/**
* Add primary coupon to collection
*
* @return $this
*/
public function _initSelect()
{
parent::_initSelect();
$this->getSelect()->joinLeft(['rule_coupons' => $this->getTable('salesrule_coupon')], 'main_table.rule_id = rule_coupons.rule_id AND rule_coupons.is_primary = 1', ['code']);
return $this;
}
public function testAddFieldToFilter()
{
$this->_prepareAddFilterStubs();
$this->abstractCollection->addFieldToFilter('website_ids', []);
}