Rails 4 Polymorphic associations and concerns

Question

I\'m trying to add an Evaluation model to my Rails 4 app.

I have made a model called evaluation.rb. It has:

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Answer 1

How do I setup the show page to show a user's evaluations received?

Your model concerns should help you with that. In your UsersController#show action, simply adding the following should do the trick:

@received_evaluations = @user.received_evaluations

Then you can use it in your show template:

<% @received_evaluations.each do |evaluation| %>
  // render some view stuff
<% end %>

Or use collection rendering.

note: the Evaluation.find(...) that's currently in your view should be put in the controller action, it's not good practice to leave that in the view.

How do I adapt the form so that it specifies a user id as the person who should receive the evaluation?

If you have identified the user that will serve as evaluatable you could set it in your controller action or in your view form in case you have a list of users to evaluate on your page.

In the controller:

@evaluation.evaluatable_id = user_to_evaluate.id
@evaluation.evaluatable_type = user_to_evaluate.class.to_s

Or this simpler statement should do the same:

@evaluation.evaluatable = user_to_evaluate

Similarly, you should be able to set the evaluator the same way:

@evaluation.evaluator = user_that_evaluates

In the view:

<% @users_to_evaluate.each do |user| %>
  <%= simple_form_for(Evaluation.new) do |f| %>
    <%= f.error_notification %>

    

      <%= f.input :score, collection: 1..10, autofocus: true, :label => "How do you rate this experience (1 being did not meet expectations - 10 being met all expectations) ?" %>
      <%= f.input :remark, as: :text, :label => "Evaluate your project experience", :input_html => {:rows => 10}  %>
      <%= f.hidden_field :evaluator_id, :value => current_user.id %>
      <%= f.hidden_field :evaluator_type, :value => current_user.class.to_s %>
      <%= f.hidden_field :evaluatable_id, :value => user.id %>
      <%= f.hidden_field :evaluatable_type, :value => user.class.to_s %>
    
  <% end %>
<% end %>