Created
August 14, 2012 13:21
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Django UUID field
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| from django.db import models | |
| import uuid | |
| class UUIDField(models.CharField) : | |
| def __init__(self, *args, **kwargs): | |
| kwargs['max_length'] = kwargs.get('max_length', 64 ) | |
| kwargs['blank'] = True | |
| models.CharField.__init__(self, *args, **kwargs) | |
| def pre_save(self, model_instance, add): | |
| if add : | |
| value = str(uuid.uuid4()) | |
| setattr(model_instance, self.attname, value) | |
| return value | |
| else: | |
| return super(models.CharField, self).pre_save(model_instance, add) | |
| class Example(models.Model) : | |
| uuid = UUIDField(primary_key=True, editable=False) | |
| name = models.CharField(max_length=32) | |
| value = models.CharField(max_length=255, blank=True) |
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