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<?php |
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namespace Dynamic\Foxy\Inventory\Extension; |
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use Dynamic\Foxy\Inventory\Model\CartReservation; |
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use Dynamic\Foxy\Orders\Model\OrderDetail; |
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use SilverStripe\Forms\CheckboxField; |
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use SilverStripe\Forms\FieldList; |
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use SilverStripe\Forms\NumericField; |
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use SilverStripe\Forms\ReadonlyField; |
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use SilverStripe\ORM\ArrayList; |
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use SilverStripe\ORM\DataExtension; |
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use SilverStripe\ORM\DataList; |
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use SilverStripe\ORM\ValidationResult; |
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use UncleCheese\DisplayLogic\Forms\Wrapper; |
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class ProductInventoryManager extends DataExtension |
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{ |
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/** |
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* @var array |
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*/ |
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private static $db = [ |
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'ControlInventory' => 'Boolean', |
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'PurchaseLimit' => 'Int', |
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]; |
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/** |
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* @param FieldList $fields |
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*/ |
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public function updateCMSFields(FieldList $fields) |
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{ |
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$fields->removeByName([ |
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'ControlInventory', |
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'PurchaseLimit', |
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'EmbargoLimit', |
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'NumberPurchased', |
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]); |
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$fields->addFieldsToTab('Root.Inventory', [ |
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Wrapper::create( |
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CheckboxField::create('ControlInventory', 'Control Inventory?') |
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->setDescription('limit the number of this product available for purchase'), |
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Wrapper::create( |
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NumericField::create('PurchaseLimit') |
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->setTitle('Number Available') |
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->setDescription('add to cart form will be disabled once number available equals purchased'), |
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ReadonlyField::create('NumberAvailable', 'Remaining Available', $this->getNumberAvailable()) |
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->setDescription('This takes into account products added to the cart. Products removed from the cart may persist in the "Cart Reservations" until the expiration time.')//, |
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)->displayIf('ControlInventory')->isChecked()->end() |
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)->displayIf('Available')->isChecked()->end(), |
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]); |
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} |
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/** |
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* @param ValidationResult $validationResult |
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* @throws \SilverStripe\ORM\ValidationException |
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*/ |
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public function validate(ValidationResult $validationResult) |
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{ |
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parent::validate($validationResult); |
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if ($this->owner->ControlInventory && $this->owner->PurchaseLimit == 0) { |
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$validationResult->addFieldError('PurchaseLimit', 'You must specify a purchase limit more than 0'); |
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} |
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} |
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/** |
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* @param $available |
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*/ |
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public function updateGetIsAvailable(&$available) |
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{ |
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if ($this->owner->Variations()->count()) { |
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foreach ($this->owner->Variations() as $variation) { |
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$available = false; |
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if ($variation->getIsAvailable()) { |
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$available = true; |
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} |
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} |
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} elseif ($this->getHasInventory()) { |
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$available = $this->getIsProductAvailable(); |
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} |
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} |
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/** |
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* @return bool |
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*/ |
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public function getHasInventory() |
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{ |
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return $this->owner->ControlInventory && $this->owner->PurchaseLimit != 0; |
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} |
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/** |
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* @return bool |
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*/ |
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public function getIsProductAvailable() |
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{ |
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if ($this->owner->getHasInventory()) { |
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return $this->getNumberAvailable() > 0; |
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} |
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return true; |
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} |
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/** |
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* @return int|void |
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*/ |
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public function getNumberAvailable() |
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{ |
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return (int)$this->owner->PurchaseLimit - (int)$this->getNumberPurchased() - (int)$this->getCartReservations()->count(); |
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} |
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/** |
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* @return int |
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*/ |
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public function getNumberPurchased() |
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{ |
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$ct = 0; |
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if ($this->getOrders()) { |
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foreach ($this->getOrders() as $order) { |
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$ct += $order->Quantity; |
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} |
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} |
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return $ct; |
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} |
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/** |
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* @return DataList|bool |
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*/ |
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public function getOrders() |
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{ |
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if ($this->owner->ID) { |
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$orderDetails = OrderDetail::get()->filter('ProductID', $this->owner->ID); |
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$orders = ArrayList::create(); |
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foreach ($orderDetails as $orderDetail) { |
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$hasVariation = false; |
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foreach ($orderDetail->OrderVariations() as $variation) { |
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if ($variation->VariationID > 0) { |
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$hasVariation = true; |
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} |
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} |
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if (!$hasVariation) { |
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$orders->push($orderDetail); |
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} |
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} |
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return $orders; |
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} |
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return false; |
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} |
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/** |
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* @return DataList |
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*/ |
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public function getCartReservations() |
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{ |
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return CartReservation::get() |
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->filter([ |
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'ProductID' => $this->owner->ID, |
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'Expires:GreaterThan' => date('Y-m-d H:i:s', strtotime('now')), |
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]); |
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} |
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} |
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dynamic /
silverstripe-foxy-inventory
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