Zend Framework Select Objects And UNION()

Question

I\'m pretty sure this is not possible in Zend Framework (I have searched the Web, the documentation and issue tracker) but I just want to make sure so I\'m asking here.

Answer 1

This practical example shows a function that returns a rowset of either latest or if a available favourite blog entries of a specific year (artwork blog):

public function fetchBestOf($year)
{
    $selectLatest = $this->select()->where('isHidden = 0')
                                   ->where('YEAR(dateCreated) = ' . $year)
                                   ->where('isHighlight = 0');
    $selectHighlights = $this->select()->where('isHidden = 0')
                                       ->where('YEAR(dateCreated) = ' . $year)
                                       ->where('isHighlight = 1');

    $selectUnion = $this->select()->union(array($selectLatest, $selectHighlights), Zend_Db_Select::SQL_UNION_ALL)
                   ->order('isHighlight DESC')
                   ->order('dateCreated DESC')
                   ->order('workID DESC')
                   ->limit('5');

    $rowset = $this->fetchAll($selectUnion);
    return $rowset;
}