/**
* Removes the data from the data store.
*
* @param Enlight_Config $config
* @param array $fields
* @param bool $update
* @return Enlight_Config_Adapter_DbTable
*/
public function delete(Enlight_Config $config, $fields = null, $deleteDirty = false)
{
$name = $this->_namePrefix . $config->getName() . $this->_nameSuffix;
$section = explode($config->getSectionSeparator(), $config->getSection());
$dbTable = $this->getTable($this->_namespaceColumn === null ? $name : null);
$db = $dbTable->getAdapter();
if ($fields === null) {
$fields = $config->getDirtyFields();
}
if (empty($fields)) {
return $this;
}
$where = array();
$insertData = array();
if ($this->_namespaceColumn !== null) {
$insertData[$this->_namespaceColumn] = $name;
$where[] = $db->quoteInto($this->_namespaceColumn . '=?', $name);
}
if ($section !== null) {
if (is_array($this->_sectionColumn)) {
foreach ($this->_sectionColumn as $key => $sectionColumn) {
if (isset($section[$key])) {
$where[] = $db->quoteInto($sectionColumn . '=?', $section[$key]);
$insertData[$sectionColumn] = $section[$key];
}
}
} else {
$where[] = $db->quoteInto($this->_sectionColumn . '=?', $section);
$insertData[$this->_sectionColumn] = $section;
}
}
foreach ((array) $fields as $field) {
$fieldWhere = $where;
$fieldWhere[] = $db->quoteInto($this->_nameColumn . '=?', $field);
if (!$deleteDirty) {
$fieldWhere[] = $db->quoteInto($this->_dirtyColumn . '=?', 0);
}
$row = $dbTable->fetchRow($fieldWhere);
if ($row !== null) {
$row->delete();
}
}
return $this;
}