undefined local variable or method when rendering in show.html.erb - ruby-on-rails

Question

I'm trying to create a comment like system where the user can add a 'outcome' to a 'decision'.
Now i've rendered the form and the outcomes in the show.html.erb of 'decisions' but the outcomes give the following error: undefined local variable or method `outcomes' for #<#:0x007fc6046099e8>
My code:
controllers/outcomes_controller.rb
class OutcomesController < ApplicationController
def create
#decision = Decision.find(params[:decision_id])
#outcome = #decision.outcomes.create(params[:outcome].permit(:actual, :strength, :weakness))
redirect_to decision_path(#decision)
end
end
models/outcome.rb
class Outcome < ActiveRecord::Base
belongs_to :decision
end
models/decision.rb
class Decision < ActiveRecord::Base
has_many :outcomes
end
decisions/show.html.erb
<h1>Decision showpage</h1>
<h2><%= #decision.title %></h2>
<p><%= #decision.created_at %></p>
<p><%= #decision.forecast %></p>
<p><%= #decision.review_date %></p>
<%= render #decision.outcomes %>
<%= link_to "Delete Decision", decision_path(#decision), method: :delete, data: { confirm: "Are you sure?" } %>
<%= render "outcomes/form" %>
<%= render "outcomes/outcome" %>
outcomes/_form.html.erb
<%= form_for([#decision, #decision.outcomes.build]) do |f| %>
<%= f.label :actual %>:
<%= f.text_field :actual %> <br/>
<%= f.label :strength %>:
<%= f.text_area :strength %> <br/>
<%= f.label :weakness %>:
<%= f.text_area :weakness %> <br/>
<%= f.submit %>
<% end %>
outcomes/_outcome.html.erb
<%= outcomes.actual %>
<%= outcomes.strength %>
<%= outcomes.weakness %>
Can anyone help me by explaining why this error occurs and what i could do to make it work?

Answer 1

It sounds like you might need to pass your variables as arguments to your partial. When you try to call outcomes.actual, it doesn't know what outcomes is. You either need to pass it as a local variable:
<%= render "outcomes/outcome", locals: {outcomes: #decision.outcomes} %>
or simply get it from your #decision instance variable:
outcomes/_outcome.html.erb
<%= #decision.outcomes.actual %>.