Adds a method to clear the settings cache.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@7804 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/setting.rb

   def self.check_cache
     settings_updated_on = Setting.maximum(:updated_on)
     if settings_updated_on && @cached_cleared_on <= settings_updated_on
-      @cached_settings.clear
-      @cached_cleared_on = Time.now
-      logger.info "Settings cache cleared." if logger
+      clear_cache
     end
   end
+  
+  # Clears the settings cache
+  def self.clear_cache
+    @cached_settings.clear
+    @cached_cleared_on = Time.now
+    logger.info "Settings cache cleared." if logger
+  end
 
 private
   # Returns the Setting instance for the setting named name

test/unit/setting_test.rb

     assert_equal ['issue_added', 'issue_updated', 'news_added'], Setting.notified_events
     assert_equal ['issue_added', 'issue_updated', 'news_added'], Setting.find_by_name('notified_events').value
   end
+  
+  def test_setting_should_be_reloaded_after_clear_cache
+    Setting.app_title = "My title"
+    assert_equal "My title", Setting.app_title
+    
+    s = Setting.find_by_name("app_title")
+    s.value = 'New title'
+    s.save!
+    assert_equal "My title", Setting.app_title
+    
+    Setting.clear_cache
+    assert_equal "New title", Setting.app_title
+  end
 end