Ticket #9864: version-error-msg.diff

django/db/backends/mysql/validation.py

@@ -16 +16 @@
         varchar_fields = (models.CharField, models.CommaSeparatedIntegerField,
                 models.SlugField)
         if isinstance(f, varchar_fields) and f.max_length > 255:
+            msg=None
+
+            if f.unique == True:
+                msg = '"%(name)s": %(cls)s cannot have a "max_length" greater than 255 when using "unique=True".'
             if db_version < (5, 0, 3):
                 msg = '"%(name)s": %(cls)s cannot have a "max_length" greater than 255 when you are using a version of MySQL prior to 5.0.3 (you are using %(version)s).'
-            if f.unique == True:
-                msg = '"%(name)s": %(cls)s cannot have a "max_length" greater than 255 when using "unique=True".'
-            else:
-                msg = None
 
             if msg:
                 errors.add(opts, msg % {'name': f.name, 'cls': f.__class__.__name__, 'version': '.'.join([str(n) for n in db_version[:3]])})