Rails Arel unit test error

Rails
1

I have the following error:

ERROR[“test_character_should_be_valid”, CharacterTest, 0.214787]
test_character_should_be_valid#CharacterTest (0.21s)NoMethodError:
NoMethodError: undefined method val' for "$1":Arel::Nodes::BindParam app/models/user.rb:11:in block in class:User’
test/models/character_test.rb:8:in `setup’

From the following test: test/models/character_test.rb:

require 'test_helper'

class CharacterTest < ActiveSupport::TestCase

  def setup
    @user = User.new(name: "Example User", email:

“[email protected]”, callsign: “example”,
password: “foobar”, password_confirmation:
“foobar”)
@user.save
@character = @user.character
end

  test "character should be valid" do
    assert @character.valid?
  end

end # CharacterTest

In the gemfile:

gem ‘arel’, ‘6.0.0.beta2’

character.rb:

class Character < ActiveRecord::Base
belongs_to :sociable, polymorphic: trueend

user.rb:

class User < ActiveRecord::Base

has_one :character, as: :sociable

before_validation do
self.create_character unless character
end
.
.end

I can’t find anything about this particular arel error. My arel gem is
6.0.0.beta2, which seems to fix other problems (as in here
http://stackoverflow.com/questions/27139007/cant-migrate-database-after-scaffold-section-2-2-ruby-on-rails-tutorial-michae).
Has anyone seen anything like this before?

2

On 28 December 2014 at 10:08, Bazley [email protected] wrote:

    @character = @user.character

gem ‘arel’, ‘6.0.0.beta2’

has_one :character, as: :sociable

before_validation do
self.create_character unless character
end
.
.
end

You have not told us which is line 11 in user.rb, which is the line it
says the error is on.

Colin

3

Sorry, line 11 is:

self.create_character unless character # line 11

4

Problem solved: it’s because the columns sociable_id and sociable_type
weren’t defined in the schema.