How to use ForeignKey.limit_choices_to to limit relation between two objects with the same parent object
I have the following django models:
class League(models.Model):
class Division(models.Model):
league = models.ForeignKey(League)
class Season(models.Model):
league = models.ForeignKey(League)
divisions = models.ManyToManyField(Division)
Is it possible to use ManyToManyField.limit_choices_to on Season.divisions to require that a season and division can only be related if they have the same league value?
According to the django documentation, limit_choices_to
Sets a limit to the available choices for this field when this field
is rendered using a ModelForm or the admin (by default, all objects in
the queryset are available to choose). Either a dictionary, a Q
object, or a callable returning a dictionary or Q object can be used.
Is there some way to use a Q() and use a reference to the current Season record? Something like the following does not work because self isn't defined, but perhaps there is some way of specifying something similar:
divisions = models.ManyToManyField(Division, limit_choices_to=Q( league = self.league )
django-models django-admin
asked Nov 15 '18 at 21:49
mightyrosermightyroser
40547
add a comment |
I have the following django models:
class League(models.Model):
class Division(models.Model):
league = models.ForeignKey(League)
class Season(models.Model):
league = models.ForeignKey(League)
divisions = models.ManyToManyField(Division)
Is it possible to use ManyToManyField.limit_choices_to on Season.divisions to require that a season and division can only be related if they have the same league value?
According to the django documentation, limit_choices_to
Sets a limit to the available choices for this field when this field
is rendered using a ModelForm or the admin (by default, all objects in
the queryset are available to choose). Either a dictionary, a Q
object, or a callable returning a dictionary or Q object can be used.
Is there some way to use a Q() and use a reference to the current Season record? Something like the following does not work because self isn't defined, but perhaps there is some way of specifying something similar:
divisions = models.ManyToManyField(Division, limit_choices_to=Q( league = self.league )
django-models django-admin
asked Nov 15 '18 at 21:49
mightyrosermightyroser
40547
Have you triedlimit_choices_to={'league': F('league')}?
– Hugo Luis Villalobos Canto
Nov 22 '18 at 3:24
add a comment |
I have the following django models:
class League(models.Model):
class Division(models.Model):
league = models.ForeignKey(League)
class Season(models.Model):
league = models.ForeignKey(League)
divisions = models.ManyToManyField(Division)
Is it possible to use ManyToManyField.limit_choices_to on Season.divisions to require that a season and division can only be related if they have the same league value?
According to the django documentation, limit_choices_to
Sets a limit to the available choices for this field when this field
is rendered using a ModelForm or the admin (by default, all objects in
the queryset are available to choose). Either a dictionary, a Q
object, or a callable returning a dictionary or Q object can be used.
Is there some way to use a Q() and use a reference to the current Season record? Something like the following does not work because self isn't defined, but perhaps there is some way of specifying something similar:
divisions = models.ManyToManyField(Division, limit_choices_to=Q( league = self.league )
django-models django-admin
asked Nov 15 '18 at 21:49
mightyrosermightyroser
40547
I have the following django models:
class League(models.Model):
class Division(models.Model):
league = models.ForeignKey(League)
class Season(models.Model):
league = models.ForeignKey(League)
divisions = models.ManyToManyField(Division)
Is it possible to use ManyToManyField.limit_choices_to on Season.divisions to require that a season and division can only be related if they have the same league value?
According to the django documentation, limit_choices_to
Sets a limit to the available choices for this field when this field
is rendered using a ModelForm or the admin (by default, all objects in
the queryset are available to choose). Either a dictionary, a Q
object, or a callable returning a dictionary or Q object can be used.
Is there some way to use a Q() and use a reference to the current Season record? Something like the following does not work because self isn't defined, but perhaps there is some way of specifying something similar:
divisions = models.ManyToManyField(Division, limit_choices_to=Q( league = self.league )
django-models django-admin
django-models django-admin
asked Nov 15 '18 at 21:49
mightyrosermightyroser
40547
asked Nov 15 '18 at 21:49
mightyrosermightyroser
40547
asked Nov 15 '18 at 21:49
mightyrosermightyroser
40547
asked Nov 15 '18 at 21:49
mightyrosermightyroser
40547
asked Nov 15 '18 at 21:49
mightyrosermightyroser
40547
40547
Have you triedlimit_choices_to={'league': F('league')}?
– Hugo Luis Villalobos Canto
Nov 22 '18 at 3:24
add a comment |
Have you triedlimit_choices_to={'league': F('league')}?
– Hugo Luis Villalobos Canto
Nov 22 '18 at 3:24
Have you tried
limit_choices_to={'league': F('league')}?– Hugo Luis Villalobos Canto
Nov 22 '18 at 3:24
Have you tried
limit_choices_to={'league': F('league')}?– Hugo Luis Villalobos Canto
Nov 22 '18 at 3:24
add a comment |
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Have you tried
limit_choices_to={'league': F('league')}?– Hugo Luis Villalobos Canto
Nov 22 '18 at 3:24