Ticket #9682: django-force-collation-for-ci.diff

db/backends/mysql/base.py

@@ -199 +199 @@
         second = '%s-12-31 23:59:59.99'
         return [first % value, second % value]
 
+_icollate = hasattr(settings, "MYSQL_FORCE_COLLATION_FOR_CI") and ("COLLATE %s " % settings.MYSQL_FORCE_COLLATION_FOR_CI) or ""
+
 class DatabaseWrapper(BaseDatabaseWrapper):
 
     operators = {
         'exact': '= %s',
-        'iexact': 'LIKE %s',
+        'iexact': _icollate + 'LIKE %s',
         'contains': 'LIKE BINARY %s',
-        'icontains': 'LIKE %s',
+        'icontains': _icollate + 'LIKE %s',
         'regex': 'REGEXP BINARY %s',
-        'iregex': 'REGEXP %s',
+        'iregex': _icollate + 'REGEXP %s',
         'gt': '> %s',
         'gte': '>= %s',
         'lt': '< %s',
         'lte': '<= %s',
         'startswith': 'LIKE BINARY %s',
         'endswith': 'LIKE BINARY %s',
-        'istartswith': 'LIKE %s',
-        'iendswith': 'LIKE %s',
+        'istartswith': _icollate + 'LIKE %s',
+        'iendswith': _icollate + 'LIKE %s',
     }
 
     def __init__(self, **kwargs):