search for: have_and_belong_to_many

...dering whether there is a nice Rubyesque way of selecting from a pair of HABTM models where one of them is inherited from another object. Here is the situation: I have a ''posts'' table from which ''replies'' and ''articles'' are inherited. Articles have_and_belong_to_many categories, but neither posts nor replies do (it just does not seem to be very useful). I want to have a page which shows (paginatedly) the articles in a selected category. So given a category, I would like to return an array of all of the articles associated with it. I am no master of SQL syntax,...

This is pretty much the same as last time around, if you recall. Thanks to Wilson for converting to the new form. I''ve added a few lines. Basically, it iterates over your model associations and does two things. - First, just try to call the association. Usually fixes speeling erors or other such silliness. - Second, try to find a record with an :include on the association. This