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<?php
class Item_kit_items extends CI_Model
{
    /*
    Gets item kit items for a particular item kit
    */
    public function get_info($item_kit_id)
    {
        $this->db->select('item_kit_id, item_kit_items.item_id, quantity, kit_sequence, unit_price, item_type, stock_type');
        $this->db->from('item_kit_items as item_kit_items');
        $this->db->join('items as items', 'item_kit_items.item_id = items.item_id');
        $this->db->where('item_kit_id', $item_kit_id);
        $this->db->order_by('kit_sequence', 'asc');

        //return an array of item kit items for an item
        return $this->db->get()->result_array();
    }

    /*
    Gets item kit items for a particular item kit
    */
    public function get_info_for_sale($item_kit_id)
    {
        $this->db->from('item_kit_items');
        $this->db->where('item_kit_id', $item_kit_id);

        $this->db->order_by('kit_sequence', 'desc');

        //return an array of item kit items for an item
        return $this->db->get()->result_array();
    }
    /*
    Inserts or updates an item kit's items
    */
    public function save(&$item_kit_items_data, $item_kit_id)
    {
        $success = TRUE;

        //Run these queries as a transaction, we want to make sure we do all or nothing

        $this->db->trans_start();

        $this->delete($item_kit_id);

        if ($item_kit_items_data != NULL) {
            foreach ($item_kit_items_data as $row) {
                $row['item_kit_id'] = $item_kit_id;
                $success &= $this->db->insert('item_kit_items', $row);
            }
        }

        $this->db->trans_complete();

        $success &= $this->db->trans_status();

        return $success;
    }
    
    /*
    Deletes item kit items given an item kit
    */
    public function delete($item_kit_id)
    {
        return $this->db->delete('item_kit_items', array('item_kit_id' => $item_kit_id)); 
    }
}
?>