Created
August 23, 2011 15:23
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Adding a property to a model
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| class MyUserModel(User): | |
| @property | |
| def room(self): | |
| # Don't run the query twice | |
| if not hasattr(self, '_room'): | |
| try: | |
| self._room = self.lease_set.select_related('room').order_by('-date')[0].room | |
| except Lease.DoesNotExist: | |
| self._room = None | |
| return self._room |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| class MyUserModel(User): | |
| @property | |
| def room(self): | |
| # Don't run the query twice | |
| if not hasattr(self, '_room'): | |
| try: | |
| self._room = self.lease_set.select_related('room').order_by('-date')[0].room | |
| except Lease.DoesNotExist: | |
| self._room = None | |
| return self._room |
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