【发布时间】:2019-01-27 02:13:40
【问题描述】:
是否有人创建了一个表单,用户可以通过单击按钮从 Active Storage 和 Amazon S3 中删除他们之前上传的图像?我使用问题here 作为指导,但我的应用程序设置有点不同。图像保存为数组(请参阅控制器参数)。
表单呈现删除按钮和图像,但单击删除按钮时出现错误“找不到带有 'id'=eyJfcmFpbHM... 的空间”,并且我的 set_space 方法中的这一行被突出显示
@space = Space.find(params[:id])
这里是相关代码
控制器
class SpacesController < ApplicationController
before_action :set_space, except: [:index, :new, :create]
before_action :authenticate_user!, except: [:show]
def update
if @space.update(space_params)
flash[:notice] = "Saved!"
else
flash[:notice] = "Something went wrong. Please check your submission and try again."
end
redirect_back(fallback_location: request.referer)
end
def delete_image_attachment
@space_image = ActiveStorage::Blob.find_signed(params[:id])
@space_image.purge_later
redirect_to listing_space_path(@space)
end
private
def set_space
@space = Space.find(params[:id])
end
def space_params
params.require(:space).permit(:space_name, :space_type, :description, space_image: [])
end
end
带有删除按钮/图标的视图
<div>
<% if @space.image.attached? %>
<% @space.image.each do |image| %>
<%= image_tag image %>
<span>
<%= link_to '<- Remove', delete_image_attachment_space_url(image.signed_id),
method: :delete,
data: { confirm: 'Are you sure?' } %>
<i class="fas fa-trash"></i>
</span>
<% end %>
<% end %>
</div>
Routes.rb
resources :spaces, except: [:edit] do
member do
get 'listing'
delete :delete_image_attachment
end
end
【问题讨论】:
标签: ruby-on-rails amazon-s3 rails-activestorage