我正在通过Hartl教程第二次,只是这次我试图修改它的个人项目。现在我很难理解为什么我无法通过测试(或编辑设置页面呈现)。这个问题非常类似于this question,除了错误是为电子邮件返回而不是downcase,我使用默认测试套件而不是Rspec。RailstutorialActionView :: Template :: Error:未定义的方法`电子邮件'为零:NilClass
以下是错误代码:
ERROR["test_unsuccessful_edit", UsersEditTest, 0.7226080000109505]
test_unsuccessful_edit#UsersEditTest (0.72s)
ActionView::Template::Error: ActionView::Template::Error: undefined method `email' for nil:NilClass
app/helpers/users_helper.rb:6:in `gravatar_for'
app/views/users/edit.html.erb:8:in `_app_views_users_edit_html_erb___3727331653542369693_70276142435800'
test/integration/users_edit_test.rb:11:in `block in <class:UsersEditTest>'
和引用的每个文件:
应用程序/佣工/ user_helper
module UsersHelper
# Returns the Gravatar for the given user.
def gravatar_for(user, options = { size: 80 })
gravatar_id = Digest::MD5::hexdigest(user.email.downcase)
size = options[:size]
gravatar_url = "https://secure.gravatar.com/avatar/#{gravatar_id}"
image_tag(gravatar_url, alt: user.name, class: "gravatar")
end
end
应用程序/视图/用户/ edit.html.erb
<% provide(:title, "Edit user") %>
<% provide(:button_text, 'Edit account') %>
<h1>Update your profile</h1>
<div class="row">
<div class="col-md-6 col-md-offset-3">
<div class="gravatar_edit">
<%= gravatar_for @user %>
<a href="http://gravatar.com/emails" target="_blank" rel="noopener noreferrer">change</a>
</div>
<%= render 'form' %>
</div>
</div>
te ST /集成/ users_edit_test.rb
require 'test_helper'
class UsersEditTest < ActionDispatch::IntegrationTest
def setup
@user = users(:michael)
end
test "unsuccessful edit" do
log_in_as(@user)
get edit_user_path(@user)
assert_template 'users/edit'
patch user_path(@user), params: { user: { name: "",
email: "[email protected]",
password: "foo",
password_confirmation: "bar" } }
assert_template 'users/edit'
end
end
而且,因为这是问题的另一个问题,这里是用户模型的相关部分。如果我添加'!'到最后的email.downcase方法,所有使用电子邮件的其他测试都失败了,但没有它,它们都会通过(除了这个)。
应用程序/模型/ user.rb
class User < ApplicationRecord
attr_accessor :remember_token
before_save :downcase_email
...
private
# Converts email to all lower-case
def downcase_email
self.email = email.downcase
end
这里是用户控制器
app/controllers/user_controller.rb
class UsersController < ApplicationController
def show
@user = User.find(params[:id])
end
def new
@user = User.new
end
def create
@user = User.new(user_params)
if @user.save
log_in @user
flash[:success] = 'Welcome to the Sample App'
redirect_to @user
else
render 'new'
end
end
def update
@user = User.find(params[:id])
if @user.update_attributes(user_params)
# Handle a successful update.
else
render 'edit'
end
end
我不知道如果这有助于在所有,但是当我运行Rubocop我也得到这样的警告用户特定的助手是在错误: 应用程序/佣工/ users_helper.rb:5:5:W :Lint/UselessAssignment:无用的赋值给变量 - gravatar_id。 gravatar_id =摘要:: MD5 :: hexdigest(user.email.downcase) – oneWorkingHeadphone