如何手动关联两个模型？从 excel 电子表格中提取的数据

Question

我正在尝试创建一个网络表单，用户可以在其中输入几条信息并上传一个 excel 电子表格。在 post 期间（在我的 views.py 中）我试图打开文件并将该文件中的信息保存到我的模型中。

另一件事是两个模型关联在一起。任何人都知道 views.py 的外观或这是否可能？

models.py

class service_order(models.Model):
    r_name = models.CharField("Requestor Name", max_length=25)
    r_email = models.CharField("Requestor Email Contact", max_length=25)

class specifications(models.Model):
    service_order = models.ForeignKey(service_order)
    controller_type = models.CharField("Controller", max_length=25)
    hostname = models.CharField("Hostname", max_length=25)

excel 文件很简单：

"controller", "hostname", "domain", "ip_address"... etc
"hp server", "sample hostname", "google.com "1.2.3.4"... etc
"hp server", "sample hostname", "google.com "1.2.3.4"... etc
"hp server", "sample hostname", "google.com "1.2.3.4"... etc

我正计划将 xlrd 合并到我的 django 表单和视图中。这是我用来阅读 excel 电子表格的一些初步代码：

import xlrd 

datafile = "sample_survey.xlsx"

def parse_file(datafile):
    workbook = xlrd.open_workbook(datafile)
    sheet = workbook.sheet_by_index(0)

    START_ROW = 35
    END_ROW   = 60

    myList = []

    for row in range(START_ROW,END_ROW):

        values = (sheet.row_values(row, start_colx=1, end_colx=20))

        headers = ["controller", "hostname", "domain", "ip_address", "netmask", "gateway", "dns1", "dns2", "ntp1", "ntp2", 
                   "order_name", "order_phone", "order_email", 
                   "shipping_adress", "shipping_city", "shipping_region", "shipping_region_code", "shipping_country", "shipping_diff"]

        dictionary = dict(zip(headers, values))

        myList.append(dictionary)

    for row in myList:
        print row

data = parse_file(datafile)

Answer 1

如果每一行代表不同的顺序，那么代码将很简单：

for row in myList:
    order = service_order.objects.create(r_name=row['order_name'],
                                         r_email=row['order_email'])
    specifications.objects.create(service_order=order,
                                  controller_type=row['controller'],
                                  hostname=row['hostname'])

另请注意，在 parse_file() 中您必须接受文件内容而不是文件名：

def parse_file(file_contents):
    workbook = xlrd.open_workbook(file_contents=file_contents)
    ...

def my_view(request):
    data_file = request.FILES['data_file']
    parse_file(data_file.read())
    ...

如何手动关联两个模型？从 excel 电子表格中提取的数据

How to manually associate two models? Data pulled from excel spreadsheet

django

django-forms

foreign-keys

django-views