Restore accent insensitive search with mysql (#18537).

git-svn-id: http://svn.redmine.org/redmine/trunk@13767 e93f8b46-1217-0410-a6f0-8f06a7374b81

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

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"

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")
+  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
 
-    r = Issue.search_results('ÖÖ')
-    assert_include issue1, r
-    assert_include issue2, r
-    assert_equal 2, r.size
+  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