Geodjango OGR失败的问题 - GDAL例外

Question

我已经建立了django中的模型，但是一旦添加数据并单击保存我的应用程序崩溃

我得到GDAL异常 - OGR失败，它在崩溃页面中突出显示“{{field.field}}”作为错误的原因。这里的屏幕截图Admin view for adding data to the model

i get this right away after clicking save

有谁经历过这个？任何帮助？

谢谢

更新：我收到此错误：

[12/Apr/2019 14:38:46] "GET /static/admin/img/gis/move_vertex_off.svg HTTP/1.1"
200 1129
[12/Apr/2019 14:39:14] "GET /static/admin/img/gis/move_vertex_on.svg HTTP/1.1" 2
00 1129
GDAL_ERROR 4: b'Unable to open EPSG support file gcs.csv.\nTry setting the GDAL_
DATA environment variable to point to the\ndirectory containing EPSG csv files.'

Internal Server Error: /admin/trial2/shop/add/
Traceback (most recent call last):
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\core\
handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\core\
handlers\base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\core\
handlers\base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\admin\options.py", line 606, in wrapper
    return self.admin_site.admin_view(view)(*args, **kwargs)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\utils
\decorators.py", line 142, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\views
\decorators\cache.py", line 44, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\admin\sites.py", line 223, in inner
    return view(request, *args, **kwargs)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\admin\options.py", line 1634, in add_view
    return self.changeform_view(request, None, form_url, extra_context)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\utils
\decorators.py", line 45, in _wrapper
    return bound_method(*args, **kwargs)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\utils
\decorators.py", line 142, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\admin\options.py", line 1522, in changeform_view
    return self._changeform_view(request, object_id, form_url, extra_context)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\admin\options.py", line 1554, in _changeform_view
    form_validated = form.is_valid()
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\forms
\forms.py", line 185, in is_valid
    return self.is_bound and not self.errors
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\forms
\forms.py", line 180, in errors
    self.full_clean()
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\forms
\forms.py", line 381, in full_clean
    self._clean_fields()
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\forms
\forms.py", line 399, in _clean_fields
    value = field.clean(value)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\gis\forms\fields.py", line 79, in clean
    geom.transform(self.srid)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\gis\geos\geometry.py", line 471, in transform
    g = gdal.OGRGeometry(self._ogr_ptr(), srid)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\gis\gdal\geometries.py", line 115, in __init__
    self.srs = srs
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\gis\gdal\geometries.py", line 284, in _set_srs
    sr = SpatialReference(srs)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\gis\gdal\srs.py", line 92, in __init__
    self.import_epsg(srs_input)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\gis\gdal\srs.py", line 277, in import_epsg
    capi.from_epsg(self.ptr, epsg)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\gis\gdal\prototypes\errcheck.py", line 118, in check_errcode
    check_err(result, cpl=cpl)
  File "C:\Users\lgcge\Documents\copypostgis\venv\lib\site-packages\django\contr
ib\gis\gdal\error.py", line 59, in check_err
    raise e(msg)
django.contrib.gis.gdal.error.GDALException: OGR failure.
[12/Apr/2019 14:39:45] "POST /admin/trial2/shop/add/ HTTP/1.1" 500 160518

admin.朋友 :

from django import forms
from django.contrib.gis import admin

from django.contrib.gis.db import models



from django.contrib.gis.admin import OSMGeoAdmin
from .models import Shop

@admin.register(Shop)
class ShopAdmin(OSMGeoAdmin):
    list_display = ('name', 'location')

model.朋友

from __future__ import unicode_literals

from django.contrib.gis.db import models
from django.contrib.gis.geos import Point


class Shop(models.Model):
    name = models.CharField(max_length=100)
    location = models.PointField()
    address = models.CharField(max_length=100)
    city = models.CharField(max_length=50)

Answer 1

if os.name == 'nt':
    import platform
    OSGEO4W = r"C:\OSGeo4W"
    if '64' in platform.architecture()[0]:
        OSGEO4W += "64"
    assert os.path.isdir(OSGEO4W), "Directory does not exist: " + OSGEO4W
    os.environ['OSGEO4W_ROOT'] = OSGEO4W
    os.environ['GDAL_DATA'] = "C:\Program Files\GDAL\gdal-data" #OSGEO4W + r"\share\gdal"
    os.environ['PROJ_LIB'] = OSGEO4W + r"\share\proj"
    os.environ['PATH'] = OSGEO4W + r"\bin;" + os.environ['PATH']

问题是这段代码强制执行geodjango中定义的路径，所以即使你设置了系统变量，这个代码仍然会占据系统变量的主导地位。

如果有人对OGR有疑问，请不要犹豫