Rails 5 - Helper methods

Question

I am trying to learn how to use helper methods in my Rails 5 app.

I have a model called Proposal and another called User .

In my Proposal helper, I'm trying to write a helper to show the name and location of the parent user (proposals belong to users).

I have tried:

def text_for_proponent(proposal, user)
  return unless current_user.id == proposal.user.id
    render 'users/profiles/formal_name_title', user: @proposal.user
end

Then in my views/users/formal_name_title.html.erb, I have:

<%= @user.full_name.titleize %> · <%= @user.organisation.title.titleize %> · <%#= @user.addresses.first.country_name.titleize %>

Then in my proposals/show.html.erb, I have:

<h4><%= text_for_proponent(@proposal, @proposal.user) %></h4>

This isn't working. I can't find how to give the user instance to the helper to be used in populating the view.

Can anyone see where I'm going wrong?

Answer 1

The problem is that you're trying to access @proposal.user but @proposal is nil inside the helper. You should use the local variable proposal instead.

render 'users/profiles/formal_name_title', user: proposal.user

And, you should change your partial to use the local variable user .

<%= user.full_name.titleize %> · <%= user.organisation.title.titleize %> · <%= user.addresses.first.country_name.titleize %>