我在使用回形针上传多个文件时遇到问题,
我的模型就是这样
slider has_many imgarrays
imgarrays has_many imageobjects
imageobjects have_attachment(as for paperclip)
在我的其他模型上接收单个图像并使用回形针保存它没有问题,但我不确定如何处理imgarrays
在多个文件上传期间由 param 返回的数组。
这是我的 Rails 服务器日志:
Started POST "/slider" for 127.0.0.1 at 2012-07-23 10:14:17 +0800
Processing by SliderController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"7HcHtSlOsU/bnxb9emhAsSl/GFBraIE6NxwijHl3REM=", "slider"=>{"question"=>"", "answer"=>"", "score"=>"", "industry_name"=>"",
"imgarrays"=>[#<ActionDispatch::Http::UploadedFile:0x007fb471e99f30 @original_filename="Icon.png", @content_type="image/png", @headers="Content-Disposition: form-data; name=\"slider[imgarrays][]\"; filename=\"Icon.png\"\r\nContent-Type: image/png\r\n", @tempfile=#<File:/var/folders/2s/n9wb5x4534nfs1cbrlph32v00000gp/T/RackMultipart20120723-53499-1lyi4yf>>, #<ActionDispatch::Http::UploadedFile:0x007fb471e99dc8 @original_filename="Icon@2x.png", @content_type="image/png", @headers="Content-Disposition: form-data; name=\"slider[imgarrays][]\"; filename=\"Icon@2x.png\"\r\nContent-Type: image/png\r\n", @tempfile=#<File:/var/folders/2s/n9wb5x4534nfs1cbrlph32v00000gp/T/RackMultipart20120723-53499-10lala2>>, #<ActionDispatch::Http::UploadedFile:0x007fb471e99d50 @original_filename="greenButton.png", @content_type="image/png", @headers="Content-Disposition: form-data; name=\"slider[imgarrays][]\"; filename=\"greenButton.png\"\r\nContent-Type: image/png\r\n", @tempfile=#<File:/var/folders/2s/n9wb5x4534nfs1cbrlph32v00000gp/T/RackMultipart20120723-53499-or2rdk>>]}, "commit"=>"Create!"}
Completed 500 Internal Server Error in 18ms
ActiveRecord::AssociationTypeMismatch (Imgarray(#70206507050500) expected, got ActionDispatch::Http::UploadedFile(#70206487229960)):
app/controllers/slider_controller.rb:12:in `new'
app/controllers/slider_controller.rb:12:in `create'
Rendered /Users/Kinnovate/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.1.1/lib/action_dispatch/middleware/templates/rescues/_trace.erb (1.4ms)
Rendered /Users/Kinnovate/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.1.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (1.4ms)
Rendered /Users/Kinnovate/.rvm/gems/ruby-1.9.3-p194/gems/actionpack-3.1.1/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (6.5ms)
滑块的 new.html.erb
<div>
<%= form_for @slider ,:url=>"/slider" , :html => { :multipart => true } do |f| %>
<%= f.label :question , "question"%>
<%= f.text_field :question %> </br>
<%= f.label :answer , "answer array (comma seperated)"%>
<%= f.text_field :answer %> </br>
<%= f.label :score , "score"%>
<%= f.text_field :score %> </br>
<%= f.label :industry_name , "industry"%>
<%= f.text_field :industry_name %> </br>
<%= f.label :attachedimg , "image"%>
<%= f.file_field :imgarrays, :multiple =>:true %> </br>
<%= f.submit "Create", class: "btn btn-large btn-primary" %>
<% end %>
</div>
<%= link_to 'Cancel', slider_index_path %>