/**
* Called when the page is set before rendering.
*
* This calendar caches the pictures and journals for the new page.
*
* @access private
*/
protected function _page_changed()
{
$first_day = new DATE_TIME(mktime(0, 0, 0, $this->_curr_month, 1, $this->_curr_year));
$last_day = new DATE_TIME(mktime(23, 59, 59, $this->_curr_month, $first_day->last_legal_day(), $this->_curr_year));
$journal_query = $this->album->entry_query();
$journal_query->set_type('journal');
$journal_query->set_days($first_day->as_iso(), $last_day->as_iso());
$this->_journals = $journal_query->objects();
$picture_query = $this->album->entry_query();
$picture_query->set_type('picture');
$picture_query->set_days($first_day->as_iso(), $last_day->as_iso());
$this->_pictures = $picture_query->objects();
}
