mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
269 lines
7.4 KiB
PHP
269 lines
7.4 KiB
PHP
<?php
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namespace SilverStripe\Admin;
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use SilverStripe\Framework\Core\Injectable;
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use SilverStripe\ORM\Versioning\ChangeSet;
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use SilverStripe\ORM\DataObject;
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use SilverStripe\ORM\Versioning\ChangeSetItem;
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use ClassInfo;
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use Object;
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use DropdownField;
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use FieldList;
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use HiddenField;
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use Form;
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use CompositeField;
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use LiteralField;
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use Director;
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use SS_HTTPResponse;
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use FormAction;
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/**
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* Class AddToCampaignHandler - handle the AddToCampaign action.
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*
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* This is a class designed to be delegated to by a Form action handler method in the EditForm of a LeftAndMain
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* child class.
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*
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* Add To Campaign can be seen as an item action like "publish" or "rollback", but unlike those actions
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* it needs one additional piece of information to execute, the ChangeSet ID.
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*
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* So this handler does one of two things to respond to the action request, depending on whether the ChangeSet ID
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* was included in the submitted data
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* - If it was, perform the Add To Campaign action (as per any other action)
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* - If it wasn't, return a form to get the ChangeSet ID and then repeat this action submission
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*
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* To use, you'd add an action to your LeftAndMain subclass, like this:
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*
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* function addtocampaign($data, $form) {
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* $handler = AddToCampaignHandler::create($form, $data);
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* return $handler->handle();
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* }
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*
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* and add an AddToCampaignHandler_FormAction to the EditForm, possibly through getCMSActions
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*/
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class AddToCampaignHandler {
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use Injectable;
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/**
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* The EditForm that contains the action we're being delegated to from
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*
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* @var Form
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*/
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protected $editForm;
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/**
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* The submitted form data
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*
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* @var array
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*/
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protected $data;
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/**
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* AddToCampaignHandler constructor.
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*
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* @param Form $editForm The parent form that triggered this action
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* @param array $data The data submitted as part of that form
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*/
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public function __construct($editForm, $data) {
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$this->editForm = $editForm;
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$this->data = $data;
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}
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/**
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* Perform the action. Either returns a Form or performs the action, as per the class doc
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*
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* @return DBHTMLText|SS_HTTPResponse
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*/
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public function handle() {
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$object = $this->getObject($this->data['ID'], $this->data['ClassName']);
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if (empty($this->data['Campaign'])) {
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return $this->Form($object)->forTemplate();
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} else {
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return $this->addToCampaign($object, $this->data['Campaign']);
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}
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}
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/**
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* Get what ChangeSets are available for an item to be added to by this user
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*
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* @return ArrayList[ChangeSet]
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*/
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protected function getAvailableChangeSets() {
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return ChangeSet::get()
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->filter('State', ChangeSet::STATE_OPEN)
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->filterByCallback(function($item) {
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/** @var ChangeSet $item */
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return $item->canView();
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});
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}
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/**
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* Safely get a DataObject from a client-supplied ID and ClassName, checking: argument
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* validity; existence; and canView permissions.
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*
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* @param int $id The ID of the DataObject
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* @param string $class The Class of the DataObject
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* @return DataObject The referenced DataObject
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* @throws SS_HTTPResponse_Exception
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*/
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protected function getObject($id, $class) {
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$id = (int)$id;
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$class = ClassInfo::class_name($class);
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if (!$class || !is_subclass_of($class, 'SilverStripe\\ORM\\DataObject') || !Object::has_extension($class, 'SilverStripe\\ORM\\Versioning\\Versioned')) {
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$this->editForm->httpError(400, _t(
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'AddToCampaign.ErrorGeneral',
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'We apologise, but there was an error'
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));
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return null;
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}
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$object = DataObject::get($class)->byID($id);
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if (!$object) {
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$this->editForm->httpError(404, _t(
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'AddToCampaign.ErrorNotFound',
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'That {Type} couldn\'t be found',
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'',
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['Type' => $class]
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));
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return null;
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}
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if (!$object->canView()) {
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$this->editForm->httpError(403, _t(
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'AddToCampaign.ErrorItemPermissionDenied',
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'It seems you don\'t have the necessary permissions to add {ObjectTitle} to a campaign',
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'',
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['ObjectTitle' => $object->Title]
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)
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);
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return null;
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}
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return $object;
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}
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/**
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* Builds a Form that mirrors the parent editForm, but with an extra field to collect the ChangeSet ID
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*
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* @param DataObject $object The object we're going to be adding to whichever ChangeSet is chosen
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* @return Form
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*/
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public function Form($object) {
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$inChangeSets = array_unique(ChangeSetItem::get_for_object($object)->column('ChangeSetID'));
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$changeSets = $this->getAvailableChangeSets()->map();
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$campaignDropdown = DropdownField::create('Campaign', '', $changeSets);
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$campaignDropdown->setEmptyString(_t('Campaigns.AddToCampaign', 'Select a Campaign'));
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$campaignDropdown->addExtraClass('noborder');
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$campaignDropdown->setDisabledItems($inChangeSets);
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$fields = new FieldList([
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$campaignDropdown,
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HiddenField::create('ID', null, $this->data['ID']),
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HiddenField::create('ClassName', null, $this->data['ClassName'])
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]);
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$form = new Form(
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$this->editForm->getController(),
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$this->editForm->getName(),
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new FieldList(
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$header = new CompositeField(
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new LiteralField(
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'Heading',
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sprintf('<h3>%s</h3>', _t('Campaigns.AddToCampaign', 'Add To Campaign'))
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)
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),
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$content = new CompositeField($fields)
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),
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new FieldList(
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$action = AddToCampaignHandler_FormAction::create()
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)
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);
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$header->addExtraClass('add-to-campaign__header');
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$content->addExtraClass('add-to-campaign__content');
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$action->addExtraClass('add-to-campaign__action');
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$form->setHTMLID('Form_EditForm_AddToCampaign');
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$form->unsetValidator();
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$form->loadDataFrom($this->data);
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$form->addExtraClass('add-to-campaign__form');
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return $form;
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}
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/**
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* Performs the actual action of adding the object to the ChangeSet, once the ChangeSet ID is known
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*
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* @param DataObject $object The object to add to the ChangeSet
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* @param int $campaignID The ID of the ChangeSet to add $object to
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* @return SS_HTTPResponse
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* @throws SS_HTTPResponse_Exception
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*/
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public function addToCampaign($object, $campaignID) {
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/** @var ChangeSet $changeSet */
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$changeSet = ChangeSet::get()->byID($campaignID);
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if (!$changeSet) {
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$this->editForm->httpError(404, _t(
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'AddToCampaign.ErrorNotFound',
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'That {Type} couldn\'t be found',
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'',
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['Type' => 'Campaign']
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));
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return null;
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}
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if (!$changeSet->canEdit()) {
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$this->editForm->httpError(403, _t(
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'AddToCampaign.ErrorCampaignPermissionDenied',
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'It seems you don\'t have the necessary permissions to add {ObjectTitle} to {CampaignTitle}',
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'',
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['ObjectTitle' => $object->Title, 'CampaignTitle' => $changeSet->Title]
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));
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return null;
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}
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$changeSet->addObject($object);
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if (Director::is_ajax()) {
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$response = new SS_HTTPResponse(_t(
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'AddToCampaign.Success',
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'Successfully added {ObjectTitle} to {CampaignTitle}',
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'',
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['ObjectTitle' => $object->Title, 'CampaignTitle' => $changeSet->Title]
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), 200);
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$response->addHeader('Content-Type', 'text/plain; charset=utf-8');
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return $response;
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} else {
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return $this->editForm->getController()->redirectBack();
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}
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}
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}
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/**
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* A form action to return from geCMSActions or otherwise include in a CMS Edit Form that
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* has the right action name and CSS classes to trigger the AddToCampaignHandler.
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*
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* See SiteTree.php and CMSMain.php for an example of it's use
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*/
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class AddToCampaignHandler_FormAction extends FormAction {
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function __construct() {
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parent::__construct('addtocampaign', _t('CAMPAIGNS.ADDTOCAMPAIGN', 'Add to campaign'));
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$this->addExtraClass('add-to-campaign-action');
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$this->setValidationExempt(true);
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}
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}
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