CODEWITHSUNDEEP
pythondjango
EngineerCamp
EngineerCamp

Reputation: 671

Add Django ForeignKey as drop down selection on admin page

I want to be able to create a model TestCase which has a products field which is a ForeignKey to antoher model Product. I want to be able to create a new Product using the Admin page and then when I create a TestCase I want to be able to select from Products I have already created. A dropbox would be ideal. This is what I have tried:

models.py

class TestCase(TestBase):

    def __str__(self):
        return self.title


class Product(models.Model):
    products = models.ForeignKey(TestCase, on_delete=models.CASCADE, null=True)
    name = models.CharField(max_length=200, default='')

    def __str__(self):
        return self.name

admin.py

class ProductInline(admin.TabularInline):

    model = Product


class TestCaseAdmin(admin.ModelAdmin):

    inlines = [ProductInline]

admin.site.register(TestCase, TestCaseAdmin)

Adding a new TestCase on the admin page now has fields to create a Product but I want to select from already created Products instead?

Thanks in advance.

Upvotes: 0

Views: 99

Answers (1)

Daniel Roseman
Daniel Roseman

Reputation: 599480

You have the wrong model structure. If you want to be able to choose from a list of already-existing Products in your TestCase, and a Product can belong to multiple TestCases, you need a ManyToManyField which lives on TestCase.

Upvotes: 2

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