[Users] Accessing Layer Metadata (SOLVED)
Robert Buckley
robertdbuckley at yahoo.com
Wed Aug 3 17:41:45 CEST 2011
Hi,
so to get this straight....you are writing the abstract and keywords in
geoserver, right? how are you linking the tree node to the grid? or am I
missing something?
How does the user activate the metadata?
is your working example in the web?
yours,
Rob
________________________________
Von: Antony Scott <Antony.Scott at sustain.co.uk>
An: Andreas Hocevar <ahocevar at opengeo.org>
CC: "users at geoext.org" <users at geoext.org>
Gesendet: Mittwoch, den 3. August 2011, 17:16:16 Uhr
Betreff: Re: [Users] Accessing Layer Metadata (SOLVED)
Andreas
Perfect, that works, see below.
Many thanks
Antony
...........................................................................................................
var md_store = new GeoExt.data.WMSCapabilitiesStore({
url:
"http://localhost:8080/geoserver/ows?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetCapabilities",
autoLoad: true,
fields: ["name","title","abstract","keywords"],
listeners: {
'load' : function(store,records,options)
{
store.loaded = true;
store.filter("keywords","test");
}
},
});
var md_grid = new Ext.grid.GridPanel({
collapsible: true,
split: true, initialSize: 100,
autoScroll:true,
height: 200,
width: 320,
title: "Available WMS Layers",
region: "south",
viewConfig: {forceFit: true},
store: md_store,
columns: [
{header: "Name", dataIndex: "name", sortable: true},
{header: "Title", dataIndex: "title", sortable: true},
{header: "Abstract", dataIndex: "abstract"},
{header: "Keywords", dataIndex: "keywords"}
]
});
-----Original Message-----
From: Andreas Hocevar [mailto:ahocevar at opengeo.org]
Sent: 03 August 2011 13:52
To: Antony Scott
Cc: users at geoext.org
Subject: Re: [Users] Accessing Layer Metadata
You cannot filter the store before it is loaded - add a load listener to the
store, and set your filter there.
Andreas.
On Aug 3, 2011, at 14:40 , Antony Scott wrote:
> Andreas,
>
> Thanks, but still having no luck, below are relevant sections of my code in
>case someone cam spot where I am going wrong...
>
> At the top:
>
> var md_store = new GeoExt.data.WMSCapabilitiesStore({
> url:
>"http://localhost:8080/geoserver/ows?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetCapabilities",
>
> fields: ["name","title","abstract","keywords"],
> autoLoad: true
> });
>
> md_store.filter("keywords","test");
>
> var md_grid = new Ext.grid.GridPanel({
> collapsible: true,
> split: true, initialSize: 100,
> autoScroll:true,
> height: 200,
> width: 320,
> title: "Available WMS Layers",
> region: "south",
> viewConfig: {forceFit: true},
> store: md_store,
> columns: [
> {header: "Name", dataIndex: "name", sortable: true},
> {header: "Title", dataIndex: "title", sortable: true},
> {header: "Abstract", dataIndex: "abstract"},
> {header: "Keywords", dataIndex: "keywords"}
> ]
> });
>
> .....................
> At the bottom:
> xtype: 'panel',
> defaults:{autoScroll:true},
> region: 'west',
> split: true,
> width: 250,
> items: [ tree
> , formPanel
> , legendPanel
> ]
> }
> , md_grid
> ]
> });
>
> Currently I'm seeing all 22 of my GeoServer layers in the grid, rather than the
>one which I would expect the filter to return.
>
> Many thanks
> Antony
>
> -----Original Message-----
> From: Andreas Hocevar [mailto:ahocevar at opengeo.org]
> Sent: 03 August 2011 12:04
> To: Antony Scott
> Cc: users at geoext.org
> Subject: Re: [Users] Accessing Layer Metadata
>
> Hi,
>
> you have to apply the filter *before* your tree loaders access the store. The
>loaders don't listen to filter changes.
>
> Andreas.
>
> On Aug 3, 2011, at 12:42 , Antony Scott wrote:
>
>> Andreas
>>
>> Many thanks - yes I tried that too, but same result, nothing I have tried
>>actually applies the filter to my data.
>>
>> As per Rob (go Brissle..!), ideally I'd like something which was sensitive to
>>the layers in the tree to avoid having to set a bespoke filter, but maybe that
>>would require some extension development.
>>
>> Cheers
>> Antony
>>
>> -----Original Message-----
>> From: Andreas Hocevar [mailto:ahocevar at opengeo.org]
>> Sent: 03 August 2011 10:24
>> To: Antony Scott
>> Cc: users at geoext.org
>> Subject: Re: [Users] Accessing Layer Metadata
>>
>> Hi,
>>
>> filtering a store is the same for all Ext stores. See
>>http://dev.sencha.com/deploy/ext-3.4.0/docs/?class=Ext.data.Store.
>>
>> In your snippet, this would be
>>
>> store.filter("keywords", "test");
>>
>> Andreas.
>>
>> On Aug 3, 2011, at 10:34 , Antony Scott wrote:
>>
>>> Good morning all
>>>
>>> I've been trying to find a simple way of displaying the metadata for the layers
>>>I am using in a layer tree. I've managed to list all the layers in an ExtJS
>>>gridPanel, but have not been able to successfully apply a filter to the store -
>>>this, for example, seems to have no effect on the list, which displays all my
>>>GeoServer layers:
>>> store.filter([ {
>>> property : 'keywords',
>>> value : 'test'}]);
>>>
>>> Ideally in fact I would like to display - either in a grid, or in the tree
>>>itself - metadata for only the layers which are shown in the tree.
>>>
>>> The other option I have looked at is storing the metadata in the SLD, though as
>>>it relates to the layer rather than the style I would prefer not to do this.
>>>
>>> Can anyone point me in the direction of a working example?
>>>
>>> Many thanks
>>>
>>> Antony
>>>
>>> Antony Scott
>>>
>>>
>>> Sustain is a leading carbon reduction company. Our clients have saved
>>>
>>> 4,131,800 lifetime tCO2e through working with us (June 2011)
>>>
>>>
>>>
>>> Sustain Ltd. Registered in England No. 3384793
>>> Barley Wood Stables, Long Lane, Wrington, Bristol BS40 5SA, UK
>>>
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>>
>>
>>
>> --
>> Andreas Hocevar
>> OpenGeo - http://opengeo.org/
>> Expert service straight from the developers.
>>
>>
>> Sustain is a leading carbon reduction company. Our clients have saved
>> 4,131,800 lifetime tCO2e through working with us (June 2011)
>>
>> ------------------------------------------------------------
>>
>> Sustain Ltd. Registered in England No. 3384793
>> Barley Wood Stables, Long Lane, Wrington, Bristol BS40 5SA, UK
>>
>> ------------------------------------------------------------
>>
>> This e-mail and any attachments are strictly confidential
>> and intended solely for the addressee. If you are not the
>> intended recipient of this document then you must
>> immediately inform the sender and delete this e-mail and
>> any attachments from your system.
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>> E-mail transmissions cannot be guaranteed to be secure or
>> error free as information could be intercepted, corrupted,
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>
> --
> Andreas Hocevar
> OpenGeo - http://opengeo.org/
> Expert service straight from the developers.
>
>
> Sustain is a leading carbon reduction company. Our clients have saved
> 4,131,800 lifetime tCO2e through working with us (June 2011)
>
> ------------------------------------------------------------
>
> Sustain Ltd. Registered in England No. 3384793
> Barley Wood Stables, Long Lane, Wrington, Bristol BS40 5SA, UK
>
> ------------------------------------------------------------
>
> This e-mail and any attachments are strictly confidential
> and intended solely for the addressee. If you are not the
> intended recipient of this document then you must
> immediately inform the sender and delete this e-mail and
> any attachments from your system.
>
> E-mail transmissions cannot be guaranteed to be secure or
> error free as information could be intercepted, corrupted,
> lost, destroyed, arrive late or incomplete. The sender
> does not accept liability for any errors or omissions in
> the content of this message which arise as a result of
> e-mail transmission.
>
> ------------------------------------------------------------
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--
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.
Sustain is a leading carbon reduction company. Our clients have saved
4,131,800 lifetime tCO2e through working with us (June 2011)
------------------------------------------------------------
Sustain Ltd. Registered in England No. 3384793
Barley Wood Stables, Long Lane, Wrington, Bristol BS40 5SA, UK
------------------------------------------------------------
This e-mail and any attachments are strictly confidential
and intended solely for the addressee. If you are not the
intended recipient of this document then you must
immediately inform the sender and delete this e-mail and
any attachments from your system.
E-mail transmissions cannot be guaranteed to be secure or
error free as information could be intercepted, corrupted,
lost, destroyed, arrive late or incomplete. The sender
does not accept liability for any errors or omissions in
the content of this message which arise as a result of
e-mail transmission.
------------------------------------------------------------
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