[Geomoose-users] query.php problem

[Brian Fischer]

Jim or Dan, do you think this should be a patch that goes in?  Seems like it to me.

Brian Fischer, CFM
Principal | GIS Project Manager 
Houston Engineering, Inc.
O 763.493.4522 | D 763.493.6664 | M 763.229.2734

-----Original Message-----
From: geomoose-users-bounces at lists.osgeo.org [mailto:geomoose-users-bounces at lists.osgeo.org] On Behalf Of Matej Mailing
Sent: Wednesday, October 17, 2012 4:58 AM
To: Jim Klassen
Cc: GeoMOOSE Users List
Subject: Re: [Geomoose-users] query.php problem

I have changed it this way and it works when there are no results and when there are results, without the need for the nextShape() call:

                                        for($i = 0; $i < $queryLayer->getNumResults(); $i++) {
                                                $shape = $queryLayer->getShape($queryLayer->getResult($i));
                                                if($projection) {

$shape->project($projection, $LATLONG_PROJ);
                                                }
                                                $resultFeatures[] = $shape;
                                                $numResults += 1;
                                        }

In my understanding there must be a loop to fill the $resultFeatures since in mode 'map' they are drawn from it.

Regards,
Matej


2012/10/16 Jim Klassen <klassen.js at gmail.com>:
> Ok... looking at the MapServer code, it looks like msQueryByRect eventually calls msLayerWhichShapes, but then steps through all the results using msLayerNextShape and populates the layer's result cache.
>
> So either we need to call whichShapes (instead of queryByRect) before our nextShapes while loop, and then call $map->queryByRect before our processTemplate (which is already there), or we need to call queryByRect and then loop through the result cache.
>
> while($shape = $queryLayer->nextShape()) {
>         ...
> }
>
> to
>
> for($i = 0; i < $queryLayer->getNumResults(); i++) {
>         $shape = $queryLayer->getResult(i);
>         ...
> }
>
> Although, since I'm not convinced that the shape re-projection code 
> will work (it is re-projecting shapes it doesn't "own" and so is 
> either re-projecting a copy and then throwing out the result or it is 
> modifying the layer's result cache, which I'm not sure is "legal"), 
> just setting
>
> $numResults = $queryLayer->getNumResults();
>
> and dropping the while(nextShape) loop may be cleaner.
>
> Thoughts???
>
> On Oct 16, 2012, at 7:07 AM, Matej Mailing wrote:
>
>> Hi,
>>
>> it seems that nextShape() requires a whichShapes() call before. So 
>> after adding $status = 
>> $queryLayer->whichShapes($queryLayer->getExtent()); before 
>> while($shape = $queryLayer->nextShape()) {
>>
>> it works.
>>
>> I don't know how it could work for anyone - perhaps older Mapserver 
>> didn't have this requirement?
>>
>> Regards,
>> Matej
>>
>> 2012/10/15 Jim Klassen <klassen.js at gmail.com>:
>>> The only thing I see is that they may be running different queries.
>>>
>>> The first one (with the while loop) querying a single *layer* (although in theory the loop above that would loop through all the layers).  The second one is querying *map* and returning the processed template.
>>>
>>>
>>> On Oct 15, 2012, at 9:02 AM, Matej Mailing wrote:
>>>
>>>> Hi,
>>>>
>>>> we have a problem when using Search with the query.php. The problem 
>>>> is that we always get a message: "No results found for your query! 
>>>> " even though I am sure that the item with such an attribute 
>>>> exists. When turning on the debug mode in query.php the output is:
>>>> "...
>>>> queryLayer iterated through
>>>> Total Results: 0
>>>> Results from MS: <a id="data-shape="coords"
>>>> href="javascript:GeoMOOSE.zoomToPointsList(dojo.byId('data-[ID]').g
>>>> etAttribute("data-shape'),
>>>> 'EPSG...');">data<br/>\n"
>>>>
>>>> It's strange that the result from MS includes the result with the 
>>>> correct attributes from the DB, but Total Results is 0.
>>>>
>>>> I have found out that "while($shape = $queryLayer->nextShape()) {"
>>>> line is never true, therefore the code inside (which does the
>>>> counting) never executes.
>>>>
>>>> Since we are getting the data back from the Mapserver I suppose the 
>>>> Mapfile and the Mapbook.xml contents are correct.
>>>>
>>>> What could be wrong here?
>>>>
>>>> Thanks,
>>>> Matej
>>>> _______________________________________________
>>>> Geomoose-users mailing list
>>>> Geomoose-users at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/geomoose-users
>>>
>
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