Add mailboxdb.updateName()

src/mailboxdb.js

@@ -18,6 +18,8 @@ exports = module.exports = {
     getByOwnerId: getByOwnerId,
     delByOwnerId: delByOwnerId,
 
+    updateName: updateName,
+
     _clear: clear,
 
     TYPE_USER: 'user',
@@ -80,6 +82,20 @@ function delByOwnerId(id, callback) {
     });
 }
 
+function updateName(oldName, newName, callback) {
+    assert.strictEqual(typeof oldName, 'string');
+    assert.strictEqual(typeof newName, 'string');
+    assert.strictEqual(typeof callback, 'function');
+
+    database.query('UPDATE mailboxes SET name=? WHERE name=?', [ newName, oldName ], function (error, result) {
+        if (error && error.code === 'ER_DUP_ENTRY') return callback(new DatabaseError(DatabaseError.ALREADY_EXISTS, 'mailbox already exists'));
+        if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
+        if (result.affectedRows !== 1) return callback(new DatabaseError(DatabaseError.NOT_FOUND));
+
+        callback(null);
+    });
+}
+
 function getMailbox(name, callback) {
     assert.strictEqual(typeof name, 'string');
     assert.strictEqual(typeof callback, 'function');