Rendering partial in Rails - nested objects - ruby-on-rails

Question

I am trying to render a partial in my rails app.
I have done this successfully with other partials, but the difference between those that worked and this one is that this partial belongs to a nested model. It is nested inside the model's view that I am trying to use to render the partial.
I have two models, Project and Project_question.
Project has many project questions and accepts nested attributes for project question.
Project question belongs to Project.
My routes are:
resources :projects do
resources :project_questions do
resources :project_answers
end
end
My project question controller has:
class ProjectQuestionsController < ApplicationController
before_action :set_project_question, only: [:show, :edit, :update, :destroy]
# GET /project_questions
# GET /project_questions.json
def index
#project_questions = ProjectQuestion.all
end
# GET /project_questions/1
# GET /project_questions/1.json
def show
end
# GET /project_questions/new
def new
#project_question = ProjectQuestion.new
#project = Project.find(params[:project_id])
# #project_id = params[:project_id]
#project_question.project_answers[0] = ProjectAnswer.new
end
# GET /project_questions/1/edit
def edit
end
# POST /project_questions
# POST /project_questions.json
def create
#project_question = ProjectQuestion.new(project_question_params)
#project_question.project_id = project_question_params[:project_id]
respond_to do |format|
if #project_question.save
format.html { redirect_to project_url(Project.find(project_question_params[:project_id])), notice: 'Project question was successfully created.' }
format.json { render action: 'show', status: :created, location: #project_question }
else
format.html { render action: 'new' }
format.json { render json: #project_question.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /project_questions/1
# PATCH/PUT /project_questions/1.json
def update
respond_to do |format|
if #project_question.update(project_question_params)
format.html { redirect_to #project_question, notice: 'Project question was successfully updated.' }
format.json { head :no_content }
else
format.html { render action: 'edit' }
format.json { render json: #project_question.errors, status: :unprocessable_entity }
end
end
end
# DELETE /project_questions/1
# DELETE /project_questions/1.json
def destroy
#project_question.destroy
respond_to do |format|
format.html { redirect_to project_questions_url }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_project_question
#project_question = ProjectQuestion.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def project_question_params
params[:project_question].permit(:id, :title, :content, :project_id, :user_id,
project_answer_atttibutes: [:id, :answer, :project_question_id, :user_id]
)
end
end
My project question form has:
<%= simple_form_for [#project, #project_question] do |f| %>
<%= f.input :project_id, as: :hidden, input_html: {value: #project.id} %>
<%= f.input :title, label: 'Question:', :label_html => {:class => 'question-title'}, placeholder: 'Type your question here', :input_html => {:style => 'width: 100%', :rows => 4, class: 'response-project'} %>
<%= f.input :content, label: 'Is there any context or other information?', :label_html => {:class => 'question-title'}, placeholder: 'Context might help to answer your question', :input_html => {:style => 'width: 100%', :rows => 5, class: 'response-project'} %>
<br><br><br>
<%= f.button :submit, 'Send!', :class => "cpb" %>
My project question partial has:
</div>
<div class="generaltext">
<%= #project.project_question.try(:content) %>
</div>
Inside my project#show, I try to render the protect question partial as follows:
<%= render 'project_questions/pqps' %>
and the project_questions/_pqps.html.erb file contains:
<div class="containerfluid">
<div class="row">
<div class="col-md-10 col-md-offset-1">
<div class="categorytitle">
<%= #project.project_question.title %>
</div>
<div class="generaltext">
<%= #project.project_question.try(:content) %>
</div>
<span class="editproject">
<% if current_user.id == #project.creator_id %>
<%= link_to 'Answer this question', new_project_question_project_answer_path(:project_quesetion_id => #project_question.id) %>
<% end %>
</span>
</div>
</div>
</div>
The error message I get when I try is:
undefined method `project_question' for #<Project:0x0000010d8bad40>

Answer 1

My problem was the has_many relationship between project and project questions. I had to make a loop to show each question.
This worked for me:
<% #project.project_questions.each do |singleQuestion| %>
<div class="categorytitle">
<%= singleQuestion.title %>
</div>
<div class="generaltext">
<%= singleQuestion.try(:content) %>
</div>