/**
* Update the tree to allow insertion of a leaf at the specified position
*
* @param ConnectionInterface $con Connection to use.
*/
public static function fixLevels(ConnectionInterface $con = null)
{
$c = new Criteria();
$c->addAscendingOrderByColumn(ChildCategory::LEFT_COL);
$dataFetcher = ChildCategoryQuery::create(null, $c)->setFormatter(ModelCriteria::FORMAT_STATEMENT)->find($con);
// set the class once to avoid overhead in the loop
$cls = CategoryTableMap::getOMClass(false);
$level = null;
// iterate over the statement
while ($row = $dataFetcher->fetch()) {
// hydrate object
$key = CategoryTableMap::getPrimaryKeyHashFromRow($row, 0);
/** @var $obj ChildCategory */
if (null === ($obj = CategoryTableMap::getInstanceFromPool($key))) {
$obj = new $cls();
$obj->hydrate($row);
CategoryTableMap::addInstanceToPool($obj, $key);
}
// compute level
// Algorithm shamelessly stolen from sfPropelActAsNestedSetBehaviorPlugin
// Probably authored by Tristan Rivoallan
if ($level === null) {
$level = 0;
$i = 0;
$prev = array($obj->getRightValue());
} else {
while ($obj->getRightValue() > $prev[$i]) {
$i--;
}
$level = ++$i;
$prev[$i] = $obj->getRightValue();
}
// update level in node if necessary
if ($obj->getLevel() !== $level) {
$obj->setLevel($level);
$obj->save($con);
}
}
$dataFetcher->close();
}
/**
* The returned array will contain objects of the default type or
* objects that inherit from the default.
*
* @param DataFetcherInterface $dataFetcher
* @return array
* @throws PropelException Any exceptions caught during processing will be
* rethrown wrapped into a PropelException.
*/
public static function populateObjects(DataFetcherInterface $dataFetcher)
{
$results = array();
// set the class once to avoid overhead in the loop
$cls = static::getOMClass(false);
// populate the object(s)
while ($row = $dataFetcher->fetch()) {
$key = CategoryTableMap::getPrimaryKeyHashFromRow($row, 0, $dataFetcher->getIndexType());
if (null !== ($obj = CategoryTableMap::getInstanceFromPool($key))) {
// We no longer rehydrate the object, since this can cause data loss.
// See http://www.propelorm.org/ticket/509
// $obj->hydrate($row, 0, true); // rehydrate
$results[] = $obj;
} else {
/** @var Category $obj */
$obj = new $cls();
$obj->hydrate($row);
$results[] = $obj;
CategoryTableMap::addInstanceToPool($obj, $key);
}
// if key exists
}
return $results;
}
/**
* Persists this object to the database.
*
* If the object is new, it inserts it; otherwise an update is performed.
* All modified related objects will also be persisted in the doSave()
* method. This method wraps all precipitate database operations in a
* single transaction.
*
* @param ConnectionInterface $con
* @return int The number of rows affected by this insert/update and any referring fk objects' save() operations.
* @throws PropelException
* @see doSave()
*/
public function save(ConnectionInterface $con = null)
{
if ($this->isDeleted()) {
throw new PropelException("You cannot save an object that has been deleted.");
}
if ($con === null) {
$con = Propel::getServiceContainer()->getWriteConnection(CategoryTableMap::DATABASE_NAME);
}
return $con->transaction(function () use($con) {
$isInsert = $this->isNew();
$ret = $this->preSave($con);
// nested_set behavior
if ($this->isNew() && $this->isRoot()) {
// check if no other root exist in, the tree
$rootExists = ChildCategoryQuery::create()->addUsingAlias(ChildCategory::LEFT_COL, 1, Criteria::EQUAL)->exists($con);
if ($rootExists) {
throw new PropelException('A root node already exists in this tree. To allow multiple root nodes, add the `use_scope` parameter in the nested_set behavior tag.');
}
}
$this->processNestedSetQueries($con);
if ($isInsert) {
$ret = $ret && $this->preInsert($con);
// timestampable behavior
if (!$this->isColumnModified(CategoryTableMap::COL_CREATED_AT)) {
$this->setCreatedAt(time());
}
if (!$this->isColumnModified(CategoryTableMap::COL_UPDATED_AT)) {
$this->setUpdatedAt(time());
}
} else {
$ret = $ret && $this->preUpdate($con);
// timestampable behavior
if ($this->isModified() && !$this->isColumnModified(CategoryTableMap::COL_UPDATED_AT)) {
$this->setUpdatedAt(time());
}
}
if ($ret) {
$affectedRows = $this->doSave($con);
if ($isInsert) {
$this->postInsert($con);
} else {
$this->postUpdate($con);
}
$this->postSave($con);
CategoryTableMap::addInstanceToPool($this);
} else {
$affectedRows = 0;
}
return $affectedRows;
});
}
