Suppose I have some model instances, (that I don't call from an angularJS file but from my rails controller)
= f.fields_for :models, model do |builder|
%ul
= builder.hidden_field :some_id
= check_box_tag :id => "some_value"
I want to add some_value as a value to the hidden_field as soon as the checkbox is checked. How can I do that with angularJS ?
First, if you're generating AngularJS HTML files as rails views you are somehow defying one of the purposes of AngularJS: being a client side templating system, based on static files.
(see these slides to get an idea: http://www.slideshare.net/JamieDavidson2/rails-angular-meetup)
regarding your question, you have to setup an Angular controller to define a scope, then link the value of the check_box_tag to the scope using ng-model and that of the hidden_field to the same model but through a function that gives the right string based on the checkbox state.
If you want to keep it simple, for this use case you'd better use JQuery
