Question

G’day,

I’m not familiar with MySQL and this will probably be an easy question!

I am trying to mod a Joomla plugin and am working with this code that works well for a similar function:

$q="SELECT `".$naming."` AS naming FROM `#__users` WHERE `id`='".$jomsocial_event->creator."' ";
$db->setQuery($q);
$eventcreatorname = $db->loadResult();
$eventcreator = '<a href=\"'.CRoute::_('index.php?option=com_community&view=profile&userid='.$jomsocial_event->creator).'\">'.addslashes($eventcreatorname).'</a>';

What I need to do is lookup the field id in the table community_groups and return the matching field name. What I have is (note that $jomsocial_event->contentid contains the group ID):

$q="SELECT `".$naming."` AS naming FROM `#__community_groups` WHERE `id`='".$jomsocial_event->contentid."' ";
$db->setQuery($q);
$eventgroupname = $db->loadResult();
$eventgroup = '<a href=\"'.CRoute::_('index.php?option=com_community&view=groups&task=viewgroup&groupid='.$jomsocial_event->contentid).'\">'.addslashes($eventcreatorname).'</a>';

It returns nothing as the query is wrong; what should it be for my usage?

Answer 1

I’d work backwards from the database.

i.e. turn on SQL logging and look at what’s actually arriving in the database. Tweak as necessary by playing with the resulting SQL until you get what you want (and expect) and then implement that in your code.