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best practices for a 'NoMethodError' when trying to call a method on an ActiveRecord association in Rails 7?

👀 Views: 83 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-12
ruby rails activerecord

This might be a silly question, but This might be a silly question, but I'm working with a `NoMethodError` when attempting to call a method on an association in my Rails 7 application. I have a `User` model that has many `Posts`, and I want to get the number of published posts for a specific user. Here's the code snippet I'm using: ```ruby class User < ApplicationRecord has_many :posts end class Post < ApplicationRecord belongs_to :user scope :published, -> { where(published: true) } end ``` And in my controller, I'm trying to fetch the count of published posts like this: ```ruby def show @user = User.find(params[:id]) @published_posts_count = @user.posts.published.count end ``` However, when I run this, I get the following behavior: ``` NoMethodError: undefined method `published' for #<ActiveRecord::AssociationRelation:0x00007f934b8b5e30> ``` I confirmed that the `published` scope is defined correctly in the `Post` model and I can access `@user.posts` without any issues. I also checked that the posts do have the `published` attribute in the database. I've tried calling `@user.posts.all.published.count` instead, but that doesn't solve the scenario either. It seems like the `published` scope is not being recognized on the association. I'm unsure if I have a versioning scenario or something else. My Gemfile.lock shows: ``` ruby (3.0.2) ruby on rails (7.0.4) active_record (7.0.4) ``` Can anyone provide insight into why the scope isn't being recognized and how I can fix this? I've looked through the Rails API documentation but couldn't find anything that stood out as a solution. The stack includes Ruby and several other technologies. What would be the recommended way to handle this? How would you solve this?