Ruby on rails 在Rails 4中创建特定于用户的参与页面

我有3个模型；考试、参与和用户。他们通过关系与许多人联系在一起，而参与模式是一种联合模式

我可以列出所有参与者或显示特定的参与者（请参见下面的“我的控制器”），但我的目标是创建一个名为“我的参与者”的页面，在该页面中，用户只能看到他们的参与者。参与模型有一个“user_id”字段用于此目的，但我不知道如何在controller中创建此类页面或方法

提前谢谢

以下是我的模型结构：

examice.rb=>

class Examination < ActiveRecord::Base
  has_many :participations
  has_many :users, :through => :participations

  has_many :bookings
  has_many :exam_centers, :through => :bookings
end

class Participation < ActiveRecord::Base
  belongs_to :user
  belongs_to :examination
end

class User < ActiveRecord::Base
  has_many :participations
  has_many :examinations, :through => :participations
end

#encoding: utf-8

class ParticipationsController < ApplicationController

  before_filter :authenticate_user!
  before_action :set_participation, only: [:show, :edit, :update, :destroy]
  before_filter :get_examination

  def get_examination
    @examination = Examination.find(params[:examination_id])
  end

  def index
    @participations = @examination.participations
    respond_to do |format|
      format.html
      format.csv { send_data @participations.to_csv }
      format.xls # { send_data @examinations.to_csv(col_sep: "\t") }
    end
  end

  def show
    @participation = @examination.participations.find(params[:id])
  end

  def new
    @participation = Participation.new
  end

  def edit
  end

  def create
    @participation = @examination.participations.new(participation_params)
    @participation.user = current_user

    respond_to do |format|
      if @participation.save
        format.html { redirect_to [@examination, @participation], notice: 'Başvuru işleminiz başarıyla tamamlandı! Lütfen başvurunuzu kontrol ediniz ve onaylayınız. Onaylanmamış başvurular geçersiz sayılacaktır!' }
        format.json { render action: 'show', status: :created, location: [@examination, @participation] }
      else
        render 'new'
        format.html { render action: 'new' }
        format.json { render json: @participation.errors, status: :unprocessable_entity }
      end
    end
  end

  def update
    respond_to do |format|
      if @participation.update(participation_params)
        format.html { redirect_to [@examination, @participation], notice: 'Başvurunuz Başarıyla Güncellendi! Lütfen başvurunuzu kontrol ediniz ve onaylayınız. Onaylanmamış başvurular geçersiz sayılacaktır!' }
        format.json { head :no_content }
      else
        format.html { render action: 'edit' }
        format.json { render json: participation.errors, status: :unprocessable_entity }
      end
    end
  end

  def destroy
    @participation.destroy
    respond_to do |format|
      format.html { redirect_to examination_participations_path }
      format.json { head :no_content }
    end
  end

  def approve_application
    @participation = @examination.participations.find(params[:id])
    @participation.is_approved = true
    @participation.save
    redirect_to examination_participation_path, notice: 'Kaydınızı Onayladınız! Tebrikler!'
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_participation
      @participation = Participation.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def participation_params
      params.require(:participation).permit(:user_id, :examination_id, :payment_status, :language_preference, :exam_center_preference, :disability)
    end
end

  create_table "examinations", force: true do |t|
    t.string   "name"
    t.string   "shortname"
    t.datetime "exam_date"
  end

  create_table "participations", force: true do |t|
    t.integer  "user_id"
    t.integer  "examination_id"
    t.boolean  "payment_status"
    t.string   "language_preference"
    t.string   "exam_center_preference"
  end

  create_table "users", force: true do |t|
    t.string   "email",                  default: "", null: false
    t.string   "first_name",             default: "", null: false
    t.string   "last_name",              default: "", null: false
    t.string   "id_number"
  end

devise_for :users

resources :examinations do
  resources :participations do
    member do
      get :update_profile_information
      get :approve_application
    end
  end
end

路线=>

class Examination < ActiveRecord::Base
  has_many :participations
  has_many :users, :through => :participations

  has_many :bookings
  has_many :exam_centers, :through => :bookings
end

class Participation < ActiveRecord::Base
  belongs_to :user
  belongs_to :examination
end

class User < ActiveRecord::Base
  has_many :participations
  has_many :examinations, :through => :participations
end

#encoding: utf-8

class ParticipationsController < ApplicationController

  before_filter :authenticate_user!
  before_action :set_participation, only: [:show, :edit, :update, :destroy]
  before_filter :get_examination

  def get_examination
    @examination = Examination.find(params[:examination_id])
  end

  def index
    @participations = @examination.participations
    respond_to do |format|
      format.html
      format.csv { send_data @participations.to_csv }
      format.xls # { send_data @examinations.to_csv(col_sep: "\t") }
    end
  end

  def show
    @participation = @examination.participations.find(params[:id])
  end

  def new
    @participation = Participation.new
  end

  def edit
  end

  def create
    @participation = @examination.participations.new(participation_params)
    @participation.user = current_user

    respond_to do |format|
      if @participation.save
        format.html { redirect_to [@examination, @participation], notice: 'Başvuru işleminiz başarıyla tamamlandı! Lütfen başvurunuzu kontrol ediniz ve onaylayınız. Onaylanmamış başvurular geçersiz sayılacaktır!' }
        format.json { render action: 'show', status: :created, location: [@examination, @participation] }
      else
        render 'new'
        format.html { render action: 'new' }
        format.json { render json: @participation.errors, status: :unprocessable_entity }
      end
    end
  end

  def update
    respond_to do |format|
      if @participation.update(participation_params)
        format.html { redirect_to [@examination, @participation], notice: 'Başvurunuz Başarıyla Güncellendi! Lütfen başvurunuzu kontrol ediniz ve onaylayınız. Onaylanmamış başvurular geçersiz sayılacaktır!' }
        format.json { head :no_content }
      else
        format.html { render action: 'edit' }
        format.json { render json: participation.errors, status: :unprocessable_entity }
      end
    end
  end

  def destroy
    @participation.destroy
    respond_to do |format|
      format.html { redirect_to examination_participations_path }
      format.json { head :no_content }
    end
  end

  def approve_application
    @participation = @examination.participations.find(params[:id])
    @participation.is_approved = true
    @participation.save
    redirect_to examination_participation_path, notice: 'Kaydınızı Onayladınız! Tebrikler!'
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_participation
      @participation = Participation.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def participation_params
      params.require(:participation).permit(:user_id, :examination_id, :payment_status, :language_preference, :exam_center_preference, :disability)
    end
end

  create_table "examinations", force: true do |t|
    t.string   "name"
    t.string   "shortname"
    t.datetime "exam_date"
  end

  create_table "participations", force: true do |t|
    t.integer  "user_id"
    t.integer  "examination_id"
    t.boolean  "payment_status"
    t.string   "language_preference"
    t.string   "exam_center_preference"
  end

  create_table "users", force: true do |t|
    t.string   "email",                  default: "", null: false
    t.string   "first_name",             default: "", null: false
    t.string   "last_name",              default: "", null: false
    t.string   "id_number"
  end

devise_for :users

resources :examinations do
  resources :participations do
    member do
      get :update_profile_information
      get :approve_application
    end
  end
end

---

例如，您可以创建一个新的控制器，

myparticipationscocontroller

，然后创建

index

操作来显示当前用户的参与

app/controllers/my_participations_controller.rb

class MyParticipationsController < ApplicationController
  before_filter :authenticate_user!

  def index
    @participations = current_user.participations
  end
end

如果需要，您可以删除

参与控制器
中的
索引
操作