expertiza/expertiza

class SurveyDeployment < ApplicationRecord
  validates :start_date, presence: true
  validates :end_date, presence: true
  validate :valid_start_end_time?

  def valid_start_end_time?
    if end_date.nil? || start_date.nil?
      errors[:base] << 'The start and end time should be specified.'
      return false
    end
    unless end_date.nil? || start_date.nil? || (end_date - start_date) >= 0
      errors[:base] << 'The End Date should be after the Start Date.'
      return false
    end
    unless end_date.nil? || end_date >= Time.now
      errors[:base] << 'The End Date should be in the future.'
      return false
    end
    true
  end

  # implemented in both AssignmentSurveyDeployment and CourseSurveyDeployment models
  def parent_name; end

  # implemented in both AssignmentSurveyDeployment and CourseSurveyDeployment models
  def response_maps; end
end