ruby on rails 入门注意事项 3

参考我前面的博客:

?http://hw1287789687.iteye.com/blog/2288230

?http://hw1287789687.iteye.com/blog/2288267

(1)更新记录的视图

?我原来写的(不成熟):

<div>编辑</div>

<%= link_to "列表", {:action => ‘list‘} %>&nbsp;
<div>
  <%= form_for :article, method: "PUT", url: {action: "update"} do |f| %>

      <ul>
        <li>
          <label for="">title:</label>
          <input type="text" name="article[title]" value="<%= @article.title %>">
        </li>
        <li>
          <label for="">text:</label>
          <input type="text" name="article[text]" value="<%= @article.text %>">
        </li>
        <li>
          <%= f.submit %>
        </li>
      </ul>
      <input type="hidden" name="id" value="<%= @article.id %>">
  <% end %>
</div>

?

最佳实践:

<div>编辑</div>

<%= link_to "列表", {:action => ‘list‘} %>&nbsp;
<div>
  <%= form_for @article, method: "PUT" do |f| %>

      <ul>
        <li>
          <label for="">title:</label>
          <%= f.text_field :title%>
        </li>
        <li>
          <label for="">text:</label>
          <%= f.text_field :text%>
        </li>
        <li>
          <%= f.submit %>
        </li>
      </ul>
      
  <% end %>
</div>

?特点:

(a)没有手动指定表单提交的action;

(b)没有显式地给文本框赋值

(c)省略id的隐藏域

(2)创建控制器

?bin/rails generate controller pass

? ? ? create ?app/controllers/pass_controller.rb

? ? ? invoke ?erb

? ? ? create ? ?app/views/pass

? ? ? invoke ?rspec

? ? ? create ? ?spec/controllers/pass_controller_spec.rb

? ? ? invoke ?helper

? ? ? create ? ?app/helpers/pass_helper.rb

? ? ? invoke ? ?rspec

? ? ? create ? ? ?spec/helpers/pass_helper_spec.rb

? ? ? invoke ?assets

? ? ? invoke ? ?coffee

? ? ? create ? ? ?app/assets/javascripts/pass.coffee

? ? ? invoke ? ?scss

? ? ? create ? ? ?app/assets/stylesheets/pass.scss

(3)查看路由

?bin/rake routes

(4)创建实体类:

bin/rails generate model Pass title:string username:string ?pwd:string description:text status:tinyint

? ? ? invoke ?active_record

? ? ? create ? ?db/migrate/20160403064342_create_passes.rb

? ? ? create ? ?app/models/pass.rb

? ? ? invoke ? ?rspec

? ? ? create ? ? ?spec/models/pass_spec.rb

? ? ? invoke ? ? ?factory_girl

? ? ? create ? ? ? ?spec/factories/passes.rb

注意:列与列之间以空格分隔

?因为ruby on rails 是高度的约定优于配置,所以一些细节被隐藏了,比如你看不到form的action属性

ruby on rails 入门注意事项 3

原文：http://hw1287789687.iteye.com/blog/2288276