[maplab-users] MapSession_RW not working

[Matt Doggett]

Good suggestion! I hoped you were on to something. I tried the hard-code
approach setting map_session_mode=1 in drawMainMap but now I get *worse*
results, now the application simply draws a blank...not even the default
map appears. The log.txt file shows successful operations: saveState()
and writeMapFile(), etc. The applet simply displays nothing.

  Is this a problem with the Rosa applet perhaps?

md


> -----Original Message-----
> From: Paul Spencer [mailto:pgs@magma.ca]
> Sent: Tuesday, May 13, 2003 9:00 AM
> To: Matt Doggett; sfournier@dmsolutions.ca
> Cc: maplab-users@dmsolutions.ca
> Subject: RE: [maplab-users] MapSession_RW not working
> 
> I think I see the problem.  drawmap.php can operate with the map
session
> stuff in either
> mode but it needs to know *which* mode it is in.  If you check the
> documentation in
> drawmap.php, you should see some comments about a URL parameter
> called "map_session_mode".  I believe it assumes MapSession_R if you
pass
> nothing or 0
> (map_session_mode=0) for this value, and MapSession_RW if you pass a 1
for
> this value
> (map_session_mode=1).
> 
> If drawmap.php is assuming MapSession_R and you are actually using
> MapSession_RW then you
> will only every see the original map file with no changes, which is
what
> you are
> experiencing.
> 
> The fix is to modify the drawMainMap to be aware of the difference
between
> MapSession_R
> and MapSession_RW.  I'm not sure what the best approach for this is,
but
> the short term
> hack would be to modify the URL generated here to append
> &map_session_mode=1 to the URL
> (I don't have the code in front of me, so it is possible this is the
wrong
> name and/or
> value, but check drawmap.php to see exactly what it says there).
> 
> Cheers,
> 
> Paul
> 
> --
> Paul Spencer
> Applications and Software Development
> DM Solutions Group Inc.
> http://www.dmsolutions.ca
> 
> 
> 
> On May 13, "Matt Doggett" <mdoggett@coas.oregonstate.edu> wrote:
> >
> > If that's the case then the application (as delivered by
DMSolutions) is
> > broke because that's exactly what I'm doing.  As best I can
determine,
> > the problem is in the drawMainMap function and/or the
> > wrapper/drawmap.php script. I've even tried modifying the URL (in
> > drawMainMap) passed to the drawmap.php script to explicitly use the
> > temporary mapfile (e.g. drawmap.php?gszMapName=$tmpMAPFILE) but
drawmap
> > will never render anything but the original .map file.
> >
> > Any other suggestions?
> >
> > matt
> >
> > > -----Original Message-----
> > > From: Sacha Fournier [mailto:sfournier@dmsolutions.ca]
> > > Sent: Tuesday, May 13, 2003 5:13 AM
> > > To: mdoggett@coas.oregonstate.edu
> > > Cc: maplab-users@dmsolutions.ca
> > > Subject: Re: [maplab-users] MapSession_RW not working
> > >
> > > Hi Matt,
> > >
> > > Theorictly you only have to change your object to RW and set the
temp
> > > directory of your object by calling
> > > $obj->setTempDir([tmp_dir_of_your_maps]);
> > >
> > > Sacha
> > >
> > > Matt Doggett wrote:
> > > > I am trying to customize my GmapFactory application to generate
a
> > > > dynamic mapfile based on user inputs to an HTML form.
> > > > After extensive trial/error I finally have a feel for how the
Gmap
> > > > application works and this led me to declaring a MapSession_RW
> > object
> > > > for $oMapSession (rather than the default MapSession_R object
> > > > instantiated in globprefs.php).
> > > > However, when I do this, the map display will not update at
> > all...zoom,
> > > > pan, selecting different layers, etc are all ignored and only
the
> > > > original (default) map is displayed in the Rosa applet.
> > > > If I look in $gszTmpMapPath I find the temporary mapfiles that
are
> > > > created, and these mapfiles do reflect the changes made by the
user.
> > > > My question then is what additional change should I make so that
the
> > > > rosa applet gets the correct (modified) mapfile to display?
> > > > This may be related to using map_session_mode=1 but I can't seem
to
> > get
> > > > that to work either.
> > > > Anyone else been down this road???
> > > >
> > > > Md
> > > >
> > > > (RedHat8.0, Apache2.0, Mapserver 3.6.4, Php4.2.3)
> > > >
> > > > Matt Doggett
> > > > Spatial Climate Analysis Service
> > > > Oregon State University
> > > > 316 Strand Ag Hall
> > > > Corvallis, OR 97331
> > > > (541)737-9153
> > > > mdoggett@coas.oregonstate.edu
> > > >
> > > >
> > > >
> > > > _______________________________________________
> > > > Maplab-users mailing list
> > > > Maplab-users@dmsolutions.ca
> > > > <a href='http://lists.dmsolutions.ca/mailman/listinfo/maplab-
> users'>http://lists.dmsolutions.ca/mailman/listinfo/maplab-users</a>
> > > >
> > >
> > > --
> > > Sacha Fournier
> > > Applications Developer
> > > DM Solutions Group
> > > sfournier@dmsolutions.ca
> > > tel: 418.696.5056
> > > fax: 418.696.5056
> > >
> > > www.dmsolutions.ca
> > > --
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