Hello users, I cannot realize the difference between the different
ways of extending a model. Suppose we have Place and Restaurant Models
(a Restaurant is an extension of a Place). I know 3 different ways of
define the data model:
1. Multi-table inheritance:
class Place(models.Model): ...
class Restaurant(Place): ...
2. OneToOne relationship:
class Place(models.Model): ...
class Restaurant(models.Model):
place = models.OneToOneField(Place, primary_key=True)
3. ForeignKey unique:
class Place(models.Model): ...
class Restaurant(models.Model):
place = models.ForeignKey(Place, unique=True)
I can't realize the difference between them nor advantages/
disadvantages of each case. Is there a big difference? Can someone
clarify it please?
Thanks in advance.
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