ruby on rails 3 - Curl Post请求引发错误(422)，由于模型验证，尽管请求似乎是正确设置的

Question

我正在尝试创建一个简单的crud接口，吐出一些json。(api)

我正在使用鼓舞人心的spree代码库，以使它，到目前为止，没有令牌使其安全

请参阅下面的代码:

辅助/api/api_helper.rb

module Api
  module ApiHelper
    def required_fields_for(model)
      required_fields = model._validators.select do |field, validations|
        validations.any? { |v| v.is_a?(ActiveModel::Validations::PresenceValidator) }
      end.map(&:first)
    end
    def product_attributes
      [:id, :name]
    end
  end
end

视图/api/产品/new.rabl

object false
node(:attributes) { [*product_attributes] }
node(:required_attributes) { required_fields_for(Product) }

控制器/api/products_controller.rb

def new
end
def create
  @product = Product.new(params[:product])
  if @product.save
    respond_with(@product, :status => 201, :default_template => :show)
  else
    invalid_resource!(@product)
  end
end

当我通过curl做post请求时，该方法返回一个422 Unprocessable Entity错误，因为产品名称不应该为空(模型验证)。正如你所看到的，名称是正确设置的!

没有发现这个(连载)有什么问题吗?谢谢你的想法

curl -v -H "Accept: application/json" -H "Content-type: application/json" -X POST -d ' {"attributes":{"name":"test"}}'  http://localhost/api/brands
* About to connect() to localhost port 80 (#0)
*   Trying 127.0.0.1... connected
* Connected to localhost (127.0.0.1) port 80 (#0)
> POST /api/products HTTP/1.1
> User-Agent: curl/7.19.7 (universal-apple-darwin10.0) libcurl/7.19.7 OpenSSL/0.9.8r zlib/1.2.3
> Host: localhost
> Accept: application/json
> Content-type: application/json
> Content-Length: 31
> 
< HTTP/1.1 422 Unprocessable Entity
< Content-Type: application/json; charset=utf-8
< X-Meta-Request-Version: 0.2.0
< X-UA-Compatible: IE=Edge
< Cache-Control: no-cache
< X-Request-Id: e32527947ed4ae51052b4d65d9d4539f
< X-Runtime: 0.042655
< Connection: close
< 
* Closing connection #0
{"errors":{"name":["doit u00eatre rempli(e)"]}}

Answer 1

JSON有效负载预计嵌套在模型的名称下。试试这个:

-d ' {"product":{"name":"test"}}'