Implement Event Ratings

app/models/votable_field.rb

@@ -0,0 +1,20 @@
+class VotableField < ActiveRecord::Base
+  belongs_to :conference
+  validates :title, :votable_type, :stars, presence: true
+  validates :title, uniqueness: {scope: :votable_type, message: 'already exsists for the selected votable type'}
+
+  VALID_VOTABLE_TYPES = %w(Event).freeze
+  # ratyrate does not allow criterias to have spaces in them
+  validate :no_spaces_in_title
+  validate :correct_votable_type
+
+  private
+
+  def no_spaces_in_title
+    errors.add(:title, 'should not have spaces') unless title.match(/\s/).nil?
+  end
+
+  def correct_votable_type
+    errors.add(:votable_type, "should be one of the following: #{VALID_VOTABLE_TYPES.join(', ')}") unless VALID_VOTABLE_TYPES.include? votable_type
+  end
+end