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<?php |
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namespace EventEspresso\modules\ticket_selector; |
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use EE_Datetime; |
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use EE_Error; |
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use EE_Ticket; |
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use EEM_Datetime; |
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use EventEspresso\core\exceptions\InvalidDataTypeException; |
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use EventEspresso\core\exceptions\InvalidInterfaceException; |
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use InvalidArgumentException; |
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defined('EVENT_ESPRESSO_VERSION') || exit; |
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/** |
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* Class TicketDatetimeAvailabilityTracker |
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* keeps track of event datetime ticket availability for the Ticket Selector |
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* when multiple tickets are being added to the cart |
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* |
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* @package EventEspresso\modules\ticket_selector |
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* @author Brent Christensen |
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* @since $VID:$ |
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*/ |
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class TicketDatetimeAvailabilityTracker |
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{ |
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/** |
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* array of datetimes and the spaces available for them |
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* |
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* @var array[][] |
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*/ |
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private $available_spaces = array(); |
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/** |
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* @var EEM_Datetime $datetime_model |
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*/ |
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private $datetime_model; |
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/** |
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* TicketDatetimeAvailabilityTracker constructor. |
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* |
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* @param EEM_Datetime $datetime_model |
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*/ |
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public function __construct(EEM_Datetime $datetime_model) |
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{ |
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$this->datetime_model = $datetime_model; |
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} |
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/** |
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* ticketDatetimeAvailability |
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* creates an array of tickets plus all of the datetimes available to each ticket |
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* and tracks the spaces remaining for each of those datetimes |
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* |
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* @param EE_Ticket $ticket - selected ticket |
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* @param bool $get_original_ticket_spaces |
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* @return int |
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* @throws EE_Error |
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* @throws InvalidArgumentException |
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* @throws InvalidDataTypeException |
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* @throws InvalidInterfaceException |
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*/ |
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public function ticketDatetimeAvailability(EE_Ticket $ticket, $get_original_ticket_spaces = false) |
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{ |
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// if the $_available_spaces array has not been set up yet... |
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if (! isset($this->available_spaces['tickets'][ $ticket->ID() ])) { |
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$this->setInitialTicketDatetimeAvailability($ticket); |
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} |
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$available_spaces = $ticket->qty() - $ticket->sold(); |
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if (isset($this->available_spaces['tickets'][ $ticket->ID() ])) { |
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// loop thru tickets, which will ALSO include individual ticket records AND a total |
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foreach ($this->available_spaces['tickets'][ $ticket->ID() ] as $DTD_ID => $spaces) { |
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// if we want the original datetime availability BEFORE we started subtracting tickets ? |
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if ($get_original_ticket_spaces) { |
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// then grab the available spaces from the "tickets" array |
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// and compare with the above to get the lowest number |
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$available_spaces = min( |
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$available_spaces, |
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$this->available_spaces['tickets'][ $ticket->ID() ][ $DTD_ID ] |
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); |
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} else { |
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// we want the updated ticket availability as stored in the "datetimes" array |
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$available_spaces = min($available_spaces, $this->available_spaces['datetimes'][ $DTD_ID ]); |
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} |
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} |
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} |
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return $available_spaces; |
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} |
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/** |
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* @param EE_Ticket $ticket |
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* @return void |
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* @throws InvalidArgumentException |
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* @throws InvalidInterfaceException |
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* @throws InvalidDataTypeException |
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* @throws EE_Error |
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*/ |
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private function setInitialTicketDatetimeAvailability(EE_Ticket $ticket) |
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{ |
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// first, get all of the datetimes that are available to this ticket |
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$datetimes = $ticket->get_many_related( |
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'Datetime', |
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array( |
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array( |
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'DTT_EVT_end' => array( |
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'>=', |
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$this->datetime_model->current_time_for_query('DTT_EVT_end'), |
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), |
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), |
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'order_by' => array('DTT_EVT_start' => 'ASC'), |
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) |
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); |
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if (! empty($datetimes)) { |
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// now loop thru all of the datetimes |
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foreach ($datetimes as $datetime) { |
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if ($datetime instanceof EE_Datetime) { |
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// the number of spaces available for the datetime without considering individual ticket quantities |
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$spaces_remaining = $datetime->spaces_remaining(); |
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// save the total available spaces ( the lesser of the ticket qty minus the number of tickets sold |
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// or the datetime spaces remaining) to this ticket using the datetime ID as the key |
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$this->available_spaces['tickets'][ $ticket->ID() ][ $datetime->ID() ] = min( |
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$ticket->qty() - $ticket->sold(), |
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$spaces_remaining |
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); |
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// if the remaining spaces for this datetime is already set, |
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// then compare that against the datetime spaces remaining, and take the lowest number, |
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// else just take the datetime spaces remaining, and assign to the datetimes array |
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$this->available_spaces['datetimes'][ $datetime->ID() ] = isset( |
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$this->available_spaces['datetimes'][ $datetime->ID() ] |
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) |
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? min($this->available_spaces['datetimes'][ $datetime->ID() ], $spaces_remaining) |
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: $spaces_remaining; |
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} |
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} |
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} |
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} |
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/** |
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* @param EE_Ticket $ticket |
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* @param int $qty |
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* @return void |
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* @throws EE_Error |
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*/ |
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public function recalculateTicketDatetimeAvailability(EE_Ticket $ticket, $qty = 0) |
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{ |
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if (isset($this->available_spaces['tickets'][ $ticket->ID() ])) { |
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// loop thru tickets, which will ALSO include individual ticket records AND a total |
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foreach ($this->available_spaces['tickets'][ $ticket->ID() ] as $DTD_ID => $spaces) { |
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// subtract the qty of selected tickets from each datetime's available spaces this ticket has access to, |
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$this->available_spaces['datetimes'][ $DTD_ID ] -= $qty; |
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} |
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} |
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} |
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/** |
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* @param EE_Ticket $ticket |
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* @param $qty |
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* @param int $total_ticket_count |
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* @throws EE_Error |
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* @throws InvalidArgumentException |
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* @throws InvalidDataTypeException |
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* @throws InvalidInterfaceException |
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*/ |
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public function processAvailabilityError(EE_Ticket $ticket, $qty, $total_ticket_count = 1) |
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{ |
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// tickets can not be purchased but let's find the exact number left |
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// for the last ticket selected PRIOR to subtracting tickets |
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$available_spaces = $this->ticketDatetimeAvailability($ticket, true); |
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// greedy greedy greedy eh? |
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if ($available_spaces > 0) { |
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if ( |
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apply_filters( |
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'FHEE__EE_Ticket_Selector___add_ticket_to_cart__allow_display_availability_error', |
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true, |
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$ticket, |
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$qty, |
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$available_spaces |
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) |
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) { |
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$this->availabilityError( |
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$available_spaces, |
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$total_ticket_count |
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); |
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} |
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} else { |
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EE_Error::add_error( |
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esc_html__( |
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'We\'re sorry, but there are no available spaces left for this event at this particular date and time.', |
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'event_espresso' |
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), |
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__FILE__, __FUNCTION__, __LINE__ |
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); |
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} |
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} |
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/** |
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* @param int $available_spaces |
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* @param int $total_ticket_count |
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*/ |
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private function availabilityError($available_spaces = 1, $total_ticket_count = 1) |
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{ |
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// add error messaging - we're using the _n function that will generate |
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// the appropriate singular or plural message based on the number of $available_spaces |
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if ($total_ticket_count) { |
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$msg = sprintf( |
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esc_html( |
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_n( |
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'We\'re sorry, but there is only %1$s available space left for this event at this particular date and time. Please select a different number (or different combination) of tickets by cancelling the current selection and choosing again, or proceed to registration.', |
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'We\'re sorry, but there are only %1$s available spaces left for this event at this particular date and time. Please select a different number (or different combination) of tickets by cancelling the current selection and choosing again, or proceed to registration.', |
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$available_spaces, |
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'event_espresso' |
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) |
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), |
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$available_spaces, |
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'<br />' |
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); |
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} else { |
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$msg = sprintf( |
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esc_html( |
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_n( |
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'We\'re sorry, but there is only %1$s available space left for this event at this particular date and time. Please select a different number (or different combination) of tickets.', |
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'We\'re sorry, but there are only %1$s available spaces left for this event at this particular date and time. Please select a different number (or different combination) of tickets.', |
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$available_spaces, |
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'event_espresso' |
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) |
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), |
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$available_spaces, |
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'<br />' |
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); |
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} |
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EE_Error::add_error($msg, __FILE__, __FUNCTION__, __LINE__); |
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} |
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} |
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eventespresso /
event-espresso-core
