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phorge/src/applications/search/controller/PhabricatorSearchRelationshipController.php
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PhabricatorSearchRelationshipController.php
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<?php
final class PhabricatorSearchRelationshipController
extends PhabricatorSearchBaseController {
public function handleRequest(AphrontRequest $request) {
$viewer = $this->getViewer();
$object = $this->loadRelationshipObject();
if (!$object) {
return new Aphront404Response();
}
$relationship = $this->loadRelationship($object);
if (!$relationship) {
return new Aphront404Response();
}
$src_phid = $object->getPHID();
$edge_type = $relationship->getEdgeConstant();
// If this is a normal relationship, users can remove related objects. If
// it's a special relationship like a merge, we can't undo it, so we won't
// prefill the current related objects.
if ($relationship->canUndoRelationship()) {
$dst_phids = PhabricatorEdgeQuery::loadDestinationPHIDs(
$src_phid,
$edge_type);
} else {
$dst_phids = array();
}
$all_phids = $dst_phids;
$all_phids[] = $src_phid;
$handles = $viewer->loadHandles($all_phids);
$src_handle = $handles[$src_phid];
$done_uri = $src_handle->getURI();
$initial_phids = $dst_phids;
$maximum = $relationship->getMaximumSelectionSize();
if ($request->isFormPost()) {
$phids = explode(';', $request->getStr('phids'));
$phids = array_filter($phids);
$phids = array_values($phids);
// The UI normally enforces this with Javascript, so this is just a
// sanity check and does not need to be particularly user-friendly.
if ($maximum && (count($phids) > $maximum)) {
throw new Exception(
pht(
'Too many relationships (%s, of type "%s").',
phutil_count($phids),
$relationship->getRelationshipConstant()));
}
$initial_phids = $request->getStrList('initialPHIDs');
// Apply the changes as adds and removes relative to the original state
// of the object when the dialog was rendered so that two users adding
// relationships at the same time don't race and overwrite one another.
$add_phids = array_diff($phids, $initial_phids);
$rem_phids = array_diff($initial_phids, $phids);
$all_phids = array_merge($add_phids, $rem_phids);
$capabilities = $relationship->getRequiredRelationshipCapabilities();
if ($all_phids) {
$dst_objects = id(new PhabricatorObjectQuery())
->setViewer($viewer)
->withPHIDs($all_phids)
->setRaisePolicyExceptions(true)
->requireCapabilities($capabilities)
->execute();
$dst_objects = mpull($dst_objects, null, 'getPHID');
} else {
$dst_objects = array();
}
try {
foreach ($add_phids as $add_phid) {
$dst_object = idx($dst_objects, $add_phid);
if (!$dst_object) {
throw new Exception(
pht(
'You can not create a relationship to object "%s" because '.
'the object does not exist or could not be loaded.',
$add_phid));
}
if ($add_phid == $src_phid) {
throw new Exception(
pht(
'You can not create a relationship to object "%s" because '.
'objects can not be related to themselves.',
$add_phid));
}
if (!$relationship->canRelateObjects($object, $dst_object)) {
throw new Exception(
pht(
'You can not create a relationship (of type "%s") to object '.
'"%s" because it is not the right type of object for this '.
'relationship.',
$relationship->getRelationshipConstant(),
$add_phid));
}
}
} catch (Exception $ex) {
return $this->newUnrelatableObjectResponse($ex, $done_uri);
}
$content_source = PhabricatorContentSource::newFromRequest($request);
$relationship->setContentSource($content_source);
$editor = $object->getApplicationTransactionEditor()
->setActor($viewer)
->setContentSource($content_source)
->setContinueOnMissingFields(true)
->setContinueOnNoEffect(true);
$xactions = array();
$xactions[] = $object->getApplicationTransactionTemplate()
->setTransactionType(PhabricatorTransactions::TYPE_EDGE)
->setMetadataValue('edge:type', $edge_type)
->setNewValue(array(
'+' => array_fuse($add_phids),
'-' => array_fuse($rem_phids),
));
$add_objects = array_select_keys($dst_objects, $add_phids);
$rem_objects = array_select_keys($dst_objects, $rem_phids);
if ($add_objects || $rem_objects) {
$more_xactions = $relationship->willUpdateRelationships(
$object,
$add_objects,
$rem_objects);
foreach ($more_xactions as $xaction) {
$xactions[] = $xaction;
}
}
try {
$editor->applyTransactions($object, $xactions);
if ($add_objects || $rem_objects) {
$relationship->didUpdateRelationships(
$object,
$add_objects,
$rem_objects);
}
return id(new AphrontRedirectResponse())->setURI($done_uri);
} catch (PhabricatorEdgeCycleException $ex) {
return $this->newGraphCycleResponse($ex, $done_uri);
}
}
$handles = iterator_to_array($handles);
$handles = array_select_keys($handles, $dst_phids);
$dialog_title = $relationship->getDialogTitleText();
$dialog_header = $relationship->getDialogHeaderText();
$dialog_button = $relationship->getDialogButtonText();
$dialog_instructions = $relationship->getDialogInstructionsText();
$source_uri = $relationship->getSourceURI($object);
$source = $relationship->newSource();
$filters = $source->getFilters();
$selected_filter = $source->getSelectedFilter();
return id(new PhabricatorObjectSelectorDialog())
->setUser($viewer)
->setInitialPHIDs($initial_phids)
->setHandles($handles)
->setFilters($filters)
->setSelectedFilter($selected_filter)
->setExcluded($src_phid)
->setCancelURI($done_uri)
->setSearchURI($source_uri)
->setTitle($dialog_title)
->setHeader($dialog_header)
->setButtonText($dialog_button)
->setInstructions($dialog_instructions)
->setMaximumSelectionSize($maximum)
->buildDialog();
}
private function newGraphCycleResponse(
PhabricatorEdgeCycleException $ex,
$done_uri) {
$viewer = $this->getViewer();
$cycle = $ex->getCycle();
$handles = $this->loadViewerHandles($cycle);
$names = array();
foreach ($cycle as $cycle_phid) {
$names[] = $handles[$cycle_phid]->getFullName();
}
$message = pht(
'You can not create that relationship because it would create a '.
'circular dependency:');
$list = implode(" \xE2\x86\x92 ", $names);
return $this->newDialog()
->setTitle(pht('Circular Dependency'))
->appendParagraph($message)
->appendParagraph($list)
->addCancelButton($done_uri);
}
private function newUnrelatableObjectResponse(Exception $ex, $done_uri) {
$message = $ex->getMessage();
return $this->newDialog()
->setTitle(pht('Invalid Relationship'))
->appendParagraph($message)
->addCancelButton($done_uri);
}
}

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