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phab/src/applications/differential/controller/revisionlist/DifferentialRevisionListController.php
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DifferentialRevisionListController.php
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<?php
/*
* Copyright 2012 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.
*/
final class DifferentialRevisionListController extends DifferentialController {
private $filter;
private $username;
public function shouldRequireLogin() {
return !$this->allowsAnonymousAccess();
}
public function willProcessRequest(array $data) {
$this->filter = idx($data, 'filter');
$this->username = idx($data, 'username');
}
public function processRequest() {
$request = $this->getRequest();
$user = $request->getUser();
$viewer_is_anonymous = !$user->isLoggedIn();
$params = array_filter(
array(
'status' => $request->getStr('status'),
'order' => $request->getStr('order'),
));
$default_filter = ($viewer_is_anonymous ? 'all' : 'active');
$filters = $this->getFilters();
$this->filter = $this->selectFilter(
$filters,
$this->filter,
$default_filter);
// Redirect from search to canonical URL.
$phid_arr = $request->getArr('view_user');
if ($phid_arr) {
$view_user = id(new PhabricatorUser())
->loadOneWhere('phid = %s', head($phid_arr));
$base_uri = '/differential/filter/'.$this->filter.'/';
if ($view_user) {
// This is a user, so generate a pretty URI.
$uri = $base_uri.phutil_escape_uri($view_user->getUserName()).'/';
} else {
// We're assuming this is a mailing list, generate an ugly URI.
$uri = $base_uri;
$params['phid'] = head($phid_arr);
}
$uri = new PhutilURI($uri);
$uri->setQueryParams($params);
return id(new AphrontRedirectResponse())->setURI($uri);
}
$uri = new PhutilURI('/differential/filter/'.$this->filter.'/');
$uri->setQueryParams($params);
$username = '';
if ($this->username) {
$view_user = id(new PhabricatorUser())
->loadOneWhere('userName = %s', $this->username);
if (!$view_user) {
return new Aphront404Response();
}
$username = phutil_escape_uri($this->username).'/';
$uri->setPath('/differential/filter/'.$this->filter.'/'.$username);
$params['phid'] = $view_user->getPHID();
} else {
$phid = $request->getStr('phid');
if (strlen($phid)) {
$params['phid'] = $phid;
}
}
// Fill in the defaults we'll actually use for calculations if any
// parameters are missing.
$params += array(
'phid' => $user->getPHID(),
'status' => 'all',
'order' => 'modified',
);
$side_nav = new AphrontSideNavView();
foreach ($filters as $filter) {
list($filter_name, $display_name) = $filter;
if ($filter_name) {
$href = clone $uri;
$href->setPath('/differential/filter/'.$filter_name.'/'.$username);
if ($filter_name == $this->filter) {
$class = 'aphront-side-nav-selected';
} else {
$class = null;
}
$item = phutil_render_tag(
'a',
array(
'href' => (string)$href,
'class' => $class,
),
phutil_escape_html($display_name));
} else {
$item = phutil_render_tag(
'span',
array(),
phutil_escape_html($display_name));
}
$side_nav->addNavItem($item);
}
$panels = array();
$handles = array();
$controls = $this->getFilterControls($this->filter);
if ($this->getFilterRequiresUser($this->filter) && !$params['phid']) {
// In the anonymous case, we still want to let you see some user's
// list, but we don't have a default PHID to provide (normally, we use
// the viewing user's). Show a warning instead.
$warning = new AphrontErrorView();
$warning->setSeverity(AphrontErrorView::SEVERITY_WARNING);
$warning->setTitle('User Required');
$warning->appendChild(
'This filter requires that a user be specified above.');
$panels[] = $warning;
} else {
$query = $this->buildQuery($this->filter, $params['phid']);
$pager = null;
if ($this->getFilterAllowsPaging($this->filter)) {
$pager = new AphrontPagerView();
$pager->setOffset($request->getInt('page'));
$pager->setPageSize(1000);
$pager->setURI($uri, 'page');
$query->setOffset($pager->getOffset());
$query->setLimit($pager->getPageSize() + 1);
}
foreach ($controls as $control) {
$this->applyControlToQuery($control, $query, $params);
}
$revisions = $query->execute();
if ($pager) {
$revisions = $pager->sliceResults($revisions);
}
$views = $this->buildViews($this->filter, $params['phid'], $revisions);
$view_objects = array();
foreach ($views as $view) {
if (empty($view['special'])) {
$view_objects[] = $view['view'];
}
}
$phids = array_mergev(mpull($view_objects, 'getRequiredHandlePHIDs'));
$phids[] = $params['phid'];
$handles = id(new PhabricatorObjectHandleData($phids))->loadHandles();
foreach ($views as $view) {
if (empty($view['special'])) {
$view['view']->setHandles($handles);
}
$panel = new AphrontPanelView();
$panel->setHeader($view['title']);
$panel->appendChild($view['view']);
if ($pager) {
$panel->appendChild($pager);
}
$panels[] = $panel;
}
}
$filter_form = id(new AphrontFormView())
->setMethod('GET')
->setAction('/differential/filter/'.$this->filter.'/')
->setUser($user);
foreach ($controls as $control) {
$control_view = $this->renderControl($control, $handles, $uri, $params);
$filter_form->appendChild($control_view);
}
$filter_form
->addHiddenInput('status', $params['status'])
->addHiddenInput('order', $params['order'])
->appendChild(
id(new AphrontFormSubmitControl())
->setValue('Filter Revisions'));
$filter_view = new AphrontListFilterView();
$filter_view->appendChild($filter_form);
if (!$viewer_is_anonymous) {
$create_uri = new PhutilURI('/differential/diff/create/');
$filter_view->addButton(
phutil_render_tag(
'a',
array(
'href' => (string)$create_uri,
'class' => 'green button',
),
'Create Revision'));
}
$side_nav->appendChild($filter_view);
foreach ($panels as $panel) {
$side_nav->appendChild($panel);
}
return $this->buildStandardPageResponse(
$side_nav,
array(
'title' => 'Differential Home',
'tab' => 'revisions',
));
}
private function getFilters() {
return array(
array(null, 'User Revisions'),
array('active', 'Active'),
array('revisions', 'Revisions'),
array('reviews', 'Reviews'),
array('subscribed', 'Subscribed'),
array('drafts', 'Draft Reviews'),
array(null, 'All Revisions'),
array('all', 'All'),
);
}
private function selectFilter(
array $filters,
$requested_filter,
$default_filter) {
// If the user requested a filter, make sure it actually exists.
if ($requested_filter) {
foreach ($filters as $filter) {
if ($filter[0] === $requested_filter) {
return $requested_filter;
}
}
}
// If not, return the default filter.
return $default_filter;
}
private function getFilterRequiresUser($filter) {
static $requires = array(
'active' => true,
'revisions' => true,
'reviews' => true,
'subscribed' => true,
'drafts' => true,
'all' => false,
);
if (!isset($requires[$filter])) {
throw new Exception("Unknown filter '{$filter}'!");
}
return $requires[$filter];
}
private function getFilterAllowsPaging($filter) {
static $allows = array(
'active' => false,
'revisions' => true,
'reviews' => true,
'subscribed' => true,
'drafts' => true,
'all' => true,
);
if (!isset($allows[$filter])) {
throw new Exception("Unknown filter '{$filter}'!");
}
return $allows[$filter];
}
private function getFilterControls($filter) {
static $controls = array(
'active' => array('phid'),
'revisions' => array('phid', 'status', 'order'),
'reviews' => array('phid', 'status', 'order'),
'subscribed' => array('subscriber', 'status', 'order'),
'drafts' => array('phid', 'status', 'order'),
'all' => array('status', 'order'),
);
if (!isset($controls[$filter])) {
throw new Exception("Unknown filter '{$filter}'!");
}
return $controls[$filter];
}
private function buildQuery($filter, $user_phid) {
$query = new DifferentialRevisionQuery();
$query->needRelationships(true);
switch ($filter) {
case 'active':
$query->withResponsibleUsers(array($user_phid));
$query->withStatus(DifferentialRevisionQuery::STATUS_OPEN);
$query->setLimit(null);
break;
case 'revisions':
$query->withAuthors(array($user_phid));
break;
case 'reviews':
$query->withReviewers(array($user_phid));
break;
case 'subscribed':
$query->withSubscribers(array($user_phid));
break;
case 'drafts':
$query->withDraftRepliesByAuthors(array($user_phid));
break;
case 'all':
break;
default:
throw new Exception("Unknown filter '{$filter}'!");
}
return $query;
}
private function renderControl(
$control,
array $handles,
PhutilURI $uri,
array $params) {
assert_instances_of($handles, 'PhabricatorObjectHandle');
switch ($control) {
case 'subscriber':
case 'phid':
$view_phid = $params['phid'];
$value = array();
if ($view_phid) {
$value = array(
$view_phid => $handles[$view_phid]->getFullName(),
);
}
if ($control == 'subscriber') {
$source = '/typeahead/common/allmailable/';
$label = 'View Subscriber';
} else {
$source = '/typeahead/common/accounts/';
$label = 'View User';
}
return id(new AphrontFormTokenizerControl())
->setDatasource($source)
->setLabel($label)
->setName('view_user')
->setValue($value)
->setLimit(1);
case 'status':
return id(new AphrontFormToggleButtonsControl())
->setLabel('Status')
->setValue($params['status'])
->setBaseURI($uri, 'status')
->setButtons(
array(
'all' => 'All',
'open' => 'Open',
'committed' => 'Committed',
'abandoned' => 'Abandoned',
));
case 'order':
return id(new AphrontFormToggleButtonsControl())
->setLabel('Order')
->setValue($params['order'])
->setBaseURI($uri, 'order')
->setButtons(
array(
'modified' => 'Updated',
'created' => 'Created',
));
default:
throw new Exception("Unknown control '{$control}'!");
}
}
private function applyControlToQuery($control, $query, array $params) {
switch ($control) {
case 'phid':
case 'subscriber':
// Already applied by query construction.
break;
case 'status':
if ($params['status'] == 'open') {
$query->withStatus(DifferentialRevisionQuery::STATUS_OPEN);
} elseif ($params['status'] == 'committed') {
$query->withStatus(DifferentialRevisionQuery::STATUS_COMMITTED);
} elseif ($params['status'] == 'abandoned') {
$query->withStatus(DifferentialRevisionQuery::STATUS_ABANDONED);
}
break;
case 'order':
if ($params['order'] == 'created') {
$query->setOrder(DifferentialRevisionQuery::ORDER_CREATED);
}
break;
default:
throw new Exception("Unknown control '{$control}'!");
}
}
private function buildViews($filter, $user_phid, array $revisions) {
assert_instances_of($revisions, 'DifferentialRevision');
$user = $this->getRequest()->getUser();
$template = id(new DifferentialRevisionListView())
->setUser($user)
->setFields(DifferentialRevisionListView::getDefaultFields());
$views = array();
switch ($filter) {
case 'active':
list($active, $waiting) = DifferentialRevisionQuery::splitResponsible(
$revisions,
$user_phid);
$view = id(clone $template)
->setRevisions($active)
->setNoDataString("You have no active revisions requiring action.");
$views[] = array(
'title' => 'Action Required',
'view' => $view,
);
// Flags are sort of private, so only show the flag panel if you're
// looking at your own requests.
if ($user_phid == $user->getPHID()) {
$flags = id(new PhabricatorFlagQuery())
->withOwnerPHIDs(array($user_phid))
->withTypes(array(PhabricatorPHIDConstants::PHID_TYPE_DREV))
->needHandles(true)
->execute();
if ($flags) {
$view = id(new PhabricatorFlagListView())
->setFlags($flags)
->setUser($user);
$views[] = array(
'title' => 'Flagged Revisions',
'view' => $view,
'special' => true,
);
}
}
$view = id(clone $template)
->setRevisions($waiting)
->setNoDataString("You have no active revisions waiting on others.");
$views[] = array(
'title' => 'Waiting On Others',
'view' => $view,
);
break;
case 'revisions':
case 'reviews':
case 'subscribed':
case 'drafts':
case 'all':
$titles = array(
'revisions' => 'Revisions by Author',
'reviews' => 'Revisions by Reviewer',
'subscribed' => 'Revisions by Subscriber',
'all' => 'Revisions',
);
$view = id(clone $template)
->setRevisions($revisions);
$views[] = array(
'title' => idx($titles, $filter),
'view' => $view,
);
break;
default:
throw new Exception("Unknown filter '{$filter}'!");
}
return $views;
}
}
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