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Service "Group by: Project" in Maniphest out of a local index

Summary:
See discussion in D6955. Currently, the logic for "Group by: Project" is roughly:

  - Load every possible result.
  - Lots of in-process garbage.

Instead, use the new local project name index (from D6957) to service this query more reasonably. Basically:

  - Join a table which has keyed project names.
  - Order by that table.

Test Plan: {F58033}

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Differential Revision: https://secure.phabricator.com/D6958
This commit is contained in:
epriestley 2013-09-12 13:08:25 -07:00
parent e50eccf109
commit ddfc6bbc9e
3 changed files with 170 additions and 178 deletions

View file

@ -631,25 +631,20 @@ final class ManiphestTaskListController extends ManiphestController {
}
break;
case 'project':
$grouped = array();
foreach ($query->getGroupByProjectResults() as $project => $tasks) {
foreach ($tasks as $task) {
$group = 'No Project';
if ($project && isset($handles[$project])) {
$group = $handles[$project]->getName();
}
$grouped[$group][$task->getID()] = $task;
}
}
$data = $grouped;
ksort($data);
$data = mgroup($data, 'getGroupByProjectPHID');
// Move "No Project" to the end of the list.
if (isset($data['No Project'])) {
$noproject = $data['No Project'];
unset($data['No Project']);
$data += array('No Project' => $noproject);
$out = array();
foreach ($data as $phid => $tasks) {
$name = pht('No Project');
if ($phid) {
$handle = idx($handles, $phid);
if ($handle) {
$name = $handles[$phid]->getFullName();
}
}
$out[$name] = $tasks;
}
$data = $out;
break;
default:
$data = array(

View file

@ -64,8 +64,6 @@ final class ManiphestTaskQuery
private $rowCount = null;
private $groupByProjectResults = null; // See comment at bottom for details
public function withAuthors(array $authors) {
$this->authorPHIDs = $authors;
return $this;
@ -171,10 +169,6 @@ final class ManiphestTaskQuery
return $this->rowCount;
}
public function getGroupByProjectResults() {
return $this->groupByProjectResults;
}
public function withAnyProjects(array $projects) {
$this->anyProjectPHIDs = $projects;
return $this;
@ -248,30 +242,8 @@ final class ManiphestTaskQuery
$where = $this->formatWhereClause($where);
$join = array();
$join[] = $this->buildProjectJoinClause($conn);
$join[] = $this->buildAnyProjectJoinClause($conn);
$join[] = $this->buildXProjectJoinClause($conn);
$join[] = $this->buildSubscriberJoinClause($conn);
$join = array_filter($join);
if ($join) {
$join = implode(' ', $join);
} else {
$join = '';
}
$having = '';
$count = '';
$group = '';
if (count($this->projectPHIDs) > 1 || count($this->anyProjectPHIDs) > 1) {
// If we're joining multiple rows, we need to group the results by the
// task IDs.
$group = 'GROUP BY task.id';
} else {
$group = '';
}
if (count($this->projectPHIDs) > 1) {
// We want to treat the query as an intersection query, not a union
@ -292,20 +264,25 @@ final class ManiphestTaskQuery
$this->setLimit(self::DEFAULT_PAGE_SIZE);
}
if ($this->groupBy == self::GROUP_PROJECT) {
$this->setLimit(PHP_INT_MAX);
$this->setOffset(0);
$group_column = '';
switch ($this->groupBy) {
case self::GROUP_PROJECT:
$group_column = qsprintf(
$conn,
', projectGroupName.indexedObjectPHID projectGroupPHID');
break;
}
$data = queryfx_all(
$rows = queryfx_all(
$conn,
'SELECT %Q * %Q FROM %T task %Q %Q %Q %Q %Q %Q',
'SELECT %Q task.* %Q %Q FROM %T task %Q %Q %Q %Q %Q %Q',
$calc,
$count,
$group_column,
$task_dao->getTableName(),
$join,
$this->buildJoinsClause($conn),
$where,
$group,
$this->buildGroupClause($conn),
$having,
$order,
$this->buildLimitClause($conn));
@ -319,10 +296,27 @@ final class ManiphestTaskQuery
$this->rowCount = null;
}
switch ($this->groupBy) {
case self::GROUP_PROJECT:
$data = ipull($rows, null, 'id');
break;
default:
$data = $rows;
break;
}
$tasks = $task_dao->loadAllFromArray($data);
if ($this->groupBy == self::GROUP_PROJECT) {
$tasks = $this->applyGroupByProject($tasks);
switch ($this->groupBy) {
case self::GROUP_PROJECT:
$results = array();
foreach ($rows as $row) {
$task = clone $tasks[$row['id']];
$task->attachGroupByProjectPHID($row['projectGroupPHID']);
$results[] = $task;
}
$tasks = $results;
break;
}
return $tasks;
@ -514,19 +508,6 @@ final class ManiphestTaskQuery
return '('.implode(') OR (', $parts).')';
}
private function buildProjectJoinClause(AphrontDatabaseConnection $conn) {
if (!$this->projectPHIDs && !$this->includeNoProject) {
return null;
}
$project_dao = new ManiphestTaskProject();
return qsprintf(
$conn,
'%Q JOIN %T project ON project.taskPHID = task.phid',
($this->includeNoProject ? 'LEFT' : ''),
$project_dao->getTableName());
}
private function buildAnyProjectWhereClause(AphrontDatabaseConnection $conn) {
if (!$this->anyProjectPHIDs) {
return null;
@ -559,18 +540,6 @@ final class ManiphestTaskQuery
$any_user_project_phids);
}
private function buildAnyProjectJoinClause(AphrontDatabaseConnection $conn) {
if (!$this->anyProjectPHIDs && !$this->anyUserProjectPHIDs) {
return null;
}
$project_dao = new ManiphestTaskProject();
return qsprintf(
$conn,
'JOIN %T anyproject ON anyproject.taskPHID = task.phid',
$project_dao->getTableName());
}
private function buildXProjectWhereClause(AphrontDatabaseConnection $conn) {
if (!$this->xprojectPHIDs) {
return null;
@ -581,32 +550,6 @@ final class ManiphestTaskQuery
'xproject.projectPHID IS NULL');
}
private function buildXProjectJoinClause(AphrontDatabaseConnection $conn) {
if (!$this->xprojectPHIDs) {
return null;
}
$project_dao = new ManiphestTaskProject();
return qsprintf(
$conn,
'LEFT JOIN %T xproject ON xproject.taskPHID = task.phid
AND xproject.projectPHID IN (%Ls)',
$project_dao->getTableName(),
$this->xprojectPHIDs);
}
private function buildSubscriberJoinClause(AphrontDatabaseConnection $conn) {
if (!$this->subscriberPHIDs) {
return null;
}
$subscriber_dao = new ManiphestTaskSubscriber();
return qsprintf(
$conn,
'JOIN %T subscriber ON subscriber.taskPHID = task.phid',
$subscriber_dao->getTableName());
}
private function buildCustomOrderClause(AphrontDatabaseConnection $conn) {
$order = array();
@ -623,8 +566,7 @@ final class ManiphestTaskQuery
$order[] = 'status';
break;
case self::GROUP_PROJECT:
// NOTE: We have to load the entire result set and apply this grouping
// in the PHP process for now.
$order[] = '<group.project>';
break;
default:
throw new Exception("Unknown group query '{$this->groupBy}'!");
@ -662,6 +604,12 @@ final class ManiphestTaskQuery
case 'title':
$order[$k] = "task.{$column} ASC";
break;
case '<group.project>':
// Put "No Project" at the end of the list.
$order[$k] =
'projectGroupName.indexedObjectName IS NULL ASC, '.
'projectGroupName.indexedObjectName ASC';
break;
default:
$order[$k] = "task.{$column} DESC";
break;
@ -671,86 +619,125 @@ final class ManiphestTaskQuery
return 'ORDER BY '.implode(', ', $order);
}
private function buildJoinsClause(AphrontDatabaseConnection $conn_r) {
$project_dao = new ManiphestTaskProject();
/**
* To get paging to work for "group by project", we need to do a bunch of
* server-side magic since there's currently no way to sort by project name on
* the database.
*
* As a consequence of this, moreover, because the list we return from here
* may include a single task multiple times (once for each project it's in),
* sorting gets screwed up in the controller unless we tell it which project
* to put the task in each time it appears. Hence the magic field
* groupByProjectResults.
*
* TODO: Move this all to the database.
*/
private function applyGroupByProject(array $tasks) {
assert_instances_of($tasks, 'ManiphestTask');
$joins = array();
$project_phids = array();
foreach ($tasks as $task) {
foreach ($task->getProjectPHIDs() as $phid) {
$project_phids[$phid] = true;
}
if ($this->projectPHIDs || $this->includeNoProject) {
$joins[] = qsprintf(
$conn_r,
'%Q JOIN %T project ON project.taskPHID = task.phid',
($this->includeNoProject ? 'LEFT' : ''),
$project_dao->getTableName());
}
$handles = id(new PhabricatorHandleQuery())
->setViewer($this->getViewer())
->withPHIDs(array_keys($project_phids))
->execute();
$max = 1;
foreach ($handles as $handle) {
$max = max($max, strlen($handle->getName()));
if ($this->anyProjectPHIDs || $this->anyUserProjectPHIDs) {
$joins[] = qsprintf(
$conn_r,
'JOIN %T anyproject ON anyproject.taskPHID = task.phid',
$project_dao->getTableName());
}
$items = array();
$ii = 0;
foreach ($tasks as $key => $task) {
$phids = $task->getProjectPHIDs();
if ($this->projectPHIDs) {
$phids = array_diff($phids, $this->projectPHIDs);
}
if ($phids) {
foreach ($phids as $phid) {
$items[] = array(
'key' => $key,
'proj' => $phid,
'seq' => sprintf(
'%'.$max.'s%09d',
$handles[$phid]->getName(),
$ii),
);
if ($this->xprojectPHIDs) {
$joins[] = qsprintf(
$conn_r,
'LEFT JOIN %T xproject ON xproject.taskPHID = task.phid
AND xproject.projectPHID IN (%Ls)',
$project_dao->getTableName(),
$this->xprojectPHIDs);
}
if ($this->subscriberPHIDs) {
$subscriber_dao = new ManiphestTaskSubscriber();
$joins[] = qsprintf(
$conn_r,
'JOIN %T subscriber ON subscriber.taskPHID = task.phid',
$subscriber_dao->getTableName());
}
switch ($this->groupBy) {
case self::GROUP_PROJECT:
$ignore_group_phids = $this->getIgnoreGroupedProjectPHIDs();
if ($ignore_group_phids) {
$joins[] = qsprintf(
$conn_r,
'LEFT JOIN %T projectGroup ON task.phid = projectGroup.taskPHID
AND projectGroup.projectPHID NOT IN (%Ls)',
$project_dao->getTableName(),
$ignore_group_phids);
} else {
$joins[] = qsprintf(
$conn_r,
'LEFT JOIN %T projectGroup ON task.phid = projectGroup.taskPHID',
$project_dao->getTableName());
}
} else {
// Sort "no project" tasks first.
$items[] = array(
'key' => $key,
'proj' => null,
'seq' => sprintf(
'%'.$max.'s%09d',
'',
$ii),
);
}
++$ii;
$joins[] = qsprintf(
$conn_r,
'LEFT JOIN %T projectGroupName
ON projectGroup.projectPHID = projectGroupName.indexedObjectPHID',
id(new ManiphestNameIndex())->getTableName());
break;
}
$items = isort($items, 'seq');
$items = array_slice(
$items,
nonempty($this->getOffset()),
nonempty($this->getLimit(), self::DEFAULT_PAGE_SIZE));
$result = array();
$projects = array();
foreach ($items as $item) {
$result[] = $projects[$item['proj']][] = $tasks[$item['key']];
}
$this->groupByProjectResults = $projects;
return $result;
return implode(' ', $joins);
}
private function buildGroupClause(AphrontDatabaseConnection $conn_r) {
$joined_multiple_project_rows = (count($this->projectPHIDs) > 1) ||
(count($this->anyProjectPHIDs) > 1);
$joined_project_name = ($this->groupBy == self::GROUP_PROJECT);
// If we're joining multiple rows, we need to group the results by the
// task IDs.
if ($joined_multiple_project_rows) {
if ($joined_project_name) {
return 'GROUP BY task.id, projectGroup.projectPHID';
} else {
return 'GROUP BY task.id';
}
} else {
return '';
}
}
/**
* Return project PHIDs which we should ignore when grouping tasks by
* project. For example, if a user issues a query like:
*
* Tasks in all projects: Frontend, Bugs
*
* ...then we don't show "Frontend" or "Bugs" groups in the result set, since
* they're meaningless as all results are in both groups.
*
* Similarly, for queries like:
*
* Tasks in any projects: Public Relations
*
* ...we ignore the single project, as every result is in that project. (In
* the case that there are several "any" projects, we do not ignore them.)
*
* @return list<phid> Project PHIDs which should be ignored in query
* construction.
*/
private function getIgnoreGroupedProjectPHIDs() {
$phids = array();
if ($this->projectPHIDs) {
$phids[] = $this->projectPHIDs;
}
if (count($this->anyProjectPHIDs) == 1) {
$phids[] = $this->anyProjectPHIDs;
}
// Maybe we should also exclude the "excludeProjectPHIDs"? It won't
// impact the results, but we might end up with a better query plan.
// Investigate this on real data? This is likely very rare.
return array_mergev($phids);
}
}

View file

@ -36,6 +36,7 @@ final class ManiphestTask extends ManiphestDAO
private $auxiliaryAttributes = self::ATTACHABLE;
private $auxiliaryDirty = array();
private $groupByProjectPHID = self::ATTACHABLE;
public function getConfiguration() {
return array(
@ -115,6 +116,15 @@ final class ManiphestTask extends ManiphestDAO
return $this;
}
public function attachGroupByProjectPHID($phid) {
$this->groupByProjectPHID = $phid;
return $this;
}
public function getGroupByProjectPHID() {
return $this->assertAttached($this->groupByProjectPHID);
}
public function attachAuxiliaryAttributes(array $attrs) {
if ($this->auxiliaryDirty) {
throw new Exception(