Rails 4不允许的参数：产品

Question

I need to save an array into my order.rb model.

The array is: params[:products]

The array is giving me something like this:

[{"'name'"=>"31 DVIE33N - Traditional ", "'id'"=>"2", "'quantity'"=>"1", "'accessory'"=>{"'id'"=>"7", "'name'"=>"31-SK4BLANKD-2"}}]

Create action:

def create
    @order = Order.new(order_params)

    respond_to do |format|
      if @order.save
        format.html { redirect_to admin_orders_path(@order), notice: 'Order was successfully created.' }
        format.json { render :show, status: :created, location: @order }
      else
        format.html { render :new }
        format.json { render json: @order.errors, status: :unprocessable_entity }
      end
    end
 end

My orders params.

private
    def order_params
      params.permit({:products=>[], products:[])
    end

I'm trying two different ways to permite products, that why you will see two arrays above

Please take a look, I'm not using somethig like:

params.require(:order).permit(:products => []}, :products=>[])

because if I use that I get the error:

ActionController::ParameterMissing - param is missing or the value is empty: order:

Thank you.

Answer 1

You need to do it in a Rails way...

In models/order.rb

class Order < ActiveRecord::Base
  has_many :products
  accepts_nested_attributes_for :products, allow_destroy: true
end

In orders_controller.rb

def order_params
  params.require(:order).permit(products_attributes: [:name, :etc])
end

In products_attributes array you can pass the product attributes you want to permit.

You need to send product_attributes like this: {“order”=>{“products_attributes"=>[{“name”=>”product 1”}, {“name”=>”product 2”}]}}