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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

Model Admin - so many questions, so little documentation


18 Posts   8063 Views


13 August 2010 at 1:43am Community Member, 11 Posts

Hi swaiba,

I already found a solution.
I already have a class ItemAdmin extending ModelAdmin.
I created a class ItemAdmin_CollectionController extending ModelAdmin_CollectionController class.

Then I override ModelAdmin_CollectionController class by setting $collection_controller_class under class ItemAdmin
public static $collection_controller_class ="ItemAdmin_CollectionController"

I overloaded getSearchQuery() >>
function getSearchQuery( $searchCriteria ) {

      $query = parent::getSearchQuery( $searchCriteria )->leftJoin( 'Category', 'Category.ID = Product.CategoryID' );
      return $query->orderby( 'Category.Name, Product.Name ASC' );


It worked!

There's also another way though. You can extend TableListField and set $resultsTableClassName to class name you created.
You can then overload function getQuery() like this >>
function getQuery() {
   $this->customQuery->leftJoin( 'Category', 'Category.ID = Product.CategoryID');
   $this->customQuery->orderby( 'Category.Name, Product.Name ASC' );
return parent::getQuery();

I hope this helps to everyone who will encounter this issue.


13 August 2010 at 2:19am (Last edited: 24 September 2010 12:53am), Forum Moderator, 1796 Posts

nice one! that is a very simple example - thanks for posting the solution :)

this has worked very well for what I wanted, I did also add a condition to ensure that the extra condirtion is only applied to the intended managed model...

if ($this->modelClass == 'DataObjectName')
$query->where[] = "myfield = xyz";