Model Methods & Properties

# blog/models.py
# from django.db import models
# from django.urls import reverse
# from django.utils import timezone

# class Post(models.Model):
#     title = models.CharField(max_length=200)
#     content = models.TextField()
#     created_at = models.DateTimeField(auto_now_add=True)
#     published_at = models.DateTimeField(null=True, blank=True)
#     views_count = models.IntegerField(default=0)
#
#     def __str__(self):
#         return self.title
#
#     # Canonical URL for the object
#     def get_absolute_url(self):
#         return reverse('blog:post-detail', args=[self.pk])
#
#     # Computed property — not in database
#     @property
#     def is_published(self):
#         return self.published_at is not None
#
#     @property
#     def read_time(self):
#         words = len(self.content.split())
#         return max(1, words // 200)
#
#     # Custom method
#     def publish(self):
#         self.published_at = timezone.now()
#         self.save()
#
#     def increment_views(self):
#         self.views_count += 1
#         self.save(update_fields=['views_count'])
#
#     # Override save for custom logic
#     def save(self, *args, **kwargs):
#         if not self.slug:
#             from django.utils.text import slugify
#             self.slug = slugify(self.title)
#         super().save(*args, **kwargs)