Favorite posts

from django.db import models
from django.shortcuts import reverse
from django.utils.text import slugify
from time import time
from django.contrib.auth.models import User
from django.utils import timezone
from django.conf import settings
from versatileimagefield.fields import VersatileImageField


def gen_slug(s):
    new_slug=slugify(s, allow_unicode=True)
    return new_slug + '-' +str(int(time()))



class Post(models.Model): # Books
    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    image = VersatileImageField(
        'Image',
        upload_to='media_my/',null=True,
         blank=True
    )
    title = models.CharField(max_length=150, db_index=True)
    slug = models.SlugField(max_length=150, unique=True, blank=True)
    tags = models.ManyToManyField('Tag', blank=True, related_name='posts')
    body1 = models.TextField(blank=True)
    body2 = models.TextField(blank=True)
    body3 = models.TextField(blank=True)
    body4 = models.TextField(blank=True)
    body5 = models.TextField(blank=True)
    body6 = models.TextField(blank=True)
    body7 = models.TextField(blank=True)
    body8 = models.TextField(blank=True)
    body9 = models.TextField(blank=True)
    body10 = models.TextField(blank=True)
    date_pub= models.DateTimeField(auto_now_add=True)

    def get_absolute_url(self):
        return reverse('post_detail_url', kwargs={'slug':self.slug})

    def get_update_url(self):
        return reverse('post_update_url', kwargs={'slug': self.slug})

    def gef_delete_url(self):
        return reverse('post_delete_url', kwargs={'slug': self.slug})

    def save(self, *args, **kwargs):
        if not self.id:
            self.slug= gen_slug(self.title)
        super().save(*args, **kwargs)

    def __str__(self):
        return self.title

    class Meta:
        ordering = ['-date_pub']

class Tag(models.Model): # Tags of books
    title=models.CharField(max_length=50)
    slug=models.SlugField(max_length=50, unique=True)

    def get_absolute_url(self):
        return reverse('tag_detail_url', kwargs={'slug': self.slug})

    def get_update_url(self):
        return reverse('tag_update_url', kwargs={'slug': self.slug})

    def gef_delete_url(self):
        return reverse('tag_delete_url', kwargs={'slug': self.slug})

    def __str__(self):
        return self.title

class FavoritePost(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='usersbooks')
    post = models.ManyToManyField('Post')

    def __str__(self):
        return self.post