Question

I am trying to add a grid in which I need to do a left join.

protected function _prepareCollection()
{
    $collection = Mage::getResourceModel('admin/user_collection')->join("school/school",'ref_id = referer_id',"school_name",**"left"**);
    var_dump((string)$collection->getSelect());

    $this->setCollection($collection);
    return parent::_prepareCollection();
}

Even though I have defined “left” when I see the dump it shows:

SELECT main_table.*, school/school.school_name FROM admin_user AS main_table INNER JOIN school AS school/school ON ref_id = referer_id

I tried to do a
$collection = Mage::getResourceModel('admin/user_collection')->**joinLeft**("school/school",'ref_id = referer_id',"school_name","left");
but for which my system does not show me any var_dump hangs.

Answer 1

try getSelect() before the join