Support error user messages [PATCH]
Currently user messages (django.contrib.auth.Message) as used by the admin, are always displayed with a success icon. But I also use ModelAdmin.message_user() to log failures or warnings. So I think we should have a way to flag user messages and show them different in the admin. I have written a patch, that adds a new column to the Message model indicating the type of the message (INFO or ERROR). The default is INFO, because of info message are rendered the same way as all messages are rendered at the moment. So this patch does not break any existing code. But the ModelAdmin.message_user() method got another optional argument, you can use to specify INFO or ERROR.