나는 봤지만 많은 기사를 읽었지만 여러 테이블에 혼란스러워했습니다. Django가 장고를 사용하여 여러 모델에 합류했습니다. ORM
class ProductCategory(models.Model):
category_name = models.CharField(max_length=200,blank=True, null=True, unique=True)
category_image = models.ImageField(upload_to='category', null=True, blank=True)
created_at = models.DateTimeField(auto_now_add=True, blank=True, null=True)
updated_at = models.DateTimeField(auto_now=True, blank=True, null=True)
status = models.CharField(max_length=10, default='Active', choices=status)
def __unicode__(self):
return '%s' % (self.category_name)
class ProductSubCategory(models.Model):
category = models.ForeignKey(ProductCategory)
sub_category_name = models.CharField(max_length=200,blank=True, null=True, unique=True)
created_at = models.DateTimeField(auto_now_add=True, blank=True, null=True)
updated_at = models.DateTimeField(auto_now=True, blank=True, null=True)
sub_category_image = models.ImageField(upload_to='subcategory', null=True, blank=True)
status = models.CharField(max_length=10, default='Active', choices=status)
def __unicode__(self):
return '%s' % (self.sub_category_name)
class Product(models.Model):
category = models.ForeignKey(ProductCategory)
sub_category = models.ForeignKey(ProductSubCategory)
product_name = models.CharField(max_length=200,blank=True, null=True)
product_price = models.FloatField(default=0)
created_at = models.DateTimeField(auto_now_add=True, blank=True, null=True)
updated_at = models.DateTimeField(auto_now=True, blank=True, null=True)
# is_discountable = models.CharField(max_length=3, default='Yes', choices=option)
status = models.CharField(max_length=10, default='Active', choices=status)
def __unicode__(self):
return '%s' % (self.product_name)
class ProductColor(models.Model):
product = models.ForeignKey(Product)
product_color = models.ForeignKey(Color, related_name='product_color_id', blank=True, null=True)
product_size = models.ForeignKey(Size, related_name='product_size_id', blank=True, null=True)
class ProductImages(models.Model):
product = models.ForeignKey(Product, on_delete=models.CASCADE, blank=True, null=True)
product_image = models.ImageField(upload_to='images', null=True, blank=True)
지금보기에, 나는 카테고리 모든 이미지와 색상을 가진 하위 범주에 따라 제품 필터를 얻고 싶은 '예요 내 모델 보인다. 쿼리는 SQL에 따라서
SELECT product.*, productcolor.*, productimage.* FROM product
LEFT JOIN productcolor ON productcolor.product_id = product.id
LEFT JOIN productcolor.product_id = product.id
LEFT JOIN productimage ON productimage.product_id = product.id
WHERE product.category_id=1 and product.sub_category_id=1
귀하의 필요가 광범위하게 보입니다. 당신은 정교 할 수 있습니까? 예제를 제공하십시오. –
@vishes_shell이 방금 질문을 업데이트했습니다. –
@vishes_shell 시도했지만 여전히 convient 솔루션을 얻지 못했습니다 : ( –