[OpenLayers-Users] Problems implementing WFS
Alexandre Dube
adube at mapgears.com
Wed Jul 29 08:01:29 EDT 2009
Hi,
See below.
Maxime Phaneuf wrote:
> I've compared this to the GML Insert you send to TinyOWS in
> http://dev4.mapgears.com/bdga/bdgaWFS-T.html and it looks alike.
>
> This is the answer I received from TinyOWS:
> <?xml version='1.0' encoding='UTF-8'?>
> <ows:ExceptionReport
> xmlns='http://www.opengis.net/ows'
> xmlns:ows='http://www.opengis.net/ows'
> xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
> xsi:schemaLocation='http://www.opengis.net/ows
> http://schemas.opengis.net/ows/1.0.0/owsExceptionReport.xsd'
> version='1.1.0' language='en'>
> <ows:Exception exceptionCode='InvalidParameterValue' locator='request'>
> <ows:ExceptionText>xml isn't valid</ows:ExceptionText>
> </ows:Exception>
> </ows:ExceptionReport>
>
> Since the update works, I suppose the saveStrategy is not the problem. Do
> you know what could be the problem?
>
>
This looks like a TinyOWS problem. It uses the very strict libxml2
library to validate the received xml. I don't know what's the status of
this problem, but there's a workaround. Maybe we could continue this
discussion on TinyOWS-users ML if you don't mind.
What version of TinyOWS are you using ? On which platform ?
I think your problem is related to the following ticket :
http://www.tinyows.org/trac/tinyows/ticket/22
Regards,
Alexandre
> Thanks,
> Maxime
>
>
>
> Alexandre Dube wrote:
>
>> Hi,
>>
>> Yes, this looks like a namespace problem. With firebug, go to the
>> lib/OpenLayers/Format/XML.js file, in the readNode function at line :
>>
>> var group = this.readers[this.namespaceAlias[node.namespaceURI]];
>>
>> and put a breakpoint there. You'll understand what's going on and also
>> what namespace you need to define.
>>
>> Hope this helps,
>>
>> Alexandre
>>
>> Maxime Phaneuf wrote:
>>
>>> Hi guys
>>>
>>> I've got the same problem as Hugo. My WFS layer would not appear on the
>>> map,
>>> even though I've got a ok server response.
>>>
>>> My layer looks like this:
>>> wfs = new OpenLayers.Layer.Vector("France", {
>>> strategies: [new OpenLayers.Strategy.BBOX(),
>>> saveStrategy],
>>> protocol: new OpenLayers.Protocol.WFS({
>>> version: "1.0.0",
>>> url: "http://mydomain/cgi-bin/tinyows",
>>> featureType: "france_dept",
>>> srsName: "EPSG:24582",
>>> featurePrefix: "tows",
>>> //featureNS: "http://mydomain",
>>> geometryName: "the_geom",
>>> schema:
>>> "http://mydomain/cgi-bin/tinyows?service=WFS&version=1.0.0&request=DescribeFeatureType&TypeName=france_dept",
>>> })
>>> });
>>>
>>> Define like this, the layer will show up, but any modification can't be
>>> saved. When I take off the comments of featureNS, it will not show up, so
>>> I
>>> suppose it is an error caused by the namespace.
>>>
>>> I've tried putting a breakline where you told but it doesn't even stop
>>> when
>>> I reload the page.
>>> What is the correct value to put for featureNS? Or do you see anything
>>> else
>>> wrong with my layer definition?
>>>
>>> Thank you
>>> Maxime Phaneuf
>>>
>>>
>>> Hugo-2 wrote:
>>>
>>>
>>>> Hi Alexandre,
>>>>
>>>> Thanks for your help. Indeed it was a problem with the namespace. A
>>>> dummy
>>>> mistake :)
>>>>
>>>> Kind regards,
>>>>
>>>> Hugo Martins
>>>>
>>>> On Tue, Jun 30, 2009 at 1:00 PM, Alexandre Dube <adube at mapgears.com>
>>>> wrote:
>>>>
>>>>
>>>>
>>>>> Hi Hugo,
>>>>>
>>>>> This looks like a feature namespace problem. See the Format.XML
>>>>> readNode
>>>>> function, put a break point at line :
>>>>>
>>>>> var group = this.readers[this.namespaceAlias[node.namespaceURI]];
>>>>>
>>>>> This might be the problem,
>>>>>
>>>>> Alexandre
>>>>>
>>>>> Hugo wrote:
>>>>>
>>>>>
>>>>>
>>>>>> Hello all,
>>>>>>
>>>>>> I'm having troubles to implement a vector layer with WFS protocol.
>>>>>> From
>>>>>> firebug i can see that the attributes from the layer are extracted,
>>>>>> however
>>>>>> no vector feature is displayed in the map.
>>>>>> DO you have any suggestions??? My code is as follows:
>>>>>>
>>>>>> var saveStrategy = new OpenLayers.Strategy.Save();
>>>>>> var wfs2 = new OpenLayers.Layer.Vector(
>>>>>> "ExplorWFS2",
>>>>>> {
>>>>>> strategies: [new OpenLayers.Strategy.BBOX(),
>>>>>> saveStrategy],
>>>>>> projection: wgs,
>>>>>> protocol: new OpenLayers.Protocol.WFS({
>>>>>> version: "1.1.0",
>>>>>> srsName: "EPSG:4326",
>>>>>> url: "http://isegi.dyndns.org:8080/geoserver/wfs?",
>>>>>> featureNS : "http://isegi.dyndns.org:8080/sigla",
>>>>>> featureType: "explor",
>>>>>> geometryName: "the_geom",
>>>>>> schema: "
>>>>>> http://isegi.dyndns.org:8080/geoserver/wfs/DescribeFeatureType?version=1.1.0&typename=sigla:explor<
>>>>>> http://isegi.dyndns.org:8080/geoserver/wfs/DescribeFeatureType?version=1.1.0&typename=sigla:explor
>>>>>>
>>>>>>
>>>>>>> ",
>>>>>>>
>>>>>>>
>>>>>> format: new OpenLayers.Format.WFST.v1_1_0({
>>>>>> featureType: 'explor',
>>>>>> featureNS:
>>>>>> "http://isegi.dyndns.org:8080/sigla",
>>>>>> featurePrefix: 'sigla',
>>>>>> geometryName: 'the_geom'
>>>>>> })
>>>>>> }) }
>>>>>> );
>>>>>>
>>>>>> I have tried these code with and without the format option.
>>>>>>
>>>>>> If i simply use the following code, everything goes perfect and vector
>>>>>> features are displayed in the map:
>>>>>>
>>>>>> var wfs = new OpenLayers.Layer.WFS(
>>>>>> "ExplorWFS",
>>>>>> "http://isegi.dyndns.org:8080/geoserver/wfs?",
>>>>>> {typename: 'sigla:explor'},
>>>>>> {
>>>>>> featureVersion: "1.0.0",
>>>>>> typename: 'explor',
>>>>>> featureNS: '"http://isegi.dyndns.org:8080/sigla',
>>>>>> geometryName: "the_geom",
>>>>>> projection: wgs,
>>>>>> extractAttributes: true,
>>>>>> schema: "
>>>>>> http://isegi.dyndns.org:8080/geoserver/wfs/DescribeFeatureType?version=1.1.0&typename=sigla:explor<
>>>>>> http://isegi.dyndns.org:8080/geoserver/wfs/DescribeFeatureType?version=1.1.0&typename=sigla:explor
>>>>>>
>>>>>>
>>>>>>> "
>>>>>>>
>>>>>>>
>>>>>> }
>>>>>> );
>>>>>>
>>>>>> Thanks in advance.
>>>>>> Kind regards,
>>>>>>
>>>>>> Hugo Martins
>>>>>> ------------------------------------------------------------------------
>>>>>>
>>>>>> _______________________________________________
>>>>>> Users mailing list
>>>>>> Users at openlayers.org
>>>>>> http://openlayers.org/mailman/listinfo/users
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>> --
>>>>> Alexandre Dubé
>>>>> Mapgears
>>>>> www.mapgears.com
>>>>>
>>>>>
>>>>>
>>>>>
>>>> _______________________________________________
>>>> Users mailing list
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>>>>
>>>>
>>>>
>>>>
>>>
>>>
>> --
>> Alexandre Dubé
>> Mapgears
>> www.mapgears.com
>>
>> _______________________________________________
>> Users mailing list
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>>
>>
>>
>
>
--
Alexandre Dubé
Mapgears
www.mapgears.com
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