Rails Arelunit testing错误
我有以下错误:
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 ' test/models/character_test.rb:8:in `setup'
从以下测试:test / models / character_test.rb:
require 'test_helper' class CharacterTest < ActiveSupport::TestCase def setup @user = User.new(name: "Example User", email: "user@example.com", 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
在gemfile中:
gem 'arel', '6.0.0.beta2'
character.rb:
class Character < ActiveRecord::Base belongs_to :sociable, polymorphic: true end
user.rb:
class User < ActiveRecord::Base has_one :character, as: :sociable before_validation do self.create_character unless character # line 11 end . . end
我找不到任何关于这个特殊的arel错误的信息。 我的arel gem是6.0.0.beta2,它似乎解决了其他问题(如此处所示 )。 以前有人见过这样的事吗?
事实certificate这不是Arel错误 – 这是因为未在模式中定义sociable_id和sociable_type列。 我的愚蠢错误。 Arel提出exception是因为外键丢失了。 但是Arel在这里有一个改进的错误信息: https : //github.com/rails/rails/commit/78bd18a90992e3da767cfe492f1bc5d63077da8a