麻煩創建對象，驗證失敗validates_presence_of是觸發

Question

我有四個型號User，Event，Participant，ParticipantRole，我測試控制器，但我不能爲current_user創建event。這是我的模型

class User < ActiveRecord::Base 
    has_many :events 
    has_many :participants 
    has_many :events, through: :participants 
end 

class Event < ActiveRecord::Base 
    belongs_to :user 
    has_many :participants 
    has_many :users, through: :participants 

    validates_presence_of :user, :name 
end 

class Participant < ActiveRecord::Base 
    belongs_to :user 
    belongs_to :event 
    belongs_to :participant_role 

    validates_presence_of :user, :event, :participant_role 
end 

class ParticipantRole < ActiveRecord::Base 
    has_many :participants 
end 

當我運行我的測試bundle exec rspec spec/controllers/api/v1/events_controller_spec.rb

RSpec.describe Api::V1::EventsController, type: :controller do 

    let(:valid_attributes) { FactoryGirl.attributes_for(:event) } 

    let(:valid_session) do 
    login_user 
    end 

    describe 'POST #create' do 
    before(:each) do 
     request.headers['Authorization'] = valid_session[:token] 
     post :create, :event => valid_attributes.merge({ :user_id => valid_session[:id], :event_status_id =>1 }), format: :json 
    end 

    it 'Should create a new event' do 
     is_expected.to respond_with 201 
    end 
    end 
end 

我得到這個

1) Api::V1::EventsController POST #create Should create a new event 
    Failure/Error: post :create, :event => valid_attributes.merge({ :user_id => valid_session[:id], :event_status_id =>1 }), format: :json 
    ActiveRecord::RecordInvalid: 
     Validation failed: Participant role can't be blank 
    # ./app/controllers/api/v1/events_controller.rb:177:in `create' 
    # ./app/controllers/concerns/exception_aspects.rb:4:in `exception_wrapper' 
    # ./spec/controllers/api/v1/events_controller_spec.rb:23:in `block (3 levels) in <top (required)>' 

在我EventsController

api :POST, "/events", "Create a new event" 
    description "Create a new event" 
    param :event, Hash, :required => true, :action_aware => true do 
    param :event_status_id, Integer, "id of the status" 
    param :name, String, "name of the event" 
    param :description, String, "description of the event" 
    #param :target_date, DateTime, "date of the event" 
    param :avatar, Hash, :required => false do 
     param :base64image, String, "Base 64 image file" 
    end 
    param :is_public, [true, false], "is the event public" 
    param :latitude, Numeric, "latitude of the event" 
    param :longitude, Numeric, "longitude of the event" 
    #param :invite, Array, of: Integer, :desc => "List of friend's id to invite" 
end 
formats ['json'] 
example "URL => 
    :POST, BaseUrl/events 
    {event: { 
    event_status_id: id of the status, 
    name: name of the event, 
    description: description of the event, 
    target_date: date of the event, 
    avatar: photo file, 
    is_public: is the event public, 
    latitude: latitude of the event, 
    longitude: longitude of the event 
}} 
return => 
{ 
    { 
     \"id\": 1, 
     \"user_id\": 1, 
     \"event_status_id\": 1, 
     \"name\": \"El gran evento\", 
     \"description\": \"Blah blah blah blah jiberish blah\", 
     \"target_date\": \"2015-11-02T00:00:00.000Z\", 
     \"avatar\": { 
     \"url\": \"/uploads/event/avatar/1/image20151022-11210-129g2wg.png\", 
     \"thumb\": { 
      \"url\": \"/uploads/event/avatar/1/thumb_image20151022-11210-129g2wg.png\" 
     } 
     }, 
     \"is_public\": true, 
     \"latitude\": null, 
     \"longitude\": null, 
     user:[{ 
      id: user's id, 
      first_name: user' first name, 
      last_name: User's last name, 
      handle: User's handle}] 
    } 
}" 

error :code => 401, :desc => "Unauthorized" 
error :code => 422, :desc => "Unprocessable Entity", :meta => {:errors => "event.errors"} 
def create 
    default = { "event_status_id" => 1, "user_id" => current_user.id } 
    if(params[:event][:avatar]) 
     if(params[:event][:avatar][:base64image]) 
      avatar = open_image(params[:event][:avatar][:base64image]) 
     end 
    end 
    #avatar = open_image(params[:event][:avatar][:base64image]) if params[:event][:avatar][:base64image] 
    friendIds = params[:event][:invite] 
    params = default.merge(event_params) 
    event = current_user.events.create(params) #Line 177 
    #eventParticipant=Participant.new(user_id: current_user.id, event_id: event.id, participant_role_id: Rails.application.config.PARTICIPANT_ROLE_ADMIN) 
    #event.avatar = avatar if avatar 
    if event.save #&& eventParticipant.save 
    # if(friendIds) 
    #  for aux in friendIds 
    #   if(Friendship.isFriend(current_user.id,aux)) 
    #    eventParticipant=Participant.new(user_id: aux, event_id: event.id, participant_role_id: Rails.application.config.PARTICIPANT_ROLE_NON_PAYER) 
    #    eventParticipant.save 
    #   end 
    #  end 
    # end 
     event = minify_event(current_user.id, event.id, false) 
     render json: event, status: 201 
    else 
     render json: { errors: event.errors}, status: 422 
    end 
end 

def minify_event(user_id, event_id, getAll) 
    if(getAll) 
     return Event.joins(:participants).includes(:user).where(participants:{ user_id: user_id}).page(params[:page]).as_json(include:{ user: {only: [:id, :first_name, :last_name, :handle]}},only: [:id, :event_status_id, :name, :description, :target_date, :avatar, :is_public, :latitude, :longitude]) 
    else 
     return Event.joins(:participants).includes(:user).where(participants:{ user_id: user_id}, id: event_id).as_json(include:{ user: {only: [:id, :first_name, :last_name, :handle]}},only: [:id, :event_status_id, :name, :description, :target_date, :avatar, :is_public, :latitude, :longitude]).first 
    end 
end 

def event_params 
    #params.require(:event).permit(:event_status_id, :name, :description, :targetDate, :avatar, :isPublic, :latitude, :longitude, :requestIds) 
    params.require(:event).permit(:event_status_id, :name, :avatar, :is_public, :latitude, :longitude, :requestIds, :participant_role_id) 
end 

event = current_user.events.create(params)

當我創建的軌道控制檯FactoryGirl一個事件對象，我沒有得到錯誤

event = FactoryGirl.create(:event)

#<Event id: 53, user_id: 2218, event_status_id: 198, name: "Mr. Eryn Metz", description: "Nemo rerum itaque omnis similique qui iusto et fug...", avatar: nil, latitude: #<BigDecimal:7ff269862550,'0.4769934313E2',18(36)>, created_at: "2015-11-10 16:02:23", updated_at: "2015-11-10 16:02:23", target_date: nil, is_public: false, longitude: #<BigDecimal:7ff2698620c8,'-0.770898682E2',18(36)>> 

我將不勝感激幫助

Answer 1

檢查您已經創建了一個合適的參與者或有一個工作參與者工廠。錯誤是:participant_role can't be blank。驗證是唯一的地方（我們可以看到）在參與者模型上。所以我不會考慮事件本身的創造。我會查看是否/何時必須有與會者創建的參與者以及該參與者失敗的原因。希望這可以幫助！