from django.db import models
from django.urls import reverse

class Category(models.Model):
     name = models.CharField(max_length=200)
     slug = models.SlugField(max_length=200,unique=True)
     class Meta:
         ordering = ['name']
         indexes = [
         models.Index(fields=['name']),
         ]
         verbose_name = 'category'
         verbose_name_plural = 'categories'
     def __str__(self):
      return self.name

     def get_absolute_url(self):
         return reverse('main:product_list_by_category',args=[self.slug])

class Product(models.Model):

    category = models.ForeignKey(Category,
                                 related_name='products',
                                 on_delete=models.CASCADE)
    name = models.CharField(max_length=200)
    slug = models.SlugField(max_length=200)
    image = models.ImageField(upload_to='products/%Y/%m/%d',
                              blank=True)
    description = models.TextField(blank=True)
    price = models.IntegerField(max_length=19)
    available = models.BooleanField(default=True)
    created = models.DateTimeField(auto_now_add=True)
    updated = models.DateTimeField(auto_now=True)

    class Meta:
        ordering = ['name']

    indexes = [
        models.Index(fields=['id', 'slug']),
        models.Index(fields=['name']),
        models.Index(fields=['-created']),
    ]

    def __str__(self):
        return self.name
    def get_absolute_url(self):
        return reverse('main:product_detail',args=[self.id,self.slug])