Question

我收到有关在我正在制作的网站上保存作业请求的错误。基本上，用户（候选人）将通过job / show.html.erb页面请求作业，然后评论将显示在show.html.erb页面上，其他候选人也已申请该作业。当用户在文本框中键入他们的名字并提交它时，我得到上面提到的错误。在线查看后，问题似乎在于我在模型中的实际情况。有什么想法吗？

RequestsController

 class RequestsController < ApplicationController
 before_action :authorise
 #set_request, only: [:show, :edit, :update, :destroy]

   def create
      @job = Job.find params[:job_id]
      @request = @job.requests.new(request_params) <- Error highlights this line
      @request.candidate_id = @current_candidate.id       #sets the user_id FK
      @request.save #saves the @comment
                  # object to the comments table
        respond_to do |format|
            format.html{redirect_to @job}
        end         
   end

   private
   def request_params 
   #This is the method ehich whitelists the data fields from the format
       params.require(:request).permit(:content, :job_id, :candidate_id)
   end
  end

申请型号

 class Request < ActiveRecord::Base
 belongs_to :job, dependent: :destroy
 has_many :candidates
 end

候选模型

 class Candidate < ActiveRecord::Base
 has_secure_password
 validates_uniqueness_of:can_email

 belongs_to :request

 validates :can_name, presence: true
 validates :can_surname, presence: true
 validates :college, presence: true
 validates :can_email, presence: true
 validates :address, presence: true
 validates :experience, presence: true
 validates :password_digest, presence: true
 validates :college_year, numericality: { only_integer: true }

 end

工作模式

  class Job < ActiveRecord::Base
  belongs_to :sector

  has_many :requests, dependent: :destroy

  validates :name, presence: true
  validates :employer, presence: true
  validates :sector, presence: true
  validates :experience_req, presence: true
  validates :job_info, presence: true
  end

Answer 1

假设您的routes.rb文件中定义了以下路由：

resources :jobs do
  resources :requests
end

嵌套路线，（见http://guides.rubyonrails.org/routing.html#nested-resources）

完全没必要通过job_id部分传递requests。即，您不需要将其作为输入包含在表单中，因为该URL已经通过了该参数。

查看你的服务器输出命中你的＆＃39; create`动作应该是这样的：

params = { job_id: 1, request: {content: "hello world", candidate_id: "123"}}

在这种情况下，您允许以下内容：

 def request_params 
     params.require(:request).permit(:content, :candidate_id)
 end

并且前两行的创建将是正确的：

 @job = Job.find(params[:job_id])
 @request = @job.requests.new(request_params)

RequestsController #create中的ActiveModel :: MissingAttributeError，无法写入未知属性`request_id'

1 个答案: