/**
* Move category to another parent node
*
* @param EM_Blog_Model_Category $category
* @param EM_Blog_Model_Category $newParent
* @param null|int $afterCategoryId
* @return EM_Blog_Model_Resource_Category
*/
public function changeParent(EM_Blog_Model_Category $category, EM_Blog_Model_Category $newParent, $afterCategoryId = null)
{
$childrenCount = $this->getChildrenCount($category->getId()) + 1;
$table = $this->getEntityTable();
$adapter = $this->_getWriteAdapter();
$levelFiled = $adapter->quoteIdentifier('level');
$pathField = $adapter->quoteIdentifier('path');
/**
* Decrease children count for all old category parent categories
*/
$adapter->update($table, array('children_count' => new Zend_Db_Expr('children_count - ' . $childrenCount)), array('entity_id IN(?)' => $category->getParentIds()));
/**
* Increase children count for new category parents
*/
$adapter->update($table, array('children_count' => new Zend_Db_Expr('children_count + ' . $childrenCount)), array('entity_id IN(?)' => $newParent->getPathIds()));
$position = $this->_processPositions($category, $newParent, $afterCategoryId);
$newPath = sprintf('%s/%s', $newParent->getPath(), $category->getId());
$newLevel = $newParent->getLevel() + 1;
$levelDisposition = $newLevel - $category->getLevel();
/**
* Update children nodes path
*/
$adapter->update($table, array('path' => new Zend_Db_Expr('REPLACE(' . $pathField . ',' . $adapter->quote($category->getPath() . '/') . ', ' . $adapter->quote($newPath . '/') . ')'), 'level' => new Zend_Db_Expr($levelFiled . ' + ' . $levelDisposition)), array($pathField . ' LIKE ?' => $category->getPath() . '/%'));
/**
* Update moved category data
*/
$data = array('path' => $newPath, 'level' => $newLevel, 'position' => $position, 'parent_id' => $newParent->getId());
$adapter->update($table, $data, array('entity_id = ?' => $category->getId()));
// Update category object to new data
$category->addData($data);
return $this;
}
/**
* Check is category in list of store categories
*
* @param EM_Blog_Model_Category $category
* @return boolean
*/
public function isInRootCategoryList($category)
{
$rootCategoryId = Mage::helper('blog/category')->getRootCategory()->getId();
return in_array($rootCategoryId, $category->getParentIds());
}
