[Rails] Unable to autoload constant issue

Ruby on Rails Thursday, January 18, 2018

I am switching old systems created with php to Rails.

I want to use the table 'servicename_user' of the previous system in the User model.

There is no problem with the console or controller, but when I try to create the rspec test, I get the following error message:

     Failure/Error: it { should validate_presence_of(:email) }

     LoadError:
       Unable to autoload constant USER, expected /Users/injung/Github/api/app/models/user.rb to define it

However, my user.rb file is located exactly where the error message was mentioned.

For reference, the test was written as follows.

require_relative '../../app/models/user'

describe User, type: :model do
  context 'validation' do
    it { should validate_presence_of(:author) }
    it { should validate_presence_of(:email) }
  end
end

The user model is as follows.

class User < ApplicationRecord
  self.table_name = 'servicename_user'
end

After some search, I found out that If my table name is servicename_user, my user model should be in app/models/servicename/user, but I do not want to do like this. Is there any good way?

It is difficult to change the table name because it references a lot on older systems.

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[Rails] Unable to autoload constant issue

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