發送_destroy參數不刪除關聯

我有一張發票，其中有許多發票行。在編輯時當點擊刪除按鈕作爲發票行時，我使用javascript將隱藏的_destroy字段設置爲值1。提交時應該刪除這些項目。它正在工作，但它今天隨機停止。發送_destroy參數不刪除關聯

以下是發送的參數：

Parameters: { 
"recycler_invoice"=>{ 
    "number"=>"IT10059", 
    "customer_id"=>"1", 
    "date_entered"=>"10/04/2013", 
    "gold_spot_price_paid"=>"1248.12", 
    "silver_spot_price_paid"=>"22.46", 
    "platinum_spot_price_paid"=>"1206.13", 
    "refine_fee_percentage"=>"5.0", 
    "consulting_fee_percentage"=>"3.0", 
    "verify_fee_percentage"=>"2.0",    
    "recycler_invoice_lines_attributes"=>{ 
    "0"=>{"denomination_id"=>"11", "quantity"=>"315.767", "_destroy"=>"false", "id"=>"1023"}, 
    "1"=>{"denomination_id"=>"7", "quantity"=>"78.466", "_destroy"=>"false", "id"=>"1024"}, 
    "2"=>{"denomination_id"=>"1", "quantity"=>"1.174", "_destroy"=>"false", "id"=>"1025"}, 
    "3"=>{"denomination_id"=>"2", "quantity"=>"7.46", "_destroy"=>"false", "id"=>"1026"}, 
    "4"=>{"denomination_id"=>"9", "quantity"=>"28.909", "_destroy"=>"false", "id"=>"1027"}, 
    "5"=>{"denomination_id"=>"10", "quantity"=>"9.629", "_destroy"=>"false", "id"=>"1028"}, 
    "6"=>{"denomination_id"=>"13", "quantity"=>"19.77", "_destroy"=>"false", "id"=>"1029"}, 
    "7"=>{"denomination_id"=>"14", "quantity"=>"5.83", "_destroy"=>"false", "id"=>"1030"}, 
    "8"=>{"denomination_id"=>"22", "quantity"=>"240.37", "_destroy"=>"1", "id"=>"1031"}}}, 
"commit"=>"Submit", 
"id"=>"9"}

正如你可以看到，我想刪除的線具有1

_destroy這裏是我的更新代碼...很簡單：

def update 
    @recycler_invoice = RecyclerInvoice.find(params[:id]) 

    respond_to do |format| 
     if @recycler_invoice.update_attributes(params[:recycler_invoice]) 
     format.html { redirect_to @recycler_invoice, notice: 'Recycler invoice was successfully updated.' } 
     format.json { head :no_content } 
     else 
     format.html { render action: "edit" } 
     format.json { render json: @recycler_invoice.errors, status: :unprocessable_entity } 
     end 
    end 
    end

來源

2013-04-10 Bill Garrison