How to create a Django model with a SlugField and default option

To create a Django model with a SlugField and a default option, you can set the default parameter when defining your model field. Here's an example:

pythonCopy code
from django.db import models
from django.utils.text import slugify

class YourModel(models.Model):
    # Your other fields
    title = models.CharField(max_length=100)
    
    # Slug field with default option set to automatically generate a slug from the title
    slug = models.SlugField(max_length=150, unique=True, default='')
    
    def save(self, *args, **kwargs):
        # Automatically generate slug from the title if not provided
        if not self.slug:
            self.slug = slugify(self.title)
        super().save(*args, **kwargs)

    def __str__(self):
        return self.title

In this example:

• We have a model called YourModel with a title field of type CharField and a slug field of type SlugField.
• The default option is set for the slug field. In this case, we set it to an empty string ''.
• The unique=True option ensures that each slug value is unique across all instances of YourModel.
• The save() method is overridden to automatically generate a slug from the title using Django's slugify() function if a slug is not provided.

With the default option set to '', the slug field will default to an empty string if no value is provided during the creation of a new instance of YourModel. Then, in the save() method, a slug will be automatically generated based on the title field if the slug field is empty.