Consolidate functionality shared between Issue and MergeRequest

Any associations, validations, delegates, scopes and methods that
were exactly the same in both Issue and MergeRequest models have been
moved to a new IssueCommonality module (role) that gets included by each
class.

There was actually quite a bit of duplication, because MergeRequests are
basically just specialized Issues.

1 files changed, 5 insertions, 45 deletions

diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 642db17da80..a77081c9528 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -10,47 +10,15 @@ class MergeRequest < ActiveRecord::Base
   CAN_BE_MERGED = 2
   CANNOT_BE_MERGED = 3
 
-  belongs_to :project
-  belongs_to :author, :class_name => "User"
-  belongs_to :assignee, :class_name => "User"
-  has_many :notes, :as => :noteable, :dependent => :destroy
-
   serialize :st_commits
   serialize :st_diffs
 
-  attr_protected :author, :author_id, :project, :project_id
-  attr_accessor :author_id_of_changes,
-                :should_remove_source_branch
+  attr_accessor :should_remove_source_branch
 
-  validates_presence_of :project_id
-  validates_presence_of :author_id
   validates_presence_of :source_branch
   validates_presence_of :target_branch
   validate :validate_branches
 
-  delegate :name,
-           :email,
-           :to => :author,
-           :prefix => true
-
-  delegate :name,
-           :email,
-           :to => :assignee,
-           :allow_nil => true,
-           :prefix => true
-
-  validates :title,
-            :presence => true,
-            :length   => { :within => 0..255 }
-
-  scope :opened, where(:closed => false)
-  scope :closed, where(:closed => true)
-  scope :assigned, lambda { |u| where(:assignee_id => u.id)}
-
-  def self.search query
-    where("title like :query", :query => "%#{query}%")
-  end
-
   def self.find_all_by_branch(branch_name)
     where("source_branch like :branch or target_branch like :branch", :branch => branch_name)
   end
@@ -96,14 +64,6 @@ class MergeRequest < ActiveRecord::Base
     self.save
   end
 
-  def today?
-    Date.today == created_at.to_date
-  end
-
-  def new?
-    today? && created_at == updated_at
-  end
-
   def diffs
     st_diffs || []
   end
@@ -136,7 +96,7 @@ class MergeRequest < ActiveRecord::Base
     commits.first
   end
 
-  def merged? 
+  def merged?
     merged && merge_event
   end
 
@@ -153,7 +113,7 @@ class MergeRequest < ActiveRecord::Base
   end
 
   def probably_merged?
-    unmerged_commits.empty? && 
+    unmerged_commits.empty? &&
       commits.any? && open?
   end
 
@@ -171,8 +131,8 @@ class MergeRequest < ActiveRecord::Base
     self.update_attributes :state => CANNOT_BE_MERGED
   end
 
-  def reloaded_commits 
-    if open? && unmerged_commits.any? 
+  def reloaded_commits
+    if open? && unmerged_commits.any?
       self.st_commits = unmerged_commits
       save
     end