外部キーがCSVアップロードで設定されていない - Django

Question

csvをdjangoにインポートするときに、外部キーが設定されていません。 5月コードが間違っている可能性があります私は外部キーをインポートすることができますが、私はそれらを製品オブジェクトに設定できません。

私は外出して、外来を手動で設定する必要はありません。

モデル

from django.db import models 
from django.core.urlresolvers import reverse 
from django.template.defaultfilters import slugify 

# Create your models here. 
class Category(models.Model): 
    parent = models.ForeignKey('self', blank=True, null=True) 
    category_name = models.CharField(max_length=250, blank=True) 
    slug = models.SlugField(max_length=250, unique=True) 

    def save(self, *args, **kwargs): 
     self.slug = slugify(self.category_name) 
     super(Category, self).save(*args, **kwargs) 

    #def get_absolute_url(self): 
     #return reverse('products:category', args=[self.id]) #kwargs={'slug': self.slug} 

    def __str__(self): 
     return self.category_name 

class Company(models.Model): 
    company_name = models.CharField(max_length=500) 
    company_url = models.URLField(max_length=1000, blank=True) 
    slug = models.SlugField(max_length=500) 

    def save(self, *args, **kwargs): 
     self.slug = slugify(self.company_name) 
     super(Company, self).save(*args, **kwargs) 

    #def get_absolute_url(self): 
     #return reverse('products:category', args=[self.id]) #kwargs={'slug': self.slug} 

    def __str__(self): 
     return self.company_name 

class Manufacturer(models.Model): 
    manufacturer_name = models.CharField(max_length=500) 
    slug = models.SlugField(max_length=500) 

    def save(self, *args, **kwargs): 
     self.slug = slugify(self.manufacturer_name) 
     super(Manufacturer, self).save(*args, **kwargs) 

    #def get_absolute_url(self): 
     #return reverse('products:category', args=[self.id]) #kwargs={'slug': self.slug} 

    def __str__(self): 
     return self.manufacturer_name 

class Product(models.Model): 
    product_name = models.CharField(max_length=500, blank=True) 
    product_description = models.TextField(blank=True) 
    company = models.ForeignKey(Company, blank=True, null=True) 
    category = models.ForeignKey(Category, blank=True, null=True) 
    manufacturer = models.ForeignKey(Manufacturer) 
    buy_link = models.URLField(max_length=1000, blank=True) 
    product_image_url = models.URLField(max_length=1000, blank=True) 
    price = models.CharField(max_length=30, blank=True) 
    orginal_price = models.CharField(max_length=30, blank=True) 
    stock = models.CharField(max_length=30, blank=True) 
    sku = models.CharField(max_length=250, blank=True) 
    slug = models.SlugField(max_length=500, unique=True) 
    date_added = models.DateTimeField(auto_now_add=True, auto_now=False) 
    updated = models.DateTimeField(auto_now_add=False, auto_now=True) 

    def save(self, *args, **kwargs): 
     self.slug = slugify("{obj.product_name}-{obj.id}".format(obj=self)) 
     super(Product, self).save(*args, **kwargs) 

    def get_absolute_url(self): 
     return reverse('products:product_detail', args=[self.slug]) #kwargs={'slug': self.slug} 

    def __str__(self): 
     return self.product_name 

ビュー

以下

def upload(request): 
    if not request.user.is_authenticated: 
     return redirect("home") 

    csv_path = os.path.dirname(os.path.abspath(__file__)) 
    try: 
     with open(csv_path + '/product.csv') as f: 
      reader = csv.reader(f) 
      for row in reader: 
       _, created = Product.objects.get_or_create(
        product_name=str(row[0]), 
        buy_link=str(row[2]), 
        product_image_url=str(row[3]), 
        price=str(row[4]), 
        orginal_price=str(row[5]), 
        product_description=str(row[6]), 
        stock=str(row[7]), 
        sku=str(row[10]), 
       ) 
       _, created = Company.objects.get_or_create(
        company_name=str(row[1]), 
       ) 

       _, created = Manufacturer.objects.get_or_create(
        manufacturer_name=str(row[8]), 
       ) 

       _, created = Category.objects.get_or_create(
        category_name=str(row[9]), 
       ) 
     success = "Added to database" 
     context = {"success": success} 

    except csv.Error as e: 
     print(e) 
     context = {'error': e} 

    template = "products/add.html" 

    return render(request, template, context) 

Answer 1

は、私はあなたがする必要があると思います考えていたものの一例である：

def upload(request): 
    if not request.user.is_authenticated: 
     return redirect("home") 

    csv_path = os.path.dirname(os.path.abspath(__file__)) 
    try: 
     with open(csv_path + '/product.csv') as f: 
      reader = csv.reader(f) 
      for row in reader: 
       category_obj, created = Category.objects.get_or_create(
        category_name=str(row[9]), 
       ) 

       company_obj, created = Company.objects.get_or_create(
        company_name=str(row[1]), 
       ) 

       manufacturer_obj, created = Manufacturer.objects.get_or_create(
        manufacturer_name=str(row[8]), 
       ) 

       product_obj, created = Product.objects.get_or_create(
        product_name=str(row[0]), 
        company=company_obj, 
        category=category_obj, 
        manufacturer=manufacturer_obj, 
        buy_link=str(row[2]), 
        product_image_url=str(row[3]), 
        price=str(row[4]), 
        orginal_price=str(row[5]), 
        product_description=str(row[6]), 
        stock=str(row[7]), 
        sku=str(row[10]), 
       ) 

     success = "Added to database" 
     context = {"success": success} 

    except csv.Error as e: 
     print(e) 
     context = {'error': e} 

    template = "products/add.html" 

    return render(request, template, context)