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:ahoce...@opengeo.org]
> Sent: 03 August 2011 12:04
> To: Antony Scott
> Cc: users@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:ahoce...@opengeo.org]
>> Sent: 03 August 2011 10:24
>> To: Antony Scott
>> Cc: users@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
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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)
>>
>> ------------------------------------------------------------
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>> Sustain Ltd. Registered in England No. 3384793
>> Barley Wood Stables, Long Lane, Wrington, Bristol BS40 5SA, UK
>>
>> ------------------------------------------------------------
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>> This e-mail and any attachments are strictly confidential
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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
>
> ------------------------------------------------------------
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> This e-mail and any attachments are strictly confidential
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OpenGeo - http://opengeo.org/
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