问题描述
我正在尝试删除活动的存储附件,但实际上我不知道如何解决它,因为我遇到许多不同的错误。
错误:
NoMethodError at /rooms/10/photos/72
====================================
> undefined method `count' for nil:NilClass
app/views/photos/_photos_list.html.erb,line 1
我拥有的代码:
视图:photo_upload.html.erb
<div class="col-md-offset-3 col-md-12">
<%= form_for @room do |form| %>
<div class="form-group">
<%= form.file_field :photos,multiple: true,class: 'form-control'%>
</div>
<%= form.submit 'save',class: 'form-control btn btn-success'%>
<% end %>
</div>
<div id="photos"><%= render 'photos/photos_list' %></div>
部分:photos / _photos_list.html.erb
<% if @photos.count > 0 %>
<div class="row">
<% @photos.each do |photo| %>
<div class="col-md-4">
<%= image_tag photo,width: 500,class: 'img-thumbnail' %>
<%= link_to(room_photo_path(@room.id,photo.id),remote: true,method: :delete,data: {confirm: 'are you sure'}) do %>
<i class="fa fa-trash-o" area-hidden="true"></i>
<% end %>
</div>
<% end %>
</div>
<% end %>
控制器:photos_controller.html.erb
def destroy
@photo = ActiveStorage::Attachment.find(params[:id])
@photo.purge
respond_to :js
end
end
destroy.js.erb
$('#photos').html("<%= j render 'photos_list' %>")
型号:room.rb
has_many_attached :photos
解决方法
问题已解决:
在控制器中发现小错字,应该是这样的:
link_to(room_photo_path(photo.record_id,photo),remot...