fix: escape 'key' as reserved word in all MySQL queries with backticks

database/db.go

@@ -41,10 +41,10 @@ func (db *DB) Conn() *sql.DB {
 
 func (db *DB) migrate() error {
 	stmts := []string{
-		`CREATE TABLE IF NOT EXISTS settings (
-			key   VARCHAR(255) PRIMARY KEY,
-			value TEXT NOT NULL
-		) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4`,
+		"CREATE TABLE IF NOT EXISTS settings (" +
+			"`key`   VARCHAR(255) PRIMARY KEY," +
+			"value TEXT NOT NULL" +
+			") ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 		`CREATE TABLE IF NOT EXISTS users (
 			id            BIGINT AUTO_INCREMENT PRIMARY KEY,
 			email         VARCHAR(255) NOT NULL UNIQUE,
@@ -52,13 +52,13 @@ func (db *DB) migrate() error {
 			created_at    DATETIME DEFAULT CURRENT_TIMESTAMP,
 			updated_at    DATETIME DEFAULT CURRENT_TIMESTAMP
 		) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4`,
-		`CREATE TABLE IF NOT EXISTS user_settings (
-			user_id BIGINT NOT NULL,
-			key     VARCHAR(255) NOT NULL,
-			value   TEXT NOT NULL,
-			PRIMARY KEY (user_id, key),
-			FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
-		) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4`,
+		"CREATE TABLE IF NOT EXISTS user_settings (" +
+			"user_id BIGINT NOT NULL," +
+			"`key`   VARCHAR(255) NOT NULL," +
+			"value   TEXT NOT NULL," +
+			"PRIMARY KEY (user_id, `key`)," +
+			"FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE" +
+			") ENGINE=InnoDB DEFAULT CHARSET=utf8mb4",
 		`CREATE TABLE IF NOT EXISTS repositories (
 			id         BIGINT AUTO_INCREMENT PRIMARY KEY,
 			user_id    BIGINT,
@@ -105,7 +105,7 @@ func (db *DB) migrate() error {
 func (db *DB) seedDefaults() error {
 	for key, val := range models.DefaultSettings {
 		_, err := db.conn.Exec(
-			`INSERT IGNORE INTO settings (key, value) VALUES (?, ?)`, key, val,
+			"INSERT IGNORE INTO settings (`key`, value) VALUES (?, ?)", key, val,
 		)
 		if err != nil {
 			log.Printf("warning: failed to seed setting %s: %v", key, err)