ensl.org/app/models/prediction.rb

# == Schema Information
#
# Table name: predictions
#
#  id         :integer          not null, primary key
#  result     :integer
#  score1     :integer
#  score2     :integer
#  created_at :datetime
#  updated_at :datetime
#  match_id   :integer
#  user_id    :integer
#
# Indexes
#
#  index_predictions_on_match_id  (match_id)
#  index_predictions_on_user_id   (user_id)
#

class Prediction < ActiveRecord::Base
  include Extra

  #attr_protected :id, :created_at, :updated_at, :result

  validates_presence_of :match, :user
  validates_inclusion_of :score1, :in => 0..99, :message => "Invalid score"
  validates_inclusion_of :score2, :in => 0..99, :message => "Invalid score"
  validates_uniqueness_of :match_id, :scope => :user_id

  scope :with_contest, -> { includes({:match => :contest}) }

  belongs_to :match, :optional => true
  belongs_to :user, :optional => true

  def can_create? cuser
    cuser and match.match_time.future? and !match.score1 and !match.score2 and !cuser.predictions.exists?(:match_id => match.id)
  end

  def self.params(params, cuser)
    params.require(:prediction).permit(:result, :score1, :score2, :match_id, :user_id)
  end
end