+class Issue < ActiveRecord::Base
+ belongs_to :reportable, :polymorphic => true
+ has_many :reports
+ validates :reportable_id, :uniqueness => { :scope => [ :reportable_type ] }
+
+ # Check if more statuses are needed
+ enum status: %w( open ignored resolved )
+
+ scope :with_status, -> (issue_status) { where(:status => statuses[issue_status])}
+
+ def read_reports
+ resolved_at.present? ? reports.where("created_at < ?", resolved_at) : nil
+ end
+
+ def unread_reports
+ resolved_at.present? ? reports.where("created_at >= ?", resolved_at) : reports
+ end
+
+ include AASM
+ aasm :column => :status, :no_direct_assignment => true do
+ state :open, :initial => true
+ state :ignored
+ state :resolved
+
+ event :ignore do
+ transitions :from => :open, :to => :ignored
+ end
+
+ event :resolve do
+ transitions :from => :open, :to => :resolved
+ after do
+ self.resolved_at = Time.now.getutc
+ end
+ end
+
+ event :reopen do
+ transitions :from => :resolved, :to => :open
+ end
+
+ end
+
+end