511 lines
15 KiB
Text
511 lines
15 KiB
Text
<?php namespace ProcessWire;
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/**
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* ProcessWire Page Clone Process
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*
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* For more details about how Process modules work, please see:
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* /wire/core/Process.php
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*
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* ProcessWire 3.x, Copyright 2022 by Ryan Cramer
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* https://processwire.com
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*
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* Optional GET variables:
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* - redirect_page (int): Contains ID of page to redirect to after clone.
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*
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* @method InputfieldForm buildForm()
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* @method string render()
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* @method void process()
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*
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*/
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class ProcessPageClone extends Process {
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public static function getModuleInfo() {
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return array(
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'title' => __('Page Clone', __FILE__),
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'summary' => __('Provides ability to clone/copy/duplicate pages in the admin. Adds a "copy" option to all applicable pages in the PageList.', __FILE__),
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'version' => 104,
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'autoload' => "template=admin", // Note: most Process modules should not be 'autoload', this is an exception.
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'permission' => 'page-clone',
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'permissions' => array(
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'page-clone' => 'Clone a page',
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'page-clone-tree' => 'Clone a tree of pages'
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),
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'page' => array(
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'name' => 'clone',
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'title' => 'Clone',
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'parent' => 'page',
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'status' => Page::statusHidden,
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)
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);
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}
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/**
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* The page being cloned
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*
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* @var Page|null
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*
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*/
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protected $page;
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/**
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* The action link label used in the PageList
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*
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* Redefined for mult-language support in the ready method.
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*
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*/
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protected $pageListActionLabel = 'Copy';
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/**
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* URL to the admin, cached here to avoid repeat $config calls
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*
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*/
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protected $adminUrl = '';
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/**
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* Called when the API and $page loaded are ready
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*
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* We use this to determine whether we should add a hook or not.
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* If we're in ProcessPageList, we add the hook.
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*
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*/
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public function ready() {
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$this->adminUrl = $this->wire()->config->urls->admin;
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$this->pageListActionLabel = $this->_('Copy'); // Action label that appears in PageList
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$this->addHookAfter("ProcessPageListActions::getExtraActions", $this, 'hookPageListActions');
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$this->addHookAfter("ProcessPageListActions::processAction", $this, 'hookProcessExtraAction');
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}
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/**
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* Hook into ProcessPageListActions::getExtraActions to return a 'copy' action when appropriate
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*
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* @param HookEvent $event
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*
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*/
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public function hookPageListActions(HookEvent $event) {
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$page = $event->arguments[0];
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$actions = array();
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if($this->hasPermission($page)) {
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$actions['copy'] = array(
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'cn' => 'Copy',
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'name' => $this->pageListActionLabel,
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'url' => "{$this->adminUrl}page/clone/?id={$page->id}",
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);
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if(!$page->numChildren) {
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$actions['copy']['url'] = "{$this->adminUrl}page/?action=clone&id={$page->id}";
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$actions['copy']['ajax'] = true;
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}
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}
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if(count($actions)) $event->return = $actions + $event->return;
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}
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/**
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* Hook to ProcessPageListActions::processAction()
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*
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* @param HookEvent $event
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*
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*/
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public function hookProcessExtraAction(HookEvent $event) {
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$page = $event->arguments(0);
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$action = $event->arguments(1);
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if($action !== 'clone') return;
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$result = $this->processAjax($page, true);
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if(!empty($result['page'])) $result['appendItem'] = $result['page'];
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$event->return = $result;
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}
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/**
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* Main execution: Display Copy Page form or process it
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*
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*/
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public function ___execute() {
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$input = $this->wire()->input;
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$this->headline($this->_('Copy Page')); // Headline
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$error = $this->_("Unable to load page");
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$id = (int) $input->get('id');
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if($id < 2) throw new WireException($error);
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$this->page = $this->wire()->pages->get($id);
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if($this->page->id < 2) throw new WireException($error);
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if(!$this->hasPermission($this->page)) throw new WirePermissionException($error);
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if($input->post('submit_clone')) $this->process();
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return $this->render();
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}
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/**
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* Check if the current user has permission to clone the given page
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*
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* @param Page $page
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* @return bool
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*
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*/
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public function hasPermission(Page $page) {
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$user = $this->user;
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$parent = $page->parent();
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$parentTemplate = $parent->template;
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$pageTemplate = $page->template;
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if(!$parentTemplate) return false;
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if($page->hasStatus(Page::statusSystem) || $page->hasStatus(Page::statusSystemID)) return false;
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if($parentTemplate->noChildren) return false;
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if($pageTemplate->noParents) return false;
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if(count($parentTemplate->childTemplates) && !in_array($pageTemplate->id, $parentTemplate->childTemplates)) return false;
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if(count($pageTemplate->parentTemplates) && !in_array($parentTemplate->id, $pageTemplate->parentTemplates)) return false;
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if($user->isSuperuser()) return true;
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if($user->hasPermission('page-create', $page) && $user->hasPermission('page-clone', $page) && $parent->addable()) return true;
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return false;
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}
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/**
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* Return array with suggested 'name' and 'title' elements for given $page
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*
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* @param Page $page
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* @return array
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*
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*/
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protected function getSuggestedNameAndTitle(Page $page) {
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$pages = $this->wire()->pages;
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$name = $pages->names()->uniquePageName(array(
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'name' => $page->name,
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'parent' => $page->parent()
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));
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$copy = $this->_('(copy)');
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$copyN = $this->_('(copy %d)');
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$title = $page->title;
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$n = (int) $pages->names()->hasNumberSuffix($name);
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if(strpos($title, $copy) !== false) $title = str_replace(" $copy", '', $title);
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$regexCopyN = str_replace('%d', '[0-9]+', $copyN);
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$regexCopyN = str_replace(array('(', ')'), array('\\(', '\\)'), $regexCopyN);
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$title = preg_replace("/$regexCopyN/", '', $title);
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$title .= ' ' . ($n > 1 ? sprintf($copyN, $n) : $copy);
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$result = array(
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'name' => $name,
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'title' => $title,
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'n' => $n
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);
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$languages = $this->wire()->languages;
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if($languages && $languages->hasPageNames()) {
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foreach($languages as $language) {
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/** @var Language $language */
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if($language->isDefault()) continue;
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$value = $page->get("name$language");
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if(!strlen("$value")) continue;
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$result["name$language"] = $pages->names()->incrementName($value, $n);
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}
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}
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return $result;
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}
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/**
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* Render a form asking for information to be used for the new cloned page.
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*
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* @return InputfieldForm
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*
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*/
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protected function ___buildForm() {
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$page = $this->page;
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$modules = $this->wire()->modules;
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/** @var InputfieldForm $form */
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$form = $modules->get("InputfieldForm");
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$form->attr('action', './?id=' . $page->id);
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$form->attr('method', 'post');
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$form->description = sprintf($this->_("This will make a copy of %s"), $page->path); // Form description/headline
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$form->addClass('InputfieldFormFocusFirst');
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$suggested = $this->getSuggestedNameAndTitle($page);
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/** @var InputfieldPageTitle $titleField */
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$titleField = $modules->get("InputfieldPageTitle");
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$titleField->attr('name', 'clone_page_title');
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$titleField->attr('value', $suggested['title']);
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$titleField->label = $this->_("Title of new page"); // Label for title field
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/** @var InputfieldPageName $nameField */
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$nameField = $modules->get("InputfieldPageName");
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$nameField->attr('name', 'clone_page_name');
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$nameField->attr('value', $suggested['name']);
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$nameField->parentPage = $page->parent;
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$languages = $this->wire()->languages;
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$useLanguages = $languages;
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if($useLanguages) {
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/** @var Field $title */
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$title = $this->wire()->fields->get('title');
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$titleUseLanguages = $title
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&& $page->template->fieldgroup->hasField($title)
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&& $title->getInputfield($page)->getSetting('useLanguages');
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$nameUseLanguages = $languages->hasPageNames();
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if($titleUseLanguages) $titleField->useLanguages = true;
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if($nameUseLanguages) $nameField->useLanguages = true;
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foreach($languages as $language) {
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/** @var Language $language */
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if($language->isDefault()) continue;
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if($titleUseLanguages) {
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/** @var LanguagesPageFieldValue $pageTitle */
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$pageTitle = $page->title;
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$value = $pageTitle->getLanguageValue($language);
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$titleField->set("value$language->id", $value);
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}
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if($nameUseLanguages) {
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$value = $page->get("name$language->id");
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if(strlen($value)) {
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if(!empty($suggested["name$language"])) {
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$nameLang = $suggested["name$language"];
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} else {
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$nameLang = $value . '-' . $suggested['n'];
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}
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$nameField->set("value$language->id", $nameLang);
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}
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}
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}
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}
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if($page->template->fieldgroup->hasField('title')) $form->add($titleField);
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$form->add($nameField);
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/** @var InputfieldCheckbox $field */
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$field = $modules->get("InputfieldCheckbox");
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$field->attr('name', 'clone_page_unpublished');
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$field->attr('value', 1);
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$field->label = $this->_("Make the new page unpublished?");
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$field->collapsed = Inputfield::collapsedYes;
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$field->description = $this->_("If checked, the cloned page will be given an unpublished status so that it can't yet be seen on the front-end of your site.");
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$form->add($field);
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if($page->numChildren && $this->user->hasPermission('page-clone-tree', $page)) {
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/** @var InputfieldCheckbox $field */
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$field = $modules->get("InputfieldCheckbox");
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$field->attr('name', 'clone_page_tree');
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$field->attr('value', 1);
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$field->label = $this->_("Copy children too?");
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$field->description = $this->_("If checked, all children, grandchildren, etc., will also be cloned with this page.");
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$field->notes = $this->_("Warning: if there is a very large structure of pages below this, it may be time consuming or impossible to complete.");
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$field->collapsed = Inputfield::collapsedYes;
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$form->add($field);
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}
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/** @var InputfieldSubmit $field */
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$field = $modules->get("InputfieldSubmit");
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$field->attr('name', 'submit_clone');
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$form->add($field);
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$redirectPageID = (int) $this->wire()->input->get('redirect_page');
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if($redirectPageID) {
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/** @var InputfieldHidden $field */
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$field = $modules->get('InputfieldHidden');
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$field->attr('name', 'redirect_page');
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$field->attr('value', $redirectPageID);
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$form->add($field);
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}
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return $form;
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}
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/**
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* Render a form asking for information to be used for the new cloned page.
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*
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* @return string
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*
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*/
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protected function ___render() {
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$form = $this->buildForm();
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return $form->render();
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}
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/**
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* User has clicked submit, so we create the clone, then redirect to it in PageList
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*
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*/
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protected function ___process() {
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$page = clone $this->page;
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$input = $this->input;
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$languages = $this->wire()->languages;
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$originalName = $page->name;
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$this->session->CSRF->validate();
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$form = $this->buildForm();
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$form->processInput($input->post);
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$titleField = $form->get('clone_page_title');
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$nameField = $form->get('clone_page_name');
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$cloneTree = $input->post('clone_page_tree') && $this->user->hasPermission('page-clone-tree', $this->page);
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if($input->post('clone_page_unpublished')) {
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$page->addStatus(Page::statusUnpublished);
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}
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if($nameField->useLanguages && $languages) {
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foreach($languages as $language) {
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/** @var Language $language */
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$valueAttr = $language->isDefault() ? "value" : "value$language->id";
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$nameAttr = $language->isDefault() ? "name" : "name$language->id";
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$value = $nameField->get($valueAttr);
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$page->set($nameAttr, $value);
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}
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} else {
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$page->name = $nameField->attr('value');
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}
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set_time_limit(3600);
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$clone = $this->pages->clone($page, $page->parent, $cloneTree);
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if(!$clone->id) {
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throw new WireException(sprintf($this->_("Unable to clone page %s"), $page->path));
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}
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if($titleField->getSetting('useLanguages') && is_object($clone->title) && $languages) {
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foreach($languages as $language) {
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/** @var Language $language */
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$valueAttr = $language->isDefault() ? "value" : "value$language->id";
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$value = $titleField->get($valueAttr);
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/** @var LanguagesPageFieldValue $cloneTitle */
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$cloneTitle = $clone->title;
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$cloneTitle->setLanguageValue($language, $value);
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}
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} else {
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$clone->title = $titleField->value;
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}
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$this->wire()->pages->save($clone, array('adjustName' => true));
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$this->message(sprintf($this->_('Cloned page "%1$s" to "%2$s"'), $originalName, $clone->name));
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$redirectURL = null;
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$redirectID = (int) $input->post('redirect_page');
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if($redirectID) {
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$redirectPage = $this->wire()->pages->get($redirectID);
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if($redirectPage->viewable()) {
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$redirectURL = $redirectPage->url();
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}
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}
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if(!$redirectURL) {
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$redirectURL = $this->adminUrl . "page/list/";
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}
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$redirectURL .= "?open=$clone->id";
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$this->session->redirect($redirectURL);
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}
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/**
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* Process an ajax clone request
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*
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* Outputs JSON result and exits
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*
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* @param Page $original
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* @param bool $returnArray
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* @return array|null
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*
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*/
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public function processAjax(Page $original = null, $returnArray = false) {
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$error = null;
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if($original === null) $original = $this->page;
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if($this->hasPermission($original)) {
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$clone = $this->cloneAjax($original, $error);
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} else {
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$clone = new NullPage();
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}
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$result = array(
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'action' => 'clone',
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'success' => $clone->id > 0 && $clone->id != $original->id && empty($error),
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'message' => '',
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'page' => $clone->id,
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);
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if($clone->id) {
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$result['message'] = $this->wire()->sanitizer->unentities(
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sprintf($this->_('Cloned to: %s'), $clone->path)
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);
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} else {
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// error
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$result['message'] = $error ? $error : $this->_('Unable to clone page');
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}
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if($returnArray) return $result;
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header("Content-type: application/json");
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echo json_encode($result);
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exit;
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}
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/**
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* Perform a clone during ajax request
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*
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* @param Page $original Page to clone
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* @param string $error Variable to populate error message in
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* @return Page|NullPage
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*
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*/
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protected function cloneAjax(Page $original, &$error) {
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$page = clone $original;
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$suggested = $this->getSuggestedNameAndTitle($page);
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$cloneOptions = array(
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'set' => array(
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// keep original $page modified date and user id, since ajax mode doesn't
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// give the user the option to edit the page before cloning it
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'modified' => $original->modified,
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'modified_users_id' => $original->modified_users_id,
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// pages cloned in ajax are always unpublished
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'status' => $page->status | Page::statusUnpublished,
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'title' => $suggested['title'],
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'name' => $suggested['name'],
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)
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);
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$languages = $this->wire()->languages;
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if($languages) {
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foreach($languages as $language) {
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/** @var Language $language */
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if($language->isDefault()) continue;
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if(!empty($suggested["name$language"])) {
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$cloneOptions['set']["name$language"] = $suggested["name$language"];
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}
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}
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}
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$cloneTree = false; // clone tree mode not allowed in ajax mode
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try {
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$clone = $this->wire()->pages->clone($page, $page->parent, $cloneTree, $cloneOptions);
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} catch(\Exception $e) {
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$error = $e->getMessage();
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$clone = new NullPage();
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}
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return $clone;
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}
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/**
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* Get Page being cloned
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*
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* @return null|Page
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*
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*/
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public function getPage() {
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return $this->page;
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}
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}
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