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PhabricatorApplicationTransactionQuery.php
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Wed, Mar 12, 13:49

PhabricatorApplicationTransactionQuery.php
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<?php
abstract class PhabricatorApplicationTransactionQuery
extends PhabricatorCursorPagedPolicyAwareQuery {
private $phids;
private $objectPHIDs;
private $authorPHIDs;
private $transactionTypes;
private $withComments;
private $needComments = true;
private $needHandles = true;
final public static function newQueryForObject(
PhabricatorApplicationTransactionInterface $object) {
$xaction = $object->getApplicationTransactionTemplate();
$target_class = get_class($xaction);
$queries = id(new PhutilClassMapQuery())
->setAncestorClass(__CLASS__)
->execute();
foreach ($queries as $query) {
$query_xaction = $query->getTemplateApplicationTransaction();
$query_class = get_class($query_xaction);
if ($query_class === $target_class) {
return id(clone $query);
}
}
return null;
}
abstract public function getTemplateApplicationTransaction();
public function withPHIDs(array $phids) {
$this->phids = $phids;
return $this;
}
public function withObjectPHIDs(array $object_phids) {
$this->objectPHIDs = $object_phids;
return $this;
}
public function withAuthorPHIDs(array $author_phids) {
$this->authorPHIDs = $author_phids;
return $this;
}
public function withTransactionTypes(array $transaction_types) {
$this->transactionTypes = $transaction_types;
return $this;
}
public function withComments($with_comments) {
$this->withComments = $with_comments;
return $this;
}
public function needComments($need) {
$this->needComments = $need;
return $this;
}
public function needHandles($need) {
$this->needHandles = $need;
return $this;
}
protected function loadPage() {
$table = $this->getTemplateApplicationTransaction();
$xactions = $this->loadStandardPage($table);
foreach ($xactions as $xaction) {
$xaction->attachViewer($this->getViewer());
}
if ($this->needComments) {
$comment_phids = array_filter(mpull($xactions, 'getCommentPHID'));
$comments = array();
if ($comment_phids) {
$comments =
id(new PhabricatorApplicationTransactionTemplatedCommentQuery())
->setTemplate($table->getApplicationTransactionCommentObject())
->setViewer($this->getViewer())
->withPHIDs($comment_phids)
->execute();
$comments = mpull($comments, null, 'getPHID');
}
foreach ($xactions as $xaction) {
if ($xaction->getCommentPHID()) {
$comment = idx($comments, $xaction->getCommentPHID());
if ($comment) {
$xaction->attachComment($comment);
}
}
}
} else {
foreach ($xactions as $xaction) {
$xaction->setCommentNotLoaded(true);
}
}
return $xactions;
}
protected function willFilterPage(array $xactions) {
$object_phids = array_keys(mpull($xactions, null, 'getObjectPHID'));
$objects = id(new PhabricatorObjectQuery())
->setViewer($this->getViewer())
->setParentQuery($this)
->withPHIDs($object_phids)
->execute();
foreach ($xactions as $key => $xaction) {
$object_phid = $xaction->getObjectPHID();
if (empty($objects[$object_phid])) {
unset($xactions[$key]);
continue;
}
$xaction->attachObject($objects[$object_phid]);
}
// NOTE: We have to do this after loading objects, because the objects
// may help determine which handles are required (for example, in the case
// of custom fields).
if ($this->needHandles) {
$phids = array();
foreach ($xactions as $xaction) {
$phids[$xaction->getPHID()] = $xaction->getRequiredHandlePHIDs();
}
$handles = array();
$merged = array_mergev($phids);
if ($merged) {
$handles = $this->getViewer()->loadHandles($merged);
$handles = iterator_to_array($handles);
}
foreach ($xactions as $xaction) {
$xaction->setHandles(
array_select_keys(
$handles,
$phids[$xaction->getPHID()]));
}
}
return $xactions;
}
protected function buildWhereClauseParts(AphrontDatabaseConnection $conn) {
$where = parent::buildWhereClauseParts($conn);
if ($this->phids !== null) {
$where[] = qsprintf(
$conn,
'x.phid IN (%Ls)',
$this->phids);
}
if ($this->objectPHIDs !== null) {
$where[] = qsprintf(
$conn,
'x.objectPHID IN (%Ls)',
$this->objectPHIDs);
}
if ($this->authorPHIDs !== null) {
$where[] = qsprintf(
$conn,
'x.authorPHID IN (%Ls)',
$this->authorPHIDs);
}
if ($this->transactionTypes !== null) {
$where[] = qsprintf(
$conn,
'x.transactionType IN (%Ls)',
$this->transactionTypes);
}
if ($this->withComments !== null) {
if (!$this->withComments) {
$where[] = qsprintf(
$conn,
'c.id IS NULL');
}
}
return $where;
}
protected function buildJoinClauseParts(AphrontDatabaseConnection $conn) {
$joins = parent::buildJoinClauseParts($conn);
if ($this->withComments !== null) {
$xaction = $this->getTemplateApplicationTransaction();
$comment = $xaction->getApplicationTransactionCommentObject();
// Not every transaction type has comments, so we may be able to
// implement this constraint trivially.
if (!$comment) {
if ($this->withComments) {
throw new PhabricatorEmptyQueryException();
} else {
// If we're querying for transactions with no comments and the
// transaction type does not support comments, we don't need to
// do anything.
}
} else {
if ($this->withComments) {
$joins[] = qsprintf(
$conn,
'JOIN %T c ON x.phid = c.transactionPHID',
$comment->getTableName());
} else {
$joins[] = qsprintf(
$conn,
'LEFT JOIN %T c ON x.phid = c.transactionPHID',
$comment->getTableName());
}
}
}
return $joins;
}
protected function shouldGroupQueryResultRows() {
if ($this->withComments !== null) {
return true;
}
return parent::shouldGroupQueryResultRows();
}
public function getQueryApplicationClass() {
// TODO: Sort this out?
return null;
}
protected function getPrimaryTableAlias() {
return 'x';
}
}

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