13 lines
785 B
Python
13 lines
785 B
Python
|
from django.db.backends import BaseDatabaseValidation
|
||
|
|
|
||
|
|
class DatabaseValidation(BaseDatabaseValidation):
|
||
|
|
def validate_field(self, errors, opts, f):
|
||
|
|
"Prior to MySQL 5.0.3, character fields could not exceed 255 characters"
|
||
|
|
from django.db import models
|
||
|
|
from django.db import connection
|
||
|
|
db_version = connection.get_server_version()
|
||
|
|
if db_version < (5, 0, 3) and isinstance(f, (models.CharField, models.CommaSeparatedIntegerField, models.SlugField)) and f.max_length > 255:
|
||
|
|
errors.add(opts,
|
||
|
|
'"%s": %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 %s).' %
|
||
|
|
(f.name, f.__class__.__name__, '.'.join([str(n) for n in db_version[:3]])))
|
||
|
|
|