Rails - how to reference namespaced table attributes in views - ruby-on-rails

Question

I am trying to learn how to use namespaces in my Rails 5 app.
I have an organisation model and I have also made a series of nested models under the folder name "stance". One of those models is called overview.
The associations are:
Organisation.rb
has_one :overview, class_name: Stance::Overview
accepts_nested_attributes_for :overview, reject_if: :all_blank, allow_destroy: true
Stance::Overview
class Stance::Overview < ApplicationRecord
belongs_to :organisation, inverse_of: :overview
My controllers for stance resources are nested under a folder called stance.
My routes are:
namespace :stance do
resources :overviews
end
In my stance view partial, I am trying to render the attributes from the overview table.
I have tried:
<p><%= #overview.internal_explanation %></p>
<p><%= #stance_overview.internal_explanation %></p>
<p><%= #stance.overview.internal_explanation %></p>
<p><%= #stance::overview.internal_explanation %></p>
I want to display this partial in my organisation show. I am trying to do that with:
<%= render 'stance/overviews/internal', overview: #overview %>
But I can't figure out how to access the overview table. Do I need to add a reference to 'stance' in the associations?
I can see that in the console I need to write:
o = Stance::Overview.create(internal_explanation: "test")
o = Stance::Overview.first
but I can't see how to use that in the code itself.
I can see in the console that there is a record for this attribute.
The name of the table in the schema is "stance_overview".
My organisation controller has:
class OrganisationsController < ApplicationController
before_action :set_organisation, only: [:show, :edit, :update, :destroy]
def index
#organisations = Organisation.all
end
def show
end
def new
#organisation = Organisation.new
#organisation.build_overview
end
def edit
#organisation.build_overview unless #organisation.overview
end
def create
#organisation = Organisation.new(organisation_params)
respond_to do |format|
if #organisation.save
format.html { redirect_to #organisation, notice: 'Organisation was successfully created.' }
format.json { render :show, status: :created, location: #organisation }
else
format.html { render :new }
format.json { render json: #organisation.errors, status: :unprocessable_entity }
end
end
end
def update
respond_to do |format|
if #organisation.update(organisation_params)
format.html { redirect_to #organisation, notice: 'Organisation was successfully updated.' }
format.json { render :show, status: :ok, location: #organisation }
else
format.html { render :edit }
format.json { render json: #organisation.errors, status: :unprocessable_entity }
end
end
end
def destroy
#organisation.destroy
respond_to do |format|
format.html { redirect_to organisations_url, notice: 'Organisation was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_organisation
#organisation = Organisation.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def organisation_params
params.fetch(:organisation, {}).permit(:title, :comment,
overview_attributes: [:internal_explanation, :external_explanation ]
)
end
end
I have also tried defining the strong params for organisation as:
stance_overview_attributes: [:internal_explanation, :external_explanation ]
I keep getting an error that says:
undefined method `internal_explanation' for nil:NilClass
Can anyone refer me to materials to help me learn how to use namespaces in my app. I am trying to understand the fundamentals of this so that I can bank some knowledge. I am finding things through trial and error but not understanding what's actually required (although in this case, none of my attempts are working out).

Answer 1

To access Overview model(table) when you working not in Stance namespace you have to use Stance::Overview. If working for example in a controller that in Stance namespace you can use just Overview for access.
To get access from the relation you don't need any additional notation just #organisation.overview.
If I understand correctly in you case you have to declare your partial as
<%= render 'stance/overviews/internal', overview: #organisation.overview %>
and in the partial you have to use overview without #.