django: how to display choices in form's ChoiceField depending on the current user's data
I have the following form with 4 fields:
from django import forms
from django.apps import apps
from .models import Task
CustomUser = apps.get_model('users', 'CustomUser')
students = CustomUser.objects.filter(status='student')
students_choices = [(student.username, student) for student in students]
class AddTaskForm(forms.ModelForm):
class Meta:
model = Task
fields = ('title', 'description', 'deadline', 'student')
widgets = {
'deadline': forms.SelectDateWidget(),
}
student = forms.ChoiceField(choices=students_choices)
The "student" field will display the choices with all users with status "student". But what if I want the queryset to be:
students = CustomUser.objects.filter(status='student', username__in=user.students.split())
How can I get user here?
django django-forms
asked Nov 21 '18 at 19:37
user10687617user10687617
31
add a comment |
I have the following form with 4 fields:
from django import forms
from django.apps import apps
from .models import Task
CustomUser = apps.get_model('users', 'CustomUser')
students = CustomUser.objects.filter(status='student')
students_choices = [(student.username, student) for student in students]
class AddTaskForm(forms.ModelForm):
class Meta:
model = Task
fields = ('title', 'description', 'deadline', 'student')
widgets = {
'deadline': forms.SelectDateWidget(),
}
student = forms.ChoiceField(choices=students_choices)
The "student" field will display the choices with all users with status "student". But what if I want the queryset to be:
students = CustomUser.objects.filter(status='student', username__in=user.students.split())
How can I get user here?
django django-forms
asked Nov 21 '18 at 19:37
user10687617user10687617
31
add a comment |
I have the following form with 4 fields:
from django import forms
from django.apps import apps
from .models import Task
CustomUser = apps.get_model('users', 'CustomUser')
students = CustomUser.objects.filter(status='student')
students_choices = [(student.username, student) for student in students]
class AddTaskForm(forms.ModelForm):
class Meta:
model = Task
fields = ('title', 'description', 'deadline', 'student')
widgets = {
'deadline': forms.SelectDateWidget(),
}
student = forms.ChoiceField(choices=students_choices)
The "student" field will display the choices with all users with status "student". But what if I want the queryset to be:
students = CustomUser.objects.filter(status='student', username__in=user.students.split())
How can I get user here?
django django-forms
asked Nov 21 '18 at 19:37
user10687617user10687617
31
I have the following form with 4 fields:
from django import forms
from django.apps import apps
from .models import Task
CustomUser = apps.get_model('users', 'CustomUser')
students = CustomUser.objects.filter(status='student')
students_choices = [(student.username, student) for student in students]
class AddTaskForm(forms.ModelForm):
class Meta:
model = Task
fields = ('title', 'description', 'deadline', 'student')
widgets = {
'deadline': forms.SelectDateWidget(),
}
student = forms.ChoiceField(choices=students_choices)
The "student" field will display the choices with all users with status "student". But what if I want the queryset to be:
students = CustomUser.objects.filter(status='student', username__in=user.students.split())
How can I get user here?
django django-forms
django django-forms
asked Nov 21 '18 at 19:37
user10687617user10687617
31
asked Nov 21 '18 at 19:37
user10687617user10687617
31
asked Nov 21 '18 at 19:37
user10687617user10687617
31
asked Nov 21 '18 at 19:37
user10687617user10687617
31
asked Nov 21 '18 at 19:37
user10687617user10687617
31
31
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
First of all, do not do the query on module level:
students = CustomUser.objects.filter(status='student')
This line will execute only one time (at the application start).
So to answer to your question:
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['student'] = forms.ChoiceField(choices=((student.id, student.username) for student in custom_queryset))
And this is of course the AddTaskForm init
Wonder if this is some kind of a student task ;)
Happy coding.
answered Nov 21 '18 at 19:46
opalczynskiopalczynski
1,035810
I've tried this before, but got an error because I didn't know that super() must be called before the assignment. Thanks anyway.
– user10687617
Nov 21 '18 at 20:01
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
First of all, do not do the query on module level:
students = CustomUser.objects.filter(status='student')
This line will execute only one time (at the application start).
So to answer to your question:
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['student'] = forms.ChoiceField(choices=((student.id, student.username) for student in custom_queryset))
And this is of course the AddTaskForm init
Wonder if this is some kind of a student task ;)
Happy coding.
answered Nov 21 '18 at 19:46
opalczynskiopalczynski
1,035810
I've tried this before, but got an error because I didn't know that super() must be called before the assignment. Thanks anyway.
– user10687617
Nov 21 '18 at 20:01
add a comment |
First of all, do not do the query on module level:
students = CustomUser.objects.filter(status='student')
This line will execute only one time (at the application start).
So to answer to your question:
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['student'] = forms.ChoiceField(choices=((student.id, student.username) for student in custom_queryset))
And this is of course the AddTaskForm init
Wonder if this is some kind of a student task ;)
Happy coding.
answered Nov 21 '18 at 19:46
opalczynskiopalczynski
1,035810
I've tried this before, but got an error because I didn't know that super() must be called before the assignment. Thanks anyway.
– user10687617
Nov 21 '18 at 20:01
add a comment |
First of all, do not do the query on module level:
students = CustomUser.objects.filter(status='student')
This line will execute only one time (at the application start).
So to answer to your question:
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['student'] = forms.ChoiceField(choices=((student.id, student.username) for student in custom_queryset))
And this is of course the AddTaskForm init
Wonder if this is some kind of a student task ;)
Happy coding.
answered Nov 21 '18 at 19:46
opalczynskiopalczynski
1,035810
First of all, do not do the query on module level:
students = CustomUser.objects.filter(status='student')
This line will execute only one time (at the application start).
So to answer to your question:
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.fields['student'] = forms.ChoiceField(choices=((student.id, student.username) for student in custom_queryset))
And this is of course the AddTaskForm init
Wonder if this is some kind of a student task ;)
Happy coding.
answered Nov 21 '18 at 19:46
opalczynskiopalczynski
1,035810
answered Nov 21 '18 at 19:46
opalczynskiopalczynski
1,035810
answered Nov 21 '18 at 19:46
opalczynskiopalczynski
1,035810
answered Nov 21 '18 at 19:46
opalczynskiopalczynski
1,035810
1,035810
I've tried this before, but got an error because I didn't know that super() must be called before the assignment. Thanks anyway.
– user10687617
Nov 21 '18 at 20:01
add a comment |
I've tried this before, but got an error because I didn't know that super() must be called before the assignment. Thanks anyway.
– user10687617
Nov 21 '18 at 20:01
I've tried this before, but got an error because I didn't know that super() must be called before the assignment. Thanks anyway.
– user10687617
Nov 21 '18 at 20:01
I've tried this before, but got an error because I didn't know that super() must be called before the assignment. Thanks anyway.
– user10687617
Nov 21 '18 at 20:01
add a comment |
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