導入多對多關係（Django）

我的代碼如下進口數據，但只適用於一個關係到模型（而不是兩個，因爲我已經問它下面做導入它兩次 - 在那裏我寫的「貓= ...」）

在我下面的例子中，我想要它從列4 & 11.導入貓（類別）我的代碼只適用於一個類別的模型（不是兩個）。

我怎樣才能將它應用到模型的兩個領域？ CSV的即時通訊使用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)

樣品：

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

來源

2015-11-08 Yian

您發佈的代碼不完整...您能向我們展示如何保存產品和類別模型嗎？ – solarissmoke

另外，顯示一部分CSV文件。 – SaeX

我已經發布了完整的代碼和我的CSV文件的一部分 – Yian

我相信，這個問題是創建對象。我認爲以下是您正在尋找的內容：

.... 
.... 
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)

來源

2015-11-08 21:50:59

我還想在查詢集中執行此操作（因此我可以使用管理員的下拉菜單將預設值應用於模式）。我試過這個，但它只適用於外鍵：'def Category（self，request，queryset）： queryset.update（tag = Tag.objects.get（name__iexact ='Shoes'），updated = timezone.now ））' – Yian

導入多對多關係（Django）

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