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<?php |
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/** |
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* This class provides a bunch of Meta Objects |
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* that do not interact with the object at hand, but rather with the datalist as a whole. |
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* |
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*/ |
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class OrderProcessQueue extends DataObject |
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{ |
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private static $db = array( |
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'DeferTimeInSeconds' => 'Int', |
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'InProcess' => 'Boolean' |
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); |
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private static $has_one = array( |
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'Order' => 'Order', |
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'OrderStep' => 'OrderStep' |
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); |
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private static $indexes = array( |
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'OrderID' => array( |
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'type' => 'unique', |
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'value' => '"OrderID"' |
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), |
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'Created' => true, |
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'DeferTimeInSeconds' => true |
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); |
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private static $casting = array( |
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'ToBeProcessedAt' => 'SS_Datetime' |
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); |
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private static $default_sort = array( |
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'Created' => 'DESC' |
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); |
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/** |
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* standard SS variable. |
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* |
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* @var array |
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*/ |
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private static $summary_fields = array( |
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'Order.Title' => 'Order', |
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'Order.Status.Title' => 'Current Step', |
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'ToBeProcessedAt.Nice' => 'To be processed at', |
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'ToBeProcessedAt.Ago' => 'That is ...', |
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'InProcess.Nice' => 'Currently Running' |
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); |
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/** |
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* standard SS variable. |
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* |
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* @var array |
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*/ |
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private static $searchable_fields = array( |
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'OrderID' => array( |
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'field' => 'NumericField', |
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'title' => 'Order Number', |
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) |
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); |
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/** |
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* Standard SS method. |
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* |
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* @param Member $member |
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* |
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* @return bool |
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*/ |
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public function canCreate($member = null) |
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{ |
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return false; |
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} |
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/** |
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* Standard SS method. |
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* |
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* @param Member $member |
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* |
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* @return bool |
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*/ |
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public function canView($member = null) |
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{ |
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if (! $member) { |
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$member = Member::currentUser(); |
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} |
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$extended = $this->extendedCan(__FUNCTION__, $member); |
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if ($extended !== null) { |
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return $extended; |
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} |
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if (Permission::checkMember($member, Config::inst()->get('EcommerceRole', 'admin_permission_code'))) { |
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return true; |
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} |
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//is the member is a shop assistant they can always view it |
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if (EcommerceRole::current_member_is_shop_assistant($member)) { |
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return true; |
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} |
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return parent::canView($member); |
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} |
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/** |
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* Standard SS method. |
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* |
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* @param Member $member |
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* |
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* @return bool |
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*/ |
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public function canEdit($member = null) |
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{ |
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return false; |
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} |
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/** |
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* Standard SS method |
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* Queues can be deleted if needed. |
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* |
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* @param Member $member |
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* |
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* @return bool |
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*/ |
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public function canDelete($member = null) |
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{ |
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return parent::canDelete($member); |
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} |
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/** |
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* standard SS variable. |
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* |
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* @var string |
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*/ |
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private static $singular_name = 'Order To Be Processed'; |
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public function i18n_singular_name() |
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{ |
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return _t('OrderProcessQueue.SINGULAR_NAME', 'Order In Queue'); |
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} |
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/** |
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* standard SS variable. |
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* |
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* @var string |
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*/ |
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private static $plural_name = 'Orders to be Processed'; |
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public function i18n_plural_name() |
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{ |
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return _t('OrderProcessQueue.PLURAL_NAME', 'Orders In Queue'); |
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} |
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/** |
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* META METHOD: Add an order to the job list. |
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* If the order already exists, it will update the seconds and the creation time. |
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* |
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* @param Order $order |
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* @param Int $deferInSeconds |
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*/ |
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public function AddOrderToQueue($order, $deferTimeInSeconds) |
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{ |
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$filter = array('OrderID' => $order->ID); |
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$existingEntry = OrderProcessQueue::get()->filter($filter)->first(); |
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$filter['Created'] = SS_Datetime::now()->Rfc2822(); |
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$filter['DeferTimeInSeconds'] = $deferTimeInSeconds; |
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if (! $existingEntry) { |
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$existingEntry = OrderProcessQueue::create($filter); |
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$existingEntry->OrderStepID = $order->StatusID; |
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} else { |
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foreach ($filter as $field => $value) { |
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$existingEntry->$field = $value; |
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} |
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} |
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$existingEntry->write(); |
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return $existingEntry; |
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} |
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/** |
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* META METHOD |
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* processes the order ... |
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* returns TRUE if SUCCESSFUL and FALSE if it did not run for any reason ... |
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* |
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* |
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* @param Order $order optional |
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* @return boolean |
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*/ |
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public function process($order = null) |
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{ |
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//find variables |
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if( ! $order) { |
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$order = $this->Order(); |
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$myQueueObject = $this; |
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} else { |
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$myQueueObject = $this->getQueueObject($order); |
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} |
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//delete if order is gone ... |
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if(! $order) { |
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$myQueueObject->delete(); |
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} |
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//if order has moved already ... delete |
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if( |
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$this->OrderStepID > 0 |
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&& (int)$order->StatusID !== (int)$this->OrderStepID |
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) { |
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$myQueueObject->delete(); |
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} |
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if($order && $myQueueObject) { |
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if ($myQueueObject->isReadyToGo()) { |
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$oldOrderStatusID = $order->StatusID; |
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$myQueueObject->InProcess = true; |
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$myQueueObject->write(); |
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$order->tryToFinaliseOrder( |
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$tryAgain = false, |
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$fromOrderQueue = true |
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); |
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$newOrderStatusID = $order->StatusID; |
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if($oldOrderStatusID != $newOrderStatusID) { |
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$myQueueObject->delete(); |
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return true; |
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} else { |
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$myQueueObject->InProcess = false; |
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$myQueueObject->write(); |
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} |
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} |
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} |
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return false; |
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} |
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/** |
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* META METHOD: returns the queue object if it exists |
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* |
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* @param Order $order |
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* |
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* @return null | OrderProcessQueue |
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*/ |
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public function getQueueObject($order) |
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{ |
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$filter = array('OrderID' => $order->ID); |
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return OrderProcessQueue::get()->filter($filter)->first(); |
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} |
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/** |
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* META METHOD: Once you are done, you can remove the item like this ... |
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* |
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* @param Order $order |
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*/ |
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public function removeOrderFromQueue($order) |
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{ |
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$queueEntries = OrderProcessQueue::get()->filter(array('OrderID' => $order->ID)); |
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foreach($queueEntries as $queueEntry) { |
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$queueEntry->delete(); |
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} |
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} |
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/** |
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* META METHOD: returns a list of orders to be processed |
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* @param int $id force this Order to be processed |
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* @param int $limit total number of orders that can be retrieved at any one time |
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* |
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* @return DataList (of orders) |
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*/ |
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public function OrdersToBeProcessed($id = 0, $limit = 9999) |
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{ |
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//we sort the order randomly so that we get a nice mixture |
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//not always the same ones holding up the process |
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$sql = ' |
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SELECT "OrderID" |
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FROM "OrderProcessQueue" |
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WHERE |
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"InProcess" = 0 |
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AND |
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(UNIX_TIMESTAMP("Created") + "DeferTimeInSeconds") < '.time().' |
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ORDER BY RAND() DESC |
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LIMIT '.$limit.'; |
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'; |
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$rows = DB::query($sql); |
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$orderIDs = array($id => $id); |
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foreach ($rows as $row) { |
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$orderIDs[$row['OrderID']] = $row['OrderID']; |
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} |
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return Order::get() |
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->filter(array('ID' => $orderIDs)) |
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->sort('RAND()'); |
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} |
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/** |
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* META METHOD: all orders with a queue object |
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* @param int $id force this Order to be processed |
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* @param int $limit total number of orders that can be retrieved at any one time |
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* |
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* @return DataList (of orders) |
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*/ |
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public function AllOrdersInQueue($limit = 9999) |
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{ |
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return Order::get() |
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->filter(array('ID' => OrderProcessQueue::get()->column('OrderID'))) |
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->sort('RAND()') |
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->limit($limit); |
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} |
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/** |
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* META METHOD: returns a list of orders NOT YET to be processed |
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* @param int $limit total number of orders that can be retrieved at any one time |
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* |
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* @return DataList (of orders) |
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*/ |
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public function OrdersInQueueThatAreNotReady($limit = 9999) |
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{ |
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//we sort the order randomly so that we get a nice mixture |
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//not always the same ones holding up the process |
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$sql = ' |
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SELECT "OrderID" |
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FROM "OrderProcessQueue" |
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WHERE |
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(UNIX_TIMESTAMP("Created") + "DeferTimeInSeconds") >= '.time().' |
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ORDER BY RAND() DESC |
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LIMIT '.$limit.'; |
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'; |
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$rows = DB::query($sql); |
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$orderIDs = array(0 => 0); |
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foreach ($rows as $row) { |
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$orderIDs[$row['OrderID']] = $row['OrderID']; |
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} |
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return Order::get() |
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->filter(array('ID' => $orderIDs)) |
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->sort('RAND()'); |
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} |
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/** |
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* non-database method of working out if an Order is ready to go. |
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* |
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* @return bool |
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*/ |
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public function isReadyToGo() |
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{ |
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return (strtotime($this->Created) + $this->DeferTimeInSeconds) < time(); |
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} |
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/** |
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* |
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* casted variable |
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* @return SS_DateTime |
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*/ |
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public function ToBeProcessedAt() |
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{ |
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return $this->getToBeProcessedAt(); |
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} |
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/** |
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* |
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* casted variable |
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* @return SS_DateTime |
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*/ |
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public function getToBeProcessedAt() |
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{ |
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return DBField::create_field('SS_Datetime', (strtotime($this->Created) + $this->DeferTimeInSeconds)); |
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} |
363
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364
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365
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/** |
366
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* CMS Fields |
367
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* @return FieldList |
368
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*/ |
369
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public function getCMSFields() |
370
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{ |
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$fields = parent::getCMSFields(); |
372
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if($this->exists()) { |
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$fields->addFieldToTab( |
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'Root.Main', |
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ReadonlyField::create( |
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'ToBeProcessedAtCompilations', |
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_t('OrderProcessQueue.TO_BE_PROCESSED', 'To Be Processed'), |
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$this->ToBeProcessedAt->Nice() . ' - ' . $this->getToBeProcessedAt()->Ago() |
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|
379
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), |
380
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|
'InProcess' |
381
|
|
|
); |
382
|
|
|
$fields->addFieldToTab( |
383
|
|
|
'Root.Main', |
384
|
|
|
LiteralField::create( |
385
|
|
|
'processQueueNow', |
386
|
|
|
'<h2> |
387
|
|
|
<a href="/dev/tasks/EcommerceTaskProcessOrderQueue/?id='.$this->OrderID.'" target="_blank">'. |
|
|
|
|
388
|
|
|
_t('OrderProcessQueue.PROCESS', 'Process now'). |
389
|
|
|
'</a> |
390
|
|
|
</h2>' |
391
|
|
|
) |
392
|
|
|
); |
393
|
|
|
$fields->replaceField( |
394
|
|
|
'OrderID', |
395
|
|
|
CMSEditLinkField::create( |
396
|
|
|
'OrderID', |
397
|
|
|
'Order', |
398
|
|
|
$this->Order() |
|
|
|
|
399
|
|
|
) |
400
|
|
|
); |
401
|
|
|
} |
402
|
|
|
return $fields; |
403
|
|
|
} |
404
|
|
|
|
405
|
|
|
public function requireDefaultRecords() |
406
|
|
|
{ |
407
|
|
|
parent::requireDefaultRecords(); |
408
|
|
|
$errors = OrderProcessQueue::get()->filter(array('OrderID' => 0)); |
409
|
|
|
foreach($errors as $error) { |
410
|
|
|
DB::alteration_message(' DELETING ROGUE OrderProcessQueue', 'deleted'); |
411
|
|
|
$error->delete(); |
412
|
|
|
} |
413
|
|
|
} |
414
|
|
|
|
415
|
|
|
} |
416
|
|
|
|
You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.