384 lines
12 KiB
PHP
384 lines
12 KiB
PHP
<?php
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namespace BookStack\Entities\Repos;
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use BookStack\Activity\ActivityType;
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use BookStack\Entities\Models\Book;
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use BookStack\Entities\Models\Chapter;
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use BookStack\Entities\Models\Entity;
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use BookStack\Entities\Models\Page;
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use BookStack\Entities\Models\PageRevision;
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use BookStack\Entities\Tools\BookContents;
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use BookStack\Entities\Tools\PageContent;
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use BookStack\Entities\Tools\PageEditorData;
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use BookStack\Entities\Tools\TrashCan;
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use BookStack\Exceptions\MoveOperationException;
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use BookStack\Exceptions\NotFoundException;
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use BookStack\Exceptions\PermissionsException;
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use BookStack\Facades\Activity;
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use BookStack\References\ReferenceStore;
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use BookStack\References\ReferenceUpdater;
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use Exception;
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use Illuminate\Pagination\LengthAwarePaginator;
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class PageRepo
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{
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public function __construct(
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protected BaseRepo $baseRepo,
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protected RevisionRepo $revisionRepo,
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protected ReferenceStore $referenceStore,
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protected ReferenceUpdater $referenceUpdater
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) {
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}
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/**
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* Get a page by ID.
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*
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* @throws NotFoundException
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*/
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public function getById(int $id, array $relations = ['book']): Page
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{
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/** @var Page $page */
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$page = Page::visible()->with($relations)->find($id);
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if (!$page) {
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throw new NotFoundException(trans('errors.page_not_found'));
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}
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return $page;
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}
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/**
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* Get a page its book and own slug.
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*
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* @throws NotFoundException
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*/
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public function getBySlug(string $bookSlug, string $pageSlug): Page
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{
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$page = Page::visible()->whereSlugs($bookSlug, $pageSlug)->first();
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if (!$page) {
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throw new NotFoundException(trans('errors.page_not_found'));
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}
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return $page;
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}
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/**
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* Get a page by its old slug but checking the revisions table
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* for the last revision that matched the given page and book slug.
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*/
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public function getByOldSlug(string $bookSlug, string $pageSlug): ?Page
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{
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$revision = $this->revisionRepo->getBySlugs($bookSlug, $pageSlug);
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return $revision->page ?? null;
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}
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/**
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* Get pages that have been marked as a template.
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*/
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public function getTemplates(int $count = 10, int $page = 1, string $search = ''): LengthAwarePaginator
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{
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$query = Page::visible()
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->where('template', '=', true)
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->orderBy('name', 'asc')
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->skip(($page - 1) * $count)
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->take($count);
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if ($search) {
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$query->where('name', 'like', '%' . $search . '%');
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}
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$paginator = $query->paginate($count, ['*'], 'page', $page);
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$paginator->withPath('/templates');
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return $paginator;
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}
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/**
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* Get a parent item via slugs.
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*/
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public function getParentFromSlugs(string $bookSlug, string $chapterSlug = null): Entity
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{
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if ($chapterSlug !== null) {
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return Chapter::visible()->whereSlugs($bookSlug, $chapterSlug)->firstOrFail();
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}
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return Book::visible()->where('slug', '=', $bookSlug)->firstOrFail();
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}
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/**
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* Get the draft copy of the given page for the current user.
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*/
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public function getUserDraft(Page $page): ?PageRevision
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{
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return $this->revisionRepo->getLatestDraftForCurrentUser($page);
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}
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/**
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* Get a new draft page belonging to the given parent entity.
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*/
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public function getNewDraftPage(Entity $parent)
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{
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$page = (new Page())->forceFill([
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'name' => trans('entities.pages_initial_name'),
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'created_by' => user()->id,
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'owned_by' => user()->id,
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'updated_by' => user()->id,
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'draft' => true,
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]);
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if ($parent instanceof Chapter) {
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$page->chapter_id = $parent->id;
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$page->book_id = $parent->book_id;
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} else {
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$page->book_id = $parent->id;
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}
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$defaultTemplate = $page->book->defaultTemplate;
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if ($defaultTemplate && userCan('view', $defaultTemplate)) {
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$page->forceFill([
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'html' => $defaultTemplate->html,
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'markdown' => $defaultTemplate->markdown,
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]);
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}
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$page->save();
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$page->refresh()->rebuildPermissions();
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return $page;
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}
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/**
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* Publish a draft page to make it a live, non-draft page.
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*/
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public function publishDraft(Page $draft, array $input): Page
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{
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$draft->draft = false;
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$draft->revision_count = 1;
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$draft->priority = $this->getNewPriority($draft);
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$this->updateTemplateStatusAndContentFromInput($draft, $input);
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$this->baseRepo->update($draft, $input);
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$this->revisionRepo->storeNewForPage($draft, trans('entities.pages_initial_revision'));
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$draft->refresh();
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Activity::add(ActivityType::PAGE_CREATE, $draft);
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return $draft;
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}
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/**
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* Update a page in the system.
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*/
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public function update(Page $page, array $input): Page
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{
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// Hold the old details to compare later
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$oldHtml = $page->html;
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$oldName = $page->name;
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$oldMarkdown = $page->markdown;
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$this->updateTemplateStatusAndContentFromInput($page, $input);
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$this->baseRepo->update($page, $input);
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// Update with new details
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$page->revision_count++;
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$page->save();
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// Remove all update drafts for this user & page.
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$this->revisionRepo->deleteDraftsForCurrentUser($page);
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// Save a revision after updating
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$summary = trim($input['summary'] ?? '');
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$htmlChanged = isset($input['html']) && $input['html'] !== $oldHtml;
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$nameChanged = isset($input['name']) && $input['name'] !== $oldName;
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$markdownChanged = isset($input['markdown']) && $input['markdown'] !== $oldMarkdown;
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if ($htmlChanged || $nameChanged || $markdownChanged || $summary) {
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$this->revisionRepo->storeNewForPage($page, $summary);
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}
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Activity::add(ActivityType::PAGE_UPDATE, $page);
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return $page;
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}
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protected function updateTemplateStatusAndContentFromInput(Page $page, array $input)
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{
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if (isset($input['template']) && userCan('templates-manage')) {
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$page->template = ($input['template'] === 'true');
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}
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$pageContent = new PageContent($page);
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$currentEditor = $page->editor ?: PageEditorData::getSystemDefaultEditor();
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$newEditor = $currentEditor;
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$haveInput = isset($input['markdown']) || isset($input['html']);
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$inputEmpty = empty($input['markdown']) && empty($input['html']);
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if ($haveInput && $inputEmpty) {
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$pageContent->setNewHTML('', user());
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} elseif (!empty($input['markdown']) && is_string($input['markdown'])) {
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$newEditor = 'markdown';
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$pageContent->setNewMarkdown($input['markdown'], user());
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} elseif (isset($input['html'])) {
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$newEditor = 'wysiwyg';
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$pageContent->setNewHTML($input['html'], user());
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}
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if ($newEditor !== $currentEditor && userCan('editor-change')) {
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$page->editor = $newEditor;
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}
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}
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/**
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* Save a page update draft.
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*/
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public function updatePageDraft(Page $page, array $input)
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{
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// If the page itself is a draft simply update that
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if ($page->draft) {
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$this->updateTemplateStatusAndContentFromInput($page, $input);
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$page->fill($input);
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$page->save();
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return $page;
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}
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// Otherwise, save the data to a revision
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$draft = $this->revisionRepo->getNewDraftForCurrentUser($page);
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$draft->fill($input);
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if (!empty($input['markdown'])) {
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$draft->markdown = $input['markdown'];
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$draft->html = '';
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} else {
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$draft->html = $input['html'];
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$draft->markdown = '';
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}
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$draft->save();
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return $draft;
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}
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/**
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* Destroy a page from the system.
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*
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* @throws Exception
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*/
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public function destroy(Page $page)
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{
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$trashCan = new TrashCan();
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$trashCan->softDestroyPage($page);
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Activity::add(ActivityType::PAGE_DELETE, $page);
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$trashCan->autoClearOld();
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}
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/**
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* Restores a revision's content back into a page.
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*/
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public function restoreRevision(Page $page, int $revisionId): Page
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{
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$oldUrl = $page->getUrl();
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$page->revision_count++;
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/** @var PageRevision $revision */
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$revision = $page->revisions()->where('id', '=', $revisionId)->first();
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$page->fill($revision->toArray());
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$content = new PageContent($page);
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if (!empty($revision->markdown)) {
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$content->setNewMarkdown($revision->markdown, user());
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} else {
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$content->setNewHTML($revision->html, user());
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}
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$page->updated_by = user()->id;
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$page->refreshSlug();
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$page->save();
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$page->indexForSearch();
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$this->referenceStore->updateForEntity($page);
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$summary = trans('entities.pages_revision_restored_from', ['id' => strval($revisionId), 'summary' => $revision->summary]);
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$this->revisionRepo->storeNewForPage($page, $summary);
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if ($oldUrl !== $page->getUrl()) {
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$this->referenceUpdater->updateEntityReferences($page, $oldUrl);
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}
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Activity::add(ActivityType::PAGE_RESTORE, $page);
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Activity::add(ActivityType::REVISION_RESTORE, $revision);
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return $page;
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}
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/**
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* Move the given page into a new parent book or chapter.
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* The $parentIdentifier must be a string of the following format:
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* 'book:<id>' (book:5).
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*
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* @throws MoveOperationException
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* @throws PermissionsException
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*/
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public function move(Page $page, string $parentIdentifier): Entity
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{
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$parent = $this->findParentByIdentifier($parentIdentifier);
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if (is_null($parent)) {
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throw new MoveOperationException('Book or chapter to move page into not found');
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}
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if (!userCan('page-create', $parent)) {
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throw new PermissionsException('User does not have permission to create a page within the new parent');
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}
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$page->chapter_id = ($parent instanceof Chapter) ? $parent->id : null;
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$newBookId = ($parent instanceof Chapter) ? $parent->book->id : $parent->id;
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$page->changeBook($newBookId);
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$page->rebuildPermissions();
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Activity::add(ActivityType::PAGE_MOVE, $page);
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return $parent;
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}
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/**
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* Find a page parent entity via an identifier string in the format:
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* {type}:{id}
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* Example: (book:5).
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*
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* @throws MoveOperationException
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*/
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public function findParentByIdentifier(string $identifier): ?Entity
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{
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$stringExploded = explode(':', $identifier);
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$entityType = $stringExploded[0];
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$entityId = intval($stringExploded[1]);
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if ($entityType !== 'book' && $entityType !== 'chapter') {
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throw new MoveOperationException('Pages can only be in books or chapters');
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}
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$parentClass = $entityType === 'book' ? Book::class : Chapter::class;
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return $parentClass::visible()->where('id', '=', $entityId)->first();
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}
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/**
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* Get a new priority for a page.
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*/
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protected function getNewPriority(Page $page): int
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{
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$parent = $page->getParent();
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if ($parent instanceof Chapter) {
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/** @var ?Page $lastPage */
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$lastPage = $parent->pages('desc')->first();
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return $lastPage ? $lastPage->priority + 1 : 0;
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}
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return (new BookContents($page->book))->getLastPriority() + 1;
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}
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}
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