_form.html.erb

<h1><%= @doctor.name %></h1>

<%= simple_form_for([@doctor, @appointment], :html => { :multipart => true, :class => 'form-horizontal' }) do |f| %>

  	<%= f.error_notification %>
		<%= f.input :full_name %>
		<%= f.input :email %>
		<%= f.input :adate, as: :date_picker %>
    <%= f.input :atime, as: :time_picker %>
    <%= f.input :personal_id %>
    <%= f.input :insurance_id %>
    <%= f.input :prescription %>


    <div class="controls"><%= f.button :submit, class: "btn btn-primary" %></div>
<% end %>

appointment.rb

class Appointment < ActiveRecord::Base
  attr_accessible :adate, :atime, :doctor_id, :personal_id, :insurance_id, :prescription, :full_name, :email  

  validates :full_name, :presence => true
  validates :email, :presence => true,
                    :format => {
                    :with    => /^([^\s]+)((?:[-a-z0-9]\.)[a-z]{2,})$/i,
                    :message => I18n.t('activerecord.errors.models.appointment.attributes.email.email_format')}

                    

  validates :adate, :presence => true     
  validates :atime, :presence => true     
  validates :adate, :uniqueness => { :scope => :atime, :message => "This date is not available" }

  belongs_to :doctor  

  validates_date :adate, :after => lambda { Date.current }  

  mount_uploader :personal_id, FileUploader
  mount_uploader :insurance_id, FileUploader
  mount_uploader :prescription, FileUploader
  
  validate :adate, :doctor_availability

def doctor_availability
    if !adate.sunday? && !schedule.sun?
        errors.add(:adate, "The doctor is not available on this date")
  end
  
end

error.rb

 NameError in AppointmentsController#create

undefined local variable or method `schedule' for #<Appointment:0x007fa0dd3d0ab0>


app/models/appointment.rb:29:in `doctor_availability'
app/controllers/appointments_controller.rb:42:in `create'

schedule.rb

class Schedule < ActiveRecord::Base
  attr_accessible :doctor_id, :sun, :mon, :tue, :wed, :thu, :fri, :sat  
  

  belongs_to :doctor
  
    
end