Wrapper around mongoengine's Document class to avoid deleting things.

famigodocument.py

from datetime import datetime
from mongoengine import *
from mongoengine.queryset import queryset_manager
from re import sub

class FamigoDocument(Document):
    _active = BooleanField(default=True, required=True)

    @queryset_manager
    def active(cls, queryset):
        return queryset.filter(_active=True)

    @queryset_manager
    def inactive(cls, queryset):
        return queryset.filter(_active=False)

    def activate(self, *args, **kwargs):
        if not self._active:
            for field, value in self._fields.items():
                if not value.unique or not isinstance(value, StringField):
                    continue
                self[field] = sub(r' \(Deactivated [0-9]+\)', '',
                    self[field])
        self._active = True
        self.save()

    def deactivate(self, *args, **kwargs):
        if self._active:
            for field, value in self._fields.items():
                if not value.unique or not isinstance(value, StringField):
                    continue
                self[field] = '{0} (Deactivated {1})'.format(self[field],
                    datetime.now().strftime('%Y%m%d%H%M%S%f'))
        self._active = False
        self.save()

class Foo(FamigoDocument):
    meta = {'collection': 'foo'}
    string = StringField(unique=True)

connect('tmp4')

Foo.drop_collection()
foo = Foo(string='asdf')
foo.save()
print '>', foo.string, '<'
foo.deactivate()
print '>', foo.string, '<'
foo.activate()
print '>', foo.string, '<'