Skip to main content

This site requires you to update your browser. Your browsing experience maybe affected by not having the most up to date version.

General Questions

General questions about getting started with SilverStripe that don't fit in any of the categories above.

Moderators: martimiz, Sean, biapar, Willr, Ingo, swaiba, simon_w

$objs = DataObject::get('Group_Members'); doesn't work!


2 Posts   1469 Views


13 January 2010 at 12:07pm Community Member, 39 Posts

I'm trying to make a request to the table Group_Members.
I get an error "[User Error] Bad class to singleton() - Group_Members"

Line 261 in /var/www/***/subdomains/test2/httpdocs/sapphire/core/Core.php

252 *
253 * @param string $className
254 * @return Object
255 */
256 function singleton($className) {
257    global $_SINGLETONS;
258    if(!isset($className)) user_error("singleton() Called without a class", E_USER_ERROR);
259    if(!is_string($className)) user_error("singleton() passed bad class_name: " . var_export($className,true), E_USER_ERROR);
260    if(!isset($_SINGLETONS[$className])) {
261     if(!class_exists($className)) user_error("Bad class to singleton() - $className", E_USER_ERROR);
262       $_SINGLETONS[$className] = Object::strong_create($className,null, true);
263       if(!$_SINGLETONS[$className]) user_error("singleton() Unknown class '$className'", E_USER_ERROR);
264    }
265    return $_SINGLETONS[$className];
266 }

There is no ClassName field in the table. How to make a request?


14 January 2010 at 12:49pm Forum Moderator, 5511 Posts

Because Group_Members isn't a dataobject. That table is a relationship table made up of groups -> member relationships.

If you want to get all the groups which have a member you can call Groups() on a member object, and if you want all the members in a group you can call Members() on a group object.