jquery-file-upload POST和嵌套路由 - 没有路由匹配PATCH

时间:2014-10-29 14:52:46

标签: ruby-on-rails ruby-on-rails-4 routing jquery-file-upload

在我的rails4应用中,我有一个型号产品,它有很多 ProductImages 。我试图通过使用file_field来获取jquery文件上传以在父表单中创建图像,并且我在选择文件时将我的字段设置为autoupload。我只在Product_images控制器中创建和销毁方法。

但是,当它试图发布到URL:“/ products / 1 / product_images”时,我收到路由错误。

No route matches [PATCH] "/products/1/product_images"

我在浏览器控制台中看到我的请求方法是“POST”,但rails应用程序试图将其匹配为PATCH ...

Remote Address:127.0.0.1:80
Request URL:http://appname.dev/products/1/product_images
Request Method:POST
Status Code:404 Not Found

是什么导致应用使用PATCH?


的routes.rb

resources :products do
  resources :product_images, only: [:create, :destroy]
end

形成图像的部分

<fieldset id="product-images">
    <%= file_field_tag "product_images[]", type: :file, id:"file-select", multiple:true %>
    <% f.fields_for :product_images do |builder| %>
        <%= render "product_images/product_image", f:builder %>
    <% end %>
</fieldset>

我的Javascript

$(function(){
    /* ---IMAGE AREA--- BEGIN */
    //JQ FILE UPLOAD FUNCTION
    var formURL = $(".edit_product").attr("action") + "/product_images";
    $('#file-select').fileupload({
        url:formURL,
        type:'POST',
        dataType: 'script',
        add: function (e, data) {
            data.context = $('<div class="img uploading"/>').appendTo("#product-images");
            data.submit();
        },
        done: function (e, data) {
            console.log(data.result);
            $.each(data.result.files, function (index, file) {
                console.log(file);
            });
            //$(".no_images").addClass("hidden");
        },
        option: {
                autoUpload: true,
        }
    });
});

控制器

class ProductImagesController < ApplicationController
  before_action :set_product_image, only: [:show, :destroy]

  def show
  end

  def create
    @product = Product.find(params[:product_id])
    @product_image = @product.product_images.create(product_image_params)

    if @product_image.save
      respond_to do |format|
        format.js
      end
    else 
      render :json => [{:error => "custom_failure"}], :status => 304
    end

  end

  def destroy
    @product_image.destroy
    render :json => true
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_product_image
      @product_image = ProductImage.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def product_image_params
      params.require(:product_image).permit(:product_id, :file, :title, :caption)
    end

end

1 个答案:

答案 0 :(得分:2)

由于您尝试在产品编辑表单中创建product_image,当JqueryFileUpload插件向服务器发送数据时,它会发送所有表单数据。

通过form_for方法检查生成的HTML并搜索名为method的隐藏字段。您会发现该值为patch

<input name="_method" type="hidden" value="patch">

Rails use this param to determine if POST is an PUT, PATCH or DELETE

你有两个选择来解决这个问题(我更喜欢第一个):

  1. patch路由添加到路由文件路由到product_images #create action:
  2. 在jqueryFileUpload插件的formData回调函数中编辑_method