I am working with custom grid. I have a literal value I need to pass to _prepareColumns(). Rather than setting up a custom renderer, I want to just add the literal value to the main collection.
In mysql it would be something like:
SELECT *, "my literal value" as "my_column" from some_table;
Is there any way I can add this to:
$collection = Mage::getModel('me/mymod')->getCollection();
Else, is there another way I can pass a value from _prepareCollection() to _prepareColumns() without using custom renderer?