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   1  <?php
   2  
   3  final class PhragmentSnapshotDeleteController extends PhragmentController {
   4  
   5    private $id;
   6  
   7    public function willProcessRequest(array $data) {
   8      $this->id = $data['id'];
   9    }
  10  
  11    public function processRequest() {
  12      $request = $this->getRequest();
  13      $viewer = $request->getUser();
  14  
  15      $snapshot = id(new PhragmentSnapshotQuery())
  16        ->setViewer($viewer)
  17        ->requireCapabilities(array(
  18          PhabricatorPolicyCapability::CAN_VIEW,
  19          PhabricatorPolicyCapability::CAN_EDIT,
  20        ))
  21        ->withIDs(array($this->id))
  22        ->executeOne();
  23      if ($snapshot === null) {
  24        return new Aphront404Response();
  25      }
  26  
  27      if ($request->isDialogFormPost()) {
  28        $fragment_uri = $snapshot->getPrimaryFragment()->getURI();
  29  
  30        $snapshot->delete();
  31  
  32        return id(new AphrontRedirectResponse())
  33          ->setURI($fragment_uri);
  34      }
  35  
  36      return $this->createDialog();
  37    }
  38  
  39    function createDialog() {
  40      $request = $this->getRequest();
  41      $viewer = $request->getUser();
  42  
  43      $dialog = id(new AphrontDialogView())
  44        ->setTitle(pht('Really delete this snapshot?'))
  45        ->setUser($request->getUser())
  46        ->addSubmitButton(pht('Delete'))
  47        ->addCancelButton(pht('Cancel'))
  48        ->appendParagraph(pht(
  49          'Deleting this snapshot is a permanent operation. You can not '.
  50          'recover the state of the snapshot.'));
  51      return id(new AphrontDialogResponse())->setDialog($dialog);
  52    }
  53  
  54  }