCanonicalAliasStmt *sql.Stmt
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deleteRoomCanonicalAliasStmt *sql.Stmt
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}
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func (s *roomCanonicalAliasStatements) prepare(db *sql.DB) (err error) {
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_, err = db.Exec(roomCanonicalAliasSchema)
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if err != nil {
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return
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}
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return statementList{
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{&s.insertRoomCanonicalAliasStmt, insertRoomCanonicalAliasSQL},
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{&s.selectRoomIDFromCanonicalAliasStmt, selectRoomIDFromCanonicalAliasSQL},
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{&s.selectCanonicalAliasFromRoomIDStmt, selectCanonicalAliasFromRoomIDSQL},
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{&s.selectCreaterIDFromCanonicalAliasStmt, selectCreatorIDFromCanonicalAliasSQL},
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{&s.deleteRoomCanonicalAliasStmt, deleteRoomCanonicalAliasSQL},
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}.prepare(db)
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}
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func (s *roomCanonicalAliasStatements) insertRoomCanonicalAlias(
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ctx context.Context, canonical_alias string, roomID string, creatorUserID string,
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) (err error) {
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_, err = s.insertRoomCanonicalAliasStmt.ExecContext(ctx, canonical_alias, roomID, creatorUserID)
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return
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}
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func (s *roomCanonicalAliasStatements) selectRoomIDFromCanonicalAlias(
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ctx context.Context, canonical_alias string,
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) (roomID string, err error) {
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err = s.selectRoomIDFromCanonicalAliasStmt.QueryRowContext(ctx, canonical_alias).Scan(&roomID)
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if err == sql.ErrNoRows {
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return "", nil
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}
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return
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}
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func (s *roomCanonicalAliasStatements) selectCanonicalAliasFromRoomID(
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ctx context.Context, roomID string,
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) (canonical_alias string, err error) {
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err = s.selectCanonicalAliasFromRoomIDStmt.QueryRowContext(ctx, roomID).Scan(&canonical_alias)
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if err == sql.ErrNoRows {
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return "", nil
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}
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return
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}
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func (s *roomCanonicalAliasStatements) selectCreatorIDFromCanonicalAlias(
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ctx context.Context, canonical_alias string,
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) (creatorID string, err error) {
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err = s.selectCreaterIDFromCanonicalAliasStmt.QueryRowContext(ctx, canonical_alias).Scan(&creatorID)
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if err == sql.ErrNoRows {
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return "", nil
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}
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return
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}
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func (s *roomCanonicalAliasStatements) deleteRoomCanonicalAlias(
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ctx context.Context, roomID string,
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) (err error) {
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_, err = s.deleteRoomCanonicalAliasStmt.ExecContext(ctx, roomID)
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return
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}
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