Milestone basic scaffold

app/models/milestone.rb

@@ -0,0 +1,29 @@
+class Milestone < ActiveRecord::Base
+  belongs_to :project
+  has_many :issues
+
+  validates_presence_of :project_id
+  validates_presence_of :title
+
+  def self.active
+    where("due_date > ? ", Date.today)
+  end
+
+  def percent_complete
+    @percent_complete ||= begin
+                            total_i = self.issues.count
+                            closed_i = self.issues.closed.count
+                            if total_i > 0
+                              (closed_i * 100) / total_i
+                            else
+                              100
+                            end
+                          rescue => ex
+                            0
+                          end
+  end
+
+  def expires_at
+    "expires at #{due_date.stamp("Aug 21, 2011")}" if due_date
+  end
+end