/**
* Creates a new, unsaved line item, but if it's a ticket line item
* with a total of 0, or a subtotal of 0, returns null instead
* @param EEI_Line_Item $line_item
* @return EEI_Line_Item
*/
protected function _filter_zero_line_item(EEI_Line_Item $line_item)
{
if ($line_item->type() === EEM_Line_Item::type_line_item && $line_item->OBJ_type() === 'Ticket' && $line_item->quantity() == 0) {
return null;
}
return $line_item;
}
/**
* Adjusts quantities for line items for tickets according to the registrations provided
* in the constructor
* @param EEI_Line_Item $line_item
* @return EEI_Line_Item
*/
protected function _filter_billable_line_item(EEI_Line_Item $line_item)
{
// is this a ticket ?
if ($line_item->type() === EEM_Line_Item::type_line_item && $line_item->OBJ_type() == 'Ticket') {
// if this ticket is billable at this moment, then we should have a positive quantity
if (isset($this->_counts_per_line_item_code[$line_item->code()])) {
// set quantity based on number of billable registrations for this ticket
$quantity = $this->_counts_per_line_item_code[$line_item->code()];
} else {
$quantity = 0;
}
$line_item->set_quantity($quantity);
$line_item->set_total($line_item->unit_price() * $line_item->quantity());
}
return $line_item;
}
