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原标题:Rails nested photo file upload form

I have a class Scene, which has_one Photo, and Photo belongs_to Scene. I want to create a form that ll update or create Scene and Photo simultaneously - if Scene already exists, it ll update the Photo with scene_id Scene.id, otherwise, it ll make a new Scene and a new Photo, or if there s no new photo, it ll just update the one Scene field in question ("description").

然而,我没有什么想法。 我感觉到的不是这些其他形式的。

安装了奥赫和照片模型,以使用阿塔图尔库。

最佳回答

假设

accepts_nested_attributes_for :photo

表格

<% form_for @scene do |scene_form| %>
  <!-- Fields for scene form -->

  <% scene_form.fields_for :photo do |photo_form| %>
    <!-- fields for photo form -->  
  <% end %>

<%= customer_form.submit %>
<% end %>
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