[Community] Unable to load a datastore

[Sean Gillies]

Vaishal,

Will you try running ogrinfo (a GDAL/OGR utility program in FWTools)  
against world_borders.ovf? This could help us diagnose the problem.

Sean

On Dec 1, 2005, at 3:30 PM, Vaishal Sheth wrote:

> Thanks all for the replies. Here's something interesting.
>
> Sean, I tried your suggestion and changed the relativeToVRT to 1  
> and provided the relative name for the shapefile but no luck.
>
> I have another shapefile in the same folder called  
> state_bounds.shp.  I can't create the datastore using the ovf file  
> (configured similar to world_borders.ovf). However, when I try  
> Josh's suggestion to access the shapefile directly, I can access  
> it.  I cannot access the world_borders in this manner though.  The  
> only thing that's different between the two files on the filesystem  
> is that the state_bounds has a prj file associated. Though I don't  
> think it should matter.
>
> Any ideas?
>
> On 12/1/05, Sean Gillies <sgillies at frii.com> wrote: If  
> world_borders.shp and world_border.ovf are in the same folder, the
> ovf file should look like this:
>
> <OGRVRTDataSource>
>      <OGRVRTLayer name="world_borders">
>          <SrcDataSource relativeToVRT="1">world_borders.shp</
> SrcDataSource>
>              <SrcLayer>world_borders</SrcLayer>
>          <LayerSRS>EPSG:4326</LayerSRS>
>      </OGRVRTLayer>
> </OGRVRTDataSource>
>
> I believe your original error is most likely due to a problem with
> the SrcDataSource element.
>
> Sean
>
> On Dec 1, 2005, at 2:56 PM, Vaishal Sheth wrote:
>
> > When I do that, I get the error "Data store is improperly
> > configured: 'NoneType' object has no attribute 'ExportToWkt'" Does
> > that imply that it can at least read the shapefile and hence the
> > issue is not with the permissions? because both world_borders.shp
> > and .ovf reside in the same folder.
> >
> >
> > On 12/1/05, Josh Livni < josh at livniconsulting.com> wrote: Try
> > replace in the zco datastore with world_borders.shp (or whatever the
> > ovf refers to).
> >
> > Does that help?
> >
> >   -Josh
> >
> > Vaishal Sheth wrote:
> > > Kai,
> > >
> > > Thanks for the quick response.  Yes, I can access the file and  
> print
> > > it's contents from the python interpreter. So, any ideas where  
> else
> > > the error might be?
> > >
> > > Vaishal
> > >
> > > On 12/1/05, *Kai Hänninen* <kai.hanninen at mbconcert.fi
> > > <mailto: kai.hanninen at mbconcert.fi>> wrote:
> > >
> > >     to, 2005-12-01 kello 15:45 -0500, Vaishal Sheth kirjoitti:
> > >     > Hello list,
> > >     >
> > >     > A while ago, I succeeded in installing PrimaGIS 0.4 with
> > PCL 0.9 and
> > >     > ZCO 0.6 along with a lot of help from the community.  Now  
> I am
> > >     trying
> > >     > to reproduce the installation on another machine and am
> > strangely
> > >     > getting a datastore error.  The error log shows
> > >     >
> > >     > Traceback (most recent call last):
> > >     >   File "C:\Program Files\Plone 2\Zope\lib\python\ZPublisher
> > >     > \Publish.py", line 101, in publish
> > >     >     request, bind=1)
> > >     >   File "C:\Program Files\Plone 2\Zope\lib\python\ZPublisher
> > >     > \mapply.py", line 88, in mapply
> > >     >     if debug is not None: return debug(object,args,context)
> > >     >   File "C:\Program Files\Plone 2\Zope\lib\python\ZPublisher
> > >     > \Publish.py", line 39, in call_object
> > >     >     result=apply(object,args) # Type s<cr> to step into
> > published
> > >     > object.
> > >     >   File "C:\Program Files\Plone
> > >     2\Data\Products\PrimaGIS\PrimaGIS.py",
> > >     > line 171, in view
> > >     >     bgcolor = maprenderer.getProperty ('pg-bgcolor',
> > '#ffffff'))
> > >     >   File "C:\Program Files\Plone 2\Data\Products\ZCO
> > \MapRenderer.py",
> > >     > line 162, in render
> > >     >     layering.append((layer.layer(), style.style ()))
> > >     >   File "C:\Program Files\Plone 2\Data\Products\ZCO 
> \Layer.py",
> > >     line 75,
> > >     > in layer
> > >     >     store = self.getDataStore ().datastore()
> > >     >   File "C:\Program Files\Plone
> > >     2\Data\Products\ZCO\DataStore.py", line
> > >     > 130, in datastore
> > >     >     store = disk.DiskFeatureStore(self.path)
> > >     >   File "C:\Program Files\Plone
> > >     2\Python\lib\site-packages\cartography
> > >     > \data\disk.py", line 62, in __init__
> > >     >     raise Exception, "Cannot access %s" % (path)
> > >     > Exception: Cannot access c:\gis\world_borders.ovf
> > >     >
> > >     > I have read/write permissions to the c:\gis folder.  Any
> > ideas?
> > >
> > >     Does running the following in the same python interpreter
> > that your
> > >     Plone system is using work?
> > >
> > >     >>> print open("c:\gis\world_borders.ovf").read()
> > >
> > >     It should print out the contents of the file. If it does,
> > than at
> > >     least
> > >     your python is able to access the file and the error must be
> > somewhere
> > >     else. Otherwise double-check your access rights and the path.
> > >
> > >
> > >     cheers,
> > >     Kai
> > >
> > >     --
> > >     Kai Hänninen                  mobile:+358-44-541 9567
> > >     Software engineer             www.mbconcert.fi
> > >     <http://www.mbconcert.fi>
> > >     MB Concert Ky                 kai.hanninen at mbconcert.fi
> > >     <mailto:kai.hanninen at mbconcert.fi>
> > >
> > >
> > >
> > >
> >  
> ----------------------------------------------------------------------
> > --
> > >
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> >
> >
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>
> ---
> Sean Gillies
> sgillies at frii dot com
> http://zcologia.com/news
>
>
>
>

---
Sean Gillies
sgillies at frii dot com
http://zcologia.com/news