/**
* Validates and creates changelog table with 2 columns.
* Updates changelog_name in the metadata.
*
* @return Enterprise_Mview_Model_Action_Changelog_Create
*/
public function execute()
{
$this->validate();
if (!$this->_changelog->isExists()) {
$this->_createChangelogTable();
}
$this->_metadata->setData('changelog_name', $this->_getChangelogName())->save();
return $this;
}
/**
* Drops changelog table
* Updates changelog_name in the metadata.
*
* @return Enterprise_Mview_Model_Action_Changelog_Create
*/
public function execute()
{
$this->_changelog->drop();
$this->_metadata->setData('changelog_name', null)->save();
return $this;
}
