Question

我想把列表数据放到City＆amp; Prefecture＆amp; Area＆amp; User模型中？我写了

book3 = xlrd.open_workbook('./data/excel1.xlsx')
sheet3 = book3.sheet_by_index(0)

data_dict = OrderedDict()
tag_list = sheet3.row_values(0)
tag_list1_user_id = tag_list[9]
fourrows = []
for row_index in range(7, sheet3.nrows):
    row = sheet3.row_values(row_index)
    if len(fourrows) == 5:
        fourrows=[]
    fourrows.append(row)
    fourrows_transpose = list(map(list, zip(*fourrows)))
    print(fourrows_transpose)
    val3 = sheet3.cell_value(rowx=0, colx=9)
    user3 = Companyransaction.objects.filter(user_id=val3)
    if user3:
       user3.update(XXXXX)

models.py是

class Area(models.Model):
    name = models.CharField(max_length=20, verbose_name='エリア名', null=True)
class User(models.Model):
    user_id = models.CharField(max_length=200,null=True)
    area = models.ForeignKey('Area',null=True, blank=True)

class Prefecture(models.Model):
    name = models.CharField(max_length=20, verbose_name='prefecture')
    area = models.ForeignKey('Area', null=True, blank=True)

class City(models.Model):
    name = models.CharField(max_length=20, verbose_name='city')
    prefecture = models.ForeignKey('Prefecture', null=True, blank=True)

class Price(models.Model):
    name = models.CharField(max_length=20, verbose_name='price')
    PRICE_RANGE = (
        ('a', 'u500'),
        ('b', '500-1000'),
        ('c', 'u1000'),
    )
    price_range = models.CharField(max_length=1, choices=PRICE_RANGE)
    city = models.ForeignKey('City', null=True, blank=True)

在print（fourrows_transpose）中，显示

[['America', '', '', '', ''], ['', '', 'u1000', '500～1000', 'd500'], ['NY', 'City A', '×', '×', '×'], ['', 'City B', '×', '×', '×'], ['', 'City C', '×', '×', '×'], ['', 'City D', '×', '×', '×'], ['', 'City E', '×', '×', '×']]

我想把'美国'放到县的area和城市A到城市的name和×到Price的名字。所以，我想把这些数据tp user3.update（XXXXX）。我应该写什么给XXX？我该怎么做？

Answer 1

如果您有“地区”，“城市”和“价格”的现有实例，则必须拨打每个实例并单独更新。

示例（假设用户和地区按地区属性关联）：

pref = Prefecture.objects.get(area=user3.area)
city = City.objects.get(prefecture=pref)
price = Price.objects.get(city=city)

pref.name = "whatever you want"
pref.save()

city.name = "whatever you want"
city.save()

price.name = "whatever you want"
price.save()

如果您没有上述模型的现有实例，那么您必须为每个模型创建一个实例，并将它们相互链接。

示例（假设用户和地区按地区属性关联）：

pref = Prefecture.objects.create(name="yourname", area=user3.area)
city = City.objects.create(name="yourname", prefecture=pref)
price = Price.objects.create(name="yourname", city=city)

希望这有帮助！

如何将每个模型城市和地区以及区域和用户？

1 个答案: