OpenSlides/openslides/utils/models.py

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from django.db import models
class MinMaxIntegerField(models.IntegerField):
2013-09-25 12:53:44 +02:00
"""
IntegerField with options to set a min- and a max-value.
"""
def __init__(self, min_value=None, max_value=None, *args, **kwargs):
self.min_value, self.max_value = min_value, max_value
super(MinMaxIntegerField, self).__init__(*args, **kwargs)
def formfield(self, **kwargs):
defaults = {'min_value': self.min_value, 'max_value': self.max_value}
defaults.update(kwargs)
return super(MinMaxIntegerField, self).formfield(**defaults)
class AbsoluteUrlMixin(object):
"""
Mixin that raises a ValueError if the name of an url was not found with
get_absolute_url.
The Mixin has to be placed as last OpenSlides-Mixin before the django
model class.
"""
def get_absolute_url(self, link=None):
"""
Raises a ValueError.
"""
raise ValueError('Unknown Link "%s" for model "%s"' % (link, type(self)))