rails ujs以阵列格式发送formdata而不是基于索引的对象

发布于 2025-02-12 07:32:58 字数 1290 浏览 1 评论 0原文

我正在尝试使用FormData和Rails UJ将数据发送到我的Rails Server。前端JS代码看起来像这样：

 Rails.ajax({
      url: "/reset-cart",
      type: "post",
      data: new FormData(this.formTarget),
      success: function(data) { console.log('success') },
      error: function(data) { console.log('error') }
    })


`Object.fromEntries(new FormData(this.formTarget))` returns 
{
  cart[cart_items_attributes][0][product_id]: "210"
  cart[cart_items_attributes][0][quantity]: "4"
  cart[cart_items_attributes][1][product_id]: "12"
  cart[cart_items_attributes][1][quantity]: "4"
}

在我的导轨控制器中，我接收到以这种方式形成的数据：

#<ActionController::Parameters {"cart"=>{"cart_items_attributes"=>{"0"=>{"product_id"=>"210", "quantity"=>"4"}, "1"=>{"product_id"=>"12", "quantity"=>"4"}}}, "controller"=>"carts", "action"=>"reset"} permitted: false>

我希望数据看起来更像：

{
  "cart"=> {
    "cart_items_attributes"=> [
      {
        "product_id"=>"210", 
        "quantity"=>"4"
      },{
        "product_id"=>"12",
        "quantity"=>"4"
     }
   ]
 }
}

其中cart_items_attributes是哈希的数组。是否有一种方法可以通过更改我在rails.ajax函数中发送数据的方式来实现这一目标，或者我必须在控制器中重新格式化我在params hash中收到的数据的自定义方法

原文

I am trying to send data to my rails server using formData and Rails ujs. The Front end js code looks like this :

 Rails.ajax({
      url: "/reset-cart",
      type: "post",
      data: new FormData(this.formTarget),
      success: function(data) { console.log('success') },
      error: function(data) { console.log('error') }
    })


`Object.fromEntries(new FormData(this.formTarget))` returns 
{
  cart[cart_items_attributes][0][product_id]: "210"
  cart[cart_items_attributes][0][quantity]: "4"
  cart[cart_items_attributes][1][product_id]: "12"
  cart[cart_items_attributes][1][quantity]: "4"
}

In my rails controller I receive data formated this way :

#<ActionController::Parameters {"cart"=>{"cart_items_attributes"=>{"0"=>{"product_id"=>"210", "quantity"=>"4"}, "1"=>{"product_id"=>"12", "quantity"=>"4"}}}, "controller"=>"carts", "action"=>"reset"} permitted: false>

I'd like the data to look more like :

{
  "cart"=> {
    "cart_items_attributes"=> [
      {
        "product_id"=>"210", 
        "quantity"=>"4"
      },{
        "product_id"=>"12",
        "quantity"=>"4"
     }
   ]
 }
}

where cart_items_attributes is a array of hash. Is there a way to achieve that by changing the way I send data in the Rails.ajax function or do I have to writte a custom method in the controller to reformat the data I receive in the params hash

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