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PhragmentSnapshotPromoteController.php
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Sun, Aug 4, 13:03

PhragmentSnapshotPromoteController.php
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<?php
final class PhragmentSnapshotPromoteController extends PhragmentController {
private $dblob;
private $id;
private $targetSnapshot;
private $targetFragment;
private $snapshots;
private $options;
public function willProcessRequest(array $data) {
$this->dblob = idx($data, 'dblob', null);
$this->id = idx($data, 'id', null);
}
public function processRequest() {
$request = $this->getRequest();
$viewer = $request->getUser();
// When the user is promoting a snapshot to the latest version, the
// identifier is a fragment path.
if ($this->dblob !== null) {
$this->targetFragment = id(new PhragmentFragmentQuery())
->setViewer($viewer)
->requireCapabilities(array(
PhabricatorPolicyCapability::CAN_VIEW,
PhabricatorPolicyCapability::CAN_EDIT,
))
->withPaths(array($this->dblob))
->executeOne();
if ($this->targetFragment === null) {
return new Aphront404Response();
}
$this->snapshots = id(new PhragmentSnapshotQuery())
->setViewer($viewer)
->withPrimaryFragmentPHIDs(array($this->targetFragment->getPHID()))
->execute();
}
// When the user is promoting a snapshot to another snapshot, the
// identifier is another snapshot ID.
if ($this->id !== null) {
$this->targetSnapshot = id(new PhragmentSnapshotQuery())
->setViewer($viewer)
->requireCapabilities(array(
PhabricatorPolicyCapability::CAN_VIEW,
PhabricatorPolicyCapability::CAN_EDIT,
))
->withIDs(array($this->id))
->executeOne();
if ($this->targetSnapshot === null) {
return new Aphront404Response();
}
$this->snapshots = id(new PhragmentSnapshotQuery())
->setViewer($viewer)
->withPrimaryFragmentPHIDs(array(
$this->targetSnapshot->getPrimaryFragmentPHID(),
))
->execute();
}
// If there's no identifier, just 404.
if ($this->snapshots === null) {
return new Aphront404Response();
}
// Work out what options the user has.
$this->options = mpull(
$this->snapshots,
'getName',
'getID');
if ($this->id !== null) {
unset($this->options[$this->id]);
}
// If there's no options, show a dialog telling the
// user there are no snapshots to promote.
if (count($this->options) === 0) {
return id(new AphrontDialogResponse())->setDialog(
id(new AphrontDialogView())
->setTitle(pht('No snapshots to promote'))
->appendParagraph(pht(
'There are no snapshots available to promote.'))
->setUser($request->getUser())
->addCancelButton(pht('Cancel')));
}
// Handle snapshot promotion.
if ($request->isDialogFormPost()) {
$snapshot = id(new PhragmentSnapshotQuery())
->setViewer($viewer)
->withIDs(array($request->getStr('snapshot')))
->executeOne();
if ($snapshot === null) {
return new Aphront404Response();
}
$snapshot->openTransaction();
// Delete all existing child entries.
$children = id(new PhragmentSnapshotChildQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withSnapshotPHIDs(array($snapshot->getPHID()))
->execute();
foreach ($children as $child) {
$child->delete();
}
if ($this->id === null) {
// The user is promoting the snapshot to the latest version.
$children = id(new PhragmentFragmentQuery())
->setViewer($viewer)
->needLatestVersion(true)
->withLeadingPath($this->targetFragment->getPath().'/')
->execute();
// Add the primary fragment.
id(new PhragmentSnapshotChild())
->setSnapshotPHID($snapshot->getPHID())
->setFragmentPHID($this->targetFragment->getPHID())
->setFragmentVersionPHID(
$this->targetFragment->getLatestVersionPHID())
->save();
// Add all of the child fragments.
foreach ($children as $child) {
id(new PhragmentSnapshotChild())
->setSnapshotPHID($snapshot->getPHID())
->setFragmentPHID($child->getPHID())
->setFragmentVersionPHID($child->getLatestVersionPHID())
->save();
}
} else {
// The user is promoting the snapshot to another snapshot. We just
// copy the other snapshot's child entries and change the snapshot
// PHID to make it identical.
$children = id(new PhragmentSnapshotChildQuery())
->setViewer($viewer)
->withSnapshotPHIDs(array($this->targetSnapshot->getPHID()))
->execute();
foreach ($children as $child) {
id(new PhragmentSnapshotChild())
->setSnapshotPHID($snapshot->getPHID())
->setFragmentPHID($child->getFragmentPHID())
->setFragmentVersionPHID($child->getFragmentVersionPHID())
->save();
}
}
$snapshot->saveTransaction();
if ($this->id === null) {
return id(new AphrontRedirectResponse())
->setURI($this->targetFragment->getURI());
} else {
return id(new AphrontRedirectResponse())
->setURI($this->targetSnapshot->getURI());
}
}
return $this->createDialog();
}
public function createDialog() {
$request = $this->getRequest();
$viewer = $request->getUser();
$dialog = id(new AphrontDialogView())
->setTitle(pht('Promote which snapshot?'))
->setUser($request->getUser())
->addSubmitButton(pht('Promote'))
->addCancelButton(pht('Cancel'));
if ($this->id === null) {
// The user is promoting a snapshot to the latest version.
$dialog->appendParagraph(pht(
'Select the snapshot you want to promote to the latest version:'));
} else {
// The user is promoting a snapshot to another snapshot.
$dialog->appendParagraph(pht(
"Select the snapshot you want to promote to '%s':",
$this->targetSnapshot->getName()));
}
$dialog->appendChild(
id(new AphrontFormSelectControl())
->setUser($viewer)
->setName('snapshot')
->setOptions($this->options));
return id(new AphrontDialogResponse())->setDialog($dialog);
}
}

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