Remove a single version or all versions of an attachment to
$pageId from the VFS backend.
| public removeAttachment ( integer $pageId, string $attachment, string $version = null ) | ||
| $pageId | integer | The Id of the page the file is attached to. |
| $attachment | string | The name of the file. |
| $version | string | If specified, the version to delete. If null, then all versions of $attachment will be removed. |
/**
* Removes a single version or all versions of an attachment from
* $pageId.
*
* @param integer $pageId The Id of the page the file is attached to.
* @param string $attachment The name of the file.
* @param string $version If specified, the version to delete. If null,
* then all versions of $attachment will be
* removed.
*
* @throws Wicked_Exception
*/
public function removeAttachment($pageId, $attachment, $version = null)
{
/* Try to delete from the VFS first. */
parent::removeAttachment($pageId, $attachment, $version);
/* First try against the current attachments table. */
$sql = 'DELETE FROM ' . $this->_params['attachmenttable'] . ' WHERE page_id = ? AND attachment_name = ?';
$params = array((int) $pageId, $attachment);
if (!is_null($version)) {
$sql .= ' AND attachment_version = ?';
$params[] = (int) $version;
}
try {
$this->_db->beginDbTransaction();
$result = $this->_db->delete($sql, $params);
/* Now try against the attachment history table. $params is
* unchanged. */
$sql = 'DELETE FROM ' . $this->_params['attachmenthistorytable'] . ' WHERE page_id = ? AND attachment_name = ?';
if (!is_null($version)) {
$sql .= ' AND attachment_version = ?';
}
$this->_db->delete($sql, $params);
$this->_db->commitDbTransaction();
} catch (Horde_Db_Exception $e) {
$this->_db->rollbackDbTransaction();
throw new Wicked_Exception($e);
}
}
