MySQL GridContainer error

snowcreative · May 29, 2025, 5:38pm

I have one site whose log is filling up with this error:

(ERROR @ /home/actonwat/modxcore/xpdo/xpdo.class.php : 644) Could not load class: GridContainer from mysql.gridcontainer.

What could be causing that?

MODX 2.8.8, PHP 7.4

halftrainedharry · May 29, 2025, 7:09pm

Some installed extra (or custom code) must try to use the class “GridContainer”, that can’t be found.
This is not a class of the MODX core.

Try searching the folder core/components to see where (and by what extra) this class gets used.

It could be this extra:

github.com/goldsky/GridClassKey

core/components/gridclasskey/model/schema/gridclasskey.mysql.schema.xml

9757eeae9


      
          <?xml version="1.0" encoding="UTF-8"?>
          <model package="gridclasskey" version="1.0" baseClass="xPDOObject" platform="mysql" defaultEngine="MyISAM">
              <object class="GridContainer" extends="modResource" />
              <object class="StaticGridContainer" extends="modStaticResource" />
          </model>

snowcreative · May 30, 2025, 9:41pm

This is a very old site, and I must have used GridClassKey before I converted to using Collections. GridClassKey wasn’t installed, but there was one resource still in the database that was a grid class container. It wasn’t showing up in the tree in the manager (hence the errors). I deleted that, and all is well.