protected function _prepareForm()
{
/** @var Ess_M2ePro_Model_Magento_Product_Rule $model */
$model = $this->getData('rule_model');
$storeId = $model->getStoreId();
$prefix = $model->getPrefix();
$form = new Varien_Data_Form();
$form->setHtmlId($prefix);
$renderer = Mage::getBlockSingleton('adminhtml/widget_form_renderer_fieldset')->setTemplate('M2ePro/magento/product/rule.phtml')->setNewChildUrl($this->getUrl('*/adminhtml_general/magentoRuleGetNewConditionHtml', array('prefix' => $prefix, 'store' => $storeId)));
$fieldset = $form->addFieldset($prefix, array())->setRenderer($renderer);
$fieldset->addField($prefix . '_field', 'text', array('name' => 'conditions' . $prefix, 'label' => Mage::helper('M2ePro')->__('Conditions'), 'title' => Mage::helper('M2ePro')->__('Conditions'), 'required' => true))->setRule($model)->setRenderer(Mage::getBlockSingleton('rule/conditions'));
$this->setForm($form);
return parent::_prepareForm();
}