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Ruby ActiveRecord Basics Migrations and Relationships Relationships

Michael Mykytyn
Michael Mykytyn
23,440 Points
Posted by Michael Mykytyn
Michael Mykytyn
23,440 Points

Active Record Relationship challenge

Hi

This is the challenge Question:

Let's say we have a BlogPost model and a Comment model that represents comments someone might leave on a blog post. The comments table includes a blog_post_id column. Please setup the relationships correctly.

This is my answer:

class BlogPost < ActiveRecord::Base
  has_many :comments
end

class Comment < ActiveRecord::Base
  belongs_to :blog_post_id
end

This is the error I"m getting:

Bummer! Remember, belongs_to always wants the singular version of the relationship.

Any clue as to what is going wrong?

TIA

Mike

3 Answers

Dino Paškvan
PLUS
Dino Paškvan
Courses Plus Student 44,107 Points
Dino Paškvan
Dino Paškvan
Courses Plus Student 44,107 Points

Comments belong to blog posts:

belongs_to :blog_post

not blog_post_ids.

Michael Mykytyn
Michael Mykytyn
23,440 Points
Michael Mykytyn
Michael Mykytyn
23,440 Points

Thanks for the help Dino!

Mike

Michael Mykytyn
Michael Mykytyn
23,440 Points
Michael Mykytyn
Michael Mykytyn
23,440 Points

Sorry Dino still not correct. Could you post your complete answer?

Dino Paškvan
Dino Paškvan
Courses Plus Student 44,107 Points

The rest of your code is correct, it's just that you need to remove the _id part:

class BlogPost < ActiveRecord::Base 
  has_many :comments 
end

class Comment < ActiveRecord::Base 
  belongs_to :blog_post 
end