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<?php |
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namespace Dynamic\Collection; |
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use League\Flysystem\Exception; |
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use SilverStripe\Control\HTTPRequest; |
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use SilverStripe\Core\Extension; |
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use SilverStripe\Forms\DropdownField; |
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use SilverStripe\Forms\FieldList; |
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use SilverStripe\Forms\Form; |
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use SilverStripe\Forms\FormAction; |
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use SilverStripe\ORM\ArrayList; |
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use SilverStripe\ORM\DataList; |
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use SilverStripe\ORM\GroupedList; |
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use SilverStripe\ORM\PaginatedList; |
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class CollectionExtension extends Extension |
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{ |
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/** |
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* @var array |
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*/ |
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private static $allowed_actions = array( |
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'CollectionSearchForm', |
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); |
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/** |
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* @var DataList|ArrayList |
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*/ |
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private $collection; |
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/** |
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* @var |
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*/ |
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private $collection_object; |
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/** |
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* @return ArrayList|DataList |
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*/ |
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public function getCollection() |
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{ |
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if (!$this->collection) { |
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$this->setCollection($this->owner->request); |
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} |
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return $this->collection; |
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} |
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/** |
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* @param HTTPRequest|null $request |
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* @return $this |
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*/ |
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public function setCollection(HTTPRequest $request = null) |
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{ |
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if ($request === null) { |
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$request = $this->owner->request; |
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} |
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$searchCriteria = $request->requestVars(); |
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// allow $searchCriteria to be updated via extension |
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$this->owner->extend('updateCollectionFilters', $searchCriteria); |
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$object = $this->getCollectionObject(); |
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$context = ($object->hasMethod('getCustomSearchContext')) |
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? $object->getCustomSearchContext() |
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: $object->getDefaultSearchContext(); |
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$sort = ($request->getVar('Sort')) |
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? (string) $request->getVar('Sort') |
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: $object->config()->get('default_sort'); |
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// check if the sort has an order (ASC or DESC) |
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// prevents query errors when sorting on relations with an order ('Location.Title DESC') |
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// no order |
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if (strpos($sort, ' ') === false) { |
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$collection = $context->getResults($searchCriteria)->sort($sort); |
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// order is given |
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} else { |
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if (strpos($sort, ',') === false) { |
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$sortParts = explode(' ', $sort); |
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$collection = $context->getResults($searchCriteria)->sort($sortParts[0], $sortParts[1]); |
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} else { |
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// multiple orders are given |
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$sortParts = []; |
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$sortArgs = explode(',', $sort); |
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foreach ($sortArgs as $arg) { |
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$arg = trim($arg); |
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if (strpos($arg, ' ') === false) { |
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$sortParts[$arg] = 'ASC'; |
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} else { |
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$part = explode(' ', $arg); |
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$sortParts[$part[0]] = $part[1]; |
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} |
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} |
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$collection = $context->getResults($searchCriteria)->sort($sortParts); |
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} |
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} |
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// allow $collection to be updated via extension |
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$this->owner->extend('updateCollectionItems', $collection, $searchCriteria); |
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$this->collection = $collection; |
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return $this; |
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} |
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/** |
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* @return string|\SilverStripe\ORM\DataObject |
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*/ |
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public function getCollectionObject() |
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{ |
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if (!$this->collection_object) { |
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$this->setCollectionObject(); |
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} |
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return $this->collection_object; |
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} |
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/** |
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* @return $this |
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*/ |
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public function setCollectionObject() |
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{ |
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$this->owner->extend('updateCollectionObject', $this->collection_object); |
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if (!$this->collection_object) { |
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try { |
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/** @var \SilverStripe\ORM\DataObject $collection_object */ |
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$collection_object = $this->owner->config()->get('managed_object'); |
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$this->collection_object = $collection_object::create(); |
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} catch (Exception $e) { |
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trigger_error($e, E_USER_NOTICE); |
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} |
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} |
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return $this; |
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} |
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/** |
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* @return int |
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*/ |
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public function getCollectionSize() |
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{ |
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if ($object = $this->owner->config()->page_size) { |
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return (int) $object; |
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} |
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return 10; |
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} |
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/** |
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* @param HTTPRequest|null $request |
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* @return mixed |
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*/ |
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public function PaginatedList(HTTPRequest $request = null) |
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{ |
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if ($request === null) { |
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$request = $this->owner->request; |
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} |
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$start = ($request->getVar('start')) ? (int) $request->getVar('start') : 0; |
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$records = PaginatedList::create($this->getCollection(), $this->owner->request); |
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$records->setPageStart($start); |
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$records->setPageLength($this->getCollectionSize()); |
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// allow $records to be updated via extension |
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$this->owner->extend('updatePaginatedList', $records); |
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return $records; |
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} |
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/** |
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* @return GroupedList |
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*/ |
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public function GroupedList() |
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{ |
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$records = GroupedList::create($this->getCollection()); |
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// allow $records to be updated via extension |
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$this->owner->extend('updateGroupedList', $records); |
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return $records; |
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} |
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/** |
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* @return Form |
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*/ |
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public function CollectionSearchForm() |
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{ |
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$object = $this->getCollectionObject(); |
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/** @var HTTPRequest $request */ |
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$request = ($this->owner->request) ? $this->owner->request : $this->owner->parentController->getRequest(); |
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$sort = ($request->getVar('Sort')) ? (string) $request->getVar('Sort') : $object->config()->get('default_sort'); |
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$context = ($object->hasMethod('getCustomSearchContext')) |
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? $object->getCustomSearchContext() |
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: $object->getDefaultSearchContext(); |
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$fields = $context->getSearchFields(); |
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// add sort field if managed object specs getSortOptions() |
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if ($object->hasMethod('getSortOptions')) { |
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$sortOptions = $object->getSortOptions(); |
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if ($object->config()->get('default_sort')) { |
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$defaultSort = array(str_replace('"', '', $object->config()->get('default_sort')) => 'Default'); |
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$sortOptions = array_merge($defaultSort, $sortOptions); |
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} |
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$fields->add( |
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DropdownField::create('Sort', 'Sort by:', $sortOptions, $sort) |
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); |
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} |
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$actions = new FieldList( |
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new FormAction($this->owner->Link(), 'Search') |
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); |
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if (class_exists(BootstrapForm::class)) { |
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$form = BootstrapForm::create( |
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$this->owner, |
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'CollectionSearchForm', |
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$fields, |
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$actions |
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); |
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} else { |
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$form = Form::create( |
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$this->owner, |
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'CollectionSearchForm', |
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$fields, |
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$actions |
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); |
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} |
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// allow $form to be extended via extension |
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$this->owner->extend('updateCollectionForm', $form); |
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$form |
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->setFormMethod('get') |
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->disableSecurityToken() |
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->loadDataFrom($request->getVars()) |
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->setFormAction($this->owner->Link()); |
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return $form; |
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} |
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} |
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