9 lines
214 B
Python
9 lines
214 B
Python
|
from django.core.validators import ValidationError
|
||
|
|
|
||
|
|
|
||
|
|
def validate_scale(value):
|
||
|
|
try:
|
||
|
|
int(eval(value))
|
||
|
|
except ValueError:
|
||
|
|
raise ValidationError(_("%s value is not a valid scale expression"))
|