src/applications/files/controller/PhabricatorFileDetachController.php

   1 <?php
   2
   3 final class PhabricatorFileDetachController
   4   extends PhabricatorFileController {
   5
   6   public function handleRequest(AphrontRequest $request) {
   7     $viewer = $request->getViewer();
   8
   9     $object_phid = $request->getURIData('objectPHID');
  10     $file_phid = $request->getURIData('filePHID');
  11
  12     $object = id(new PhabricatorObjectQuery())
  13       ->setViewer($viewer)
  14       ->withPHIDs(array($object_phid))
  15       ->executeOne();
  16     if (!$object) {
  17       return new Aphront404Response();
  18     }
  19
  20     $handles = $viewer->loadHandles(
  21       array(
  22         $object_phid,
  23         $file_phid,
  24       ));
  25
  26     $object_handle = $handles[$object_phid];
  27     $file_handle = $handles[$file_phid];
  28     $cancel_uri = $file_handle->getURI();
  29
  30     $dialog = $this->newDialog()
  31       ->setViewer($viewer)
  32       ->setTitle(pht('Detach File'))
  33       ->addCancelButton($cancel_uri, pht('Close'));
  34
  35     $file_link = phutil_tag('strong', array(), $file_handle->renderLink());
  36     $object_link = phutil_tag('strong', array(), $object_handle->renderLink());
  37
  38     $attachment = id(new PhabricatorFileAttachmentQuery())
  39       ->setViewer($viewer)
  40       ->withObjectPHIDs(array($object->getPHID()))
  41       ->withFilePHIDs(array($file_phid))
  42       ->needFiles(true)
  43       ->withVisibleFiles(true)
  44       ->executeOne();
  45     if (!$attachment) {
  46       $body = pht(
  47         'The file %s is not attached to the object %s.',
  48         $file_link,
  49         $object_link);
  50
  51       return $dialog->appendParagraph($body);
  52     }
  53
  54     $mode_reference = PhabricatorFileAttachment::MODE_REFERENCE;
  55     if ($attachment->getAttachmentMode() === $mode_reference) {
  56       $body = pht(
  57         'The file %s is referenced by the object %s, but not attached to '.
  58         'it, so it can not be detached.',
  59         $file_link,
  60         $object_link);
  61
  62       return $dialog->appendParagraph($body);
  63     }
  64
  65     if (!$attachment->canDetach()) {
  66       $body = pht(
  67         'The file %s can not be detached from the object %s.',
  68         $file_link,
  69         $object_link);
  70
  71       return $dialog->appendParagraph($body);
  72     }
  73
  74     if (!$request->isDialogFormPost()) {
  75       $dialog->appendParagraph(
  76         pht(
  77           'Detach the file %s from the object %s?',
  78           $file_link,
  79           $object_link));
  80
  81       $dialog->addSubmitButton(pht('Detach File'));
  82
  83       return $dialog;
  84     }
  85
  86     if (!($object instanceof PhabricatorApplicationTransactionInterface)) {
  87       $dialog->appendParagraph(
  88         pht(
  89           'This object (of class "%s") does not implement the required '.
  90           'interface ("%s"), so files can not be manually detached from it.',
  91           get_class($object),
  92           'PhabricatorApplicationTransactionInterface'));
  93
  94       return $dialog;
  95     }
  96
  97     $editor = $object->getApplicationTransactionEditor()
  98       ->setActor($viewer)
  99       ->setContentSourceFromRequest($request)
 100       ->setContinueOnNoEffect(true)
 101       ->setContinueOnMissingFields(true);
 102
 103     $template = $object->getApplicationTransactionTemplate();
 104
 105     $xactions = array();
 106
 107     $xactions[] = id(clone $template)
 108       ->setTransactionType(PhabricatorTransactions::TYPE_FILE)
 109       ->setNewValue(
 110         array(
 111           $file_phid => PhabricatorFileAttachment::MODE_DETACH,
 112         ));
 113
 114     $editor->applyTransactions($object, $xactions);
 115
 116     return $this->newRedirect()
 117       ->setURI($cancel_uri);
 118   }
 119
 120 }