No OneTemporary
Actions

Size

64 KB

Referenced Files

None

Subscribers

None

View Options

	diff --git a/src/applications/maniphest/controller/ManiphestTaskEditController.php b/src/applications/maniphest/controller/ManiphestTaskEditController.php
	index cc59ecc5c2..f01b158015 100644
	--- a/src/applications/maniphest/controller/ManiphestTaskEditController.php
	+++ b/src/applications/maniphest/controller/ManiphestTaskEditController.php
	@@ -1,604 +1,603 @@
	<?php

	/**
	* @group maniphest
	*/
	final class ManiphestTaskEditController extends ManiphestController {

	private $id;

	public function willProcessRequest(array $data) {
	$this->id = idx($data, 'id');
	}

	public function processRequest() {

	$request = $this->getRequest();
	$user = $request->getUser();

	$files = array();
	$parent_task = null;
	$template_id = null;

	if ($this->id) {
	$task = id(new ManiphestTask())->load($this->id);
	if (!$task) {
	return new Aphront404Response();
	}
	} else {
	$task = new ManiphestTask();
	$task->setPriority(ManiphestTaskPriority::getDefaultPriority());
	$task->setAuthorPHID($user->getPHID());

	// These allow task creation with defaults.
	if (!$request->isFormPost()) {
	$task->setTitle($request->getStr('title'));

	$default_projects = $request->getStr('projects');
	if ($default_projects) {
	$task->setProjectPHIDs(explode(';', $default_projects));
	}

	$task->setDescription($request->getStr('description'));

	$assign = $request->getStr('assign');
	if (strlen($assign)) {
	$assign_user = id(new PhabricatorUser())->loadOneWhere(
	'username = %s',
	$assign);
	if ($assign_user) {
	$task->setOwnerPHID($assign_user->getPHID());
	}
	}
	}

	$file_phids = $request->getArr('files', array());
	if (!$file_phids) {
	// Allow a single 'file' key instead, mostly since Mac OS X urlencodes
	// square brackets in URLs when passed to 'open', so you can't 'open'
	// a URL like '?files[]=xyz' and have PHP interpret it correctly.
	$phid = $request->getStr('file');
	if ($phid) {
	$file_phids = array($phid);
	}
	}

	if ($file_phids) {
	$files = id(new PhabricatorFile())->loadAllWhere(
	'phid IN (%Ls)',
	$file_phids);
	}

	$template_id = $request->getInt('template');

	// You can only have a parent task if you're creating a new task.
	$parent_id = $request->getInt('parent');
	if ($parent_id) {
	$parent_task = id(new ManiphestTask())->load($parent_id);
	if (!$template_id) {
	$template_id = $parent_id;
	}
	}
	}

	$errors = array();
	$e_title = true;

	$field_list = PhabricatorCustomField::getObjectFields(
	$task,
	PhabricatorCustomField::ROLE_EDIT);

	foreach ($field_list->getFields() as $field) {
	$field->setObject($task);
	$field->setViewer($user);
	}

	$field_list->readFieldsFromStorage($task);

	$aux_fields = $field_list->getFields();

	if ($request->isFormPost()) {
	$changes = array();

	$new_title = $request->getStr('title');
	$new_desc = $request->getStr('description');
	$new_status = $request->getStr('status');

	$workflow = '';

	if ($task->getID()) {
	if ($new_title != $task->getTitle()) {
	$changes[ManiphestTransactionType::TYPE_TITLE] = $new_title;
	}
	if ($new_desc != $task->getDescription()) {
	$changes[ManiphestTransactionType::TYPE_DESCRIPTION] = $new_desc;
	}
	if ($new_status != $task->getStatus()) {
	$changes[ManiphestTransactionType::TYPE_STATUS] = $new_status;
	}
	} else {
	$task->setTitle($new_title);
	$task->setDescription($new_desc);
	$changes[ManiphestTransactionType::TYPE_STATUS] =
	ManiphestTaskStatus::STATUS_OPEN;

	$workflow = 'create';
	}

	$owner_tokenizer = $request->getArr('assigned_to');
	$owner_phid = reset($owner_tokenizer);

	if (!strlen($new_title)) {
	$e_title = pht('Required');
	$errors[] = pht('Title is required.');
	}

	$old_values = array();
	foreach ($aux_fields as $aux_arr_key => $aux_field) {
	// TODO: This should be buildFieldTransactionsFromRequest() once we
	// switch to ApplicationTransactions properly.

	$aux_old_value = $aux_field->getOldValueForApplicationTransactions();
	$aux_field->readValueFromRequest($request);
	$aux_new_value = $aux_field->getNewValueForApplicationTransactions();

	// TODO: We're faking a call to the ApplicaitonTransaction validation
	// logic here. We need valid objects to pass, but they aren't used
	// in a meaningful way. For now, build User objects. Once the Maniphest
	// objects exist, this will switch over automatically. This is a big
	// hack but shouldn't be long for this world.
	$placeholder_editor = new PhabricatorUserProfileEditor();

	$field_errors = $aux_field->validateApplicationTransactions(
	$placeholder_editor,
	PhabricatorTransactions::TYPE_CUSTOMFIELD,
	array(
	id(new ManiphestTransactionPro())
	->setOldValue($aux_old_value)
	->setNewValue($aux_new_value),
	));

	foreach ($field_errors as $error) {
	$errors[] = $error->getMessage();
	}

	$old_values[$aux_field->getFieldKey()] = $aux_old_value;
	}

	if ($errors) {
	$task->setPriority($request->getInt('priority'));
	$task->setOwnerPHID($owner_phid);
	$task->setCCPHIDs($request->getArr('cc'));
	$task->setProjectPHIDs($request->getArr('projects'));
	} else {
	if ($request->getInt('priority') != $task->getPriority()) {
	$changes[ManiphestTransactionType::TYPE_PRIORITY] =
	$request->getInt('priority');
	}

	if ($owner_phid != $task->getOwnerPHID()) {
	$changes[ManiphestTransactionType::TYPE_OWNER] = $owner_phid;
	}

	if ($request->getArr('cc') != $task->getCCPHIDs()) {
	$changes[ManiphestTransactionType::TYPE_CCS] = $request->getArr('cc');
	}

	$new_proj_arr = $request->getArr('projects');
	$new_proj_arr = array_values($new_proj_arr);
	sort($new_proj_arr);

	$cur_proj_arr = $task->getProjectPHIDs();
	$cur_proj_arr = array_values($cur_proj_arr);
	sort($cur_proj_arr);

	if ($new_proj_arr != $cur_proj_arr) {
	$changes[ManiphestTransactionType::TYPE_PROJECTS] = $new_proj_arr;
	}

	if ($files) {
	$file_map = mpull($files, 'getPHID');
	$file_map = array_fill_keys($file_map, array());
	$changes[ManiphestTransactionType::TYPE_ATTACH] = array(
	PhabricatorFilePHIDTypeFile::TYPECONST => $file_map,
	);
	}

	$content_source = PhabricatorContentSource::newForSource(
	PhabricatorContentSource::SOURCE_WEB,
	array(
	'ip' => $request->getRemoteAddr(),
	));

	- $template = new ManiphestTransaction();
	- $template->setAuthorPHID($user->getPHID());
	- $template->setContentSource($content_source);
	+ $template = new ManiphestTransactionPro();
	$transactions = array();

	foreach ($changes as $type => $value) {
	$transaction = clone $template;
	$transaction->setTransactionType($type);
	$transaction->setNewValue($value);
	$transactions[] = $transaction;
	}

	if ($aux_fields) {
	foreach ($aux_fields as $aux_field) {
	$transaction = clone $template;
	$transaction->setTransactionType(
	PhabricatorTransactions::TYPE_CUSTOMFIELD);
	$aux_key = $aux_field->getFieldKey();
	$transaction->setMetadataValue('customfield:key', $aux_key);
	$old = idx($old_values, $aux_key);
	$new = $aux_field->getNewValueForApplicationTransactions();

	// TODO: This is a ghetto check for transactions with no effect.
	if (!is_array($old) && !is_array($new)) {
	if ((string)$old === (string)$new) {
	continue;
	}
	} else if ($old == $new) {
	continue;
	}

	$transaction->setOldValue($old);
	$transaction->setNewValue($new);

	$transactions[] = $transaction;
	}
	}

	if ($transactions) {
	$is_new = !$task->getID();

	$event = new PhabricatorEvent(
	PhabricatorEventType::TYPE_MANIPHEST_WILLEDITTASK,
	array(
	'task' => $task,
	'new' => $is_new,
	'transactions' => $transactions,
	));
	$event->setUser($user);
	$event->setAphrontRequest($request);
	PhutilEventEngine::dispatchEvent($event);

	$task = $event->getValue('task');
	$transactions = $event->getValue('transactions');

	- $editor = new ManiphestTransactionEditor();
	- $editor->setActor($user);
	- $editor->setAuxiliaryFields($aux_fields);
	- $editor->applyTransactions($task, $transactions);
	+ $editor = id(new ManiphestTransactionEditorPro())
	+ ->setActor($user)
	+ ->setContentSourceFromRequest($request)
	+ ->setContinueOnNoEffect(true)
	+ ->applyTransactions($task, $transactions);

	$event = new PhabricatorEvent(
	PhabricatorEventType::TYPE_MANIPHEST_DIDEDITTASK,
	array(
	'task' => $task,
	'new' => $is_new,
	'transactions' => $transactions,
	));
	$event->setUser($user);
	$event->setAphrontRequest($request);
	PhutilEventEngine::dispatchEvent($event);
	}


	if ($parent_task) {
	id(new PhabricatorEdgeEditor())
	->setActor($user)
	->addEdge(
	$parent_task->getPHID(),
	PhabricatorEdgeConfig::TYPE_TASK_DEPENDS_ON_TASK,
	$task->getPHID())
	->save();
	$workflow = $parent_task->getID();
	}

	if ($request->isAjax()) {
	return id(new AphrontAjaxResponse())->setContent(
	array(
	'tasks' => $this->renderSingleTask($task),
	));
	}

	$redirect_uri = '/T'.$task->getID();

	if ($workflow) {
	$redirect_uri .= '?workflow='.$workflow;
	}

	return id(new AphrontRedirectResponse())
	->setURI($redirect_uri);
	}
	} else {
	if (!$task->getID()) {
	$task->setCCPHIDs(array(
	$user->getPHID(),
	));
	if ($template_id) {
	$template_task = id(new ManiphestTask())->load($template_id);
	if ($template_task) {
	$task->setCCPHIDs($template_task->getCCPHIDs());
	$task->setProjectPHIDs($template_task->getProjectPHIDs());
	$task->setOwnerPHID($template_task->getOwnerPHID());
	$task->setPriority($template_task->getPriority());

	$template_fields = PhabricatorCustomField::getObjectFields(
	$template_task,
	PhabricatorCustomField::ROLE_EDIT);

	$fields = $template_fields->getFields();
	foreach ($fields as $key => $field) {
	if (!$field->shouldCopyWhenCreatingSimilarTask()) {
	unset($fields[$key]);
	}
	if (empty($aux_fields[$key])) {
	unset($fields[$key]);
	}
	}

	if ($fields) {
	id(new PhabricatorCustomFieldList($fields))
	->readFieldsFromStorage($template_task);

	foreach ($fields as $key => $field) {
	$aux_fields[$key]->setValueFromStorage(
	$field->getValueForStorage());
	}
	}
	}
	}
	}
	}

	$phids = array_merge(
	array($task->getOwnerPHID()),
	$task->getCCPHIDs(),
	$task->getProjectPHIDs());

	if ($parent_task) {
	$phids[] = $parent_task->getPHID();
	}

	$phids = array_filter($phids);
	$phids = array_unique($phids);

	$handles = $this->loadViewerHandles($phids);

	$tvalues = mpull($handles, 'getFullName', 'getPHID');

	$error_view = null;
	if ($errors) {
	$error_view = new AphrontErrorView();
	$error_view->setErrors($errors);
	$error_view->setTitle(pht('Form Errors'));
	}

	$priority_map = ManiphestTaskPriority::getTaskPriorityMap();

	if ($task->getOwnerPHID()) {
	$assigned_value = array(
	$task->getOwnerPHID() => $handles[$task->getOwnerPHID()]->getFullName(),
	);
	} else {
	$assigned_value = array();
	}

	if ($task->getCCPHIDs()) {
	$cc_value = array_select_keys($tvalues, $task->getCCPHIDs());
	} else {
	$cc_value = array();
	}

	if ($task->getProjectPHIDs()) {
	$projects_value = array_select_keys($tvalues, $task->getProjectPHIDs());
	} else {
	$projects_value = array();
	}

	$cancel_id = nonempty($task->getID(), $template_id);
	if ($cancel_id) {
	$cancel_uri = '/T'.$cancel_id;
	} else {
	$cancel_uri = '/maniphest/';
	}

	if ($task->getID()) {
	$button_name = pht('Save Task');
	$header_name = pht('Edit Task');
	} else if ($parent_task) {
	$cancel_uri = '/T'.$parent_task->getID();
	$button_name = pht('Create Task');
	$header_name = pht('Create New Subtask');
	} else {
	$button_name = pht('Create Task');
	$header_name = pht('Create New Task');
	}

	require_celerity_resource('maniphest-task-edit-css');

	$project_tokenizer_id = celerity_generate_unique_node_id();

	if ($request->isAjax()) {
	$form = new PHUIFormLayoutView();
	} else {
	$form = new AphrontFormView();
	$form
	->setUser($user)
	->addHiddenInput('template', $template_id);
	}

	if ($parent_task) {
	$form
	->appendChild(
	id(new AphrontFormStaticControl())
	->setLabel(pht('Parent Task'))
	->setValue($handles[$parent_task->getPHID()]->getFullName()))
	->addHiddenInput('parent', $parent_task->getID());
	}

	$form
	->appendChild(
	id(new AphrontFormTextAreaControl())
	->setLabel(pht('Title'))
	->setName('title')
	->setError($e_title)
	->setHeight(AphrontFormTextAreaControl::HEIGHT_VERY_SHORT)
	->setValue($task->getTitle()));

	if ($task->getID()) {
	// Only show this in "edit" mode, not "create" mode, since creating a
	// non-open task is kind of silly and it would just clutter up the
	// "create" interface.
	$form
	->appendChild(
	id(new AphrontFormSelectControl())
	->setLabel(pht('Status'))
	->setName('status')
	->setValue($task->getStatus())
	->setOptions(ManiphestTaskStatus::getTaskStatusMap()));
	}

	$form
	->appendChild(
	id(new AphrontFormTokenizerControl())
	->setLabel(pht('Assigned To'))
	->setName('assigned_to')
	->setValue($assigned_value)
	->setUser($user)
	->setDatasource('/typeahead/common/users/')
	->setLimit(1))
	->appendChild(
	id(new AphrontFormTokenizerControl())
	->setLabel(pht('CC'))
	->setName('cc')
	->setValue($cc_value)
	->setUser($user)
	->setDatasource('/typeahead/common/mailable/'))
	->appendChild(
	id(new AphrontFormSelectControl())
	->setLabel(pht('Priority'))
	->setName('priority')
	->setOptions($priority_map)
	->setValue($task->getPriority()))
	->appendChild(
	id(new AphrontFormTokenizerControl())
	->setLabel(pht('Projects'))
	->setName('projects')
	->setValue($projects_value)
	->setID($project_tokenizer_id)
	->setCaption(
	javelin_tag(
	'a',
	array(
	'href' => '/project/create/',
	'mustcapture' => true,
	'sigil' => 'project-create',
	),
	pht('Create New Project')))
	->setDatasource('/typeahead/common/projects/'));

	foreach ($aux_fields as $aux_field) {
	$aux_control = $aux_field->renderEditControl();
	$form->appendChild($aux_control);
	}

	require_celerity_resource('aphront-error-view-css');

	Javelin::initBehavior('project-create', array(
	'tokenizerID' => $project_tokenizer_id,
	));

	if ($files) {
	$file_display = mpull($files, 'getName');
	$file_display = phutil_implode_html(phutil_tag('br'), $file_display);

	$form->appendChild(
	id(new AphrontFormMarkupControl())
	->setLabel(pht('Files'))
	->setValue($file_display));

	foreach ($files as $ii => $file) {
	$form->addHiddenInput('files['.$ii.']', $file->getPHID());
	}
	}


	$description_control = new PhabricatorRemarkupControl();
	// "Upsell" creating tasks via email in create flows if the instance is
	// configured for this awesomeness.
	$email_create = PhabricatorEnv::getEnvConfig(
	'metamta.maniphest.public-create-email');
	if (!$task->getID() && $email_create) {
	$email_hint = pht(
	'You can also create tasks by sending an email to: %s',
	phutil_tag('tt', array(), $email_create));
	$description_control->setCaption($email_hint);
	}

	$description_control
	->setLabel(pht('Description'))
	->setName('description')
	->setID('description-textarea')
	->setValue($task->getDescription())
	->setUser($user);

	$form
	->appendChild($description_control);


	if ($request->isAjax()) {
	$dialog = id(new AphrontDialogView())
	->setUser($user)
	->setWidth(AphrontDialogView::WIDTH_FULL)
	->setTitle($header_name)
	->appendChild(
	array(
	$error_view,
	$form,
	))
	->addCancelButton($cancel_uri)
	->addSubmitButton($button_name);
	return id(new AphrontDialogResponse())->setDialog($dialog);
	}

	$form
	->appendChild(
	id(new AphrontFormSubmitControl())
	->addCancelButton($cancel_uri)
	->setValue($button_name));

	$form_box = id(new PHUIFormBoxView())
	->setHeaderText($header_name)
	->setFormError($error_view)
	->setForm($form);

	$preview = id(new PHUIRemarkupPreviewPanel())
	->setHeader(pht('Description Preview'))
	->setControlID('description-textarea')
	->setPreviewURI($this->getApplicationURI('task/descriptionpreview/'));

	if ($task->getID()) {
	$page_objects = array( $task->getPHID() );
	} else {
	$page_objects = array();
	}

	$crumbs = $this->buildApplicationCrumbs();
	$crumbs->addCrumb(
	id(new PhabricatorCrumbView())
	->setName($header_name));

	return $this->buildApplicationPage(
	array(
	$crumbs,
	$form_box,
	$preview,
	),
	array(
	'title' => $header_name,
	'pageObjects' => $page_objects,
	'device' => true,
	));
	}
	}
	diff --git a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
	index 09d4b44740..eaeaf815de 100644
	--- a/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
	+++ b/src/applications/transactions/editor/PhabricatorApplicationTransactionEditor.php
	@@ -1,1550 +1,1551 @@
	<?php

	/**
	* @task mail Sending Mail
	* @task feed Publishing Feed Stories
	* @task search Search Index
	*/
	abstract class PhabricatorApplicationTransactionEditor
	extends PhabricatorEditor {

	private $contentSource;
	private $object;
	private $xactions;

	private $isNewObject;
	private $mentionedPHIDs;
	private $continueOnNoEffect;
	private $continueOnMissingFields;
	private $parentMessageID;
	private $heraldAdapter;
	private $heraldTranscript;
	private $subscribers;

	private $isPreview;

	/**
	* When the editor tries to apply transactions that have no effect, should
	* it raise an exception (default) or drop them and continue?
	*
	* Generally, you will set this flag for edits coming from "Edit" interfaces,
	* and leave it cleared for edits coming from "Comment" interfaces, so the
	* user will get a useful error if they try to submit a comment that does
	* nothing (e.g., empty comment with a status change that has already been
	* performed by another user).
	*
	* @param bool True to drop transactions without effect and continue.
	* @return this
	*/
	public function setContinueOnNoEffect($continue) {
	$this->continueOnNoEffect = $continue;
	return $this;
	}

	public function getContinueOnNoEffect() {
	return $this->continueOnNoEffect;
	}


	/**
	* When the editor tries to apply transactions which don't populate all of
	* an object's required fields, should it raise an exception (default) or
	* drop them and continue?
	*
	* For example, if a user adds a new required custom field (like "Severity")
	* to a task, all existing tasks won't have it populated. When users
	* manually edit existing tasks, it's usually desirable to have them provide
	* a severity. However, other operations (like batch editing just the
	* owner of a task) will fail by default.
	*
	* By setting this flag for edit operations which apply to specific fields
	* (like the priority, batch, and merge editors in Maniphest), these
	* operations can continue to function even if an object is outdated.
	*
	* @param bool True to continue when transactions don't completely satisfy
	* all required fields.
	* @return this
	*/
	public function setContinueOnMissingFields($continue_on_missing_fields) {
	$this->continueOnMissingFields = $continue_on_missing_fields;
	return $this;
	}

	public function getContinueOnMissingFields() {
	return $this->continueOnMissingFields;
	}


	/**
	* Not strictly necessary, but reply handlers ideally set this value to
	* make email threading work better.
	*/
	public function setParentMessageID($parent_message_id) {
	$this->parentMessageID = $parent_message_id;
	return $this;
	}
	public function getParentMessageID() {
	return $this->parentMessageID;
	}

	protected function getIsNewObject() {
	return $this->isNewObject;
	}

	protected function getMentionedPHIDs() {
	return $this->mentionedPHIDs;
	}

	public function setIsPreview($is_preview) {
	$this->isPreview = $is_preview;
	return $this;
	}

	public function getIsPreview() {
	return $this->isPreview;
	}

	public function getTransactionTypes() {
	$types = array();

	if ($this->object instanceof PhabricatorSubscribableInterface) {
	$types[] = PhabricatorTransactions::TYPE_SUBSCRIBERS;
	}

	if ($this->object instanceof PhabricatorCustomFieldInterface) {
	$types[] = PhabricatorTransactions::TYPE_CUSTOMFIELD;
	}

	return $types;
	}

	private function adjustTransactionValues(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {
	$old = $this->getTransactionOldValue($object, $xaction);
	$xaction->setOldValue($old);

	$new = $this->getTransactionNewValue($object, $xaction);
	$xaction->setNewValue($new);
	}

	private function getTransactionOldValue(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {
	switch ($xaction->getTransactionType()) {
	case PhabricatorTransactions::TYPE_SUBSCRIBERS:
	return array_values($this->subscribers);
	case PhabricatorTransactions::TYPE_VIEW_POLICY:
	return $object->getViewPolicy();
	case PhabricatorTransactions::TYPE_EDIT_POLICY:
	return $object->getEditPolicy();
	case PhabricatorTransactions::TYPE_EDGE:
	$edge_type = $xaction->getMetadataValue('edge:type');
	if (!$edge_type) {
	throw new Exception("Edge transaction has no 'edge:type'!");
	}

	$old_edges = array();
	if ($object->getPHID()) {
	$edge_src = $object->getPHID();

	$old_edges = id(new PhabricatorEdgeQuery())
	->withSourcePHIDs(array($edge_src))
	->withEdgeTypes(array($edge_type))
	->needEdgeData(true)
	->execute();

	$old_edges = $old_edges[$edge_src][$edge_type];
	}
	return $old_edges;
	case PhabricatorTransactions::TYPE_CUSTOMFIELD:
	// NOTE: Custom fields have their old value pre-populated when they are
	// built by PhabricatorCustomFieldList.
	return $xaction->getOldValue();
	default:
	return $this->getCustomTransactionOldValue($object, $xaction);
	}
	}

	private function getTransactionNewValue(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {
	switch ($xaction->getTransactionType()) {
	case PhabricatorTransactions::TYPE_SUBSCRIBERS:
	return $this->getPHIDTransactionNewValue($xaction);
	case PhabricatorTransactions::TYPE_VIEW_POLICY:
	case PhabricatorTransactions::TYPE_EDIT_POLICY:
	return $xaction->getNewValue();
	case PhabricatorTransactions::TYPE_EDGE:
	return $this->getEdgeTransactionNewValue($xaction);
	case PhabricatorTransactions::TYPE_CUSTOMFIELD:
	$field = $this->getCustomFieldForTransaction($object, $xaction);
	return $field->getNewValueFromApplicationTransactions($xaction);
	default:
	return $this->getCustomTransactionNewValue($object, $xaction);
	}
	}

	protected function getCustomTransactionOldValue(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {
	throw new Exception("Capability not supported!");
	}

	protected function getCustomTransactionNewValue(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {
	throw new Exception("Capability not supported!");
	}

	protected function transactionHasEffect(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {

	switch ($xaction->getTransactionType()) {
	case PhabricatorTransactions::TYPE_COMMENT:
	return $xaction->hasComment();
	case PhabricatorTransactions::TYPE_CUSTOMFIELD:
	$field = $this->getCustomFieldForTransaction($object, $xaction);
	return $field->getApplicationTransactionHasEffect($xaction);
	}

	return ($xaction->getOldValue() !== $xaction->getNewValue());
	}

	protected function shouldApplyInitialEffects(
	PhabricatorLiskDAO $object,
	array $xactions) {
	return false;
	}

	protected function applyInitialEffects(
	PhabricatorLiskDAO $object,
	array $xactions) {
	throw new Exception('Not implemented.');
	}

	private function applyInternalEffects(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {
	switch ($xaction->getTransactionType()) {
	case PhabricatorTransactions::TYPE_VIEW_POLICY:
	$object->setViewPolicy($xaction->getNewValue());
	break;
	case PhabricatorTransactions::TYPE_EDIT_POLICY:
	$object->setEditPolicy($xaction->getNewValue());
	break;
	case PhabricatorTransactions::TYPE_CUSTOMFIELD:
	$field = $this->getCustomFieldForTransaction($object, $xaction);
	return $field->applyApplicationTransactionInternalEffects($xaction);
	}
	return $this->applyCustomInternalTransaction($object, $xaction);
	}

	private function applyExternalEffects(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {
	switch ($xaction->getTransactionType()) {
	case PhabricatorTransactions::TYPE_SUBSCRIBERS:
	$subeditor = id(new PhabricatorSubscriptionsEditor())
	->setObject($object)
	->setActor($this->requireActor());

	$old_map = array_fuse($xaction->getOldValue());
	$new_map = array_fuse($xaction->getNewValue());

	$subeditor->unsubscribe(
	array_keys(
	array_diff_key($old_map, $new_map)));

	$subeditor->subscribeExplicit(
	array_keys(
	array_diff_key($new_map, $old_map)));

	$subeditor->save();

	// for the rest of these edits, subscribers should include those just
	// added as well as those just removed.
	$subscribers = array_unique(array_merge(
	$this->subscribers,
	$xaction->getOldValue(),
	$xaction->getNewValue()));
	$this->subscribers = $subscribers;

	break;
	case PhabricatorTransactions::TYPE_EDGE:
	$old = $xaction->getOldValue();
	$new = $xaction->getNewValue();
	$src = $object->getPHID();
	$type = $xaction->getMetadataValue('edge:type');

	foreach ($new as $dst_phid => $edge) {
	$new[$dst_phid]['src'] = $src;
	}

	$editor = id(new PhabricatorEdgeEditor())
	->setActor($this->getActor());

	foreach ($old as $dst_phid => $edge) {
	if (!empty($new[$dst_phid])) {
	if ($old[$dst_phid]['data'] === $new[$dst_phid]['data']) {
	continue;
	}
	}
	$editor->removeEdge($src, $type, $dst_phid);
	}

	foreach ($new as $dst_phid => $edge) {
	if (!empty($old[$dst_phid])) {
	if ($old[$dst_phid]['data'] === $new[$dst_phid]['data']) {
	continue;
	}
	}

	$data = array(
	'data' => $edge['data'],
	);

	$editor->addEdge($src, $type, $dst_phid, $data);
	}

	$editor->save();
	break;
	case PhabricatorTransactions::TYPE_CUSTOMFIELD:
	$field = $this->getCustomFieldForTransaction($object, $xaction);
	return $field->applyApplicationTransactionExternalEffects($xaction);
	}

	return $this->applyCustomExternalTransaction($object, $xaction);
	}

	protected function applyCustomInternalTransaction(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {
	throw new Exception("Capability not supported!");
	}

	protected function applyCustomExternalTransaction(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {
	throw new Exception("Capability not supported!");
	}

	protected function applyFinalEffects(
	PhabricatorLiskDAO $object,
	array $xactions) {
	}

	public function setContentSource(PhabricatorContentSource $content_source) {
	$this->contentSource = $content_source;
	return $this;
	}

	public function setContentSourceFromRequest(AphrontRequest $request) {
	return $this->setContentSource(
	PhabricatorContentSource::newFromRequest($request));
	}

	public function getContentSource() {
	return $this->contentSource;
	}

	final public function applyTransactions(
	PhabricatorLiskDAO $object,
	array $xactions) {

	$this->object = $object;
	$this->xactions = $xactions;
	$this->isNewObject = ($object->getPHID() === null);

	$this->validateEditParameters($object, $xactions);

	$actor = $this->requireActor();

	$this->loadSubscribers($object);

	$xactions = $this->applyImplicitCC($object, $xactions);

	$mention_xaction = $this->buildMentionTransaction($object, $xactions);
	if ($mention_xaction) {
	$xactions[] = $mention_xaction;
	}

	$xactions = $this->combineTransactions($xactions);

	foreach ($xactions as $xaction) {
	// TODO: This needs to be more sophisticated once we have meta-policies.
	$xaction->setViewPolicy(PhabricatorPolicies::POLICY_PUBLIC);
	$xaction->setEditPolicy($actor->getPHID());

	$xaction->setAuthorPHID($actor->getPHID());
	$xaction->setContentSource($this->getContentSource());
	+ $xaction->attachViewer($this->getActor());
	}

	$is_preview = $this->getIsPreview();
	$read_locking = false;
	$transaction_open = false;

	if (!$is_preview) {
	$errors = array();
	$type_map = mgroup($xactions, 'getTransactionType');
	foreach ($this->getTransactionTypes() as $type) {
	$type_xactions = idx($type_map, $type, array());
	$errors[] = $this->validateTransaction($object, $type, $type_xactions);
	}

	$errors = array_mergev($errors);

	$continue_on_missing = $this->getContinueOnMissingFields();
	foreach ($errors as $key => $error) {
	if ($continue_on_missing && $error->getIsMissingFieldError()) {
	unset($errors[$key]);
	}
	}

	if ($errors) {
	throw new PhabricatorApplicationTransactionValidationException($errors);
	}

	if ($object->getID()) {
	foreach ($xactions as $xaction) {

	// If any of the transactions require a read lock, hold one and
	// reload the object. We need to do this fairly early so that the
	// call to `adjustTransactionValues()` (which populates old values)
	// is based on the synchronized state of the object, which may differ
	// from the state when it was originally loaded.

	if ($this->shouldReadLock($object, $xaction)) {
	$object->openTransaction();
	$object->beginReadLocking();
	$transaction_open = true;
	$read_locking = true;
	$object->reload();
	break;
	}
	}
	}

	if ($this->shouldApplyInitialEffects($object, $xactions)) {
	if (!$transaction_open) {
	$object->openTransaction();
	$transaction_open = true;
	}
	}
	}

	if ($this->shouldApplyInitialEffects($object, $xactions)) {
	$this->applyInitialEffects($object, $xactions);
	}

	foreach ($xactions as $xaction) {
	$this->adjustTransactionValues($object, $xaction);
	}

	$xactions = $this->filterTransactions($object, $xactions);

	if (!$xactions) {
	if ($read_locking) {
	$object->endReadLocking();
	$read_locking = false;
	}
	if ($transaction_open) {
	$object->killTransaction();
	$transaction_open = false;
	}
	return array();
	}

	$xactions = $this->sortTransactions($xactions);

	if ($is_preview) {
	$this->loadHandles($xactions);
	return $xactions;
	}

	$comment_editor = id(new PhabricatorApplicationTransactionCommentEditor())
	->setActor($actor)
	->setContentSource($this->getContentSource());

	if (!$transaction_open) {
	$object->openTransaction();
	}

	foreach ($xactions as $xaction) {
	$this->applyInternalEffects($object, $xaction);
	}

	$object->save();

	foreach ($xactions as $xaction) {
	$xaction->setObjectPHID($object->getPHID());
	if ($xaction->getComment()) {
	$xaction->setPHID($xaction->generatePHID());
	$comment_editor->applyEdit($xaction, $xaction->getComment());
	} else {
	$xaction->save();
	}
	}

	foreach ($xactions as $xaction) {
	$this->applyExternalEffects($object, $xaction);
	}

	if ($this->supportsHerald()) {
	$this->applyHeraldRules($object, $xactions);
	}

	$this->applyFinalEffects($object, $xactions);

	if ($read_locking) {
	$object->endReadLocking();
	$read_locking = false;
	}

	$object->saveTransaction();

	$this->loadHandles($xactions);

	$mail = null;
	if ($this->shouldSendMail($object, $xactions)) {
	$mail = $this->sendMail($object, $xactions);
	}

	if ($this->supportsSearch()) {
	id(new PhabricatorSearchIndexer())
	->indexDocumentByPHID($object->getPHID());
	}

	if ($this->supportsFeed()) {
	$mailed = array();
	if ($mail) {
	$mailed = $mail->buildRecipientList();
	}
	$this->publishFeedStory(
	$object,
	$xactions,
	$mailed);
	}

	$this->didApplyTransactions($xactions);

	if ($object instanceof PhabricatorCustomFieldInterface) {
	// Maybe this makes more sense to move into the search index itself? For
	// now I'm putting it here since I think we might end up with things that
	// need it to be up to date once the next page loads, but if we don't go
	// there we we could move it into search once search moves to the daemons.

	$fields = PhabricatorCustomField::getObjectFields(
	$object,
	PhabricatorCustomField::ROLE_APPLICATIONSEARCH);
	$fields->readFieldsFromStorage($object);
	$fields->rebuildIndexes($object);
	}

	return $xactions;
	}

	protected function didApplyTransactions(array $xactions) {
	// Hook for subclasses.
	return;
	}


	/**
	* Determine if the editor should hold a read lock on the object while
	* applying a transaction.
	*
	* If the editor does not hold a lock, two editors may read an object at the
	* same time, then apply their changes without any synchronization. For most
	* transactions, this does not matter much. However, it is important for some
	* transactions. For example, if an object has a transaction count on it, both
	* editors may read the object with `count = 23`, then independently update it
	* and save the object with `count = 24` twice. This will produce the wrong
	* state: the object really has 25 transactions, but the count is only 24.
	*
	* Generally, transactions fall into one of four buckets:
	*
	* - Append operations: Actions like adding a comment to an object purely
	* add information to its state, and do not depend on the current object
	* state in any way. These transactions never need to hold locks.
	* - Overwrite operations: Actions like changing the title or description
	* of an object replace the current value with a new value, so the end
	* state is consistent without a lock. We currently do not lock these
	* transactions, although we may in the future.
	* - Edge operations: Edge and subscription operations have internal
	* synchronization which limits the damage race conditions can cause.
	* We do not currently lock these transactions, although we may in the
	* future.
	* - Update operations: Actions like incrementing a count on an object.
	* These operations generally should use locks, unless it is not
	* important that the state remain consistent in the presence of races.
	*
	* @param PhabricatorLiskDAO Object being updated.
	* @param PhabricatorApplicationTransaction Transaction being applied.
	* @return bool True to synchronize the edit with a lock.
	*/
	protected function shouldReadLock(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {
	return false;
	}

	private function loadHandles(array $xactions) {
	$phids = array();
	foreach ($xactions as $key => $xaction) {
	$phids[$key] = $xaction->getRequiredHandlePHIDs();
	}
	$handles = array();
	$merged = array_mergev($phids);
	if ($merged) {
	$handles = id(new PhabricatorHandleQuery())
	->setViewer($this->requireActor())
	->withPHIDs($merged)
	->execute();
	}
	foreach ($xactions as $key => $xaction) {
	$xaction->setHandles(array_select_keys($handles, $phids[$key]));
	}
	}

	private function loadSubscribers(PhabricatorLiskDAO $object) {
	if ($object->getPHID() &&
	($object instanceof PhabricatorSubscribableInterface)) {
	$subs = PhabricatorSubscribersQuery::loadSubscribersForPHID(
	$object->getPHID());
	$this->subscribers = array_fuse($subs);
	} else {
	$this->subscribers = array();
	}
	}

	private function validateEditParameters(
	PhabricatorLiskDAO $object,
	array $xactions) {

	if (!$this->getContentSource()) {
	throw new Exception(
	"Call setContentSource() before applyTransactions()!");
	}

	// Do a bunch of sanity checks that the incoming transactions are fresh.
	// They should be unsaved and have only "transactionType" and "newValue"
	// set.

	$types = array_fill_keys($this->getTransactionTypes(), true);

	assert_instances_of($xactions, 'PhabricatorApplicationTransaction');
	foreach ($xactions as $xaction) {
	if ($xaction->getPHID() \|\| $xaction->getID()) {
	throw new Exception(
	"You can not apply transactions which already have IDs/PHIDs!");
	}
	if ($xaction->getObjectPHID()) {
	throw new Exception(
	"You can not apply transactions which already have objectPHIDs!");
	}
	if ($xaction->getAuthorPHID()) {
	throw new Exception(
	"You can not apply transactions which already have authorPHIDs!");
	}
	if ($xaction->getCommentPHID()) {
	throw new Exception(
	"You can not apply transactions which already have commentPHIDs!");
	}
	if ($xaction->getCommentVersion() !== 0) {
	throw new Exception(
	"You can not apply transactions which already have commentVersions!");
	}

	$exempt_types = array(
	// CustomField logic currently prefills these before we enter the
	// transaction editor.
	PhabricatorTransactions::TYPE_CUSTOMFIELD => true,

	// TODO: Remove this, this edge type is encumbered with a bunch of
	// legacy nonsense.
	ManiphestTransactionPro::TYPE_EDGE => true,
	);

	if (empty($exempt_types[$xaction->getTransactionType()])) {
	if ($xaction->getOldValue() !== null) {
	throw new Exception(
	"You can not apply transactions which already have oldValue!");
	}
	}

	$type = $xaction->getTransactionType();
	if (empty($types[$type])) {
	throw new Exception("Transaction has unknown type '{$type}'.");
	}
	}

	// The actor must have permission to view and edit the object.

	$actor = $this->requireActor();

	PhabricatorPolicyFilter::requireCapability(
	$actor,
	$object,
	PhabricatorPolicyCapability::CAN_VIEW);

	// TODO: This should be "$object", not "$xaction", but probably breaks a
	// lot of stuff if fixed -- you don't need to be able to edit in order to
	// comment. Instead, transactions should specify the capabilities they
	// require.

	/*

	PhabricatorPolicyFilter::requireCapability(
	$actor,
	$xaction,
	PhabricatorPolicyCapability::CAN_EDIT);

	*/
	}

	private function buildMentionTransaction(
	PhabricatorLiskDAO $object,
	array $xactions) {

	if (!($object instanceof PhabricatorSubscribableInterface)) {
	return null;
	}

	$texts = array();
	foreach ($xactions as $xaction) {
	$texts[] = $this->getMentionableTextsFromTransaction($xaction);
	}
	$texts = array_mergev($texts);

	$phids = PhabricatorMarkupEngine::extractPHIDsFromMentions($texts);

	$this->mentionedPHIDs = $phids;

	if ($object->getPHID()) {
	// Don't try to subscribe already-subscribed mentions: we want to generate
	// a dialog about an action having no effect if the user explicitly adds
	// existing CCs, but not if they merely mention existing subscribers.
	$phids = array_diff($phids, $this->subscribers);
	}

	foreach ($phids as $key => $phid) {
	if ($object->isAutomaticallySubscribed($phid)) {
	unset($phids[$key]);
	}
	}
	$phids = array_values($phids);

	if (!$phids) {
	return null;
	}

	$xaction = newv(get_class(head($xactions)), array());
	$xaction->setTransactionType(PhabricatorTransactions::TYPE_SUBSCRIBERS);
	$xaction->setNewValue(array('+' => $phids));

	return $xaction;
	}

	protected function getMentionableTextsFromTransaction(
	PhabricatorApplicationTransaction $transaction) {
	$texts = array();
	if ($transaction->getComment()) {
	$texts[] = $transaction->getComment()->getContent();
	}
	return $texts;
	}

	protected function mergeTransactions(
	PhabricatorApplicationTransaction $u,
	PhabricatorApplicationTransaction $v) {

	$type = $u->getTransactionType();

	switch ($type) {
	case PhabricatorTransactions::TYPE_SUBSCRIBERS:
	return $this->mergePHIDOrEdgeTransactions($u, $v);
	case PhabricatorTransactions::TYPE_EDGE:
	$u_type = $u->getMetadataValue('edge:type');
	$v_type = $v->getMetadataValue('edge:type');
	if ($u_type == $v_type) {
	return $this->mergePHIDOrEdgeTransactions($u, $v);
	}
	return null;
	}

	// By default, do not merge the transactions.
	return null;
	}


	/**
	* Attempt to combine similar transactions into a smaller number of total
	* transactions. For example, two transactions which edit the title of an
	* object can be merged into a single edit.
	*/
	private function combineTransactions(array $xactions) {
	$stray_comments = array();

	$result = array();
	$types = array();
	foreach ($xactions as $key => $xaction) {
	$type = $xaction->getTransactionType();
	if (isset($types[$type])) {
	foreach ($types[$type] as $other_key) {
	$merged = $this->mergeTransactions($result[$other_key], $xaction);
	if ($merged) {
	$result[$other_key] = $merged;

	if ($xaction->getComment() &&
	($xaction->getComment() !== $merged->getComment())) {
	$stray_comments[] = $xaction->getComment();
	}

	if ($result[$other_key]->getComment() &&
	($result[$other_key]->getComment() !== $merged->getComment())) {
	$stray_comments[] = $result[$other_key]->getComment();
	}

	// Move on to the next transaction.
	continue 2;
	}
	}
	}
	$result[$key] = $xaction;
	$types[$type][] = $key;
	}

	// If we merged any comments away, restore them.
	foreach ($stray_comments as $comment) {
	$xaction = newv(get_class(head($result)), array());
	$xaction->setTransactionType(PhabricatorTransactions::TYPE_COMMENT);
	$xaction->setComment($comment);
	$result[] = $xaction;
	}

	return array_values($result);
	}

	protected function mergePHIDOrEdgeTransactions(
	PhabricatorApplicationTransaction $u,
	PhabricatorApplicationTransaction $v) {

	$result = $u->getNewValue();
	foreach ($v->getNewValue() as $key => $value) {
	$result[$key] = array_merge($value, idx($result, $key, array()));
	}
	$u->setNewValue($result);

	return $u;
	}

	protected function getPHIDTransactionNewValue(
	PhabricatorApplicationTransaction $xaction) {

	$old = array_fuse($xaction->getOldValue());

	$new = $xaction->getNewValue();
	$new_add = idx($new, '+', array());
	unset($new['+']);
	$new_rem = idx($new, '-', array());
	unset($new['-']);
	$new_set = idx($new, '=', null);
	if ($new_set !== null) {
	$new_set = array_fuse($new_set);
	}
	unset($new['=']);

	if ($new) {
	throw new Exception(
	"Invalid 'new' value for PHID transaction. Value should contain only ".
	"keys '+' (add PHIDs), '-' (remove PHIDs) and '=' (set PHIDS).");
	}

	$result = array();

	foreach ($old as $phid) {
	if ($new_set !== null && empty($new_set[$phid])) {
	continue;
	}
	$result[$phid] = $phid;
	}

	if ($new_set !== null) {
	foreach ($new_set as $phid) {
	$result[$phid] = $phid;
	}
	}

	foreach ($new_add as $phid) {
	$result[$phid] = $phid;
	}

	foreach ($new_rem as $phid) {
	unset($result[$phid]);
	}

	return array_values($result);
	}

	protected function getEdgeTransactionNewValue(
	PhabricatorApplicationTransaction $xaction) {

	$new = $xaction->getNewValue();
	$new_add = idx($new, '+', array());
	unset($new['+']);
	$new_rem = idx($new, '-', array());
	unset($new['-']);
	$new_set = idx($new, '=', null);
	unset($new['=']);

	if ($new) {
	throw new Exception(
	"Invalid 'new' value for Edge transaction. Value should contain only ".
	"keys '+' (add edges), '-' (remove edges) and '=' (set edges).");
	}

	$old = $xaction->getOldValue();

	$lists = array($new_set, $new_add, $new_rem);
	foreach ($lists as $list) {
	$this->checkEdgeList($list);
	}

	$result = array();
	foreach ($old as $dst_phid => $edge) {
	if ($new_set !== null && empty($new_set[$dst_phid])) {
	continue;
	}
	$result[$dst_phid] = $this->normalizeEdgeTransactionValue(
	$xaction,
	$edge);
	}

	if ($new_set !== null) {
	foreach ($new_set as $dst_phid => $edge) {
	$result[$dst_phid] = $this->normalizeEdgeTransactionValue(
	$xaction,
	$edge);
	}
	}

	foreach ($new_add as $dst_phid => $edge) {
	$result[$dst_phid] = $this->normalizeEdgeTransactionValue(
	$xaction,
	$edge);
	}

	foreach ($new_rem as $dst_phid => $edge) {
	unset($result[$dst_phid]);
	}

	return $result;
	}

	private function checkEdgeList($list) {
	if (!$list) {
	return;
	}
	foreach ($list as $key => $item) {
	if (phid_get_type($key) === PhabricatorPHIDConstants::PHID_TYPE_UNKNOWN) {
	throw new Exception(
	"Edge transactions must have destination PHIDs as in edge ".
	"lists (found key '{$key}').");
	}
	if (!is_array($item) && $item !== $key) {
	throw new Exception(
	"Edge transactions must have PHIDs or edge specs as values ".
	"(found value '{$item}').");
	}
	}
	}

	protected function normalizeEdgeTransactionValue(
	PhabricatorApplicationTransaction $xaction,
	$edge) {

	if (!is_array($edge)) {
	$edge = array(
	'dst' => $edge,
	);
	}

	$edge_type = $xaction->getMetadataValue('edge:type');

	if (empty($edge['type'])) {
	$edge['type'] = $edge_type;
	} else {
	if ($edge['type'] != $edge_type) {
	$this_type = $edge['type'];
	throw new Exception(
	"Edge transaction includes edge of type '{$this_type}', but ".
	"transaction is of type '{$edge_type}'. Each edge transaction must ".
	"alter edges of only one type.");
	}
	}

	if (!isset($edge['data'])) {
	$edge['data'] = null;
	}

	return $edge;
	}

	protected function sortTransactions(array $xactions) {
	$head = array();
	$tail = array();

	// Move bare comments to the end, so the actions precede them.
	foreach ($xactions as $xaction) {
	$type = $xaction->getTransactionType();
	if ($type == PhabricatorTransactions::TYPE_COMMENT) {
	$tail[] = $xaction;
	} else {
	$head[] = $xaction;
	}
	}

	return array_values(array_merge($head, $tail));
	}


	protected function filterTransactions(
	PhabricatorLiskDAO $object,
	array $xactions) {

	$type_comment = PhabricatorTransactions::TYPE_COMMENT;

	$no_effect = array();
	$has_comment = false;
	$any_effect = false;
	foreach ($xactions as $key => $xaction) {
	if ($this->transactionHasEffect($object, $xaction)) {
	if ($xaction->getTransactionType() != $type_comment) {
	$any_effect = true;
	}
	} else {
	$no_effect[$key] = $xaction;
	}
	if ($xaction->hasComment()) {
	$has_comment = true;
	}
	}

	if (!$no_effect) {
	return $xactions;
	}

	if (!$this->getContinueOnNoEffect() && !$this->getIsPreview()) {
	throw new PhabricatorApplicationTransactionNoEffectException(
	$no_effect,
	$any_effect,
	$has_comment);
	}

	if (!$any_effect && !$has_comment) {
	// If we only have empty comment transactions, just drop them all.
	return array();
	}

	foreach ($no_effect as $key => $xaction) {
	if ($xaction->getComment()) {
	$xaction->setTransactionType($type_comment);
	$xaction->setOldValue(null);
	$xaction->setNewValue(null);
	} else {
	unset($xactions[$key]);
	}
	}

	return $xactions;
	}


	/**
	* Hook for validating transactions. This callback will be invoked for each
	* available transaction type, even if an edit does not apply any transactions
	* of that type. This allows you to raise exceptions when required fields are
	* missing, by detecting that the object has no field value and there is no
	* transaction which sets one.
	*
	* @param PhabricatorLiskDAO Object being edited.
	* @param string Transaction type to validate.
	* @param list<PhabricatorApplicationTransaction> Transactions of given type,
	* which may be empty if the edit does not apply any transactions of the
	* given type.
	* @return list<PhabricatorApplicationTransactionValidationError> List of
	* validation errors.
	*/
	protected function validateTransaction(
	PhabricatorLiskDAO $object,
	$type,
	array $xactions) {

	$errors = array();
	switch ($type) {
	case PhabricatorTransactions::TYPE_CUSTOMFIELD:
	$groups = array();
	foreach ($xactions as $xaction) {
	$groups[$xaction->getMetadataValue('customfield:key')][] = $xaction;
	}

	$field_list = PhabricatorCustomField::getObjectFields(
	$object,
	PhabricatorCustomField::ROLE_EDIT);

	$role_xactions = PhabricatorCustomField::ROLE_APPLICATIONTRANSACTIONS;
	foreach ($field_list->getFields() as $field) {
	if (!$field->shouldEnableForRole($role_xactions)) {
	continue;
	}
	$errors[] = $field->validateApplicationTransactions(
	$this,
	$type,
	idx($groups, $field->getFieldKey(), array()));
	}
	break;
	}

	return array_mergev($errors);
	}


	/* -( Implicit CCs )------------------------------------------------------- */


	/**
	* When a user interacts with an object, we might want to add them to CC.
	*/
	final public function applyImplicitCC(
	PhabricatorLiskDAO $object,
	array $xactions) {

	if (!($object instanceof PhabricatorSubscribableInterface)) {
	// If the object isn't subscribable, we can't CC them.
	return $xactions;
	}

	$actor_phid = $this->requireActor()->getPHID();
	if ($object->isAutomaticallySubscribed($actor_phid)) {
	// If they're auto-subscribed, don't CC them.
	return $xactions;
	}

	$should_cc = false;
	foreach ($xactions as $xaction) {
	if ($this->shouldImplyCC($object, $xaction)) {
	$should_cc = true;
	break;
	}
	}

	if (!$should_cc) {
	// Only some types of actions imply a CC (like adding a comment).
	return $xactions;
	}

	if ($object->getPHID()) {
	if (isset($this->subscribers[$actor_phid])) {
	// If the user is already subscribed, don't implicitly CC them.
	return $xactions;
	}

	$unsub = PhabricatorEdgeQuery::loadDestinationPHIDs(
	$object->getPHID(),
	PhabricatorEdgeConfig::TYPE_OBJECT_HAS_UNSUBSCRIBER);
	$unsub = array_fuse($unsub);
	if (isset($unsub[$actor_phid])) {
	// If the user has previously unsubscribed from this object explicitly,
	// don't implicitly CC them.
	return $xactions;
	}
	}

	$xaction = newv(get_class(head($xactions)), array());
	$xaction->setTransactionType(PhabricatorTransactions::TYPE_SUBSCRIBERS);
	$xaction->setNewValue(array('+' => array($actor_phid)));

	array_unshift($xactions, $xaction);

	return $xactions;
	}

	protected function shouldImplyCC(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {

	switch ($xaction->getTransactionType()) {
	case PhabricatorTransactions::TYPE_COMMENT:
	return true;
	default:
	return false;
	}
	}


	/* -( Sending Mail )------------------------------------------------------- */


	/**
	* @task mail
	*/
	protected function shouldSendMail(
	PhabricatorLiskDAO $object,
	array $xactions) {
	return false;
	}


	/**
	* @task mail
	*/
	protected function sendMail(
	PhabricatorLiskDAO $object,
	array $xactions) {

	$email_to = array_unique($this->getMailTo($object));
	$email_cc = array_unique($this->getMailCC($object));

	$phids = array_merge($email_to, $email_cc);
	$handles = id(new PhabricatorHandleQuery())
	->setViewer($this->requireActor())
	->withPHIDs($phids)
	->execute();

	$template = $this->buildMailTemplate($object);
	$body = $this->buildMailBody($object, $xactions);

	$mail_tags = $this->getMailTags($object, $xactions);

	$action = $this->getStrongestAction($object, $xactions)->getActionName();

	$template
	->setFrom($this->requireActor()->getPHID())
	->setSubjectPrefix($this->getMailSubjectPrefix())
	->setVarySubjectPrefix('['.$action.']')
	->setThreadID($this->getMailThreadID($object), $this->getIsNewObject())
	->setRelatedPHID($object->getPHID())
	->setExcludeMailRecipientPHIDs($this->getExcludeMailRecipientPHIDs())
	->setMailTags($mail_tags)
	->setIsBulk(true)
	->setBody($body->render());

	if ($this->getParentMessageID()) {
	$template->setParentMessageID($this->getParentMessageID());
	}

	$mails = $this
	->buildReplyHandler($object)
	->multiplexMail(
	$template,
	array_select_keys($handles, $email_to),
	array_select_keys($handles, $email_cc));

	foreach ($mails as $mail) {
	$mail->saveAndSend();
	}

	$template->addTos($email_to);
	$template->addCCs($email_cc);

	return $template;
	}

	protected function getMailThreadID(PhabricatorLiskDAO $object) {
	return $object->getPHID();
	}


	/**
	* @task mail
	*/
	protected function getStrongestAction(
	PhabricatorLiskDAO $object,
	array $xactions) {
	return last(msort($xactions, 'getActionStrength'));
	}


	/**
	* @task mail
	*/
	protected function buildReplyHandler(PhabricatorLiskDAO $object) {
	throw new Exception("Capability not supported.");
	}


	/**
	* @task mail
	*/
	protected function getMailSubjectPrefix() {
	throw new Exception("Capability not supported.");
	}


	/**
	* @task mail
	*/
	protected function getMailTags(
	PhabricatorLiskDAO $object,
	array $xactions) {
	$tags = array();

	foreach ($xactions as $xaction) {
	$tags[] = $xaction->getMailTags();
	}

	return array_mergev($tags);
	}


	/**
	* @task mail
	*/
	protected function buildMailTemplate(PhabricatorLiskDAO $object) {
	throw new Exception("Capability not supported.");
	}


	/**
	* @task mail
	*/
	protected function getMailTo(PhabricatorLiskDAO $object) {
	throw new Exception("Capability not supported.");
	}


	/**
	* @task mail
	*/
	protected function getMailCC(PhabricatorLiskDAO $object) {
	if ($object instanceof PhabricatorSubscribableInterface) {
	return $this->subscribers;
	}
	throw new Exception("Capability not supported.");
	}


	/**
	* @task mail
	*/
	protected function buildMailBody(
	PhabricatorLiskDAO $object,
	array $xactions) {

	$headers = array();
	$comments = array();

	foreach ($xactions as $xaction) {
	if ($xaction->shouldHideForMail()) {
	continue;
	}
	$headers[] = id(clone $xaction)->setRenderingTarget('text')->getTitle();
	$comment = $xaction->getComment();
	if ($comment && strlen($comment->getContent())) {
	$comments[] = $comment->getContent();
	}
	}

	$body = new PhabricatorMetaMTAMailBody();
	$body->addRawSection(implode("\n", $headers));

	foreach ($comments as $comment) {
	$body->addRawSection($comment);
	}

	return $body;
	}


	/* -( Publishing Feed Stories )-------------------------------------------- */


	/**
	* @task feed
	*/
	protected function supportsFeed() {
	return false;
	}


	/**
	* @task feed
	*/
	protected function getFeedStoryType() {
	return 'PhabricatorApplicationTransactionFeedStory';
	}


	/**
	* @task feed
	*/
	protected function getFeedRelatedPHIDs(
	PhabricatorLiskDAO $object,
	array $xactions) {

	return array(
	$object->getPHID(),
	$this->requireActor()->getPHID(),
	);
	}


	/**
	* @task feed
	*/
	protected function getFeedNotifyPHIDs(
	PhabricatorLiskDAO $object,
	array $xactions) {

	return array_unique(array_merge(
	$this->getMailTo($object),
	$this->getMailCC($object)));
	}


	/**
	* @task feed
	*/
	protected function getFeedStoryData(
	PhabricatorLiskDAO $object,
	array $xactions) {

	$xactions = msort($xactions, 'getActionStrength');
	$xactions = array_reverse($xactions);

	return array(
	'objectPHID' => $object->getPHID(),
	'transactionPHIDs' => mpull($xactions, 'getPHID'),
	);
	}


	/**
	* @task feed
	*/
	protected function publishFeedStory(
	PhabricatorLiskDAO $object,
	array $xactions,
	array $mailed_phids) {

	$related_phids = $this->getFeedRelatedPHIDs($object, $xactions);
	$subscribed_phids = $this->getFeedNotifyPHIDs($object, $xactions);

	$story_type = $this->getFeedStoryType();
	$story_data = $this->getFeedStoryData($object, $xactions);

	id(new PhabricatorFeedStoryPublisher())
	->setStoryType($story_type)
	->setStoryData($story_data)
	->setStoryTime(time())
	->setStoryAuthorPHID($this->requireActor()->getPHID())
	->setRelatedPHIDs($related_phids)
	->setPrimaryObjectPHID($object->getPHID())
	->setSubscribedPHIDs($subscribed_phids)
	->setMailRecipientPHIDs($mailed_phids)
	->publish();
	}


	/* -( Search Index )------------------------------------------------------- */


	/**
	* @task search
	*/
	protected function supportsSearch() {
	return false;
	}


	/* -( Herald Integration )-------------------------------------------------- */


	protected function supportsHerald() {
	return false;
	}

	protected function buildHeraldAdapter(
	PhabricatorLiskDAO $object,
	array $xactions) {
	throw new Exception('No herald adapter specified.');
	}

	private function setHeraldAdapter(HeraldAdapter $adapter) {
	$this->heraldAdapter = $adapter;
	return $this;
	}

	protected function getHeraldAdapter() {
	return $this->heraldAdapter;
	}

	private function setHeraldTranscript(HeraldTranscript $transcript) {
	$this->heraldTranscript = $transcript;
	return $this;
	}

	protected function getHeraldTranscript() {
	return $this->heraldTranscript;
	}

	private function applyHeraldRules(
	PhabricatorLiskDAO $object,
	array $xactions) {

	$adapter = $this->buildHeraldAdapter($object, $xactions);
	$xscript = HeraldEngine::loadAndApplyRules($adapter);

	$this->setHeraldAdapter($adapter);
	$this->setHeraldTranscript($xscript);

	$this->didApplyHeraldRules($object, $adapter, $xscript);
	}

	protected function didApplyHeraldRules(
	PhabricatorLiskDAO $object,
	HeraldAdapter $adapter,
	HeraldTranscript $transcript) {

	}


	/* -( Custom Fields )------------------------------------------------------ */


	/**
	* @task customfield
	*/
	private function getCustomFieldForTransaction(
	PhabricatorLiskDAO $object,
	PhabricatorApplicationTransaction $xaction) {

	$field_key = $xaction->getMetadataValue('customfield:key');
	if (!$field_key) {
	throw new Exception(
	"Custom field transaction has no 'customfield:key'!");
	}

	$field = PhabricatorCustomField::getObjectField(
	$object,
	PhabricatorCustomField::ROLE_APPLICATIONTRANSACTIONS,
	$field_key);

	if (!$field) {
	throw new Exception(
	"Custom field transaction has invalid 'customfield:key'; field ".
	"'{$field_key}' is disabled or does not exist.");
	}

	if (!$field->shouldAppearInApplicationTransactions()) {
	throw new Exception(
	"Custom field transaction '{$field_key}' does not implement ".
	"integration for ApplicationTransactions.");
	}

	return $field;
	}

	}

File Metadata

Mime Type: text/x-diff
Expires: Thu, Aug 14, 6:19 PM (1 d, 7 h ago)
Storage Engine: blob
Storage Format: Raw Data
Storage Handle: 202303
Default Alt Text: (64 KB)

No OneTemporaryActions

View Options

File Metadata

Event Timeline

No OneTemporary
Actions