My product model has two different relationship with category model:
1. One to One
2. One to Many through ProductShadowCategory table.
Now the situation is when I tried to fetch using the second relationship, I
am getting the result from my first relationship.
For example this is what I am trying to print:
Category.objects.get(slug="root").shadow_products.all()
but it converts to following sql :
print(Category.objects.get(slug="root").shadow_products.all().query)
SELECT `product_management_product`.`id`,
`product_management_product`.`slug`,
`product_management_product`.`category_id`,
`product_management_product`.`brand_id` FROM
`product_management_product` WHERE
`product_management_product`.`category_id` = 720
My models looks like following:
class Category(SlugableModel):
#...
shadow_products =
models.ManyToManyField("product_management.Product",
through="product_management.ProductShadowCategory")
class Product(SlugableModel):
#...
category = models.ForeignKey(Category,on_delete=models.CASCADE,
related_name="products", validators=[leaf_category])
class ProductShadowCategory(MyModel):
category = models.ForeignKey(Category,on_delete=models.CASCADE)
product = models.ForeignKey(Product,on_delete=models.CASCADE)
class Meta:
unique_together = ('category', 'product')
Also asked on stackoverflow:
https://stackoverflow.com/questions/52417494/my-django-model-joining-wrong-fields-when-there-are-multiple-related-fields-with
--
Md. Sadaf Noor (@sadaf2605 <https://twitter.com/sadaf2605>)
www.sadafnoor.me <https://www.w3schools.com/tags/www.sadafnoor.me>
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