#9448: segfault: django.contrib.gis.gdal.DataSource sub-objects not holding
references to parents
-------------------------------------------------+--------------------------
Reporter: [EMAIL PROTECTED] | Owner: jbronn
Status: assigned | Milestone: post-1.0
Component: GIS | Version: 1.0
Resolution: | Keywords:
Stage: Accepted | Has_patch: 1
Needs_docs: 0 | Needs_tests: 0
Needs_better_patch: 0 |
-------------------------------------------------+--------------------------
Changes (by jbronn):
* status: new => assigned
* has_patch: 0 => 1
Comment:
Attached is a patch with tests that keeps a reference of the `DataSource`
with each `Layer`; see if it works for you. Moreover, there doesn't
appear to be a problem with OGR features:
{{{
def get_shp_feature(shp_file):
ds = DataSource(shp_file)
lyr = ds[0]
return lyr[0]
feat = get_shp_feature('/path/to/foo.shp')
print feat.geom
print feat.fields
}}}
As the above code demonstrates, accessing a `Feature` still works even
though the reference to the `DataSource` is no longer active. Thus, the
`DataSource`->`Layer` problem is fixed (with the patch) and
`Layer`->`Feature` references appear fine without further patching.
However, I still want to investigate more on ''why'' the `Feature`
references are OK so I can be positive that its not required to keep a
`DataSource` reference on each `Feature` as well.
--
Ticket URL: <http://code.djangoproject.com/ticket/9448#comment:3>
Django <http://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/django-updates?hl=en
-~----------~----~----~----~------~----~------~--~---
