Question 295121 in Mongodb Question posted in
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Mongodb – How do I put an ID?

I have a Django backend project connected to a Mongo database.
I want to manually and personally define the field ID inside this class to be stored in the database so that Django and Mongo can communicate with each other so that I can edit or delete through the Django admin panel.

from djongo import models

class Category2(models.Model):

    # id =
    name = models.CharField(max_length=200)
    slug = models.SlugField(max_length=200, unique=True)
    price = models.PositiveIntegerField()


    class Meta:
        ordering = ('name',)

    def __str__(self):
        return self.name

Unfortunately, I have no idea how to do it

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2

Answers


  1. 0 
    from djongo import models

class Category2(models.Model):
    _id = models.ObjectIdField(primary_key=True, default=None)
    name = models.CharField(max_length=200)
    slug = models.SlugField(max_length=200, unique=True)
    price = models.PositiveIntegerField()

    class Meta:
        ordering = ('name',)

    def __str__(self):
        return self.name

    NOTE – After making changes to your model, you may need to perform migrations (python manage.py makemigrations and python manage.py migrate)

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  2. 0

    By default, Django use a hidden primary key field, an integer, that is autoincremented. If you want to use another field type, for example CharField(), you need to add the primary_key=True to that CharField. Example:

    class Category2(models.Model):
    id = models.CharField(max_length=32, primary_key=True)
    # ...

    Source: Automatic primary key fields

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