Разработка компонента обработки файла XML - страница 4 - Разработка расширений для Joomla 3.x

    <div class="control-group">
      <div class="controls mfix">
        <label for="cl_login" class="control-label"><?php echo JText::_('COM_MFO_FORM_LOGIN'); ?></label>
        <input class="input_box" id="cl_login" name="cl_login" type="text" size="57" />
        <input class="btn btn-danger" type="button" value="<?php echo JText::_('COM_MFO_FORM_CLLOGIN'); ?>" onclick="ClearLoginButton()"/>
      </div>
    </div>

  protected function _ClearLoginData()
  {
    $db = JFactory::getDbo();
    $login = $db->quote(JFactory::getApplication()->input->getString('cl_login'));
    $count_users = $db->setQuery('select count(id) from #__users where username = '.$login)->loadAssoc();
    if (($count_users['count'] == 0)||(empty($count_users))) {
      JError::raiseWarning('', JText::_('COM_MFO_FORM_LOGIN_EXIST_ERROR'));
      return false;
    }
    $db->setQuery('DELETE FROM #__mfo_docums WHERE client = '.$login)->execute();
    $db->query();
    $db->setQuery('DELETE FROM #__mfo_accounts  WHERE client = '.$login)->execute();
    $db->query();
    return true;
  }

$cont_users = $db->setQuery('select count(id) from #__users where username = '.$db->quote($login))->loadResult();
if(!$cont_users){
      JError::raiseWarning('', JText::_('COM_MFO_FORM_LOGIN_EXIST_ERROR'));
      return false;
}

$db->setQuery('DELETE FROM #__mfo_docums WHERE client = '.$db->quote($login))->execute();
$db->query();

$db->setQuery('DELETE FROM #__mfo_docums WHERE client = '.$db->quote($login))->execute();
$db->setQuery('DELETE FROM #__mfo_accounts  WHERE client = '.$db->quote($login))->execute();
return true;

	/**
	 * Execute the SQL statement.
	 *
	 * @return  mixed  A database cursor resource on success, boolean false on failure.
	 *
	 * @since   11.1
	 * @throws  RuntimeException
	 * @deprecated  13.1 (Platform) & 4.0 (CMS)
	 */
	public function query()
	{
		JLog::add('JDatabase::query() is deprecated, use JDatabaseDriver::execute() instead.', JLog::WARNING, 'deprecated');

		return $this->execute();
	}

$login = "1 OR 1 = 1"
$db->setQuery('DELETE FROM #__mfo_docums WHERE client = '.$db->quote($login))->execute();

$login = "1 OR 1 = 1";
$db->setQuery( 'DELETE FROM #__article WHERE title = ' . $db->quote( $login ) )->execute();
print_r( $db->getErrorMsg() );

DELETE FROM prefix_mfo_docums WHERE title = 1 OR 1 = 1

DELETE FROM prefix_mfo_docums WHERE title = '1 OR 1 = 1'