I have a similar challenge and I think that I shall tackle it by making the
first level dependency outside the main model, i.e. Building should be a
ForeignKey in BuildingOwner model. Then your main model shouldn’t have the a
link to the Building model, but rather 2 ForeignKeys to BuildingOwner. Seems
logical, but will it work?
Bruckner
0836251086
> On 01 Nov 2019, at 00:54, J-23 <bacze...@poczta.fm> wrote:
>
>
> Hello,
> I am new to Django. I have a FormFault model, which has two foreign keys
> "BuildingOwner" and "Building", the key "Building" depends on "BuildingOwner"
> on the form, it gives me two fields of type Select (ComboBox) or is there a
> way in Django that the content of ComboBox changes depending on
> "BuildingOwner" values?
>
> from django.db import models
>
> class Items(models.Model):
> Item_Text = models.CharField("Temat", max_length=100)
>
> def __str__(self):
> return self.Item_Text
>
>
> class Meta:
> verbose_name = "Temat zgłoszenia"
> verbose_name_plural = "Temat zgłoszeń"
>
> class DocumentType(models.Model):
> Document_Text = models.CharField("Rodzaj", max_length=100)
>
> def __str__(self):
> return self.Document_Text
>
> class Meta:
> verbose_name = "Rodzaj zgłoszenia"
> verbose_name_plural = "Rodzaj zgłoszeń"
>
> class Status(models.Model):
> Status_Text = models.CharField("Status", max_length=100)
>
> def __str__(self):
> return self.Status_Text
>
> class Meta:
> verbose_name = "Status zgłoszenia"
> verbose_name_plural = "Status zgłoszeń"
>
> class BuildingOwner(models.Model):
> BuildingOwner_Text = models.CharField("Właściciel", max_length=100)
>
> def __str__(self):
> return self.BuildingOwner_Text
>
> class Meta:
> verbose_name = "Właściciela budynku"
> verbose_name_plural = "Właściciel budynków"
>
> class Building(models.Model):
> BuildingOwner = models.ForeignKey(BuildingOwner, verbose_name="Właściciel
> budynku", on_delete=models.CASCADE)
> Building_Text = models.CharField("Budynek", max_length=150)
>
> def __str__(self):
> return self.Building_Text
>
> class Meta:
> verbose_name = "Budynek"
> verbose_name_plural = "Budynki"
>
> class FormFault(models.Model):
> Person = models.CharField("Imię i Nazwisko",max_length=300)
> Email = models.EmailField("E-mail", max_length=50)
> Items = models.ForeignKey(Items, verbose_name="Temat",
> on_delete=models.CASCADE)
> DocumentType = models.ForeignKey(DocumentType, verbose_name="Rodzaj
> dokumentu", on_delete=models.CASCADE)
> Status = models.ForeignKey(Status, on_delete=models.CASCADE)
> BuildingOwner = models.ForeignKey(BuildingOwner, verbose_name="Właściciel
> budynku", on_delete=models.CASCADE)
> Building = models.ForeignKey(Building, verbose_name="Budynek",
> on_delete=models.CASCADE)
> Place = models.CharField("Lokal", max_length=10)
>
> class Meta:
> verbose_name = "Zgłoszenie"
> verbose_name_plural = "Zgłoszenia"
>
>
>
>
>
>
> I found a library here:
> https://github.com/runekaagaard/django-admin-flexselect
>
> but I'm wondering if this can't be done in a simpler way.
>
> Best regards,
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