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<?php
class Item_taxes extends CI_Model
{
    /*
    Gets tax info for a particular item
    */
    public function get_info($item_id)
    {
        $this->db->from('items_taxes');
        $this->db->where('item_id',$item_id);

        //return an array of taxes for an item
        return $this->db->get()->result_array();
    }
    
    /*
    Inserts or updates an item's taxes
    */
    public function save(&$items_taxes_data, $item_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_id);

        foreach($items_taxes_data as $row)
        {
            $row['item_id'] = $item_id;
            $success &= $this->db->insert('items_taxes', $row);     
        }
        
        $this->db->trans_complete();

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

        return $success;
    }

    /*
    Saves taxes for multiple items
    */
    public function save_multiple(&$items_taxes_data, $item_ids)
    {
        $success = TRUE;
        
        //Run these queries as a transaction, we want to make sure we do all or nothing
        $this->db->trans_start();
        
        foreach(explode(':', $item_ids) as $item_id)
        {
            $this->delete($item_id);

            foreach($items_taxes_data as $row)
            {
                $row['item_id'] = $item_id;
                $success &= $this->db->insert('items_taxes', $row);     
            }
        }

        $this->db->trans_complete();

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

        return $success;
    }

    /*
    Deletes taxes given an item
    */
    public function delete($item_id)
    {
        return $this->db->delete('items_taxes', array('item_id' => $item_id)); 
    }
}
?>