ActiveRecord: Strange Behavior with Polymorphic Associations in Rails 7.0.3
I'm trying to figure out I've been banging my head against this for hours. I tried several approaches but none seem to work. I'm working with a perplexing scenario when trying to use polymorphic associations in Rails 7.0.3. I've set up a model structure where a `Comment` can belong to either a `Post` or an `Image`. However, when I attempt to retrieve comments for a particular image, I'm getting an unexpected result. Specifically, when I try to fetch comments for an image with the following code: ```ruby image = Image.find(image_id) comments = image.comments ``` I receive the behavior `ActiveRecord::StatementInvalid: PG::UndefinedTable: behavior: relation "comments" does not exist`. I have verified the `comments` table exists in my database, and the polymorphic relationship is correctly set up in the `Comment` model: ```ruby class Comment < ApplicationRecord belongs_to :commentable, polymorphic: true end ``` And in the `Image` model: ```ruby class Image < ApplicationRecord has_many :comments, as: :commentable end ``` I've checked my migrations, and they look correct: ```ruby class CreateComments < ActiveRecord::Migration[7.0] def change create_table :comments do |t| t.text :body t.references :commentable, polymorphic: true, index: true t.timestamps end end end ``` What could be causing this behavior? I've tried restarting the server, running `rails db:migrate`, and even checking the schema to ensure everything is as expected. I'm wondering if there's something I'm missing in the setup or if there’s a known scenario with polymorphic associations in this version of Rails. Any insights would be greatly appreciated! I'm working on a service that needs to handle this. This is part of a larger service I'm building. Am I missing something obvious? Any advice would be much appreciated.