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phorge/src/applications/maniphest/controller/ManiphestTaskGraphController.php
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ManiphestTaskGraphController.php
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<?php
final class ManiphestTaskGraphController
extends ManiphestController {
public function shouldAllowPublic() {
return true;
}
public function handleRequest(AphrontRequest $request) {
$viewer = $this->getViewer();
$id = $request->getURIData('id');
$task = id(new ManiphestTaskQuery())
->setViewer($viewer)
->withIDs(array($id))
->executeOne();
if (!$task) {
return new Aphront404Response();
}
$crumbs = $this->buildApplicationCrumbs()
->addTextCrumb($task->getMonogram(), $task->getURI())
->addTextCrumb(pht('Graph'))
->setBorder(true);
$graph_limit = 2000;
$overflow_message = null;
$task_graph = id(new ManiphestTaskGraph())
->setViewer($viewer)
->setSeedPHID($task->getPHID())
->setLimit($graph_limit)
->loadGraph();
if (!$task_graph->isEmpty()) {
$parent_type = ManiphestTaskDependedOnByTaskEdgeType::EDGECONST;
$subtask_type = ManiphestTaskDependsOnTaskEdgeType::EDGECONST;
$parent_map = $task_graph->getEdges($parent_type);
$subtask_map = $task_graph->getEdges($subtask_type);
$parent_list = idx($parent_map, $task->getPHID(), array());
$subtask_list = idx($subtask_map, $task->getPHID(), array());
$has_parents = (bool)$parent_list;
$has_subtasks = (bool)$subtask_list;
// First, get a count of direct parent tasks and subtasks. If there
// are too many of these, we just don't draw anything. You can use
// the search button to browse tasks with the search UI instead.
$direct_count = count($parent_list) + count($subtask_list);
if ($direct_count > $graph_limit) {
$overflow_message = pht(
'This task is directly connected to more than %s other tasks, '.
'which is too many tasks to display. Use %s to browse parents '.
'or subtasks.',
new PhutilNumber($graph_limit),
phutil_tag('strong', array(), pht('Search...')));
$graph_table = null;
} else {
// If there aren't too many direct tasks, but there are too many total
// tasks, we'll only render directly connected tasks.
if ($task_graph->isOverLimit()) {
$task_graph->setRenderOnlyAdjacentNodes(true);
$overflow_message = pht(
'This task is connected to more than %s other tasks. '.
'Only direct parents and subtasks are shown here.',
new PhutilNumber($graph_limit));
}
$graph_table = $task_graph->newGraphTable();
}
$graph_menu = $this->newTaskGraphDropdownMenu(
$task,
$has_parents,
$has_subtasks,
false);
} else {
$graph_menu = null;
$graph_table = null;
$overflow_message = pht(
'This task has no parent tasks and no subtasks, so there is no '.
'graph to draw.');
}
if ($overflow_message) {
$overflow_view = $this->newTaskGraphOverflowView(
$task,
$overflow_message,
false);
$graph_table = array(
$overflow_view,
$graph_table,
);
}
$header = id(new PHUIHeaderView())
->setHeader(pht('Task Graph'));
if ($graph_menu) {
$header->addActionLink($graph_menu);
}
$tab_view = id(new PHUIObjectBoxView())
->setHeader($header)
->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
->appendChild($graph_table);
$view = id(new PHUITwoColumnView())
->setFooter($tab_view);
return $this->newPage()
->setTitle(
array(
$task->getMonogram(),
pht('Graph'),
))
->setCrumbs($crumbs)
->appendChild($view);
}
}

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