Mixing
How can I add an additional unique_together constraint to Django Guardian object level permissions?
Using the example from the docs, let's assume I have a Task model:
class Task(models.Model):
summary = models.CharField(max_length=32)
content = models.TextField()
reported_by = models.ForeignKey(User, on_delete=models.CASCADE)
created_at = models.DateTimeField(auto_now_add=True)
class Meta:
permissions = (
('view_task', 'View task'),
)
Let's say I have many users on my app, and I want to make sure of the following at the database level:
- No user has a duplicate task, i.e., a user can only have one task called "Sweep the floor."
- Users do not share tasks. For instance, if two users have a task "Sweep the floor.", there should be two tasks with the
summary"Sweep the floor." on the backend, one for each of the two users - I cannot add a
userfield on theTaskmodel - I have to assign ownership ofTaskobjects via permissions
Out of the box, the django_guardian UserObjectPermission has this unique_together constraint:
unique_together = ['user', 'permission', 'object_pk']
I think what I am looking for is a unique_together constraint that is more like this pseudo-code:
unique_together = ['user', 'permission', 'object_pk', 'task__summary']
Or, is there another way to enforce this type of uniqueness at the database level using Django Guardian permissions?
django django-guardian
asked Jan 2 at 19:32
YPCrumbleYPCrumble
10.1k965119
add a comment |
Using the example from the docs, let's assume I have a Task model:
class Task(models.Model):
summary = models.CharField(max_length=32)
content = models.TextField()
reported_by = models.ForeignKey(User, on_delete=models.CASCADE)
created_at = models.DateTimeField(auto_now_add=True)
class Meta:
permissions = (
('view_task', 'View task'),
)
Let's say I have many users on my app, and I want to make sure of the following at the database level:
- No user has a duplicate task, i.e., a user can only have one task called "Sweep the floor."
- Users do not share tasks. For instance, if two users have a task "Sweep the floor.", there should be two tasks with the
summary"Sweep the floor." on the backend, one for each of the two users - I cannot add a
userfield on theTaskmodel - I have to assign ownership ofTaskobjects via permissions
Out of the box, the django_guardian UserObjectPermission has this unique_together constraint:
unique_together = ['user', 'permission', 'object_pk']
I think what I am looking for is a unique_together constraint that is more like this pseudo-code:
unique_together = ['user', 'permission', 'object_pk', 'task__summary']
Or, is there another way to enforce this type of uniqueness at the database level using Django Guardian permissions?
django django-guardian
asked Jan 2 at 19:32
YPCrumbleYPCrumble
10.1k965119
add a comment |
Using the example from the docs, let's assume I have a Task model:
class Task(models.Model):
summary = models.CharField(max_length=32)
content = models.TextField()
reported_by = models.ForeignKey(User, on_delete=models.CASCADE)
created_at = models.DateTimeField(auto_now_add=True)
class Meta:
permissions = (
('view_task', 'View task'),
)
Let's say I have many users on my app, and I want to make sure of the following at the database level:
- No user has a duplicate task, i.e., a user can only have one task called "Sweep the floor."
- Users do not share tasks. For instance, if two users have a task "Sweep the floor.", there should be two tasks with the
summary"Sweep the floor." on the backend, one for each of the two users - I cannot add a
userfield on theTaskmodel - I have to assign ownership ofTaskobjects via permissions
Out of the box, the django_guardian UserObjectPermission has this unique_together constraint:
unique_together = ['user', 'permission', 'object_pk']
I think what I am looking for is a unique_together constraint that is more like this pseudo-code:
unique_together = ['user', 'permission', 'object_pk', 'task__summary']
Or, is there another way to enforce this type of uniqueness at the database level using Django Guardian permissions?
django django-guardian
asked Jan 2 at 19:32
YPCrumbleYPCrumble
10.1k965119
Using the example from the docs, let's assume I have a Task model:
class Task(models.Model):
summary = models.CharField(max_length=32)
content = models.TextField()
reported_by = models.ForeignKey(User, on_delete=models.CASCADE)
created_at = models.DateTimeField(auto_now_add=True)
class Meta:
permissions = (
('view_task', 'View task'),
)
Let's say I have many users on my app, and I want to make sure of the following at the database level:
- No user has a duplicate task, i.e., a user can only have one task called "Sweep the floor."
- Users do not share tasks. For instance, if two users have a task "Sweep the floor.", there should be two tasks with the
summary"Sweep the floor." on the backend, one for each of the two users - I cannot add a
userfield on theTaskmodel - I have to assign ownership ofTaskobjects via permissions
Out of the box, the django_guardian UserObjectPermission has this unique_together constraint:
unique_together = ['user', 'permission', 'object_pk']
I think what I am looking for is a unique_together constraint that is more like this pseudo-code:
unique_together = ['user', 'permission', 'object_pk', 'task__summary']
Or, is there another way to enforce this type of uniqueness at the database level using Django Guardian permissions?
django django-guardian
django django-guardian
asked Jan 2 at 19:32
YPCrumbleYPCrumble
10.1k965119
asked Jan 2 at 19:32
YPCrumbleYPCrumble
10.1k965119
asked Jan 2 at 19:32
YPCrumbleYPCrumble
10.1k965119
asked Jan 2 at 19:32
YPCrumbleYPCrumble
10.1k965119
asked Jan 2 at 19:32
YPCrumbleYPCrumble
10.1k965119
10.1k965119
add a comment |
add a comment |
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