PHP PhabricatorSlug::getDefaultTitle方法代码示例

 public function renderBreadcrumbs($slug)
 {
     $ancestor_handles = array();
     $ancestral_slugs = PhabricatorSlug::getAncestry($slug);
     $ancestral_slugs[] = $slug;
     if ($ancestral_slugs) {
         $empty_slugs = array_fill_keys($ancestral_slugs, null);
         $ancestors = id(new PhrictionDocumentQuery())->setViewer($this->getRequest()->getUser())->withSlugs($ancestral_slugs)->execute();
         $ancestors = mpull($ancestors, null, 'getSlug');
         $ancestor_phids = mpull($ancestors, 'getPHID');
         $handles = array();
         if ($ancestor_phids) {
             $handles = $this->loadViewerHandles($ancestor_phids);
         }
         $ancestor_handles = array();
         foreach ($ancestral_slugs as $slug) {
             if (isset($ancestors[$slug])) {
                 $ancestor_handles[] = $handles[$ancestors[$slug]->getPHID()];
             } else {
                 $handle = new PhabricatorObjectHandle();
                 $handle->setName(PhabricatorSlug::getDefaultTitle($slug));
                 $handle->setURI(PhrictionDocument::getSlugURI($slug));
                 $ancestor_handles[] = $handle;
             }
         }
     }
     $breadcrumbs = array();
     foreach ($ancestor_handles as $ancestor_handle) {
         $breadcrumbs[] = id(new PHUICrumbView())->setName($ancestor_handle->getName())->setHref($ancestor_handle->getUri());
     }
     return $breadcrumbs;
 }

 public static function initializeNewDocument(PhabricatorUser $actor, $slug)
 {
     $document = new PhrictionDocument();
     $document->setSlug($slug);
     $content = new PhrictionContent();
     $content->setSlug($slug);
     $default_title = PhabricatorSlug::getDefaultTitle($slug);
     $content->setTitle($default_title);
     $document->attachContent($content);
     $parent_doc = null;
     $ancestral_slugs = PhabricatorSlug::getAncestry($slug);
     if ($ancestral_slugs) {
         $parent = end($ancestral_slugs);
         $parent_doc = id(new PhrictionDocumentQuery())->setViewer($actor)->withSlugs(array($parent))->executeOne();
     }
     if ($parent_doc) {
         $document->setViewPolicy($parent_doc->getViewPolicy());
         $document->setEditPolicy($parent_doc->getEditPolicy());
     } else {
         $default_view_policy = PhabricatorPolicies::getMostOpenPolicy();
         $document->setViewPolicy($default_view_policy);
         $document->setEditPolicy(PhabricatorPolicies::POLICY_USER);
     }
     return $document;
 }

 public static function newForSlug($slug)
 {
     $slug = PhabricatorSlug::normalize($slug);
     $document = id(new PhrictionDocument())->loadOneWhere('slug = %s', $slug);
     $content = null;
     if ($document) {
         $content = id(new PhrictionContent())->load($document->getContentID());
     } else {
         $document = new PhrictionDocument();
         $document->setSlug($slug);
     }
     if (!$content) {
         $default_title = PhabricatorSlug::getDefaultTitle($slug);
         $content = new PhrictionContent();
         $content->setSlug($slug);
         $content->setTitle($default_title);
         $content->setContent('');
     }
     $obj = new PhrictionDocumentEditor();
     $obj->document = $document;
     $obj->content = $content;
     return $obj;
 }

 public function processRequest()
 {
     $request = $this->getRequest();
     $user = $request->getUser();
     if ($this->id) {
         $document = id(new PhrictionDocument())->load($this->id);
         if (!$document) {
             return new Aphront404Response();
         }
         $revert = $request->getInt('revert');
         if ($revert) {
             $content = id(new PhrictionContent())->loadOneWhere('documentID = %d AND version = %d', $document->getID(), $revert);
             if (!$content) {
                 return new Aphront404Response();
             }
         } else {
             $content = id(new PhrictionContent())->load($document->getContentID());
         }
     } else {
         $slug = $request->getStr('slug');
         $slug = PhabricatorSlug::normalize($slug);
         if (!$slug) {
             return new Aphront404Response();
         }
         $document = id(new PhrictionDocument())->loadOneWhere('slug = %s', $slug);
         if ($document) {
             $content = id(new PhrictionContent())->load($document->getContentID());
         } else {
             $document = new PhrictionDocument();
             $document->setSlug($slug);
             $content = new PhrictionContent();
             $content->setSlug($slug);
             $default_title = PhabricatorSlug::getDefaultTitle($slug);
             $content->setTitle($default_title);
         }
     }
     if ($request->getBool('nodraft')) {
         $draft = null;
         $draft_key = null;
     } else {
         if ($document->getPHID()) {
             $draft_key = $document->getPHID() . ':' . $content->getVersion();
         } else {
             $draft_key = 'phriction:' . $content->getSlug();
         }
         $draft = id(new PhabricatorDraft())->loadOneWhere('authorPHID = %s AND draftKey = %s', $user->getPHID(), $draft_key);
     }
     require_celerity_resource('phriction-document-css');
     $e_title = true;
     $errors = array();
     if ($request->isFormPost()) {
         $title = $request->getStr('title');
         if (!strlen($title)) {
             $e_title = 'Required';
             $errors[] = 'Document title is required.';
         } else {
             $e_title = null;
         }
         if (!count($errors)) {
             $editor = id(PhrictionDocumentEditor::newForSlug($document->getSlug()))->setUser($user)->setTitle($title)->setContent($request->getStr('content'))->setDescription($request->getStr('description'));
             $editor->save();
             if ($draft) {
                 $draft->delete();
             }
             $uri = PhrictionDocument::getSlugURI($document->getSlug());
             return id(new AphrontRedirectResponse())->setURI($uri);
         }
     }
     $error_view = null;
     if ($errors) {
         $error_view = id(new AphrontErrorView())->setTitle('Form Errors')->setErrors($errors);
     }
     if ($document->getID()) {
         $panel_header = 'Edit Phriction Document';
         $submit_button = 'Save Changes';
         $delete_button = phutil_render_tag('a', array('href' => '/phriction/delete/' . $document->getID() . '/', 'class' => 'grey button'), 'Delete Document');
     } else {
         $panel_header = 'Create New Phriction Document';
         $submit_button = 'Create Document';
         $delete_button = null;
     }
     $uri = $document->getSlug();
     $uri = PhrictionDocument::getSlugURI($uri);
     $uri = PhabricatorEnv::getProductionURI($uri);
     $remarkup_reference = phutil_render_tag('a', array('href' => PhabricatorEnv::getDoclink('article/Remarkup_Reference.html'), 'tabindex' => '-1', 'target' => '_blank'), 'Formatting Reference');
     $cancel_uri = PhrictionDocument::getSlugURI($document->getSlug());
     if ($draft && strlen($draft->getDraft()) && $draft->getDraft() != $content->getContent()) {
         $content_text = $draft->getDraft();
         $discard = phutil_render_tag('a', array('href' => $request->getRequestURI()->alter('nodraft', true)), 'discard this draft');
         $draft_note = new AphrontErrorView();
         $draft_note->setSeverity(AphrontErrorView::SEVERITY_NOTICE);
         $draft_note->setTitle('Recovered Draft');
         $draft_note->appendChild('<p>Showing a saved draft of your edits, you can ' . $discard . '.</p>');
     } else {
         $content_text = $content->getContent();
         $draft_note = null;
     }
     $form = id(new AphrontFormView())->setUser($user)->setAction($request->getRequestURI()->getPath())->addHiddenInput('slug', $document->getSlug())->addHiddenInput('nodraft', $request->getBool('nodraft'))->appendChild(id(new AphrontFormTextControl())->setLabel('Title')->setValue($content->getTitle())->setError($e_title)->setName('title'))->appendChild(id(new AphrontFormStaticControl())->setLabel('URI')->setValue($uri))->appendChild(id(new AphrontFormTextAreaControl())->setLabel('Content')->setValue($content_text)->setHeight(AphrontFormTextAreaControl::HEIGHT_VERY_TALL)->setName('content')->setID('document-textarea')->setEnableDragAndDropFileUploads(true)->setCaption($remarkup_reference))->appendChild(id(new AphrontFormTextControl())->setLabel('Edit Notes')->setValue($content->getDescription())->setError(null)->setName('description'))->appendChild(id(new AphrontFormSubmitControl())->addCancelButton($cancel_uri)->setValue($submit_button));
     $panel = id(new AphrontPanelView())->setWidth(AphrontPanelView::WIDTH_WIDE)->setHeader($panel_header)->appendChild($form);
     if ($delete_button) {
//.........这里部分代码省略.........

 private function renderDocumentChildren($slug)
 {
     $document_dao = new PhrictionDocument();
     $content_dao = new PhrictionContent();
     $conn = $document_dao->establishConnection('r');
     $limit = 250;
     $d_child = PhabricatorSlug::getDepth($slug) + 1;
     $d_grandchild = PhabricatorSlug::getDepth($slug) + 2;
     // Select children and grandchildren.
     $children = queryfx_all($conn, 'SELECT d.slug, d.depth, c.title FROM %T d JOIN %T c
     ON d.contentID = c.id
     WHERE d.slug LIKE %> AND d.depth IN (%d, %d)
       AND d.status IN (%Ld)
     ORDER BY d.depth, c.title LIMIT %d', $document_dao->getTableName(), $content_dao->getTableName(), $slug == '/' ? '' : $slug, $d_child, $d_grandchild, array(PhrictionDocumentStatus::STATUS_EXISTS, PhrictionDocumentStatus::STATUS_STUB), $limit);
     if (!$children) {
         return;
     }
     // We're going to render in one of three modes to try to accommodate
     // different information scales:
     //
     //  - If we found fewer than $limit rows, we know we have all the children
     //    and grandchildren and there aren't all that many. We can just render
     //    everything.
     //  - If we found $limit rows but the results included some grandchildren,
     //    we just throw them out and render only the children, as we know we
     //    have them all.
     //  - If we found $limit rows and the results have no grandchildren, we
     //    have a ton of children. Render them and then let the user know that
     //    this is not an exhaustive list.
     if (count($children) == $limit) {
         $more_children = true;
         foreach ($children as $child) {
             if ($child['depth'] == $d_grandchild) {
                 $more_children = false;
             }
         }
         $show_grandchildren = false;
     } else {
         $show_grandchildren = true;
         $more_children = false;
     }
     $grandchildren = array();
     foreach ($children as $key => $child) {
         if ($child['depth'] == $d_child) {
             continue;
         } else {
             unset($children[$key]);
             if ($show_grandchildren) {
                 $ancestors = PhabricatorSlug::getAncestry($child['slug']);
                 $grandchildren[end($ancestors)][] = $child;
             }
         }
     }
     // Fill in any missing children.
     $known_slugs = ipull($children, null, 'slug');
     foreach ($grandchildren as $slug => $ignored) {
         if (empty($known_slugs[$slug])) {
             $children[] = array('slug' => $slug, 'depth' => $d_child, 'title' => PhabricatorSlug::getDefaultTitle($slug), 'empty' => true);
         }
     }
     $children = isort($children, 'title');
     $list = array();
     foreach ($children as $child) {
         $list[] = hsprintf('<li>');
         $list[] = $this->renderChildDocumentLink($child);
         $grand = idx($grandchildren, $child['slug'], array());
         if ($grand) {
             $list[] = hsprintf('<ul>');
             foreach ($grand as $grandchild) {
                 $list[] = hsprintf('<li>');
                 $list[] = $this->renderChildDocumentLink($grandchild);
                 $list[] = hsprintf('</li>');
             }
             $list[] = hsprintf('</ul>');
         }
         $list[] = hsprintf('</li>');
     }
     if ($more_children) {
         $list[] = phutil_tag('li', array(), pht('More...'));
     }
     $content = array(phutil_tag('div', array('class' => 'phriction-children-header ' . 'sprite-gradient gradient-lightblue-header'), pht('Document Hierarchy')), phutil_tag('div', array('class' => 'phriction-children'), phutil_tag('ul', array(), $list)));
     return id(new PHUIDocumentView())->setOffset(true)->appendChild($content);
 }

 private function renderDocumentChildren($slug)
 {
     $d_child = PhabricatorSlug::getDepth($slug) + 1;
     $d_grandchild = PhabricatorSlug::getDepth($slug) + 2;
     $limit = 250;
     $query = id(new PhrictionDocumentQuery())->setViewer($this->getRequest()->getUser())->withDepths(array($d_child, $d_grandchild))->withSlugPrefix($slug == '/' ? '' : $slug)->withStatuses(array(PhrictionDocumentStatus::STATUS_EXISTS, PhrictionDocumentStatus::STATUS_STUB))->setLimit($limit)->setOrder(PhrictionDocumentQuery::ORDER_HIERARCHY)->needContent(true);
     $children = $query->execute();
     if (!$children) {
         return;
     }
     // We're going to render in one of three modes to try to accommodate
     // different information scales:
     //
     //  - If we found fewer than $limit rows, we know we have all the children
     //    and grandchildren and there aren't all that many. We can just render
     //    everything.
     //  - If we found $limit rows but the results included some grandchildren,
     //    we just throw them out and render only the children, as we know we
     //    have them all.
     //  - If we found $limit rows and the results have no grandchildren, we
     //    have a ton of children. Render them and then let the user know that
     //    this is not an exhaustive list.
     if (count($children) == $limit) {
         $more_children = true;
         foreach ($children as $child) {
             if ($child->getDepth() == $d_grandchild) {
                 $more_children = false;
             }
         }
         $show_grandchildren = false;
     } else {
         $show_grandchildren = true;
         $more_children = false;
     }
     $children_dicts = array();
     $grandchildren_dicts = array();
     foreach ($children as $key => $child) {
         $child_dict = array('slug' => $child->getSlug(), 'depth' => $child->getDepth(), 'title' => $child->getContent()->getTitle());
         if ($child->getDepth() == $d_child) {
             $children_dicts[] = $child_dict;
             continue;
         } else {
             unset($children[$key]);
             if ($show_grandchildren) {
                 $ancestors = PhabricatorSlug::getAncestry($child->getSlug());
                 $grandchildren_dicts[end($ancestors)][] = $child_dict;
             }
         }
     }
     // Fill in any missing children.
     $known_slugs = mpull($children, null, 'getSlug');
     foreach ($grandchildren_dicts as $slug => $ignored) {
         if (empty($known_slugs[$slug])) {
             $children_dicts[] = array('slug' => $slug, 'depth' => $d_child, 'title' => PhabricatorSlug::getDefaultTitle($slug), 'empty' => true);
         }
     }
     $children_dicts = isort($children_dicts, 'title');
     $list = array();
     foreach ($children_dicts as $child) {
         $list[] = hsprintf('<li class="remarkup-list-item">');
         $list[] = $this->renderChildDocumentLink($child);
         $grand = idx($grandchildren_dicts, $child['slug'], array());
         if ($grand) {
             $list[] = hsprintf('<ul class="remarkup-list">');
             foreach ($grand as $grandchild) {
                 $list[] = hsprintf('<li class="remarkup-list-item">');
                 $list[] = $this->renderChildDocumentLink($grandchild);
                 $list[] = hsprintf('</li>');
             }
             $list[] = hsprintf('</ul>');
         }
         $list[] = hsprintf('</li>');
     }
     if ($more_children) {
         $list[] = phutil_tag('li', array('class' => 'remarkup-list-item'), pht('More...'));
     }
     $header = id(new PHUIHeaderView())->setHeader(pht('Document Hierarchy'));
     $box = id(new PHUIObjectBoxView())->setHeader($header)->appendChild(phutil_tag('div', array('class' => 'phabricator-remarkup mlt mlb'), phutil_tag('ul', array('class' => 'remarkup-list'), $list)));
     return phutil_tag_div('phui-document-box', $box);
 }

 public function processRequest()
 {
     $request = $this->getRequest();
     $user = $request->getUser();
     $current_version = null;
     if ($this->id) {
         $document = id(new PhrictionDocumentQuery())->setViewer($user)->withIDs(array($this->id))->needContent(true)->requireCapabilities(array(PhabricatorPolicyCapability::CAN_VIEW, PhabricatorPolicyCapability::CAN_EDIT))->executeOne();
         if (!$document) {
             return new Aphront404Response();
         }
         $current_version = $document->getContent()->getVersion();
         $revert = $request->getInt('revert');
         if ($revert) {
             $content = id(new PhrictionContent())->loadOneWhere('documentID = %d AND version = %d', $document->getID(), $revert);
             if (!$content) {
                 return new Aphront404Response();
             }
         } else {
             $content = $document->getContent();
         }
     } else {
         $slug = $request->getStr('slug');
         $slug = PhabricatorSlug::normalize($slug);
         if (!$slug) {
             return new Aphront404Response();
         }
         $document = id(new PhrictionDocumentQuery())->setViewer($user)->withSlugs(array($slug))->needContent(true)->executeOne();
         if ($document) {
             $content = $document->getContent();
             $current_version = $content->getVersion();
         } else {
             if (PhrictionDocument::isProjectSlug($slug)) {
                 $project = id(new PhabricatorProjectQuery())->setViewer($user)->withPhrictionSlugs(array(PhrictionDocument::getProjectSlugIdentifier($slug)))->executeOne();
                 if (!$project) {
                     return new Aphront404Response();
                 }
             }
             $document = new PhrictionDocument();
             $document->setSlug($slug);
             $content = new PhrictionContent();
             $content->setSlug($slug);
             $default_title = PhabricatorSlug::getDefaultTitle($slug);
             $content->setTitle($default_title);
         }
     }
     if ($request->getBool('nodraft')) {
         $draft = null;
         $draft_key = null;
     } else {
         if ($document->getPHID()) {
             $draft_key = $document->getPHID() . ':' . $content->getVersion();
         } else {
             $draft_key = 'phriction:' . $content->getSlug();
         }
         $draft = id(new PhabricatorDraft())->loadOneWhere('authorPHID = %s AND draftKey = %s', $user->getPHID(), $draft_key);
     }
     require_celerity_resource('phriction-document-css');
     $e_title = true;
     $notes = null;
     $errors = array();
     if ($request->isFormPost()) {
         $overwrite = $request->getBool('overwrite');
         if (!$overwrite) {
             $edit_version = $request->getStr('contentVersion');
             if ($edit_version != $current_version) {
                 $dialog = $this->newDialog()->setTitle(pht('Edit Conflict!'))->appendParagraph(pht('Another user made changes to this document after you began ' . 'editing it. Do you want to overwrite their changes?'))->appendParagraph(pht('If you choose to overwrite their changes, you should review ' . 'the document edit history to see what you overwrote, and ' . 'then make another edit to merge the changes if necessary.'))->addSubmitButton(pht('Overwrite Changes'))->addCancelButton($request->getRequestURI());
                 $dialog->addHiddenInput('overwrite', 'true');
                 foreach ($request->getPassthroughRequestData() as $key => $value) {
                     $dialog->addHiddenInput($key, $value);
                 }
                 return $dialog;
             }
         }
         $title = $request->getStr('title');
         $notes = $request->getStr('description');
         if (!strlen($title)) {
             $e_title = pht('Required');
             $errors[] = pht('Document title is required.');
         } else {
             $e_title = null;
         }
         if ($document->getID()) {
             if ($content->getTitle() == $title && $content->getContent() == $request->getStr('content')) {
                 $dialog = new AphrontDialogView();
                 $dialog->setUser($user);
                 $dialog->setTitle(pht('No Edits'));
                 $dialog->appendChild(phutil_tag('p', array(), pht('You did not make any changes to the document.')));
                 $dialog->addCancelButton($request->getRequestURI());
                 return id(new AphrontDialogResponse())->setDialog($dialog);
             }
         } else {
             if (!strlen($request->getStr('content'))) {
                 // We trigger this only for new pages. For existing pages, deleting
                 // all the content counts as deleting the page.
                 $dialog = new AphrontDialogView();
                 $dialog->setUser($user);
                 $dialog->setTitle(pht('Empty Page'));
                 $dialog->appendChild(phutil_tag('p', array(), pht('You can not create an empty document.')));
                 $dialog->addCancelButton($request->getRequestURI());
                 return id(new AphrontDialogResponse())->setDialog($dialog);
//.........这里部分代码省略.........

 protected function applyFinalEffects(PhabricatorLiskDAO $object, array $xactions)
 {
     $save_content = false;
     foreach ($xactions as $xaction) {
         switch ($xaction->getTransactionType()) {
             case PhrictionTransaction::TYPE_TITLE:
             case PhrictionTransaction::TYPE_CONTENT:
             case PhrictionTransaction::TYPE_DELETE:
             case PhrictionTransaction::TYPE_MOVE_AWAY:
             case PhrictionTransaction::TYPE_MOVE_TO:
                 $save_content = true;
                 break;
             default:
                 break;
         }
     }
     if ($save_content) {
         $content = $this->getNewContent();
         $content->setDocumentID($object->getID());
         $content->save();
         $object->setContentID($content->getID());
         $object->save();
         $object->attachContent($content);
     }
     if ($this->getIsNewObject() && !$this->getSkipAncestorCheck()) {
         // Stub out empty parent documents if they don't exist
         $ancestral_slugs = PhabricatorSlug::getAncestry($object->getSlug());
         if ($ancestral_slugs) {
             $ancestors = id(new PhrictionDocumentQuery())->setViewer(PhabricatorUser::getOmnipotentUser())->withSlugs($ancestral_slugs)->needContent(true)->execute();
             $ancestors = mpull($ancestors, null, 'getSlug');
             $stub_type = PhrictionChangeType::CHANGE_STUB;
             foreach ($ancestral_slugs as $slug) {
                 $ancestor_doc = idx($ancestors, $slug);
                 // We check for change type to prevent near-infinite recursion
                 if (!$ancestor_doc && $content->getChangeType() != $stub_type) {
                     $ancestor_doc = PhrictionDocument::initializeNewDocument($this->getActor(), $slug);
                     $stub_xactions = array();
                     $stub_xactions[] = id(new PhrictionTransaction())->setTransactionType(PhrictionTransaction::TYPE_TITLE)->setNewValue(PhabricatorSlug::getDefaultTitle($slug))->setMetadataValue('stub:create:phid', $object->getPHID());
                     $stub_xactions[] = id(new PhrictionTransaction())->setTransactionType(PhrictionTransaction::TYPE_CONTENT)->setNewValue('')->setMetadataValue('stub:create:phid', $object->getPHID());
                     $stub_xactions[] = id(new PhrictionTransaction())->setTransactionType(PhabricatorTransactions::TYPE_VIEW_POLICY)->setNewValue($object->getViewPolicy());
                     $stub_xactions[] = id(new PhrictionTransaction())->setTransactionType(PhabricatorTransactions::TYPE_EDIT_POLICY)->setNewValue($object->getEditPolicy());
                     $sub_editor = id(new PhrictionTransactionEditor())->setActor($this->getActor())->setContentSource($this->getContentSource())->setContinueOnNoEffect($this->getContinueOnNoEffect())->setSkipAncestorCheck(true)->setDescription(pht('Empty Parent Document'))->applyTransactions($ancestor_doc, $stub_xactions);
                 }
             }
         }
     }
     if ($this->moveAwayDocument !== null) {
         $move_away_xactions = array();
         $move_away_xactions[] = id(new PhrictionTransaction())->setTransactionType(PhrictionTransaction::TYPE_MOVE_AWAY)->setNewValue($object);
         $sub_editor = id(new PhrictionTransactionEditor())->setActor($this->getActor())->setContentSource($this->getContentSource())->setContinueOnNoEffect($this->getContinueOnNoEffect())->setDescription($this->getDescription())->applyTransactions($this->moveAwayDocument, $move_away_xactions);
     }
     // Compute the content diff URI for the publishing phase.
     foreach ($xactions as $xaction) {
         switch ($xaction->getTransactionType()) {
             case PhrictionTransaction::TYPE_CONTENT:
                 $uri = id(new PhutilURI('/phriction/diff/' . $object->getID() . '/'))->alter('l', $this->getOldContent()->getVersion())->alter('r', $this->getNewContent()->getVersion());
                 $this->contentDiffURI = (string) $uri;
                 break 2;
             default:
                 break;
         }
     }
     return $xactions;
 }

 private function updateDocument($document, $content, $new_content)
 {
     $is_new = false;
     if (!$document->getID()) {
         $is_new = true;
     }
     $new_content->setVersion($content->getVersion() + 1);
     $change_type = $new_content->getChangeType();
     switch ($change_type) {
         case PhrictionChangeType::CHANGE_EDIT:
             $doc_status = PhrictionDocumentStatus::STATUS_EXISTS;
             $feed_action = $is_new ? PhrictionActionConstants::ACTION_CREATE : PhrictionActionConstants::ACTION_EDIT;
             break;
         case PhrictionChangeType::CHANGE_DELETE:
             $doc_status = PhrictionDocumentStatus::STATUS_DELETED;
             $feed_action = PhrictionActionConstants::ACTION_DELETE;
             if ($is_new) {
                 throw new Exception("You can not delete a document which doesn't exist yet!");
             }
             break;
         case PhrictionChangeType::CHANGE_STUB:
             $doc_status = PhrictionDocumentStatus::STATUS_STUB;
             $feed_action = null;
             break;
         case PhrictionChangeType::CHANGE_MOVE_AWAY:
             $doc_status = PhrictionDocumentStatus::STATUS_MOVED;
             $feed_action = null;
             break;
         case PhrictionChangeType::CHANGE_MOVE_HERE:
             $doc_status = PhrictionDocumentStatus::STATUS_EXISTS;
             $feed_action = PhrictionActionConstants::ACTION_MOVE_HERE;
             break;
         default:
             throw new Exception("Unsupported content change type '{$change_type}'!");
     }
     $document->setStatus($doc_status);
     // TODO: This should be transactional.
     if ($is_new) {
         $document->save();
     }
     $new_content->setDocumentID($document->getID());
     $new_content->save();
     $document->setContentID($new_content->getID());
     $document->save();
     $document->attachContent($new_content);
     id(new PhabricatorSearchIndexer())->queueDocumentForIndexing($document->getPHID());
     // Stub out empty parent documents if they don't exist
     $ancestral_slugs = PhabricatorSlug::getAncestry($document->getSlug());
     if ($ancestral_slugs) {
         $ancestors = id(new PhrictionDocument())->loadAllWhere('slug IN (%Ls)', $ancestral_slugs);
         $ancestors = mpull($ancestors, null, 'getSlug');
         foreach ($ancestral_slugs as $slug) {
             // We check for change type to prevent near-infinite recursion
             if (!isset($ancestors[$slug]) && $new_content->getChangeType() != PhrictionChangeType::CHANGE_STUB) {
                 id(PhrictionDocumentEditor::newForSlug($slug))->setActor($this->getActor())->setTitle(PhabricatorSlug::getDefaultTitle($slug))->setContent('')->setDescription(pht('Empty Parent Document'))->stub();
             }
         }
     }
     $project_phid = null;
     $slug = $document->getSlug();
     if (PhrictionDocument::isProjectSlug($slug)) {
         $project = id(new PhabricatorProjectQuery())->setViewer($this->requireActor())->withPhrictionSlugs(array(PhrictionDocument::getProjectSlugIdentifier($slug)))->executeOne();
         if ($project) {
             $project_phid = $project->getPHID();
         }
     }
     $related_phids = array($document->getPHID(), $this->getActor()->getPHID());
     if ($project_phid) {
         $related_phids[] = $project_phid;
     }
     if ($this->fromDocumentPHID) {
         $related_phids[] = $this->fromDocumentPHID;
     }
     if ($feed_action) {
         $content_str = id(new PhutilUTF8StringTruncator())->setMaximumGlyphs(140)->truncateString($new_content->getContent());
         id(new PhabricatorFeedStoryPublisher())->setRelatedPHIDs($related_phids)->setStoryAuthorPHID($this->getActor()->getPHID())->setStoryTime(time())->setStoryType(PhabricatorFeedStoryTypeConstants::STORY_PHRICTION)->setStoryData(array('phid' => $document->getPHID(), 'action' => $feed_action, 'content' => $content_str, 'project' => $project_phid, 'movedFromPHID' => $this->fromDocumentPHID))->publish();
     }
     // TODO: Migrate to ApplicationTransactions fast, so we get rid of this code
     $subscribers = PhabricatorSubscribersQuery::loadSubscribersForPHID($document->getPHID());
     $this->sendMailToSubscribers($subscribers, $content);
     return $this;
 }