导入多对多关系（Django）

我的代码如下进口数据，但只适用于一个关系到模型（而不是两个，因为我已经问它下面做导入它两次 - 在那里我写的“猫= ...”）

在我下面的例子中，我想要它从列4 & 11.导入猫（类别）我的代码只适用于一个类别的模型（不是两个）。

我怎样才能将它应用到模型的两个领域？ CSV的即时通讯使用Python 2.7

import csv 

l = list(csv.reader(open('test_data.csv', 'rb'))) 

Gender_CHOICES = { 
    'Male': 1, 
    'Female': 2, 
    'Unisex': 3, 
} 

Stock_CHOICES = { 
    'in stock': 1, 
    'low stock': 2, 
    'out of stock': 3, 
    'discountinued': 4 
} 

for i in l[1:]: 
     cat = m.Category.objects.get_or_create(category_name = i[4],[11])[0] 
     prod = m.Product(
      name = i[0], 
      link = i[1], 
      description = i[6], 
      brand = i[7], 
      colour = i[10], 
      gender = Gender_CHOICES[i[8]] if i[8] in Gender_CHOICES else 3, 
      store = m.Store.objects.get_or_create(store_name = i[2])[0] 
      ) 
     prod.save() 
     var = m.Variation(
      product = prod, 
      variation = "default" 
      ) 
     var.save() 
     img = m.Image(
      variation = var, 
      image = i[5] 
      ) 
     img.save() 
     size = m.Size(
      variation = var 
      ) 
     size.save() 
     price = m.Price(
      variation = var, 
      price = float(i[3]) 
      ) 
     price.save() 
     stock = m.Stock(
      size = size, 
      stock = Stock_CHOICES[i[9]] if i[9] in Stock_CHOICES else 4 
      ) 
     stock.save() 
     prod.category.add(cat)

样品：

prod_name,prod_link,store_name,prod_price,category,image_default,prod_description,prod_brand,gender,prod_stock,category1 
Bliss Firm Baby Firm Lifting & Volumising Serum 30ml - Serum,http://click.linksynergy.com/link?id=dnw*50nuNL8&offerid=287549.2554637&type=15&murl=http%3A%2F%2Fwww.asos.com%2Fau%2FBliss%2FBliss-Firm-Baby-Firm-Lifting-Volumising-Serum-30ml%2FProd%2Fpgeproduct.aspx%3Fiid%3D3936070%26istCompanyId%3Df448b47d-6b90-4b9b-a52d-eb6058c99b1c%26istItemId%3Dwxqqpxxmi%26istBid%3Dt,Asos,117,Skin Care Body Creams & Moisturisers,http://images.asos-media.com/inv/media/0/7/0/6/3936070/serum/image1xxl.jpg,Firm Baby Firm Lifting & Volumising Serum by Bliss Designed to boost collagen and elasticity Concentrated formula with a water-free aloe base Aims to plump skin from the inside out,Bliss,Female, 
Yes To Carrots Day Cream 50ml - Carrots,http://click.linksynergy.com/link?id=dnw*50nuNL8&offerid=287549.2825448&type=15&murl=http%3A%2F%2Fwww.asos.com%2Fau%2FYES-TO%2FYes-To-Carrots-Day-Cream-50ml%2FProd%2Fpgeproduct.aspx%3Fiid%3D4254119%26istCompanyId%3Df448b47d-6b90-4b9b-a52d-eb6058c99b1c%26istItemId%3Dwiqwwawpm%26istBid%3Dt,Asos,21,Skin Care Body Creams & Moisturisers,http://images.asos-media.com/inv/media/9/1/1/4/4254119/carrots/image1xxl.jpg,Day cream by Yes To Carrots 95% natural ingredients Including carrots and sweet almond oil Rich moisturising formula Naturally nourishes to promote softer skin Suitable for normal to dry skin types Product size: 50ml,YES TO,Female,Belts

来源

2015-11-08 Yian

您发布的代码不完整...您能向我们展示如何保存产品和类别模型吗？ – solarissmoke

另外，显示一部分CSV文件。 – SaeX

我已经发布了完整的代码和我的CSV文件的一部分 – Yian

我相信，这个问题是创建对象。我认为以下是您正在寻找的内容：

.... 
.... 
for i in l[1:]: 
     cat_1 = m.Category.objects.get_or_create(category_name = i[4]) 
     cat_2 = m.Category.objects.get_or_create(category_name = i[11]) 
.... 
.... 
prod.category.add(cat_1) 
prod.category.add(cat_2)

来源

2015-11-08 21:50:59

我还想在查询集中执行此操作（因此我可以使用管理员的下拉菜单将预设值应用于模式）。我试过这个，但它只适用于外键：'def Category（self，request，queryset）： queryset.update（tag = Tag.objects.get（name__iexact ='Shoes'），updated = timezone.now ））' – Yian

导入多对多关系（Django）

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