<%= @product.categories.map(&:name).to_sentence %> On Apr 15, 5:38 pm, David Zhu <[email protected]> wrote: > Hey, > > I followed Ryan Bates tutorials here about implemting checkboxes with > has and belongs to many relationships. > > http://railscasts.com/episodes/17-habtm-checkboxes > > In case you dont have time to watch it, heres a quick summary-- > > ---------------------------------------------------------------------------- > > Products and categories have the has and belongs to many relationship > between them. > > Then, in the products form, you can put this for creating check boxes, > the ultimate goal of assigning this product with many categories-- > > <% for category in Category.find(:all) %> > <div> > <%= check_box_tag "product[category_ids][]", category.id, > @product.categories.include?(category) %> > <%= category.name %> > </div> > <% end %> > > --------------------------------------------------------------- > > Ok great, that works. > > the checkboxes all submit. It works great. > > But my question is-- > > How can I display what categories a certain product belongs to? Most > likely using a FOR loop, but I'm not too sure how to make one that > displays the categories of a product. > > Thanks, and feel free to ask more questions if u dont understand :) > thanks > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group > athttp://groups.google.com/group/rubyonrails-talk?hl=en.
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