dendrite/syncapi/storage/postgres/ignores_table.go

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// Copyright 2022 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package postgres
import (
"context"
"database/sql"
"encoding/json"
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"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/syncapi/storage/tables"
"github.com/matrix-org/dendrite/syncapi/types"
)
const ignoresSchema = `
-- Stores data about ignoress
CREATE TABLE IF NOT EXISTS syncapi_ignores (
-- The user ID whose ignore list this belongs to.
user_id TEXT NOT NULL,
ignores_json TEXT NOT NULL,
PRIMARY KEY(user_id)
);
`
const selectIgnoresSQL = "" +
"SELECT ignores_json FROM syncapi_ignores WHERE user_id = $1"
const upsertIgnoresSQL = "" +
"INSERT INTO syncapi_ignores (user_id, ignores_json) VALUES ($1, $2)" +
" ON CONFLICT (user_id) DO UPDATE set ignores_json = $2"
type ignoresStatements struct {
selectIgnoresStmt *sql.Stmt
upsertIgnoresStmt *sql.Stmt
}
func NewPostgresIgnoresTable(db *sql.DB) (tables.Ignores, error) {
_, err := db.Exec(ignoresSchema)
if err != nil {
return nil, err
}
s := &ignoresStatements{}
if s.selectIgnoresStmt, err = db.Prepare(selectIgnoresSQL); err != nil {
return nil, err
}
if s.upsertIgnoresStmt, err = db.Prepare(upsertIgnoresSQL); err != nil {
return nil, err
}
return s, nil
}
func (s *ignoresStatements) SelectIgnores(
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ctx context.Context, txn *sql.Tx, userID string,
) (*types.IgnoredUsers, error) {
var ignoresData []byte
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err := sqlutil.TxStmt(txn, s.selectIgnoresStmt).QueryRowContext(ctx, userID).Scan(&ignoresData)
if err != nil {
return nil, err
}
var ignores types.IgnoredUsers
if err = json.Unmarshal(ignoresData, &ignores); err != nil {
return nil, err
}
return &ignores, nil
}
func (s *ignoresStatements) UpsertIgnores(
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ctx context.Context, txn *sql.Tx, userID string, ignores *types.IgnoredUsers,
) error {
ignoresJSON, err := json.Marshal(ignores)
if err != nil {
return err
}
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_, err = sqlutil.TxStmt(txn, s.upsertIgnoresStmt).ExecContext(ctx, userID, ignoresJSON)
return err
}