1 files changed, 41 insertions, 36 deletions
diff --git a/redmine/app/models/issue.rb b/redmine/app/models/issue.rb
index dc5b3fd84..7b48182c7 100644
--- a/redmine/app/models/issue.rb
+++ b/redmine/app/models/issue.rb
@@ -17,43 +17,48 @@
 
 class Issue < ActiveRecord::Base
 
-	belongs_to :project
-	belongs_to :tracker
-	belongs_to :status, :class_name => 'IssueStatus', :foreign_key => 'status_id'
-	belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
-	belongs_to :assigned_to, :class_name => 'User', :foreign_key => 'assigned_to_id'
-	belongs_to :fixed_version, :class_name => 'Version', :foreign_key => 'fixed_version_id'
-	belongs_to :priority, :class_name => 'Enumeration', :foreign_key => 'priority_id'
-	belongs_to :category, :class_name => 'IssueCategory', :foreign_key => 'category_id'
-	
-	has_many :histories, :class_name => 'IssueHistory', :dependent => true, :order => "issue_histories.created_on DESC", :include => :status
-	has_many :attachments, :as => :container, :dependent => true
-	
-	has_many :custom_values, :dependent => true, :as => :customized
-	has_many :custom_fields, :through => :custom_values
-	
+  belongs_to :project
+  belongs_to :tracker
+  belongs_to :status, :class_name => 'IssueStatus', :foreign_key => 'status_id'
+  belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
+  belongs_to :assigned_to, :class_name => 'User', :foreign_key => 'assigned_to_id'
+  belongs_to :fixed_version, :class_name => 'Version', :foreign_key => 'fixed_version_id'
+  belongs_to :priority, :class_name => 'Enumeration', :foreign_key => 'priority_id'
+  belongs_to :category, :class_name => 'IssueCategory', :foreign_key => 'category_id'
+
+  has_many :histories, :class_name => 'IssueHistory', :dependent => true, :order => "issue_histories.created_on DESC", :include => :status
+  has_many :attachments, :as => :container, :dependent => true
+
+  has_many :custom_values, :dependent => true, :as => :customized
+  has_many :custom_fields, :through => :custom_values
+
   validates_presence_of :subject, :description, :priority, :tracker, :author
   validates_associated :custom_values, :on => :update
-	
-	# set default status for new issues
-	def before_validation
-		self.status = IssueStatus.default if new_record?
-	end
-	
-	def before_create
-	 build_history
-	end
-	
-	def long_id
-		"%05d" % self.id
-	end
-	
+
+  # set default status for new issues
+  def before_validation
+    self.status = IssueStatus.default if new_record?
+  end
+
+  def validate
+    if self.due_date.nil? && !@attributes['due_date'].empty?
+      errors.add :due_date, :activerecord_error_not_a_date
+    end
+  end
+
+  def before_create
+    build_history
+  end
+
+  def long_id
+    "%05d" % self.id
+  end
+
 private
-	# Creates an history for the issue
-	def build_history
-		@history = self.histories.build
-		@history.status = self.status
-		@history.author = self.author
-	end
-
+  # Creates an history for the issue
+  def build_history
+    @history = self.histories.build
+    @history.status = self.status
+    @history.author = self.author
+  end
 end