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from django.contrib.admin import ModelAdmin
from django.contrib.gis.db import models
from django.contrib.gis.forms import OSMWidget
class GeoModelAdminMixin:
gis_widget = OSMWidget
gis_widget_kwargs = {}
def formfield_for_dbfield(self, db_field, request, **kwargs):
if isinstance(db_field, models.GeometryField) and (
db_field.dim < 3 or self.gis_widget.supports_3d
):
kwargs["widget"] = self.gis_widget(**self.gis_widget_kwargs)
return db_field.formfield(**kwargs)
else:
return super().formfield_for_dbfield(db_field, request, **kwargs)
class GISModelAdmin(GeoModelAdminMixin, ModelAdmin):
pass
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