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PhabricatorBoardLayoutEngine.php
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Created
Wed, Feb 19, 23:06

PhabricatorBoardLayoutEngine.php
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<?php
final class PhabricatorBoardLayoutEngine extends Phobject {
private $viewer;
private $boardPHIDs;
private $objectPHIDs;
private $boards;
private $columnMap;
private $objectColumnMap = array();
private $boardLayout = array();
public function setViewer(PhabricatorUser $viewer) {
$this->viewer = $viewer;
return $this;
}
public function getViewer() {
return $this->viewer;
}
public function setBoardPHIDs(array $board_phids) {
$this->boardPHIDs = $board_phids;
return $this;
}
public function getBoardPHIDs() {
return $this->boardPHIDs;
}
public function setObjectPHIDs(array $object_phids) {
$this->objectPHIDs = $object_phids;
return $this;
}
public function getObjectPHIDs() {
return $this->objectPHIDs;
}
public function executeLayout() {
$viewer = $this->getViewer();
$boards = $this->loadBoards();
if (!$boards) {
return $this;
}
$columns = $this->loadColumns($boards);
$positions = $this->loadPositions($boards);
foreach ($boards as $board_phid => $board) {
$board_columns = idx($columns, $board_phid);
// Don't layout boards with no columns. These boards need to be formally
// created first.
if (!$columns) {
continue;
}
$board_positions = idx($positions, $board_phid, array());
$this->layoutBoard($board, $board_columns, $board_positions);
}
return $this;
}
public function getObjectColumns($board_phid, $object_phid) {
$board_map = idx($this->objectColumnMap, $board_phid, array());
$column_phids = idx($board_map, $object_phid);
if (!$column_phids) {
return array();
}
return array_select_keys($this->columnMap, $column_phids);
}
private function loadBoards() {
$viewer = $this->getViewer();
$board_phids = $this->getBoardPHIDs();
$boards = id(new PhabricatorObjectQuery())
->setViewer($viewer)
->withPHIDs($board_phids)
->execute();
$boards = mpull($boards, null, 'getPHID');
foreach ($boards as $key => $board) {
if (!$board->getHasWorkboard()) {
unset($boards[$key]);
}
}
return $boards;
}
private function loadColumns(array $boards) {
$viewer = $this->getViewer();
$columns = id(new PhabricatorProjectColumnQuery())
->setViewer($viewer)
->withProjectPHIDs(array_keys($boards))
->execute();
$columns = msort($columns, 'getSequence');
$columns = mpull($columns, null, 'getPHID');
$this->columnMap = $columns;
$columns = mgroup($columns, 'getProjectPHID');
return $columns;
}
private function loadPositions(array $boards) {
$viewer = $this->getViewer();
$positions = id(new PhabricatorProjectColumnPositionQuery())
->setViewer($viewer)
->withBoardPHIDs(array_keys($boards))
->withObjectPHIDs($this->getObjectPHIDs())
->execute();
$positions = msort($positions, 'getOrderingKey');
$positions = mgroup($positions, 'getBoardPHID');
return $positions;
}
private function layoutBoard(
$board,
array $columns,
array $positions) {
$board_phid = $board->getPHID();
$position_groups = mgroup($positions, 'getObjectPHID');
foreach ($columns as $column) {
if ($column->isDefaultColumn()) {
$default_phid = $column->getPHID();
break;
}
}
$layout = array();
$object_phids = $this->getObjectPHIDs();
foreach ($object_phids as $object_phid) {
$positions = idx($position_groups, $object_phid, array());
// Remove any positions in columns which no longer exist.
foreach ($positions as $key => $position) {
$column_phid = $position->getColumnPHID();
if (empty($columns[$column_phid])) {
unset($positions[$key]);
}
}
// If the object has no position, put it on the default column.
if (!$positions) {
$new_position = id(new PhabricatorProjectColumnPosition())
->setBoardPHID($board_phid)
->setColumnPHID($default_phid)
->setObjectPHID($object_phid)
->setSequence(0);
$positions = array(
$new_position,
);
}
foreach ($positions as $position) {
$column_phid = $position->getColumnPHID();
$layout[$column_phid][$object_phid] = $position;
}
}
foreach ($layout as $column_phid => $map) {
$map = msort($map, 'getOrderingKey');
$layout[$column_phid] = $map;
foreach ($map as $object_phid => $position) {
$this->objectColumnMap[$board_phid][$object_phid][] = $column_phid;
}
}
$this->boardLayout[$board_phid] = $layout;
}
}

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