CODEWITHSUNDEEP
ruby-on-railsrubyruby-on-rails-4
momo
momo

Reputation: 1045

undefined method `each' when creating a new object in Rails 4

I created a model using the Rails generate command:

rails generate model Group users:string                                                                                                                                                                          mo@x1[35%]
  invoke  active_record
  create    db/migrate/20151130131319_create_groups.rb
  create    app/models/group.rb
  invoke    test_unit
  create      test/models/group_test.rb
  create      test/fixtures/groups.yml

Now in the rails console, when I try to create an object, it gives me an undefined method error.

2.0.0-p647 :032 >   Google = Group.create(users: "Google")
NoMethodError: undefined method `each' for "Google":String

Can anyone shed any light on this?

This is the .rb file of Group:

class Group < ActiveRecord::Base
end

Upvotes: 1

Views: 1216

Answers (2)

rlarcombe
rlarcombe

Reputation: 2996

Does your group model have a has_many association named :users?

It sounds to me like you have a naming conflict between your db column called "users" and the has_many association with your User model, also called "users".

If so, your create() is trying to set up the associated user records with a string, when it is expecting an array of users.

Best workaround here is to rename your database column in your groups table from "users" to something that won't clash.

Upvotes: 1

PatNowak
PatNowak

Reputation: 5812

Check the migration file. Maybe there's something wrong with the code block.

Upvotes: 0

Related Questions