form_for在设计如何工作？ [英] form_for in devise How it works?

问题描述

rails g devise：views命令生成该视图

rails g devise:views command generated that view

<h2>Sign up</h2>

    <%= form_for(resource, :as => resource_name, :url => registration_path(resource_name))   do |f| %>
    <%= devise_error_messages! %>

   <div><%= f.label :username %><br />
   <%= f.text_field :username, :autofocus => true %></div>

  <div><%= f.label :email %><br />
  <%= f.email_field :email, :autofocus => true %></div>

  <div><%= f.label :password %><br />
  <%= f.password_field :password %></div>

  <div><%= f.label :password_confirmation %><br />
  <%= f.password_field :password_confirmation %></div>

  <div><%= f.submit "Sign up" %></div>
<% end %>

<%= render "devise/shared/links" %>

我的问题是它的工作原理form_for（resource，：as => resource_name，...

My question is how does it work " form_for(resource, : as=>resource_name, ..."

推荐答案

资源是一个简单的记录（或对象）对于Devise而言，它通常被称为 User 或类似的内容。 form_for 的其余参数是选项，详见 form_for docs。

resource is simple a record (or object) - with respect to Devise, it's usually something called User or similar. The rest of the parameters for form_for are options, detailed in the form_for docs.

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