71 lines
1.9 KiB
Python
71 lines
1.9 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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openslides.utils.person.models
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Models and ModelFields for the OpenSlides person api.
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:copyright: 2011, 2012 by OpenSlides team, see AUTHORS.
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:license: GNU GPL, see LICENSE for more details.
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"""
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from django.db import models
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from .forms import PersonFormField
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from .api import get_person, generate_person_id
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class PersonField(models.fields.Field):
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__metaclass__ = models.SubfieldBase
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def __init__(self, *args, **kwargs):
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kwargs['max_length'] = 255
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super(PersonField, self).__init__(*args, **kwargs)
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def get_internal_type(self):
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return "CharField"
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def to_python(self, value):
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"""
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Convert string value to a User Object.
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"""
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if isinstance(value, PersonMixin):
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return value
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elif value is None:
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return None
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else:
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return get_person(value)
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def get_prep_value(self, value):
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"""
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Convert a person object to a string, to store it in the database.
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"""
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if value is None:
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return None
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else:
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return value.person_id
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def formfield(self, **kwargs):
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defaults = {'form_class': PersonFormField}
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defaults.update(kwargs)
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return super(PersonField, self).formfield(**defaults)
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class PersonMixin(object):
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@property
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def person_id(self):
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try:
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return generate_person_id(self.person_prefix, self.pk)
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except AttributeError:
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raise AttributeError("%s has to have a attribute 'person_prefix'"
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% self)
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def __unicode__(self):
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return 'MyPerson: %s' % self.person_id
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def prepare_database_save(self, field):
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if type(field) is PersonField:
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return self.person_id
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else:
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return super(PersonMixin, self).prepare_database_save(field)
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