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Django form: reference fields from foreign key
form for simultaneously editing two django models with foreign key relationshipdjango - inlineformset_factory with more than one ForeignKeyHow to remove a key from a Python dictionary?How to temporarily disable a foreign key constraint in MySQL?What is wrong with my models.py?Radio buttons in django adminCreate a new model which have all fields of currently existing modelDjango foreign keys : settings.AUTH_USER_MODEL keeps giving null for form.saveHow to expose some specific fields of model_b based on a field of model_a?How to set dynamic initial values to django modelform fieldrelated name in parent model in django if inherited in other model
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I'm making a task tracker webapp (the full source code is also available) and I have a database structure where each task has a title, a description, and some number of instances, that can each be marked incomplete/incomplete:
class Task(models.Model):
title = OneLineTextField()
description = models.TextField(blank=True)
class TaskInstance(models.Model):
task = models.ForeignKey(Task, on_delete=models.CASCADE)
is_complete = models.BooleanField()
The task and the instances can be shared separately, although access to the instance should imply read access to the task. This is intended for classroom situations, where the teacher creates a task and assigns it to their students.
class TaskPermission(models.Model):
task = models.ForeignKey(Task, on_delete=models.CASCADE, related_name='permissions')
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='task_permissions_granted')
shared_by = models.ForeignKey(User, on_delete=models.PROTECT, null=True, related_name='task_permissions_granting')
can_edit = models.BooleanField(default=False)
class Meta:
unique_together = 'task', 'user', 'shared_by',
class TaskInstancePermission(models.Model):
task_instance = models.ForeignKey(TaskInstance, on_delete=models.CASCADE, related_name='permissions')
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='task_instance_permissions_granted')
shared_by = models.ForeignKey(User, on_delete=models.PROTECT, null=True, related_name='task_instance_permissions_granting')
can_edit = models.BooleanField(default=False)
class Meta:
unique_together = 'task_instance', 'user', 'shared_by',
My question is how to create a form for TaskInstances with fields for its is_complete, as well as its Task's title and description. Would something like this work? Or would I need to implement my own save and clean methods?
class TaskForm(ModelForm):
class Meta:
model = TaskInstance
fields = ('is_complete', 'task__title', 'task__description')
python django django-models django-forms django-model-field
asked Mar 24 at 17:09
Solomon UckoSolomon Ucko
1,12121122
|
show 1 more comment
I'm making a task tracker webapp (the full source code is also available) and I have a database structure where each task has a title, a description, and some number of instances, that can each be marked incomplete/incomplete:
class Task(models.Model):
title = OneLineTextField()
description = models.TextField(blank=True)
class TaskInstance(models.Model):
task = models.ForeignKey(Task, on_delete=models.CASCADE)
is_complete = models.BooleanField()
The task and the instances can be shared separately, although access to the instance should imply read access to the task. This is intended for classroom situations, where the teacher creates a task and assigns it to their students.
class TaskPermission(models.Model):
task = models.ForeignKey(Task, on_delete=models.CASCADE, related_name='permissions')
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='task_permissions_granted')
shared_by = models.ForeignKey(User, on_delete=models.PROTECT, null=True, related_name='task_permissions_granting')
can_edit = models.BooleanField(default=False)
class Meta:
unique_together = 'task', 'user', 'shared_by',
class TaskInstancePermission(models.Model):
task_instance = models.ForeignKey(TaskInstance, on_delete=models.CASCADE, related_name='permissions')
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='task_instance_permissions_granted')
shared_by = models.ForeignKey(User, on_delete=models.PROTECT, null=True, related_name='task_instance_permissions_granting')
can_edit = models.BooleanField(default=False)
class Meta:
unique_together = 'task_instance', 'user', 'shared_by',
My question is how to create a form for TaskInstances with fields for its is_complete, as well as its Task's title and description. Would something like this work? Or would I need to implement my own save and clean methods?
class TaskForm(ModelForm):
class Meta:
model = TaskInstance
fields = ('is_complete', 'task__title', 'task__description')
python django django-models django-forms django-model-field
asked Mar 24 at 17:09
Solomon UckoSolomon Ucko
1,12121122
You don't need to implement them unless you want to override them
– ruddra
Mar 24 at 17:16
I don't really understand your requirements. An arbitrary title and description need not correspond to anyTaskinstance. It would be more normal to simply select the task from a list of existing ones - which you can easily get to display them using title and/or description. This all comes down to how you want the user interface to work.
– Robin Zigmond
Mar 24 at 17:18
@RobinZigmond I see what you're saying. However, I was thinking of having each task have a list of instances, so it goes in the other direction. It would then be possible to modify the task's title & description from the task instance. I might reconsider that, but I want to simplify things for the case of one instance per task, though...
– Solomon Ucko
Mar 24 at 17:32
1
Oh, so you want a page for editing a particularTaskInstanceinstance, in which you can change the title and description of the underlying task? That's perfectly possible (if you don't mind the "action at a distance" of one instance affecting every other based on the sameTask) - in that case use a regularFormrather than aModelFormand do all the necessary database inserts/updates in your view.
– Robin Zigmond
Mar 24 at 17:36
1
Possible duplicate of form for simultaneously editing two django models with foreign key relationship
– Paandittya
Mar 24 at 21:54
|
show 1 more comment
I'm making a task tracker webapp (the full source code is also available) and I have a database structure where each task has a title, a description, and some number of instances, that can each be marked incomplete/incomplete:
class Task(models.Model):
title = OneLineTextField()
description = models.TextField(blank=True)
class TaskInstance(models.Model):
task = models.ForeignKey(Task, on_delete=models.CASCADE)
is_complete = models.BooleanField()
The task and the instances can be shared separately, although access to the instance should imply read access to the task. This is intended for classroom situations, where the teacher creates a task and assigns it to their students.
class TaskPermission(models.Model):
task = models.ForeignKey(Task, on_delete=models.CASCADE, related_name='permissions')
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='task_permissions_granted')
shared_by = models.ForeignKey(User, on_delete=models.PROTECT, null=True, related_name='task_permissions_granting')
can_edit = models.BooleanField(default=False)
class Meta:
unique_together = 'task', 'user', 'shared_by',
class TaskInstancePermission(models.Model):
task_instance = models.ForeignKey(TaskInstance, on_delete=models.CASCADE, related_name='permissions')
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='task_instance_permissions_granted')
shared_by = models.ForeignKey(User, on_delete=models.PROTECT, null=True, related_name='task_instance_permissions_granting')
can_edit = models.BooleanField(default=False)
class Meta:
unique_together = 'task_instance', 'user', 'shared_by',
My question is how to create a form for TaskInstances with fields for its is_complete, as well as its Task's title and description. Would something like this work? Or would I need to implement my own save and clean methods?
class TaskForm(ModelForm):
class Meta:
model = TaskInstance
fields = ('is_complete', 'task__title', 'task__description')
python django django-models django-forms django-model-field
asked Mar 24 at 17:09
Solomon UckoSolomon Ucko
1,12121122
I'm making a task tracker webapp (the full source code is also available) and I have a database structure where each task has a title, a description, and some number of instances, that can each be marked incomplete/incomplete:
class Task(models.Model):
title = OneLineTextField()
description = models.TextField(blank=True)
class TaskInstance(models.Model):
task = models.ForeignKey(Task, on_delete=models.CASCADE)
is_complete = models.BooleanField()
The task and the instances can be shared separately, although access to the instance should imply read access to the task. This is intended for classroom situations, where the teacher creates a task and assigns it to their students.
class TaskPermission(models.Model):
task = models.ForeignKey(Task, on_delete=models.CASCADE, related_name='permissions')
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='task_permissions_granted')
shared_by = models.ForeignKey(User, on_delete=models.PROTECT, null=True, related_name='task_permissions_granting')
can_edit = models.BooleanField(default=False)
class Meta:
unique_together = 'task', 'user', 'shared_by',
class TaskInstancePermission(models.Model):
task_instance = models.ForeignKey(TaskInstance, on_delete=models.CASCADE, related_name='permissions')
user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='task_instance_permissions_granted')
shared_by = models.ForeignKey(User, on_delete=models.PROTECT, null=True, related_name='task_instance_permissions_granting')
can_edit = models.BooleanField(default=False)
class Meta:
unique_together = 'task_instance', 'user', 'shared_by',
My question is how to create a form for TaskInstances with fields for its is_complete, as well as its Task's title and description. Would something like this work? Or would I need to implement my own save and clean methods?
class TaskForm(ModelForm):
class Meta:
model = TaskInstance
fields = ('is_complete', 'task__title', 'task__description')
python django django-models django-forms django-model-field
python django django-models django-forms django-model-field
asked Mar 24 at 17:09
Solomon UckoSolomon Ucko
1,12121122
asked Mar 24 at 17:09
Solomon UckoSolomon Ucko
1,12121122
edited Mar 24 at 18:06
Solomon Ucko
asked Mar 24 at 17:09
Solomon UckoSolomon Ucko
1,12121122
asked Mar 24 at 17:09
Solomon UckoSolomon Ucko
1,12121122
asked Mar 24 at 17:09
Solomon UckoSolomon Ucko
1,12121122
1,12121122
You don't need to implement them unless you want to override them
– ruddra
Mar 24 at 17:16
I don't really understand your requirements. An arbitrary title and description need not correspond to anyTaskinstance. It would be more normal to simply select the task from a list of existing ones - which you can easily get to display them using title and/or description. This all comes down to how you want the user interface to work.
– Robin Zigmond
Mar 24 at 17:18
@RobinZigmond I see what you're saying. However, I was thinking of having each task have a list of instances, so it goes in the other direction. It would then be possible to modify the task's title & description from the task instance. I might reconsider that, but I want to simplify things for the case of one instance per task, though...
– Solomon Ucko
Mar 24 at 17:32
1
Oh, so you want a page for editing a particularTaskInstanceinstance, in which you can change the title and description of the underlying task? That's perfectly possible (if you don't mind the "action at a distance" of one instance affecting every other based on the sameTask) - in that case use a regularFormrather than aModelFormand do all the necessary database inserts/updates in your view.
– Robin Zigmond
Mar 24 at 17:36
1
Possible duplicate of form for simultaneously editing two django models with foreign key relationship
– Paandittya
Mar 24 at 21:54
|
show 1 more comment
You don't need to implement them unless you want to override them
– ruddra
Mar 24 at 17:16
I don't really understand your requirements. An arbitrary title and description need not correspond to anyTaskinstance. It would be more normal to simply select the task from a list of existing ones - which you can easily get to display them using title and/or description. This all comes down to how you want the user interface to work.
– Robin Zigmond
Mar 24 at 17:18
@RobinZigmond I see what you're saying. However, I was thinking of having each task have a list of instances, so it goes in the other direction. It would then be possible to modify the task's title & description from the task instance. I might reconsider that, but I want to simplify things for the case of one instance per task, though...
– Solomon Ucko
Mar 24 at 17:32
1
Oh, so you want a page for editing a particularTaskInstanceinstance, in which you can change the title and description of the underlying task? That's perfectly possible (if you don't mind the "action at a distance" of one instance affecting every other based on the sameTask) - in that case use a regularFormrather than aModelFormand do all the necessary database inserts/updates in your view.
– Robin Zigmond
Mar 24 at 17:36
1
Possible duplicate of form for simultaneously editing two django models with foreign key relationship
– Paandittya
Mar 24 at 21:54
You don't need to implement them unless you want to override them
– ruddra
Mar 24 at 17:16
You don't need to implement them unless you want to override them
– ruddra
Mar 24 at 17:16
I don't really understand your requirements. An arbitrary title and description need not correspond to any
Task instance. It would be more normal to simply select the task from a list of existing ones - which you can easily get to display them using title and/or description. This all comes down to how you want the user interface to work.– Robin Zigmond
Mar 24 at 17:18
I don't really understand your requirements. An arbitrary title and description need not correspond to any
Task instance. It would be more normal to simply select the task from a list of existing ones - which you can easily get to display them using title and/or description. This all comes down to how you want the user interface to work.– Robin Zigmond
Mar 24 at 17:18
@RobinZigmond I see what you're saying. However, I was thinking of having each task have a list of instances, so it goes in the other direction. It would then be possible to modify the task's title & description from the task instance. I might reconsider that, but I want to simplify things for the case of one instance per task, though...
– Solomon Ucko
Mar 24 at 17:32
@RobinZigmond I see what you're saying. However, I was thinking of having each task have a list of instances, so it goes in the other direction. It would then be possible to modify the task's title & description from the task instance. I might reconsider that, but I want to simplify things for the case of one instance per task, though...
– Solomon Ucko
Mar 24 at 17:32
1
1
Oh, so you want a page for editing a particular
TaskInstance instance, in which you can change the title and description of the underlying task? That's perfectly possible (if you don't mind the "action at a distance" of one instance affecting every other based on the same Task) - in that case use a regular Form rather than a ModelForm and do all the necessary database inserts/updates in your view.– Robin Zigmond
Mar 24 at 17:36
Oh, so you want a page for editing a particular
TaskInstance instance, in which you can change the title and description of the underlying task? That's perfectly possible (if you don't mind the "action at a distance" of one instance affecting every other based on the same Task) - in that case use a regular Form rather than a ModelForm and do all the necessary database inserts/updates in your view.– Robin Zigmond
Mar 24 at 17:36
1
1
Possible duplicate of form for simultaneously editing two django models with foreign key relationship
– Paandittya
Mar 24 at 21:54
Possible duplicate of form for simultaneously editing two django models with foreign key relationship
– Paandittya
Mar 24 at 21:54
|
show 1 more comment
1 Answer
1
active
oldest
votes
I think inlineformset_factory is what I'm looking for!
Actually, it does not seem to be useful: it is for multiple forms of the same type, not different types...
answered Mar 24 at 22:45
Solomon UckoSolomon Ucko
1,12121122
add a comment |
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1 Answer
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1 Answer
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votes
I think inlineformset_factory is what I'm looking for!
Actually, it does not seem to be useful: it is for multiple forms of the same type, not different types...
answered Mar 24 at 22:45
Solomon UckoSolomon Ucko
1,12121122
add a comment |
I think inlineformset_factory is what I'm looking for!
Actually, it does not seem to be useful: it is for multiple forms of the same type, not different types...
answered Mar 24 at 22:45
Solomon UckoSolomon Ucko
1,12121122
add a comment |
I think inlineformset_factory is what I'm looking for!
Actually, it does not seem to be useful: it is for multiple forms of the same type, not different types...
answered Mar 24 at 22:45
Solomon UckoSolomon Ucko
1,12121122
I think inlineformset_factory is what I'm looking for!
Actually, it does not seem to be useful: it is for multiple forms of the same type, not different types...
answered Mar 24 at 22:45
Solomon UckoSolomon Ucko
1,12121122
edited Mar 25 at 18:54
answered Mar 24 at 22:45
Solomon UckoSolomon Ucko
1,12121122
answered Mar 24 at 22:45
Solomon UckoSolomon Ucko
1,12121122
answered Mar 24 at 22:45
Solomon UckoSolomon Ucko
1,12121122
1,12121122
add a comment |
add a comment |
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You don't need to implement them unless you want to override them
– ruddra
Mar 24 at 17:16
I don't really understand your requirements. An arbitrary title and description need not correspond to any
Taskinstance. It would be more normal to simply select the task from a list of existing ones - which you can easily get to display them using title and/or description. This all comes down to how you want the user interface to work.– Robin Zigmond
Mar 24 at 17:18
@RobinZigmond I see what you're saying. However, I was thinking of having each task have a list of instances, so it goes in the other direction. It would then be possible to modify the task's title & description from the task instance. I might reconsider that, but I want to simplify things for the case of one instance per task, though...
– Solomon Ucko
Mar 24 at 17:32
1
Oh, so you want a page for editing a particular
TaskInstanceinstance, in which you can change the title and description of the underlying task? That's perfectly possible (if you don't mind the "action at a distance" of one instance affecting every other based on the sameTask) - in that case use a regularFormrather than aModelFormand do all the necessary database inserts/updates in your view.– Robin Zigmond
Mar 24 at 17:36
1
Possible duplicate of form for simultaneously editing two django models with foreign key relationship
– Paandittya
Mar 24 at 21:54