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phab/src/applications/flag/query/PhabricatorFlagQuery.php
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PhabricatorFlagQuery.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 PhabricatorFlagQuery {
private $ownerPHIDs;
private $types;
private $objectPHIDs;
private $limit;
private $offset;
private $needHandles;
private $needObjects;
private $viewer;
public function setViewer($viewer) {
$this->viewer = $viewer;
return $this;
}
public function withOwnerPHIDs(array $owner_phids) {
$this->ownerPHIDs = $owner_phids;
return $this;
}
public function withTypes(array $types) {
$this->types = $types;
return $this;
}
public function withObjectPHIDs(array $object_phids) {
$this->objectPHIDs = $object_phids;
return $this;
}
public function needHandles($need) {
$this->needHandles = $need;
return $this;
}
public function needObjects($need) {
$this->needObjects = $need;
return $this;
}
public function setLimit($limit) {
$this->limit = $limit;
return $this;
}
public function setOffset($offset) {
$this->offset = $offset;
return $this;
}
public static function loadUserFlag(PhabricatorUser $user, $object_phid) {
// Specifying the type in the query allows us to use a key.
return id(new PhabricatorFlag())->loadOneWhere(
'ownerPHID = %s AND type = %s AND objectPHID = %s',
$user->getPHID(),
phid_get_type($object_phid),
$object_phid);
}
public function execute() {
$table = new PhabricatorFlag();
$conn_r = $table->establishConnection('r');
$where = $this->buildWhereClause($conn_r);
$limit = $this->buildLimitClause($conn_r);
$order = $this->buildOrderClause($conn_r);
$data = queryfx_all(
$conn_r,
'SELECT * FROM %T flag %Q %Q %Q',
$table->getTableName(),
$where,
$order,
$limit);
$flags = $table->loadAllFromArray($data);
if ($this->needHandles || $this->needObjects) {
$phids = ipull($data, 'objectPHID');
$query = new PhabricatorObjectHandleData($phids);
if ($this->viewer) {
$query->setViewer($this->viewer);
}
if ($this->needHandles) {
$handles = $query->loadHandles();
foreach ($flags as $flag) {
$handle = idx($handles, $flag->getObjectPHID());
if ($handle) {
$flag->attachHandle($handle);
}
}
}
if ($this->needObjects) {
$objects = $query->loadObjects();
foreach ($flags as $flag) {
$object = idx($objects, $flag->getObjectPHID());
if ($object) {
$flag->attachObject($object);
}
}
}
}
return $flags;
}
private function buildWhereClause($conn_r) {
$where = array();
if ($this->ownerPHIDs) {
$where[] = qsprintf(
$conn_r,
'flag.ownerPHID IN (%Ls)',
$this->ownerPHIDs);
}
if ($this->types) {
$where[] = qsprintf(
$conn_r,
'flag.type IN (%Ls)',
$this->types);
}
if ($this->objectPHIDs) {
$where[] = qsprintf(
$conn_r,
'flag.objectPHID IN (%Ls)',
$this->objectPHIDs);
}
if ($where) {
return 'WHERE ('.implode(') AND (', $where).')';
} else {
return '';
}
}
private function buildOrderClause($conn_r) {
return 'ORDER BY id DESC';
}
private function buildLimitClause($conn_r) {
if ($this->limit && $this->offset) {
return qsprintf($conn_r, 'LIMIT %d, %d', $this->offset, $this->limit);
} else if ($this->limit) {
return qsprintf($conn_r, 'LIMIT %d', $this->limit);
} else if ($this->offset) {
return qsprintf($conn_r, 'LIMIT %d, %d', $this->offset, PHP_INT_MAX);
} else {
return '';
}
}
}
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