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Improve query efficiency.

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This commit is contained in:
Andrew McMillan 2012-05-14 21:02:58 +12:00
parent 6278dcb4ea
commit e88d22ec76
1 changed files with 11 additions and 8 deletions
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19
inc/caldav-GET-functions.php
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@ -42,20 +42,23 @@ function export_iCalendar( DAVResource $dav_resource ) {
* The CalDAV specification does not define GET on a collection, but typically this is
* used as a .ics download for the whole collection, which is what we do also.
*/
$sql = 'SELECT caldav_data, class, caldav_type, calendar_item.user_no, logged_user ';
$sql .= 'FROM collection INNER JOIN caldav_data USING(collection_id) INNER JOIN calendar_item USING ( dav_id ) WHERE ';
if ( isset($c->get_includes_subcollections) && $c->get_includes_subcollections ) {
$sql .= 'caldav_data.collection_id IN ';
$sql .= '(SELECT bound_source_id FROM dav_binding WHERE dav_binding.dav_name ~ :path_match ';
$sql .= 'UNION ';
$sql .= 'SELECT collection_id FROM collection WHERE collection.dav_name ~ :path_match) ';
$where = 'caldav_data.collection_id IN ';
$where .= '(SELECT bound_source_id FROM dav_binding WHERE dav_binding.dav_name ~ :path_match ';
$where .= 'UNION ';
$where .= 'SELECT collection_id FROM collection WHERE collection.dav_name ~ :path_match) ';
$params = array( ':path_match' => '^'.$request->path );
$distinct = 'DISTINCT ON (calendar_item.uid) ';
}
else {
$sql .= 'caldav_data.collection_id = :collection_id ';
$where = 'caldav_data.collection_id = :collection_id ';
$params = array( ':collection_id' => $dav_resource->resource_id() );
$distinct = '';
}
if ( isset($c->strict_result_ordering) && $c->strict_result_ordering ) $sql .= ' ORDER BY dav_id';
$sql = 'SELECT '.$distinct.' caldav_data, class, caldav_type, calendar_item.user_no, logged_user ';
$sql .= 'FROM collection INNER JOIN caldav_data USING(collection_id) ';
$sql .= 'INNER JOIN calendar_item USING ( dav_id ) WHERE '.$where;
if ( isset($c->strict_result_ordering) && $c->strict_result_ordering ) $sql .= ' ORDER BY calendar_item.uid, calendar_item.dav_id';
$qry = new AwlQuery( $sql, $params );
if ( !$qry->Exec("GET",__LINE__,__FILE__) ) {