I have a structure in my new website where I need to link an 'Application' to multiple 'Products' (and show them on the Application page as thumbnails). The way I would have done this in the past is to create a many to many relationship such as this (In Application.php)

private static $many_many = array(
        'Products' => 'Product'
    );

Then I would choose the products to link to each Application by using a Grid FIeld.

However in this case i have multiple different types of Product e.g Product1 Product2 Product3.

I would like to do something such as

private static $many_many = array(
        'Products' => array( 'Product1', 'Product2', 'Product3')
    );

Then the grid field should allow me to search products of all three types. But this doesn't seem to work the way I wanted it to.

If anyone has done something similar in the past that could point me in the right direction, it would be greatly appreciated.

Many Thanks,
Adam.

If the classes 'Product1', 'Product2' and 'Product3' would extend a class 'Product', then you could continue to use $many_many = ['Products' => 'Product'];

Thanks Devlin, I worked out that I could do this last night and it works great :)

Cheers for the reply.