CODEWITHSUNDEEP
ruby-on-railscommentsassociations
Aluxzi
Aluxzi

Reputation: 177

Add user id to comment model

I'm following this tutorial :

http://guides.rubyonrails.org/getting_started.html#adding-a-second-model

It works when using commenter and comment where the user can add a name and message but I want to associate the comment with a user id (I already have users)

It uses rails generate model Comment commenter:string body:text post:references but I want to replace commenter:string with a user id association (user_id:integer?). In a previous question someone suggested author_id:integer but it did not work. Not sure where to start and there doesn't seem to be any tutorials on the subject (I have read RoR help guides on associations etc but can't find the correct way to generate a user id with the comment model)

comments_controller.rb

def create
@listing = Listing.find(params[:listing_id])
@comment = @listing.comments.create(params[:comment])
redirect_to listing_path(@listing)
end

Upvotes: 0

Views: 692

Answers (1)

fivedigit
fivedigit

Reputation: 18672

You can generate the Comment mode like this:

rails generate model Comment user:references body:text post:references

The references type you specify will actually create a user_id:integer column and adds a belongs_to association to the Comment model:

class Comment < ActiveRecord::Base
  belongs_to :user
  belongs_to :post
end

If you do want to have a Comment#commenter association to refer to the user rather than Comment#user, you can define it in your Comment model as follows:

class Comment < ActiveRecord::Base
  belongs_to :commenter, class_name: 'User', foreign_key: 'user_id'
  belongs_to :post
end

Upvotes: 1

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