search for: catalogue_categori

...understand I could use :uniq=>true on the model association but this would only prevent it from displaying duplicates, I want to stop duplicate associations being inserted in the first place. I have a vague idea of something using a callback to check before adding. has_and_belongs_to_many :catalogue_categories, :before_add => :evaluate_duplicate_category def evaluate_duplicate_category(catalogue_category) #check duplicate #if so raise error and abort add end However I am unsure how to abort the add at this stage and return an error. Could anyone help point me in the right direction? Tha...

Hi, New to RoR and I just wanted to check the correct process flow for this... I presently have a controller action: def destroy_category_association category = CatalogueCategory.find(params[:id]) product = Product.find(params[:product_id]) product.catalogue_categories.delete(category) end I display a list of categories assigned to a product, some of which I may wish to delete using the link below. The list of categories is stored in a <div id="associated_categories"><ul><li>...</li></div> structure. <%= link_to_r...