[mapserver-users] MapScript resultsGetShape confusion [solved!]

[Alan Boudreault]

Steve and I are in discussion to solve this issue. If you have other useful 
information or want to follow the bug processing, here's the trac ticket:

http://trac.osgeo.org/mapserver/ticket/3467

regards,
Alan

On June 3, 2010 08:57:27 am Worth Lutz wrote:
> Yes, adding the tileindex argument to the resultsGetShape call in PHP
> mapscript seems to have solved my problem with moving my application from
> MapServer 5.6.1 to 5.6.3.
> 
> Worth
> 
> -----Original Message-----
> From: mapserver-users-bounces at lists.osgeo.org
> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Worth Lutz
> Sent: Wednesday, June 02, 2010 8:12 PM
> To: 'Christian Jauvin'; 'Daniel Morissette'
> Cc: mapserver-users at lists.osgeo.org
> Subject: RE: [mapserver-users] MapScript resultsGetShape confusion
>  [solved!]
> 
> This may be the problem I had when I tried to update to 5.6.3. from 5.6.1.
> 
> I'm in the middle of a project and did not have time to figure out what was
> causing the problem.  The only change was the change to the MapServer
> version so I quickly reverted back.  I'm using PHP Mapscript.  I'll see if
>  I can find the time to check to see if this is the problem I was having.
> 
> Worth
> 
> -----Original Message-----
> From: mapserver-users-bounces at lists.osgeo.org
> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Christian
> Jauvin
> Sent: Wednesday, June 02, 2010 11:18 AM
> To: Daniel Morissette
> Cc: mapserver-users at lists.osgeo.org
> Subject: Re: [mapserver-users] MapScript resultsGetShape confusion
>  [solved!]
> 
> Ok.. so with a lot of fiddling around (and with inspiration from a
> Frank Warmerdam's testing script) I've been able to find the cause of
> the problem, as well as its solution: with a PostGIS connected layer,
> a call to resultsGetShape *has* to include the third parameter,
> "tileindex":
> 
> resultsGetShape(shp, res.shapeindex) --> hangs MS 5.6.3
> resultsGetShape(shp, res.shapeindex, res.tileindex) --> works great!
> 
> I don't know if it's really a bug, but it contradicts the
> documentation, in which the tileindex argument is optional, and it
> wasn't behaving like that (to my knowledge) with MS in [5.6.0, 5.6.2].
> 
> By the way, an initial observation I made was wrong: it also affects
> the PHP version, and the workaround is the same.
> 
> Best regards,
> 
> Christian
> 
> 
> On Tue, Jun 1, 2010 at 5:02 PM, Daniel Morissette
> 
> <dmorissette at mapgears.com> wrote:
> > Christian Jauvin wrote:
> >> I did what you suggested, and added:
> >>
> >> CONFIG "MS_ERRORFILE" "<error file>"
> >> CONFIG "CPL_DEBUG" "ON"
> >> DEBUG 5
> >
> > Did you also include DEBUG 5 inside the POSTGIS layer itself?
> >
> >> to my mapfile, and performed my query again. It generated a very long
> >> file (200K+ lines!) with only two types of line:
> >>
> >> [Tue Jun  1 14:36:01 2010].765230 getSymbol(): Symbol definition
> >> error. Parsing error near (null):(line 208)
> >> [...]
> >> [Tue Jun  1 14:36:01 2010].777963 msPostGISLayerResultsGetShape called
> >> for record = 338
> >> [...]
> >
> > 200k times the same message sounds like an infinite loop of some sort.
> >
> > Perhaps look at the first few lines of debug/error messages. There may be
> 
> a
> 
> > different message that would have been output *before* entering the
> 
> infinite
> 
> > loop and that could give a hint about what is happening. Just a guess...
> > can't do much more from here.
> >
> > What is the last version that worked fine? 5.6.2?
> >
> > Daniel
> > --
> > Daniel Morissette
> > http://www.mapgears.com/
> > _______________________________________________
> > mapserver-users mailing list
> > mapserver-users at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/mapserver-users
> 
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-- 
Alan Boudreault
Mapgears
http://www.mapgears.com