ruby-on-rails - 我想在 ruby​​ on rails 中创建新行时将标题设置为必填字段

Question

我想让标题字段成为强制保存新行的字段:-

<h1> Edit Post</h1>
<%= form_for @post do |f| %>
<p>
   <br> <%= f.label :title, autofocus: true, placeholder: "title", :required => true %> <br/>
 <br> <%= f.text_field :title %> <br/>
</p>
<p>
    <%= f.label :body %><br/>
    <%= f.text_area :body %> <br/>
</p>

<p>
<%= f.submit "enter" %>
</p>
<% end %> 

无论如何它都在节省，请让我知道我要去哪里错了!

Answer 1

在前端 View 中你应该有:

<h1> Edit Post</h1>
<%= form_for @post do |f| %>
<p>
   <br> <%= f.label :title%> <br/>
 <br> <%= f.text_field :title, autofocus: true, placeholder: "title", required: true  %> <br/>
</p>
<p>
    <%= f.label :body %><br/>
    <%= f.text_area :body %> <br/>
</p>

<p>
<%= f.submit "enter" %>
</p>
<% end %> 

同样在您的模型上添加验证，例如:

#models/post.rb
class Post
  validates :title, presence: true
end