How get products from product table based on the category search in django restframework, How do inner join in django restframework

Question

I am very much new in django restframework,I tried to create a search api.

I have 2 models designed

class Category(models.Model):
    name = models.CharField(max_length=200)

    def __str__(self):
        return self.name

class Product(models.Model):
    product_name = models.CharField(max_length=255)
    product_Comments = models.CharField(max_length=255)
    size = models.CharField(max_length=10, null=True)
    product_Status = models.BooleanField(default=True)
    category = models.ForeignKey(Category,  on_delete=models.CASCADE, null=True)

    def __str__(self):
        return self.product_Description

I want to create a rest API, in which I can search the category and based on the search i want to list the product which related to that category. How can I do it.

My Views.py

class productList(generics.ListAPIView):
   serializer_class = productSerializer
   def get_queryset(self):
       queryset = Product.objects.all()
       search = self.request.query_params.get('search', None)
       if search is not None:
           queryset = queryset.filter(product_name__icontains=search)

my urls

path('product_search/',views.productList.as_view()),

Answer 1

You're almost there, you just need to add filtering .

Also, you almost never need to override the get() method of a generic view. Look for the method that let's you do the least amount of work. For any view, you will do most work in get_queryset and a view specific method:

• List: view. list()
• Create: view. create()
• Retrieve: view. retrieve()
• Update: view. perform_update()
• Destroy: view. perform_destroy()

The rest can be customized by setting the correct class attributes. There are very few cases where it is necessary to override a view's "get" or "post" methods.

So, get_queryset is the place to modify the collection of objects that you are going to work on. This is perfect for filtering and thus search. A lot of work is already available in DRF and you can use it:

class productList(generics.ListAPIView):
    serializer_class = productSerializer
    def get_queryset(self):
        queryset = Product.objects.all()
        search = self.request.query_params.get('search', None)
        if search is not None:
            queryset = queryset.filter(category__name__icontains=search)
        # don't forget to return the queryset
        return queryset

Answer 2

For filtering the Products based on category name is,

Product.object.filter( category__name = 'category_name')