[components] refactor main template header: make it much more flexible by using CtxComponent
* rename userlink class (not private) with somewhat bw compat
* make some cosmetic adjustements on log-in/registration components
* update to component api, though this may breaks some sub-classes
(for application customizing the breadcrumbs component for instance)
/* -*- sql -*-
mysql specific registered procedures,
*/
/* XXX limit_size version dealing with format as postgres version does.
XXX mysql doesn't support overloading, each function should have a different name
NOTE: fulltext renamed since it cause a mysql name conflict
*/
CREATE FUNCTION text_limit_size(vfulltext TEXT, maxsize INT)
RETURNS TEXT
NO SQL
BEGIN
IF LENGTH(vfulltext) < maxsize THEN
RETURN vfulltext;
ELSE
RETURN SUBSTRING(vfulltext from 1 for maxsize) || '...';
END IF;
END ;;