From 30175bf85e4d064abcae5ec971bdb9782e7543ac Mon Sep 17 00:00:00 2001
From: Jean-Philippe Lang <jp_lang@yahoo.fr>
Date: Mon, 15 Dec 2014 19:22:13 +0000
Subject: [PATCH] Restore accent insensitive search with mysql (#18537).

git-svn-id: http://svn.redmine.org/redmine/trunk@13767 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 .../lib/acts_as_searchable.rb                 |  2 --
 test/test_helper.rb                           |  4 +++
 test/unit/search_test.rb                      | 31 ++++++++++++-------
 3 files changed, 24 insertions(+), 13 deletions(-)

diff --git a/lib/plugins/acts_as_searchable/lib/acts_as_searchable.rb b/lib/plugins/acts_as_searchable/lib/acts_as_searchable.rb
index ad1ef122c..35ee265de 100644
--- a/lib/plugins/acts_as_searchable/lib/acts_as_searchable.rb
+++ b/lib/plugins/acts_as_searchable/lib/acts_as_searchable.rb
@@ -121,8 +121,6 @@ module Redmine
             case connection.adapter_name
             when /postgresql/i
               "#{column} ILIKE #{value}"
-            when /mysql/i
-              "LOWER(#{column}) COLLATE utf8_bin LIKE LOWER(#{value})"
             else
               "#{column} LIKE #{value}"
             end
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 4677bd7fe..2416609a6 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -167,6 +167,10 @@ class ActiveSupport::TestCase
     ActiveRecord::Base.connection.adapter_name =~ /sqlite/i
   end
 
+  def mysql?
+    ActiveRecord::Base.connection.adapter_name =~ /mysql/i
+  end
+
   def assert_save(object)
     saved = object.save
     message = "#{object.class} could not be saved"
diff --git a/test/unit/search_test.rb b/test/unit/search_test.rb
index 7959851bc..45eb2bd33 100644
--- a/test/unit/search_test.rb
+++ b/test/unit/search_test.rb
@@ -149,17 +149,26 @@ class SearchTest < ActiveSupport::TestCase
     assert_include issue, r
   end
 
-  def test_search_should_not_use_ruby_downcase
-    skip "SQLite does not support case insensitive match for non-ASCII characters" if sqlite?
-    issue1 = Issue.generate!(:subject => "Special chars: ÖÖ")
-    issue2 = Issue.generate!(:subject => "Special chars: Öö")
-    Issue.generate!(:subject => "Special chars: oo")
-    Issue.generate!(:subject => "Special chars: OO")
-
-    r = Issue.search_results('ÖÖ')
-    assert_include issue1, r
-    assert_include issue2, r
-    assert_equal 2, r.size
+  def test_search_should_be_case_insensitive_with_accented_characters
+    unless sqlite?
+      issue1 = Issue.generate!(:subject => "Special chars: ÖÖ")
+      issue2 = Issue.generate!(:subject => "Special chars: Öö")
+  
+      r = Issue.search_results('ÖÖ')
+      assert_include issue1, r
+      assert_include issue2, r
+    end
+  end
+
+  def test_search_should_be_case_and_accent_insensitive_with_mysql
+    if mysql?
+      issue1 = Issue.generate!(:subject => "OO")
+      issue2 = Issue.generate!(:subject => "oo")
+  
+      r = Issue.search_results('ÖÖ')
+      assert_include issue1, r
+      assert_include issue2, r
+    end
   end
 
   private
-- 
2.39.5