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phab/src/applications/search/controller/attach/PhabricatorSearchAttachController.php
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PhabricatorSearchAttachController.php
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<?php
/*
* Copyright 2011 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
class PhabricatorSearchAttachController extends PhabricatorSearchController {
private $phid;
private $type;
private $action;
const ACTION_ATTACH = 'attach';
const ACTION_MERGE = 'merge';
const ACTION_DEPENDENCIES = 'dependencies';
public function willProcessRequest(array $data) {
$this->phid = $data['phid'];
$this->type = $data['type'];
$this->action = idx($data, 'action', self::ACTION_ATTACH);
}
public function processRequest() {
$request = $this->getRequest();
$user = $request->getUser();
$handle_data = new PhabricatorObjectHandleData(array($this->phid));
$handles = $handle_data->loadHandles();
$handle = $handles[$this->phid];
$object_type = $handle->getType();
$attach_type = $this->type;
$objects = $handle_data->loadObjects();
$object = idx($objects, $this->phid);
if (!$object) {
return new Aphront404Response();
}
if ($request->isFormPost()) {
$phids = explode(';', $request->getStr('phids'));
$phids = array_filter($phids);
$phids = array_values($phids);
switch ($this->action) {
case self::ACTION_MERGE:
return $this->performMerge($object, $handle, $phids);
case self::ACTION_DEPENDENCIES:
case self::ACTION_ATTACH:
$two_way = true;
if ($this->action == self::ACTION_DEPENDENCIES) {
$two_way = false;
$this->detectGraphCycles(
$object,
$attach_type,
$phids);
}
$this->performAttach(
$object_type,
$object,
$attach_type,
$phids,
$two_way);
return id(new AphrontReloadResponse())->setURI($handle->getURI());
default:
throw new Exception("Unsupported attach action.");
}
} else {
switch ($this->action) {
case self::ACTION_ATTACH:
case self::ACTION_DEPENDENCIES:
$phids = $object->getAttachedPHIDs($attach_type);
break;
default:
$phids = array();
break;
}
}
$strings = $this->getStrings();
$handles = id(new PhabricatorObjectHandleData($phids))
->loadHandles();
$obj_dialog = new PhabricatorObjectSelectorDialog();
$obj_dialog
->setUser($user)
->setHandles($handles)
->setFilters(array(
'assigned' => 'Assigned to Me',
'created' => 'Created By Me',
'open' => 'All Open '.$strings['target_plural_noun'],
'all' => 'All '.$strings['target_plural_noun'],
))
->setSelectedFilter($strings['selected'])
->setCancelURI($handle->getURI())
->setSearchURI('/search/select/'.$attach_type.'/')
->setTitle($strings['title'])
->setHeader($strings['header'])
->setButtonText($strings['button'])
->setInstructions($strings['instructions']);
$dialog = $obj_dialog->buildDialog();
return id(new AphrontDialogResponse())->setDialog($dialog);
}
private function applyTaskTransaction(
ManiphestTask $task,
$attach_type,
array $new_phids) {
$user = $this->getRequest()->getUser();
$editor = new ManiphestTransactionEditor();
$type = ManiphestTransactionType::TYPE_ATTACH;
$transaction = new ManiphestTransaction();
$transaction->setAuthorPHID($user->getPHID());
$transaction->setTransactionType($type);
$new = $task->getAttached();
$new[$attach_type] = array_fill_keys($new_phids, array());
$transaction->setNewValue($new);
$editor->applyTransactions($task, array($transaction));
}
private function performAttach(
$object_type,
$object,
$attach_type,
array $phids,
$two_way) {
$object_phid = $object->getPHID();
// sort() so that removing [X, Y] and then adding [Y, X] is correctly
// detected as a no-op.
sort($phids);
$old_phids = $object->getAttachedPHIDs($attach_type);
sort($old_phids);
$phids = array_values($phids);
$old_phids = array_values($old_phids);
if ($phids === $old_phids) {
return;
}
$all_phids = array_merge($phids, $old_phids);
$attach_objs = id(new PhabricatorObjectHandleData($all_phids))
->loadObjects();
// Remove PHIDs which don't actually exist, to prevent silliness.
$phids = array_keys(array_select_keys($attach_objs, $phids));
if ($phids) {
$phids = array_combine($phids, $phids);
}
// Update the primary object.
$this->writeOutboundEdges($object_type, $object, $attach_type, $phids);
if (!$two_way) {
return;
}
// Loop through all of the attached/detached objects and update them.
foreach ($attach_objs as $phid => $attach_obj) {
$attached_phids = $attach_obj->getAttachedPHIDs($object_type);
// Figure out if we're attaching or detaching this object.
if (isset($phids[$phid])) {
$attached_phids[] = $object_phid;
} else {
$attached_phids = array_fill_keys($attached_phids, true);
unset($attached_phids[$object_phid]);
$attached_phids = array_keys($attached_phids);
}
$this->writeOutboundEdges(
$attach_type,
$attach_obj,
$object_type,
$attached_phids);
}
}
private function performMerge(
ManiphestTask $task,
PhabricatorObjectHandle $handle,
array $phids) {
$user = $this->getRequest()->getUser();
$response = id(new AphrontReloadResponse())->setURI($handle->getURI());
$phids = array_fill_keys($phids, true);
unset($phids[$task->getPHID()]); // Prevent merging a task into itself.
if (!$phids) {
return $response;
}
$targets = id(new ManiphestTask())->loadAllWhere(
'phid in (%Ls) ORDER BY id ASC',
array_keys($phids));
if (empty($targets)) {
return $response;
}
$editor = new ManiphestTransactionEditor();
$task_names = array();
$merge_into_name = 'T'.$task->getID();
$cc_vector = array();
$cc_vector[] = $task->getCCPHIDs();
foreach ($targets as $target) {
$cc_vector[] = $target->getCCPHIDs();
$cc_vector[] = array(
$target->getAuthorPHID(),
$target->getOwnerPHID());
$close_task = id(new ManiphestTransaction())
->setAuthorPHID($user->getPHID())
->setTransactionType(ManiphestTransactionType::TYPE_STATUS)
->setNewValue(ManiphestTaskStatus::STATUS_CLOSED_DUPLICATE)
->setComments("\xE2\x9C\x98 Merged into {$merge_into_name}.");
$editor->applyTransactions($target, array($close_task));
$task_names[] = 'T'.$target->getID();
}
$all_ccs = array_mergev($cc_vector);
$all_ccs = array_filter($all_ccs);
$all_ccs = array_unique($all_ccs);
$task_names = implode(', ', $task_names);
$add_ccs = id(new ManiphestTransaction())
->setAuthorPHID($user->getPHID())
->setTransactionType(ManiphestTransactionType::TYPE_CCS)
->setNewValue($all_ccs)
->setComments("\xE2\x97\x80 Merged tasks: {$task_names}.");
$editor->applyTransactions($task, array($add_ccs));
return $response;
}
private function writeOutboundEdges(
$object_type,
$object,
$attach_type,
array $attach_phids) {
switch ($object_type) {
case PhabricatorPHIDConstants::PHID_TYPE_DREV:
$object->setAttachedPHIDs($attach_type, $attach_phids);
$object->save();
break;
case PhabricatorPHIDConstants::PHID_TYPE_TASK:
$this->applyTaskTransaction(
$object,
$attach_type,
$attach_phids);
break;
}
}
private function getStrings() {
switch ($this->type) {
case PhabricatorPHIDConstants::PHID_TYPE_DREV:
$noun = 'Revisions';
$selected = 'created';
break;
case PhabricatorPHIDConstants::PHID_TYPE_TASK:
$noun = 'Tasks';
$selected = 'assigned';
break;
}
switch ($this->action) {
case self::ACTION_ATTACH:
$dialog_title = "Manage Attached {$noun}";
$header_text = "Currently Attached {$noun}";
$button_text = "Save {$noun}";
$instructions = null;
break;
case self::ACTION_MERGE:
$dialog_title = "Merge Duplicate Tasks";
$header_text = "Tasks To Merge";
$button_text = "Merge {$noun}";
$instructions =
"These tasks will be merged into the current task and then closed. ".
"The current task will grow stronger.";
break;
case self::ACTION_DEPENDENCIES:
$dialog_title = "Edit Dependencies";
$header_text = "Current Dependencies";
$button_text = "Save Dependencies";
$instructions = null;
break;
}
return array(
'target_plural_noun' => $noun,
'selected' => $selected,
'title' => $dialog_title,
'header' => $header_text,
'button' => $button_text,
'instructions' => $instructions,
);
}
private function detectGraphCycles(
$object,
$attach_type,
array $phids) {
// Detect graph cycles.
$graph = new PhabricatorObjectGraph();
$graph->setEdgeType($attach_type);
$graph->addNodes(array(
$object->getPHID() => $phids,
));
$graph->loadGraph();
foreach ($phids as $phid) {
$cycle = $graph->detectCycles($phid);
if (!$cycle) {
continue;
}
// TODO: Improve this behavior so it's not all-or-nothing?
$handles = id(new PhabricatorObjectHandleData($cycle))
->loadHandles();
$names = array();
foreach ($cycle as $cycle_phid) {
$names[] = $handles[$cycle_phid]->getFullName();
}
$names = implode(" \xE2\x86\x92 ", $names);
$which = $handles[$phid]->getFullName();
throw new Exception(
"You can not create a dependency on '{$which}' because it ".
"would create a circular dependency: {$names}.");
}
}
}
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