[#280] Include matching issue ids in the auto_completer.

Using SQL CAST() to convert the issue ids to strings so LIKE will work
properly.

app/controllers/auto_completes_controller.rb

@@ -9,7 +9,10 @@ class AutoCompletesController < ApplicationController
       @issues << query.visible.find_by_id(q.to_i)
     end
     unless q.blank?
-      @issues += query.visible.find(:all, :conditions => ["LOWER(#{Issue.table_name}.subject) LIKE ?", "%#{q.downcase}%"], :limit => 10)
+      @issues += query.visible.find(:all,
+                                    :limit => 10,
+                                    :order => "#{Issue.table_name}.id ASC",
+                                    :conditions => ["LOWER(#{Issue.table_name}.subject) LIKE :q OR CAST(#{Issue.table_name}.id AS CHAR(13)) LIKE :q", {:q => "%#{q.downcase}%" }])
     end
     @issues.compact!
     render :layout => false

test/functional/auto_completes_controller_test.rb

@@ -16,6 +16,24 @@ class AutoCompletesControllerTest < ActionController::TestCase
     assert_not_nil assigns(:issues)
     assert assigns(:issues).include?(Issue.find(13))
   end
+
+  test 'should return issues matching a given id' do
+    @project = Project.find('subproject1')
+    @issue_21 = Issue.generate_for_project!(@project, :id => 21)
+    @issue_101 = Issue.generate_for_project!(@project, :id => 101)
+    @issue_102 = Issue.generate_for_project!(@project, :id => 102)
+    @issue_with_subject = Issue.generate_for_project!(@project, :subject => 'This has 1 in the subject')
+
+    get :issues, :project_id => @project.id, :q => '1'
+
+    assert_response :success
+    assert_not_nil assigns(:issues)
+    assert assigns(:issues).include?(Issue.find(13))
+    assert assigns(:issues).include?(@issue_21)
+    assert assigns(:issues).include?(@issue_101)
+    assert assigns(:issues).include?(@issue_102)
+    assert assigns(:issues).include?(@issue_with_subject)
+  end
   
   def test_auto_complete_with_scope_all_and_cross_project_relations
     Setting.cross_project_issue_relations = '1'