【Rails学习笔记】用户注册的流程

在网站布局中加入debug信息 

<%= debug(params) if Rails.env.development? %>

添加 Gravatar 头像和侧边栏

<% provide(:title, @user.name) %>
<h1>
  <%= gravatar_for @user %>
  <%= @user.name %>
</h1>

然后需要我们自己去定义Gravatar方法 

module UsersHelper

  # Returns the Gravatar (http://gravatar.com/) for the given user.
  def gravatar_for(user)
    gravatar_id = Digest::MD5::hexdigest(user.email.downcase)
    gravatar_url = "https://secure.gravatar.com/avatar/#{gravatar_id}"
    image_tag(gravatar_url, alt: user.name, class: "gravatar")
  end
end

填写用户注册表单：

<% provide(:title, 'Sign up') %>
<h1>Sign up</h1>

<div class="row">
  <div class="span6 offset3">
    <%= form_for(@user) do |f| %>

      <%= f.label :name %>
      <%= f.text_field :name %>

      <%= f.label :email %>
      <%= f.text_field :email %>

      <%= f.label :password %>
      <%= f.password_field :password %>

      <%= f.label :password_confirmation, "Confirmation" %>
      <%= f.password_field :password_confirmation %>

      <%= f.submit "Create my account", class: "btn btn-large btn-primary" %>
    <% end %>
  </div>
</div>

然后要分别对注册成功和失败两种情况进行测试 

describe "signup" do
    before {visit signup_path}
    let(:submit) {"Create my account"}

    describe "with invalid information" do
      it "should not create a user" do
        expect {click_button submit}.not_to change(User, :count)

      end
    end
    describe "with valid information" do
      before do
        fill_in "Name", with: "Example User"
        fill_in "Email", with: "[email protected]"
        fill_in "Password", with: "foobar"
        fill_in "Confirmation", with: "foobar"
      end
      it "should create a user" do
        expect {click_button submit}.to change(User, :count).by(1)
      end
    end

  end

对应action代码如下：

def create
  		@user = User.new(user_params)
  		if @user.save
  			#
  			flash[:success] = "Welcome to the Sample App!"
  			redirect_to @user
  		else
  			render 'new'
  		end
  	end