ruby on rails - Parent id could not be accessed from child controller create action -

this error: couldn't find task without id

i have association:

task has_many :appointments appointment belongs_to :task 

routes:

resources :tasks    resources :appointments end 

in task show, (im using partial btw) have link create new appointment page:

<%= link_to new_appointment_path(id: task.id) %> 

in appointments controller:

def new     @task = task.find(params[:id])     @appointment = @task.appointments.new     # @appointment = appointment.new end  def create     @task = task.find(params[:id])     @appointment = @task.appointments.build(appointment_params)      if @appointment.save         redirect_to @task     else         render 'new'     end  end 

the problem line in create action:

@task = task.find(params[:id]) 

can me please?

rake output tasks#index post /tasks(.:format) tasks#create new_task /tasks/new(.:format) tasks#new edit_task /tasks/:id/edit(.:format) tasks#edit task /tasks/:id(.:format) tasks#show patch /tasks/:id(.:format) tasks#update put /tasks/:id(.:format) tasks#update delete /tasks/:id(.:format) tasks#destroy task_appointments /tasks/:task_id/appointments(.:format) appointments#index post /tasks/:task_id/appointments(.:format) appointments#create new_task_appointment /tasks/:task_id/appointments/new(.:format) appointments#new edit_task_appointment /tasks/:task_id/appointments/:id/edit(.:format appointments#edit task_appointment /tasks/:task_id/appointments/:id(.:format) appointments#show patch /tasks/:task_id/appointments/:id(.:format) appointments#update put /tasks/:task_id/appointments/:id(.:format) appointments#update delete /tasks/:task_id/appointments/:id(.:format) appointments#destroy /tasks(.:format) tasks#index post /tasks(.:format) tasks#create /tasks/new(.:format) tasks#new /tasks/:id/edit(.:format) tasks#edit /tasks/:id(.:format) tasks#show patch /tasks/:id(.:format) tasks#update put /tasks/:id(.:format) tasks#update delete /tasks/:id(.:format) tasks#destroy

routes.rb

    root 'static_pages#home'   # 'catalogue' => 'catalogue#show'   'about' => 'static_pages#about'   'signup' => 'static_pages#signup'   'registration' => 'users#new'   'login' => 'sessions#new'    post 'login' => 'sessions#create'   delete 'logout' => 'sessions#destroy'    resources :users     member       :clients, :workers     end   end   resources :catalogues    collection     match 'search' => 'catalogues#search', via: [:get, :post], as: :search   end end resources :tasks   resources :responses  end  resources :tasks   resources :appointments end  resources :responses   resources :subcomments end resources :appointments resources :subcomments resources :educations resources :offered_services resources :works resources :worker_steps resources :client_steps 

task conroller:

class taskscontroller < applicationcontroller      before_action :logged_in_user_worker, only: [:new] #worker not able acces tasks/new      def new         @task = current_user.task_posts.build         @task.appointments.build     end      def create         @task = current_user.task_posts.build(task_params)         if @task.save             flash[:success] = "task created!"             redirect_to @task         else             render 'new'         end     end      def edit          @task = task.find(params[:id])         @task.county_id = @task.county.id         @task.category_id = @task.category.id      end      def update         @task = task.find(params[:id])          if @task.update_attributes(task_params)             flash[:success] = "task updated"             redirect_to @task         else             render 'edit'         end     end      def show         @task = task.find(params[:id])         @responses = @task.responses.all         @current_appointment = @task.appointments.first          #expiry time start_at minus 2 hours         @expiry_time = @current_appointment.start_at - 2.hours         @current_time = time.zone.now + 1.hours          @responses.each |r|             if r.is_accepted == true                 @accepted_offer = r                 break             end         end      end      private     def task_params         params.require(:task).permit(:category_id, :subcategory_id, :title, :description, :pay_offer, :is_pay_per_hour, :county_id, :area_id,              appointments_attributes: [:id, :start_date, :start_time, :duration] )     end      def logged_in_user_worker         unless current_user.client?             redirect_to(root_url)         end     end  end 

it should :task_id (specifies task's id), not :id (specifies appointment's id) :

@task = task.find(params[:task_id]) 

.erb :

<%= link_to new_task_appointment_path (@task) %>  <%= simple_form_for [@task, @appointment], html: {class: 'form-horizontal'}, wrapper: :horizontal_input_group |b| %> 

routes.rb :

resources :tasks   resources :responses, :appointments, :subcomments end 

:appointments shouldn't have it's own resources.