1 files changed, 53 insertions, 10 deletions

diff --git a/app/models/issue.rb b/app/models/issue.rb
index 10a5d9d2a24..a88dbb3e065 100644
--- a/app/models/issue.rb
+++ b/app/models/issue.rb
@@ -3,6 +3,7 @@ require 'carrierwave/orm/activerecord'
 class Issue < ActiveRecord::Base
   include InternalId
   include Issuable
+  include Noteable
   include Referable
   include Sortable
   include Spammable
@@ -23,12 +24,17 @@ class Issue < ActiveRecord::Base
 
   has_many :merge_requests_closing_issues, class_name: 'MergeRequestsClosingIssues', dependent: :delete_all
 
+  has_many :issue_assignees
+  has_many :assignees, class_name: "User", through: :issue_assignees
+
   validates :project, presence: true
 
-  scope :cared, ->(user) { where(assignee_id: user) }
-  scope :open_for, ->(user) { opened.assigned_to(user) }
   scope :in_projects, ->(project_ids) { where(project_id: project_ids) }
 
+  scope :assigned, -> { where('EXISTS (SELECT TRUE FROM issue_assignees WHERE issue_id = issues.id)') }
+  scope :unassigned, -> { where('NOT EXISTS (SELECT TRUE FROM issue_assignees WHERE issue_id = issues.id)') }
+  scope :assigned_to, ->(u) { where('EXISTS (SELECT TRUE FROM issue_assignees WHERE user_id = ? AND issue_id = issues.id)', u.id)}
+
   scope :without_due_date, -> { where(due_date: nil) }
   scope :due_before, ->(date) { where('issues.due_date < ?', date) }
   scope :due_between, ->(from_date, to_date) { where('issues.due_date >= ?', from_date).where('issues.due_date <= ?', to_date) }
@@ -38,11 +44,15 @@ class Issue < ActiveRecord::Base
 
   scope :created_after, -> (datetime) { where("created_at >= ?", datetime) }
 
-  scope :include_associations, -> { includes(:assignee, :labels, project: :namespace) }
+  scope :include_associations, -> { includes(:labels, project: :namespace) }
+
+  after_save :expire_etag_cache
 
   attr_spammable :title, spam_title: true
   attr_spammable :description, spam_description: true
 
+  participant :assignees
+
   state_machine :state, initial: :opened do
     event :close do
       transition [:reopened, :opened] => :closed
@@ -59,17 +69,17 @@ class Issue < ActiveRecord::Base
     before_transition any => :closed do |issue|
       issue.closed_at = Time.zone.now
     end
-
-    before_transition closed: any do |issue|
-      issue.closed_at = nil
-    end
   end
 
   def hook_attrs
+    assignee_ids = self.assignee_ids
+
     attrs = {
       total_time_spent: total_time_spent,
       human_total_time_spent: human_total_time_spent,
-      human_time_estimate: human_time_estimate
+      human_time_estimate: human_time_estimate,
+      assignee_ids: assignee_ids,
+      assignee_id: assignee_ids.first # This key is deprecated
     }
 
     attributes.merge!(attrs)
@@ -117,6 +127,22 @@ class Issue < ActiveRecord::Base
               "id DESC")
   end
 
+  # Returns a Hash of attributes to be used for Twitter card metadata
+  def card_attributes
+    {
+      'Author'   => author.try(:name),
+      'Assignee' => assignee_list
+    }
+  end
+
+  def assignee_or_author?(user)
+    author_id == user.id || assignees.exists?(user.id)
+  end
+
+  def assignee_list
+    assignees.map(&:name).to_sentence
+  end
+
   # `from` argument can be a Namespace or Project.
   def to_reference(from = nil, full: false)
     reference = "#{self.class.reference_prefix}#{iid}"
@@ -146,6 +172,14 @@ class Issue < ActiveRecord::Base
     branches_with_iid - branches_with_merge_request
   end
 
+  # Returns boolean if a related branch exists for the current issue
+  # ignores merge requests branchs
+  def has_related_branch?
+    project.repository.branch_names.any? do |branch|
+      /\A#{iid}-(?!\d+-stable)/i =~ branch
+    end
+  end
+
   # To allow polymorphism with MergeRequest.
   def source_project
     project
@@ -202,7 +236,7 @@ class Issue < ActiveRecord::Base
   # Returns `true` if the current issue can be viewed by either a logged in User
   # or an anonymous user.
   def visible_to_user?(user = nil)
-    return false unless project.feature_available?(:issues, user)
+    return false unless project && project.feature_available?(:issues, user)
 
     user ? readable_by?(user) : publicly_visible?
   end
@@ -243,7 +277,7 @@ class Issue < ActiveRecord::Base
       true
     elsif confidential?
       author == user ||
-        assignee == user ||
+        assignees.include?(user) ||
         project.team.member?(user, Gitlab::Access::REPORTER)
     else
       project.public? ||
@@ -256,4 +290,13 @@ class Issue < ActiveRecord::Base
   def publicly_visible?
     project.public? && !confidential?
   end
+
+  def expire_etag_cache
+    key = Gitlab::Routing.url_helpers.realtime_changes_namespace_project_issue_path(
+      project.namespace,
+      project,
+      self
+    )
+    Gitlab::EtagCaching::Store.new.touch(key)
+  end
 end