Re: Optmized Query

Profile.objects.filter().select_related("user").prefetch_related("location")

On Thu, May 28, 2020, 2:01 AM Soumen Khatua <soumenkhatua258@gmail.com> wrote:

I also know about this concept but I don't how I can achieve it, Could you give me an example?
Suppose I have:

class Profile(models.Model):
    user = models.OneToOneField(
        settings.AUTH_USER_MODEL,
        on_delete = models.CASCADE,
        related_name="profile"
    )
    location = models.ManyToManyField(Location)

Thank you

Regards,

Soumen

On Wed, May 27, 2020 at 7:20 PM Chetan Ganji <ganji.chetan@gmail.com> wrote:

select_related for fk and prefetch_related for m2m in django, you can chain them together 

Regards,

Chetan Ganji

+91-900-483-4183

ganji.chetan@gmail.com

http://ryucoder.in

On Wed, May 27, 2020 at 4:51 PM Soumen Khatua <soumenkhatua258@gmail.com> wrote:

Hi Folks,

I have many to many relationships and Foreign Key in the table, I'm using select_realted(foreign key filed name) to optimize the query but I want to fetch many to many and foreign key at the same time , How I can do this in very optimized way?

Thank You

Regards,

Soumen

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