Question

class BuildingAddress(models.Model):
  id = models.CharField(max_length=12,primary_key = True)
  address = models.CharField(max_length=30)
  city = models.CharField(max_length=30)
  zip = models.CharField(max_length=10)
  state = models.CharField(max_length=2)
  primpgon = models.BigIntegerField()
  numpgons = models.BigIntegerField()
  x = models.FloatField()
  y = models.FloatField()
  censusbloc = models.CharField(max_length=15)
  objectid = models.BigIntegerField()
  geom = models.MultiPolygonField(srid=4326)

然后我尝试将我的形状文件导入此模型。我写了下面的剧本。

import os
from django.contrib.gis.utils import LayerMapping
from .models import BuildingAddress

no_address_mapping = {
  'id' : 'ID',
  'address' : 'Address',
  'city' : 'City',
  'zip' : 'ZIP',
  'state' : 'State',
  'primpgon' : 'PrimPgon',
  'numpgons' : 'NumPgons',
  'x' : 'X',
  'y' : 'Y',
  'censusbloc' : 'CensusBloc',
  'objectid' : 'ObjectID',
}
no_address_shp = os.path.abspath(
  os.path.join(
     os.path.dirname(__file__),
    'building/WestDV_CA_BF_NoAddress_region.shp'))

def run(verbose=True):
  lm = LayerMapping(
    BuildingAddress, no_address_shp, no_address_mapping,
    transform=False, encoding='iso-8859-1')
 lm.save(strict=True, verbose=verbose)

然后我在shell中运行这个文件。

当我尝试运行此文件时，我收到django.core.exceptions.FieldDoesNotExist: BuildingAddress has no field named 'False'错误。我不明白为什么会发生这种错误。我没有创建任何字段名称为False。但它会抛出Field名称false不存在。

Answer 1

您没有将映射添加到geom字段中。假设您要在其中映射一些多面几何，则映射字典应如下所示：

no_address_mapping = {
  'id' : 'ID',
  'address' : 'Address',
  'city' : 'City',
  'zip' : 'ZIP',
  'state' : 'State',
  'primpgon' : 'PrimPgon',
  'numpgons' : 'NumPgons',
  'x' : 'X',
  'y' : 'Y',
  'censusbloc' : 'CensusBloc',
  'objectid' : 'ObjectID',
  'geom': 'MULTIPOLYGON'
}

django.core.exceptions.FieldDoesNotExist：BuildingAddress没有名为＆＃39; False＆＃39;

1 个答案: