When I created a Django application, I hadn’t noticed that my MySQL was defaulted to latin character set (probably by Virtualmin or CentOS’s default MySQL values). So I didn’t want to delete my current project and start again. So here are the commands to convert a database to unicode:
for the database
ALTER DATABASE djangodb CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci
on each table do
ALTER TABLE djangotablename CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci