You need to first create and save the Productcategory. Then you can call:

$ps->productcategories_push($pc);

Thanks for sharing your code! A great piece of work. I’ve used Ruby on Rails a bit myself and really missed its ActiveRecord implementation when coding PHP. I’ve got a question about your code. I have a many2many relationship between products and categories via the table products2categories. Which is the correct way of adding a new category and appending it to a products collection of categories updating the table products2categories? It wasn’t as easy as writing…

$ps = Product::find(‘first’, array(‘conditions’ => “`text` = ‘Prod1′”));
$ps->productcategories_push(new Productcategory(array(‘text’ => ‘Cat2′)));

This gave me a HasManyThroughCantAssociateNewRecords exception.

Can you help?

Thanks!