Rails:如何在视图中确定控制器/动作 [英] Rails: How to determine controller/action in view

问题描述

这是我的部分表单:

<%= f.simple_fields_for :photo_attributes, :html => { :multipart => true } do |d| %>
    <%= d.label :image, :label => 'Upload logo', :required => false  %>
    <%= d.file_field :image, :label => 'Image, :required => false', :style => 'margin-bottom:2px'  %>
    <%= d.input :image_url, :label => 'Billed URL', :required => false %>
<% end %>

如果操作是编辑，我想改为显示:

If the action is edit I want to show this instead:

<%= f.simple_fields_for :photo, :html => { :multipart => true } do |d| %>
    <%= d.label :image, :label => 'Upload logo', :required => false  %>
    <%= d.file_field :image, :label => 'Image, :required => false', :style => 'margin-bottom:2px'  %>
    <%= d.input :image_url, :label => 'Billed URL', :required => false %>
<% end %>

我怎样才能做到这一点?

How can i achieve this?

推荐答案

一般表单部分只包含字段，不包含表单标签或字段，但是如果你没有其他方法，你总是可以看到什么params[:action] 当前设置为并相应地进行操作.

Generally the form partial only contains the fields, not the form tag or the fields for, but if you have no other way, you can always see what params[:action] is currently set to and behave accordingly.

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