Question

I sadly encounter the problem, that when I try to create a Review the Product_id stays nil. Whats the cleanest way to fill this in for the product that I want to review?

Reviews_controller

def create
@user = current_user
@review = @user.reviews.new(params[:review])
if @review.save
  redirect_to products_path, notice: 'Thank you for your review'
else
    render 'new'
  end
end

My Product, Review and User are set up with the has_many and belongs_to relationships.

The New View for the Review

%h1 Write a Review

= form_for @review do |f|
  %fieldset
    = f.label :review
    = f.text_area :review
  %fieldset
    = f.label :rating
    = f.text_field :rating
  %fieldset
    = f.submit 'Post Review', class: 'btn btn-large btn-primary'

I’m aware that I’m not finding the Product – How do I get to that?

Answer 1

Since you are creating the object through an association use build

   @review = @user.reviews.build(params[:review])

that will extract the user’s id and add it to user_id in your reviews object. I need more information to find the product, you can most likely add a hidden_field in your review form that will have the Products id

  <%= hidden_field :product, @product.id %> #not sure how you are currently finding your product