Question

我正在尝试通过对Rails API的POST请求创建多个记录，但是我遇到了与params方面有关的问题。

正在发生的事情是未创建项目，因为模型中的回调正在查找不存在的值。我相信这与params有关。

这是我的代码：

{
    "product": [
        {
            "name": "Strap On SoftRack Roof Rack by Otium Acupressure",
            "link": "https://things.com/89902997836713867011111211111121/Strap-On-SoftRack-Roof-Rack-by-Otium",
            "category_old": "",
            "image_url": "https://thingd-media-ec1.com/default/899029978367138670_42120cf10765.jpg",
            "price": "160",
            "interest": "9999",
            "company": "ACME",
            "country": "USA",
            "revenue": "999999"
        },
        {
            "name": "Strap On SoftRack Roof Rack by Otium Acupressure 2",
            "link": "https://things.com/Strap-On-SoftRack-Roof-Rack-by-Otium",
            "category_old": "",
            "image_url": "https://thingd-media-ec1.com/default/899029978367138670_42120cf10765.jpg",
            "price": "160",
            "interest": "9999",
            "company": "ACME",
            "country": "USA",
            "revenue": "999999"
        }
    ]
}

我的json调用的原始内容是：

Parameters: {"product"=>[{"name"=>"Strap On SoftRack Roof Rack by Otium Acupressure", "link"=>"https://fancy.com/things/89902997836713867011111211111121/Strap-On-SoftRack-Roof-Rack-by-Otium", "category_
old"=>"", "image_url"=>"https://thingd-media-ec1.thefancy.com/default/899029978367138670_42120cf10765.jpg", "price"=>"160", "interest"=>"9999", "company"=>"Fancy", "country"=>"USA", "revenue"=>"999999"},
{"name"=>"Strap On SoftRack Roof Rack by Otium Acupressure 2", "link"=>"https://fancy.com/things/Strap-On-SoftRack-Roof-Rack-by-Otium", "category_old"=>"", "image_url"=>"https://thingd-media-ec1.thefancy.
com/default/899029978367138670_42120cf10765.jpg", "price"=>"160", "interest"=>"9999", "company"=>"Fancy", "country"=>"USA", "revenue"=>"999999"}], "import"=>{}}

由此产生的参数如下：

首次通话时的总参数。

{"name"=>"Strap On SoftRack Roof Rack by Otium Acupressure", "link"=>"https://fancy.com/things/89902997836713867011111211111121/Strap-On-SoftRack-Roof-Rack-by-Otium", "category_old"=>"", "i
mage_url"=>"https://thingd-media-ec1.thefancy.com/default/899029978367138670_42120cf10765.jpg", "price"=>"160", "interest"=>"9999", "company"=>"Fancy", "country"=>"USA", "revenue"=>"999999"}

一旦它们处于循环中，它们就会出现。

https://graph.facebook.com/v2.5/<AD_ID>/adcreatives

Answer 1

我相信你所寻找的更像是这样。在允许调用中放置根product键告诉rails这将是一个包含所记录键的对象数组。

def batch_create
  batch_create_product_params[:product].each do |product_params|
    product = Product.new(product_params)
    product.save
  end
  respond_to do |format|
    format.json { render json: @product }
  end
end

def batch_create_product_params
  params.permit(product: [:name, :link, :category_old, :image_url, :price, :interest, :revenue, :end_date, :company, :country, :above_average_revenue])
end

Answer 2

我不认为new采用数组。我想你需要这样做 - 在强参数中使用p param。

  def batch_create
    params[:product].each do |p|
      product = Product.new(batch_create_product_params(p)) # Pass p
      product.save
    end
    respond_to do |format|
      format.json { render json: @product }
    end
  end

  def batch_create_product_params(p) # Accept params
    p.permit(:name, :link, :category_old, :image_url, :price, :interest, :revenue, :end_date, :company, :country, :above_average_revenue)
  end

create确实需要一个数组。也许这会对你的情况有所帮助。

def batch_create
  product = Product.create(batch_create_product_params[:product])
  respond_to do |format|
    format.json { render json: @product }
  end
end

def batch_create_product_params
  params.permit(product: [:name, :link, :category_old, :image_url, :price, :interest, :revenue, :end_date, :company, :country, :above_average_revenue])
end

将多个项目发布到Rails API时的强制参数

2 个答案: