Ruby Strong Params：NoMethodError未定义的方法允许使用Integer

问题描述

我的控制器：

class V1::SendContractController < V1::BaseController

  def create
    byebug
    bride_membership = Wedding.find(send_params[:weddingId]).bride_memberships[0]
    SendBrideContractJob.perform_Now(bride_membership,send_params[:contractId])
    render json: { enqueuedDelivery: true },status: :ok
  end

  private

  def send_params
    params
      .require(:weddingId)
      .permit(:contractId)
  end

end

我的参数

Parameters: {"weddingId"=>4,"contractId"=>20,"send_contract"=>{"weddingId"=>4,"contractId"=>20}}

错误

NoMethodError (undefined method `permit' for 4:Integer):

但是当我byebug时，我得到了想要的东西！

(byebug) params
<ActionController::Parameters {"weddingId"=>4,"controller"=>"v1/send_contract","action"=>"create","contractId"=>20}} permitted: false>
(byebug) params[:weddingId]
4

我将axios与拦截器配合使用来解决格式问题：

axios.interceptors.request.use((config) => {
  if(config.url !== "/authentications") {
    config.paramsSerializer = params => {
      // Qs is already included in the Axios package
      return qs.stringify(params,{
        arrayFormat: "brackets",encode: false
      });
    };
    axios.defaults.headers.common['Authorization'] = `Bearer ${store.state.token.token}`
    config.headers.common['Authorization']= `Bearer ${store.state.token.token}`
    axios.defaults.headers.common['Accept'] = 'application/vnd.bella.v1+json'
    config.headers.common['Accept'] = 'application/vnd.bella.v1+json'
    return config
  }
  return config
})

解决方法

我相信require会按您提供的键为您提供对象，以进行进一步的许可和/或要求呼叫。

也许您可以尝试（未测试）：

params.require(:weddingId)
params.permit(:weddingId,:contractId)

编辑：也有这个：Windows Central

,

请参阅此documentation和question。require确保存在参数。如果存在，则返回给定键处的参数，否则引发ActionController::ParameterMissing error。

p =  { "weddingId"=>4,"contractId"=>20 }

ActionController::Parameters.new(p).require(:weddingId)
# 4

p = { "weddingId"=>nil,"contractId"=>20 }

ActionController::Parameters.new(p).require(:weddingId)
# ActionController::ParameterMissing: param is missing or the value is empty: weddingId

如果要确保存在:weddingId：

def contract_params
    params.require(:weddingId)
    params.permit(:contractId,:weddingId)
end

顺便说一句，SendContractController更好地称为ContractsController。