Django 1.8.x Documentationscenarios where you might want to do this: • You have legacy data that is not valid. • You’re sharding your database. If this is set to False, accessing a related object that doesn’t exist will raise scenarios where you might want to do this: • You have legacy data that is not valid. • You’re sharding your database. It is an error to pass both db_constraint and through. 6.15. Models 1057 Django0 码力 | 1685 页 | 6.01 MB | 1 年前3
Django 1.8.x Documentationsome scenarios where you might want to do this: You have legacy data that is not valid. You’re sharding your database. If this is set to False, accessing a related object that doesn’t exist will raise some scenarios where you might want to do this: You have legacy data that is not valid. You’re sharding your database. It is an error to pass both db_constraint and through. ManyToManyField.swappable0 码力 | 2454 页 | 2.85 MB | 1 年前3- Django 2.1.x Documentationscenarios where you might want to do this: • You have legacy data that is not valid. • You’re sharding your database. If this is set to False, accessing a related object that doesn’t exist will raise scenarios where you might want to do this: • You have legacy data that is not valid. • You’re sharding your database. It is an error to pass both db_constraint and through. ManyToManyField.swappable0 码力 | 1910 页 | 6.49 MB | 1 年前3
- Django 1.11.x Documentationscenarios where you might want to do this: • You have legacy data that is not valid. • You’re sharding your database. If this is set to False, accessing a related object that doesn’t exist will raise scenarios where you might want to do this: • You have legacy data that is not valid. • You’re sharding your database. It is an error to pass both db_constraint and through. ManyToManyField.swappable0 码力 | 1878 页 | 6.40 MB | 1 年前3
- Django 1.10.x Documentationscenarios where you might want to do this: • You have legacy data that is not valid. • You’re sharding your database. If this is set to False, accessing a related object that doesn’t exist will raise scenarios where you might want to do this: • You have legacy data that is not valid. • You’re sharding your database. It is an error to pass both db_constraint and through. ManyToManyField.swappable0 码力 | 1817 页 | 6.19 MB | 1 年前3
- Django 1.11.x Documentationsome scenarios where you might want to do this: You have legacy data that is not valid. You’re sharding your database. If this is set to False, accessing a related object that doesn’t exist will raise some scenarios where you might want to do this: You have legacy data that is not valid. You’re sharding your database. It is an error to pass both db_constraint and through. ManyToManyField.swappable0 码力 | 2747 页 | 2.67 MB | 1 年前3
- Django 1.10.x Documentationsome scenarios where you might want to do this: You have legacy data that is not valid. You’re sharding your database. If this is set to False, accessing a related object that doesn’t exist will raise some scenarios where you might want to do this: You have legacy data that is not valid. You’re sharding your database. It is an error to pass both db_constraint and through. ManyToManyField.swappable0 码力 | 2538 页 | 2.59 MB | 1 年前3
- Django 2.1.x Documentationsome scenarios where you might want to do this: You have legacy data that is not valid. You’re sharding your database. If this is set to False, accessing a related object that doesn’t exist will raise some scenarios where you might want to do this: You have legacy data that is not valid. You’re sharding your database. It is an error to pass both db_constraint and through. ManyToManyField.swappable0 码力 | 2790 页 | 2.71 MB | 1 年前3
- Django 2.0.x Documentationscenarios where you might want to do this: • You have legacy data that is not valid. • You’re sharding your database. If this is set to False, accessing a related object that doesn’t exist will raise scenarios where you might want to do this: • You have legacy data that is not valid. • You’re sharding your database. It is an error to pass both db_constraint and through. ManyToManyField.swappable0 码力 | 1880 页 | 6.41 MB | 1 年前3
- Django 2.2.x Documentationsome scenarios where you might want to do this: You have legacy data that is not valid. You’re sharding your database. If this is set to False, accessing a related object that doesn’t exist will raise some scenarios where you might want to do this: You have legacy data that is not valid. You’re sharding your database. It is an error to pass both db_constraint and through. ManyToManyField.swappable0 码力 | 2915 页 | 2.83 MB | 1 年前3
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