add reviwer field in admin's form

app/models/seminar_main.rb

@@ -35,13 +35,14 @@ class SeminarMain
   has_many :seminar_item_contents, :autosave => true, :dependent => :destroy
   has_many :seminar_signups, :autosave => true, :dependent => :destroy
   has_many :seminar_signup_fields, :autosave => true, :dependent => :destroy
-  
+  has_many :seminar_reviews, :autosave => true, :dependent => :destroy
+
   accepts_nested_attributes_for :seminar_links, :allow_destroy => true
   accepts_nested_attributes_for :seminar_files, :allow_destroy => true
   accepts_nested_attributes_for :seminar_item_contents, :allow_destroy => true
   accepts_nested_attributes_for :seminar_signups, :allow_destroy => true
   accepts_nested_attributes_for :seminar_signup_fields, :allow_destroy => true
-
+  accepts_nested_attributes_for :seminar_reviews, :allow_destroy => true
 
 
   def self.time_range(date1 = null, date2 = null)

app/models/seminar_review.rb

@@ -0,0 +1,12 @@
+# encoding: utf-8
+require "orbit_form_helper"
+class SeminarReview
+
+  include Mongoid::Document
+  include Mongoid::Timestamps
+
+  field :review_start_date, :type => Date, :default => Time.now
+  field :review_end_date, :type => Date, :default => Time.now
+  field :reviewer_id
+  belongs_to :seminar_main
+end