Have you looked at http://apidock.com/rails/v4.0.2/ActionView/Helpers/FormOptionsHelper/collection_check_boxes ? Seems to be exactly what you want.
On Tue, Apr 19, 2016 at 11:07 AM, Piotr Brych <[email protected]> wrote: > We are working with nested attributes and we've reached a point where > we're not sure if there is a better, clearer, "more rails" way of dealing > with it. > > We have 3 models - Organisation, Category and a strictly join table > CategoryOrganisation (no additional attributes). The relation between > Organisation and Category is many-to-many. > > Now, we want to create a form with checkboxes through which the categories > for organisations can be added and removed. The example form would look > like that: > > > [image: form1] > <https://cloud.githubusercontent.com/assets/12682792/14636248/993263cc-062a-11e6-85a2-de8388a75a3f.PNG> > > > Now, the form should behave like that: > > - when new action is hit, it should show all categories - unchecked, > - when create action is hit, but validations are not passing it should > render the new view, but keeping the checkboxes that were selected, > - when edit action is hit, is should show all categories and current > categories of the edited organisation should be checked, > - when create and update are successful, flow is redirected to show > action. > > We don't want to spoil your minds with our custom solution, but to get to > know if there is a clear, Rails solution for that. > > In our opinion, there is no such solution in Rails documentation, as we > found out reading following sources: > > - http://guides.rubyonrails.org/form_helpers.html, > - http://api.rubyonrails.org/classes/ActionView/Helpers/FormHelper.html > , > - > > http://api.rubyonrails.org/classes/ActiveRecord/NestedAttributes/ClassMethods.html > . > > API documentation doesn't get to many-to-many relation, which is the case > in our app. > > > In advance, thanks for help! > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/rubyonrails-talk/f61e6b1f-958f-4018-b73f-b5495ebef2a8%40googlegroups.com > <https://groups.google.com/d/msgid/rubyonrails-talk/f61e6b1f-958f-4018-b73f-b5495ebef2a8%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/CA%2BCQ936iC8C_PzMdzM-v4um30yETySHEnwf8GbuOLZfGw3iO_A%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
