Project issue tracker functions refactored

app/helpers/issues_helper.rb

@@ -42,7 +42,7 @@ module IssuesHelper
   end
 
   def url_for_issue(issue_id)
-    if @project.issues_tracker ==  Project.issues_tracker.default_value
+    if @project.used_default_issues_tracker?
       url = project_issue_url project_id: @project, id: issue_id
     else
       url = Settings[:issues_tracker][@project.issues_tracker]["issues_url"]
@@ -51,20 +51,10 @@ module IssuesHelper
   end
 
   def title_for_issue(issue_id)
-    if issue = @project.issues.where(id: issue_id).first
+    if @project.used_default_issues_tracker? && issue = @project.issues.where(id: issue_id).first
       issue.title
     else
       ""
     end
   end
-
-  def issue_exists?(issue_id)
-    return false if @project.nil?
-
-    if @project.issues_tracker == Project.issues_tracker.default_value
-      @project.issues.where(id: issue_id).first.present?
-    else
-      true
-    end
-  end
 end

app/models/project.rb

@@ -205,6 +205,18 @@ class Project < ActiveRecord::Base
     issues.tag_counts_on(:labels)
   end
 
+  def issue_exists?(issue_id)
+    if used_default_issues_tracker?
+      self.issues.where(id: issue_id).first.present?
+    else
+      true
+    end
+  end
+
+  def used_default_issues_tracker?
+    self.issues_tracker == Project.issues_tracker.default_value
+  end
+
   def services
     [gitlab_ci_service].compact
   end

lib/gitlab/markdown.rb

@@ -163,7 +163,7 @@ module Gitlab
     end
 
     def reference_issue(identifier)
-      if issue_exists? identifier
+      if @project.issue_exists? identifier
         url = url_for_issue(identifier)
         title = title_for_issue(identifier)
 

spec/factories.rb

@@ -29,6 +29,10 @@ FactoryGirl.define do
     creator
   end
 
+  factory :redmine_project, parent: :project do
+    issues_tracker { "redmine" }
+  end
+
   factory :group do
     sequence(:name) { |n| "group#{n}" }
     path { name.downcase.gsub(/\s/, '_') }

spec/lib/issues_tracker_spec.rb

@@ -1,16 +0,0 @@
-require 'spec_helper'
-
-describe IssuesTracker do
-  let(:project) { double('project') }
-
-  before do
-    @project = project
-    project.stub(repository: stub(ref_names: ['master', 'foo/bar/baz', 'v1.0.0', 'v2.0.0']))
-    project.stub(path_with_namespace: 'gitlab/gitlab-ci')
-  end
-  
-  it 'returns url for issue' do
- ololo
-  end
-end
- 

spec/models/project_spec.rb

@@ -190,4 +190,37 @@ describe Project do
       Project.new(path: "empty").repository.should be_nil
     end
   end
+
+  describe :issue_exists? do
+    let(:project) { create(:project) }
+    let(:existed_issue) { create(:issue, project: project) }
+    let(:not_existed_issue) { create(:issue) }
+    let(:ext_project) { create(:redmine_project) }
+
+    it "should be true or if used internal tracker and issue exists" do
+      project.issue_exists?(existed_issue.id).should be_true
+    end
+
+    it "should be false or if used internal tracker and issue not exists" do
+      project.issue_exists?(not_existed_issue.id).should be_false
+    end
+
+    it "should always be true if used other tracker" do
+      ext_project.issue_exists?(rand(100)).should be_true
+    end
+  end
+
+  describe :used_default_issues_tracker? do
+    let(:project) { create(:project) }
+    let(:ext_project) { create(:redmine_project) }
+
+    it "should be true if used internal tracker" do
+      project.used_default_issues_tracker?.should be_true
+    end
+
+    it "should be false if used other tracker" do
+      ext_project.used_default_issues_tracker?.should be_false
+    end
+  end
+
 end