#11785: Invalid error reporting when importing MapInfo layer with Unknown type
----------------------+-----------------------------------------------------
Reporter: esizikov | Owner: nobody
Status: new | Milestone:
Component: GIS | Version: 1.1
Keywords: | Stage: Unreviewed
Has_patch: 0 |
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When going to import a spatial data from an !MapInfo file I've stacked
with an error message like following:
{{{
#!python
...
File "../django/contrib/gis/utils/layermapping.py", line 293, in
check_layer
raise LayerMapError('Invalid mapping geometry; model has %s, feature
has %s.' % (fld_name, ltype))
django.contrib.gis.utils.layermapping.LayerMapError: Invalid mapping
geometry; model has PolygonField, feature has Polygon.
}}}
It took about 2 hours to figure out what could be wrong here, as the error
message looks like a nonsense (Polygon != Polygon)
Looking through the code I've found a possible reason of such a
misunderstanding:
{{{
#!diff
--- layermapping.py.orig 2009-08-26 09:36:12.438952459 +0700
+++ layermapping.py 2009-08-26 09:36:21.979827357 +0700
@@ -290,7 +290,7 @@
# Making sure that the OGR Layer's Geometry is
compatible.
ltype = self.layer.geom_type
if not (gtype == ltype or self.make_multi(ltype,
model_field)):
- raise LayerMapError('Invalid mapping geometry; model
has %s, feature has %s.' % (fld_name, gtype))
+ raise LayerMapError('Invalid mapping geometry; model
has %s, feature has %s.' % (fld_name, ltype))
# Setting the `geom_field` attribute w/the name of the
model field
# that is a Geometry.
}}}
After that been done I've got a meaningful error like this one:
{{{
#!python
File "../django/contrib/gis/utils/layermapping.py", line 293, in
check_layer
raise LayerMapError('Invalid mapping geometry; model has %s, feature
has %s.' % (fld_name, ltype))
django.contrib.gis.utils.layermapping.LayerMapError: Invalid mapping
geometry; model has PolygonField, feature has Unknown.
}}}
It became clear to me that LayerMapping complains to import from a
!MapInfo layer with Unknown geometry type. That's what I was looking for 2
hours!
However, that "... ''model has PolygonField, feature has Unknown''."
doesn't looks polished too. Could someone provide a better fix?
--
Ticket URL: <http://code.djangoproject.com/ticket/11785>
Django <http://code.djangoproject.com/>
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