Question

我在测试控制器时出现此错误

ActionView::Template::Error: undefined method `full_name' for nil:NilClass

我的测试：

class PostsControllerTest < ActionController::TestCase
include Devise::TestHelpers

setup do
    @post = Post.create!(title: "my title", content: "bla bla bla")
    user = User.create!(email: "example@mail.com", first_name: "name", last_name: "surename",
                    password: "password", password_confirmation: "password")
    sign_in user
end

test "should show post" do
    get :show, id: @post
    assert_response :success
end

模型中的full_name方法：

def full_name
  "#{first_name} #{last_name}"
end

和我的观点：

Wrote by
  = @post.user.full_name

感谢您的帮助

Answer 1

根据您的要求，每个帖子必须与用户关联，因此您必须在帖子模型中进行belongs_to关联。类似的东西：

belongs_to :user

在用户模型中，例如：

has_many :posts

然后你的代码应该是：

setup do
  user = User.create!(email: "example@mail.com", 
         first_name: "name", last_name: "surename", 
         password: "password", password_confirmation: "password")
  @post = user.posts.create!(title: "my title", content: "bla bla bla")
  sign_in user
end

Rails未定义方法'full_name'

1 个答案: