如何在 Django 的数据库中保存 CSV？ [关闭]

Question

我制定了一个下载 CSV 文件的逻辑，但现在我还想将其保存在数据库中。

我试过用文件名保存，但是不行

def index(request):
if request.method == "POST":

    url  = request.POST.get('url', '')
    username = request.POST.get('username','')


    r = requests.get(url)           
    soup = BeautifulSoup(r.content, features="lxml")    
    p_name = soup.find_all("h2",attrs={"class": "a-size-mini"})
    p_price = soup.find_all("span",attrs={"class": "a-price-whole"})

    response = HttpResponse(content_type='text/csv')
    response['Content-Disposition'] = 'attachment; filename="product_file.csv"'

    for name,price in zip(p_name,p_price):
        writer = csv.writer(response)
        writer.writerow([name.text, price.text])

    return response
    csv_file =  csv.writer(response)   
    csv_save =  csv_save(url=url,username=username,csv_file=csv_file)
    csv_save.save

return render(request, 'index.html')

Answer 1

假设 csv 文件包含：用户名、标题、兴趣。您可以使用具有与 models.py 文件中相同字段的模型将数据保存在数据库中：

class FromCsv(models.Model):    
    username = models.CharField(max_length=200, null=True)
    title = models.CharField(max_length=200, null=True)
    interests = models.CharField(max_length=200, null=True)

然后，您需要遍历 csv 文件的行，将其数据存储在变量中，并使用您的视图保存对象，方法是为每次迭代执行此操作：

FromCsv.objects.create(username=csvusername, title=csvtitle, interests=csvinterests)

由于您似乎想要实际保存 csv 文件，因此您可以在模型上使用 FileField 并执行以下操作：

FromCsv.objects.create(url=url, username=username, csv_file=File(csv_file))

Answer 2

    csv_file = csv.writer(response)
    # the object created by calling csv_save can't have the same variable name
    # so we'll call it csv_save_obj to denote it's an instance of csv_save
    csv_save_obj = csv_save(url=url,username=username,csv_file=csv_file)
    # remember to add parenthesis when calling save
    csv_save_obj.save()

    # this needs to be at the end, because code after it won't execute
    return response