如何将登录表单放在Devise和Rails的标题中 [英] How to put a login form in the header for Devise and Rails

问题描述

我想把一个登录表单放在我的网站的标题中。我使用的是Rails 3.2.8和最新的Devise。在 app / views / devise / sessions / new.html.erb 文件中，创建一个登录表单：

 <％= form_for（resource，：as => resource_name，：url => session_path（resource_name），：html => {：class =>'main'} ）do | f | ％GT; 
< div><％= f.label：login％> <％= f.text_field：login，：placeholder => '输入用户名'％>< / div> 
< div><％= f.label：password％> <％= f.password_field：password，：placeholder => '输入密码'％>< / div> 
<％devise_mapping.rememberable？ - ％GT; 
< div><％= f.check_box：remember_me％> <％= f.label：remember_me％>< / div> 
<％end  - ％> 
<％= f.submitGo％> 
<％end％> 
  

如果我尝试复制该代码并将其放在我的 application.html中.erb ，我收到上面引用的资源变量的错误：

 未定义的局部变量或方法＃<＃< Class：0x3cb62c8>：0x3c73b00>的`resource' 
  

所以我可以使用正常的rails表单与 / users / sign_in 作为动作？登录后，如何告诉设计重定向到哪里？

解决方案

我们在Devise wiki上有一个维基页面：

https://github.com/plataformatec/devise/wiki/How-To:-Display-a-custom-sign_in-form-anywhere-in-your-app

享受！

I want to put a login form in the header of my website. I use Rails 3.2.8 and the latest Devise. In the app/views/devise/sessions/new.html.erb file a login form is created with:

  <%= form_for(resource, :as => resource_name, :url => session_path(resource_name), :html => {:class => 'main'}) do |f| %>
    <div><%= f.label :login %> <%= f.text_field :login, :placeholder => 'Enter username' %></div>
    <div><%= f.label :password %> <%= f.password_field :password, :placeholder => 'Enter password' %></div>
    <% if devise_mapping.rememberable? -%>
      <div><%= f.check_box :remember_me %> <%= f.label :remember_me %></div>
    <% end -%>
    <%= f.submit "Go" %>
  <% end %>

If I try to copy that code and put it in my application.html.erb, I get an error regarding that resource variable referenced above:

undefined local variable or method `resource' for #<#<Class:0x3cb62c8>:0x3c73b00>

So can I just use a normal rails form with /users/sign_in as the action? How do I tell devise where to redirect to after logging in?

解决方案

We have a wiki page for that on the Devise wiki:

https://github.com/plataformatec/devise/wiki/How-To:-Display-a-custom-sign_in-form-anywhere-in-your-app

Enjoy!

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