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   1  <?php
   2  
   3  final class PhabricatorProjectBoardReorderController
   4    extends PhabricatorProjectBoardController {
   5  
   6    private $projectID;
   7  
   8    public function willProcessRequest(array $data) {
   9      $this->projectID = $data['projectID'];
  10    }
  11  
  12    public function processRequest() {
  13      $request = $this->getRequest();
  14      $viewer = $request->getUser();
  15  
  16      $project = id(new PhabricatorProjectQuery())
  17        ->setViewer($viewer)
  18        ->requireCapabilities(
  19          array(
  20            PhabricatorPolicyCapability::CAN_VIEW,
  21            PhabricatorPolicyCapability::CAN_EDIT,
  22          ))
  23        ->withIDs(array($this->projectID))
  24        ->executeOne();
  25      if (!$project) {
  26        return new Aphront404Response();
  27      }
  28  
  29      $this->setProject($project);
  30  
  31  
  32      $project_id = $project->getID();
  33  
  34      $board_uri = $this->getApplicationURI("board/{$project_id}/");
  35      $reorder_uri = $this->getApplicationURI("board/{$project_id}/reorder/");
  36  
  37      if ($request->isFormPost()) {
  38        // User clicked "Done", make sure the page reloads to show the new
  39        // column order.
  40        return id(new AphrontRedirectResponse())->setURI($board_uri);
  41      }
  42  
  43      $columns = id(new PhabricatorProjectColumnQuery())
  44        ->setViewer($viewer)
  45        ->withProjectPHIDs(array($project->getPHID()))
  46        ->execute();
  47      $columns = msort($columns, 'getSequence');
  48  
  49      $column_phid = $request->getStr('columnPHID');
  50      if ($column_phid && $request->validateCSRF()) {
  51  
  52        $columns = mpull($columns, null, 'getPHID');
  53        if (empty($columns[$column_phid])) {
  54          return new Aphront404Response();
  55        }
  56  
  57        $target_column = $columns[$column_phid];
  58        $new_sequence = $request->getInt('sequence');
  59        if ($new_sequence < 0) {
  60          return new Aphront404Response();
  61        }
  62  
  63        // TODO: For now, we're not recording any transactions here. We probably
  64        // should, but this sort of edit is extremely trivial.
  65  
  66        // Resequence the columns so that the moved column has the correct
  67        // sequence number. Move columns after it up one place in the sequence.
  68        $new_map = array();
  69        foreach ($columns as $phid => $column) {
  70          $value = $column->getSequence();
  71          if ($column->getPHID() == $column_phid) {
  72            $value = $new_sequence;
  73          } else if ($column->getSequence() >= $new_sequence) {
  74            $value = $value + 1;
  75          }
  76          $new_map[$phid] = $value;
  77        }
  78  
  79        // Sort the columns into their new ordering.
  80        asort($new_map);
  81  
  82        // Now, compact the ordering and adjust any columns that need changes.
  83        $project->openTransaction();
  84          $sequence = 0;
  85          foreach ($new_map as $phid => $ignored) {
  86            $new_value = $sequence++;
  87            $cur_value = $columns[$phid]->getSequence();
  88            if ($new_value != $cur_value) {
  89              $columns[$phid]->setSequence($new_value)->save();
  90            }
  91          }
  92        $project->saveTransaction();
  93  
  94        return id(new AphrontAjaxResponse())->setContent(
  95          array(
  96            'sequenceMap' => mpull($columns, 'getSequence', 'getPHID'),
  97          ));
  98      }
  99  
 100      $list_id = celerity_generate_unique_node_id();
 101  
 102      $list = id(new PHUIObjectItemListView())
 103        ->setUser($viewer)
 104        ->setID($list_id)
 105        ->setFlush(true)
 106        ->setStackable(true);
 107  
 108      foreach ($columns as $column) {
 109        $item = id(new PHUIObjectItemView())
 110          ->setHeader($column->getDisplayName())
 111          ->addIcon('none', $column->getDisplayType());
 112  
 113        if ($column->isHidden()) {
 114          $item->setDisabled(true);
 115        }
 116  
 117        $item->setGrippable(true);
 118        $item->addSigil('board-column');
 119        $item->setMetadata(
 120          array(
 121            'columnPHID' => $column->getPHID(),
 122            'columnSequence' => $column->getSequence(),
 123          ));
 124  
 125        $list->addItem($item);
 126      }
 127  
 128      Javelin::initBehavior(
 129        'reorder-columns',
 130        array(
 131          'listID' => $list_id,
 132          'reorderURI' => $reorder_uri,
 133        ));
 134  
 135      return $this->newDialog()
 136        ->setTitle(pht('Reorder Columns'))
 137        ->setWidth(AphrontDialogView::WIDTH_FORM)
 138        ->appendParagraph(pht('Drag and drop columns to reorder them.'))
 139        ->appendChild($list)
 140        ->addSubmitButton(pht('Done'));
 141    }
 142  
 143  }