django-eav2/validators.py
2010-09-23 19:40:32 +03:00

42 lines
1.3 KiB
Python

from datetime import datetime, date
from django.db import models
from django.utils.translation import ugettext_lazy as _
from django.core.exceptions import ValidationError
def validate_text(value):
if not (type(value) == unicode or type(value) == str):
raise ValidationError(_(u"Must be str or unicode"))
def validate_float(value):
try:
float(value)
except ValueError:
raise ValidationError(_(u"Must be a float"))
def validate_int(value):
try:
int(value)
except ValueError:
raise ValidationError(_(u"Must be an integer"))
def validate_date(value):
if not (isinstance(value, datetime) or isinstance(value, date)):
raise ValidationError(_(u"Must be a date or datetime"))
def validate_bool(value):
if not type(value) == bool:
raise ValidationError(_(u"Must be a boolean"))
def validate_object(value):
if not isinstance(value, models.Model):
raise ValidationError(_(u"Must be a django model object instance"))
if not value.pk:
raise ValidationError(_(u"Model has not been saved yet"))
def validate_enum(value):
from .models import EnumValue
if not isinstance(value, EnumValue):
raise ValidationError(_(u"Must be an EnumValue model object instance"))
if not value.pk:
raise ValidationError(_(u"EnumValue has not been saved yet"))