通过 rails API 调用添加多条记录

Question

我有一个 Availability 模型，我想发送 API post 请求一次创建多个可用性。

我偶然发现了这个 post on medium 我很兴奋它会解决我的问题但它没有，因为作者在我发送我的时使用了 Rails 表单模板通过 API 请求。

我进一步研究 documentation 找到了创建多个记录的方法，也尝试了那里的方法，但对我没有用。

这是我的控制器代码。 create 方法和 availability_params 方法。

module API
  module V1
    class AvailabilitiesController < ApiController
      def create
        availability = Availability.new(availability_params)
        availability.tutor = current_user

        availability.start_time = DateTime.parse("#{availability_params[:day_of_the_week]} #{availability_params[:start_time]}")
        availability.end_time = DateTime.parse("#{availability_params[:day_of_the_week]} #{availability_params[:end_time]}")

        if availability.start_time < DateTime.current && availability.end_time < DateTime.current
          availability.start_time += 1.week
          availability.end_time += 1.week
        end

        if availability.save
          render json: {
            availability: availability,
            message: 'Your availability was created successfully.'
          }
        else
          render json: { message: 'There was a problem creating your availability.', errors: availability.errors }, status: :bad_request
        end
      end

      def destroy
        Availability.where(id: params[:ids]).destroy_all
      end


      def availability_params
        params.require(:availability).permit(:day_of_the_week, :start_time, :end_time).tap do |availability_params|
          availability_params.require([:day_of_the_week, :start_time, :end_time])
        end
      end

    end
  end
end

前端使用axios的请求是这样的：

axios.post('/api/v1/availabilities', { availability: payload })

销毁函数也发送这种类型的请求：

axios.delete('/api/v1/availabilities', { params: { ids: payload } })

该请求的示例输出，发送时如下所示：

web_1        | Started POST "/api/v1/availabilities" for 172.18.0.1 at 2018-10-29 18:07:27 +0000
web_1        | Cannot render console from 172.18.0.1! Allowed networks: 127.0.0.1, ::1, 127.0.0.0/127.255.255.255
web_1        | Processing by API::V1::AvailabilitiesController#create as JSON
web_1        |   Parameters: {"availability"=>[{"start_time"=>"2018-10-30T13:00:00.000Z", "end_time"=>"2018-10-30T13:30:00.000Z", "day_of_the_week"=>"Tuesday", "tutor_id"=>1}, {"start_time"=>"2018-10-30T13:30:00.000Z", "end_time"=>"2018-10-30T14:00:00.000Z", "day_of_the_week"=>"Tuesday", "tutor_id"=>1}, {"start_time"=>"2018-10-30T14:00:00.000Z", "end_time"=>"2018-10-30T14:30:00.000Z", "day_of_the_week"=>"Tuesday", "tutor_id"=>1}, {"start_time"=>"2018-10-30T14:30:00.000Z", "end_time"=>"2018-10-30T15:00:00.000Z", "day_of_the_week"=>"Tuesday", "tutor_id"=>1}, {"start_time"=>"2018-10-30T15:00:00.000Z", "end_time"=>"2018-10-30T15:30:00.000Z", "day_of_the_week"=>"Tuesday", "tutor_id"=>1}]}
web_1        |   User Load (1.0ms)  SELECT  "users".* FROM "users" WHERE "users"."id" =  ORDER BY id LIMIT   [["id", 1], ["LIMIT", 1]]
web_1        |   ↳ app/controllers/application_controller.rb:114
web_1        | Completed 500 Internal Server Error in 35ms (ActiveRecord: 1.0ms)
web_1        | 
web_1        | 
web_1        |   
web_1        | NoMethodError (undefined method `permit' for #<Array:0x00007f1f26d889d8>):

我到底做错了什么？任何建议将不胜感激谢谢。

Answer 1

你很接近。如果您查看日志，您会发现 params[:availability] 是一个数组，但是您的 create 方法将其处理为表示一项的属性的简单散列。

像这样循环：

 def create
    params[:availability].each { |availability_params|
     availability = Availability.find_or_create_by(availability_params[:id]).update_attributes(availability_params]
  }
  # etc
  end

通过 rails API 调用添加多条记录

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