CODEWITHSUNDEEP
ruby-on-railsdatabaseparametersassociationssimple-form
Felipe Quintana
Felipe Quintana

Reputation: 7

simple_form association not saving with attributes

I have three models, car, service and appointment.

class Car < ApplicationRecord
  belongs_to :user
  has_many :appointments, dependent: :destroy
end

class Service < ApplicationRecord
  has_many :appointments
end

class Appointment < ApplicationRecord
  belongs_to :car
  belongs_to :service
  accepts_nested_attributes_for :service
end

And Im using simple form to create an appointment to a car referencing a service

<%= simple_form_for [@car, @appointment] do |a| %>
<%= a.input :date %>
<%= a.input :description, label: "descripción" %>
<%= a.input :location, label: "ubicación" %>
<%= a.association :service, as: :check_boxes, include_blank: false %>

<%= a.button :submit  %>
  <% end %>`

My appointment saves with the correct service, but the attributes of the service don´t

@car = Car.find(params[:car_id])
@appointment = Appointment.new(appointment_params)
@service = Service.new(params[ :service])

@appointment.service = @service
@appointment.car = @car

def appointment_params
  params.require(:appointment).permit(:date, :description, :location, :status, :requests, service_attributes:[:request, :price, :provider])
end

I think the problem is with the params, but im not sure and I don´t know if im saving them correctly, service_attributes:[:request, :price, :provider].

Thanks in advance! (im using rails 5)

Upvotes: 0

Views: 67

Answers (1)

jvillian
jvillian

Reputation: 20253

I think you may be going about this incorrectly. Since a Service has_many :appointments and an Appointment has_many :services (based on the comments), you have a m:m association and you might consider using has_many :through. Something like:

class Car < ApplicationRecord
  belongs_to :user
  has_many :appointments, dependent: :destroy
end

class AppointmentService < ApplicationRecord
  belongs_to :service
  belongs_to :appointment
end

class Service < ApplicationRecord
  has_many :appointment_services
  has_many :appointments, through: :appointment_services
end

class Appointment < ApplicationRecord
  belongs_to :car
  has_many :appointment_services
  has_many :services, through: :appointment_services
end

Now, you should be able to do something with that bit of your params:

"service_id"=>["", "2", "3"]

To create appointment_services (seems like you'll want to discard that ""). You'll need to fiddle with it a bit and may be able to use accepts_nested_attributes_for :appointment_service on Appointment.

Upvotes: 1

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