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CodeIgniter query to SELECT vacant rooms from JOINed rooms and reservations tables during a range of dates

I want to select free rooms between dateStart and dateEnd in CodeIgniter.

I have 2 tables - rooms and reservations.

My current model code:

$this->db->select('rooms.*');

$this->db->join('reservations', 'rooms.ID = reservations.RoomID', 'left outer');

$this->db->where('rooms.Size >=', $PeopleNumber);
$this->db->where('reservations.DateStart <=', $DateEnd);
$this->db->where('reservations.DateEnd >=', $DateStart);

$this->db->group_by('rooms.Size');

$query = $this->db->get('rooms');

I've already checked this question: MySQL Looking for free rooms in reservation system

but I don't know how to multiselect in CodeIgniter.

My SQL Fiddle: http://sqlfiddle.com/#!9/c1f95/8

Solution

  • Ok i resolved this:

    $this->db->where('`ID` NOT IN (SELECT `RoomID` FROM `reservations` WHERE `DateStart` < "' .$DateEnd. '" AND `DateEnd` > "' .$DateStart. '")', NULL, FALSE);