You would really need to put up a more complete example or a link to an
accessible version of the application, or at least a minimal example if the
below information doesn’t help
Look at the documentation and examples on ExtJS combo box and the store config
option.
First, you want to make sure that you are running ‘collect’ only after the
feature store is finished loading.
Second, when you use an array for the ‘store’ configuration option, you do NOT
include the ‘displayField’ & ‘valueField’ options. The combo auto-creates a
real store from the array and maps the correct field name to the display &
value options.
Matt Priour
From: Jorge Lopez
Sent: Thursday, November 03, 2011 6:52 AM
To: Users@geoext.org
Subject: Re: [Users] Load combo, FeatureStore and filter values
Thanks Matt for your advice.
Anyway I didn`t succeed it. As you comment, first I should create an array by
using 'collect' method on combo's store. I got it by using an easy example of
an arraystore (static) but in my example, with data provided by an web service,
when I use collect method like this:
var combo1=new Ext.form.ComboBox({
fieldLabel:'Filtro Pais',
name:'cmb-P',
forceSelection: true,
store: store2.collect('COUNTRY'), //store2 is my combo's store
mode: 'local',
emptyText:'Select a country',
triggerAction: 'all',
//allQuery: 'DISTINCT',
editable:false,
displayField:'COUNTRY',
valueField: 'COUNTRY'
});
Nothing is appeared. I think that store is not loaded, so nothing can happen
but why I got it if collect is not used?
I can figure out what is happening.
Jorge
On Wed, Nov 2, 2011 at 3:38 PM, Matt Priour <mpri...@kestrelcomputer.com> wrote:
You’re going to want to use an ArrayStore for that “COUNTRY” combo box, not
the feature store.
If you use the feature store and filter unique countries, you will also be
filtering the grid.
Provide the array returned by the ‘collect’ method
(http://docs.sencha.com/ext-js/3-4/#!/api/Ext.data.Store-method-collect) on the
feature store to the ArrayStore’s loadData function.
Put a listener on the combo box for the ‘select’ event that uses the selected
value to filter the feature store is you want to limit feature records by that
value.
If you are just looking to do linked combos, and not do any filtering or only
filter after the user has made a series selections from linked combos, then you
should have the ‘select’ listener for the first combo box ‘query’
(http://docs.sencha.com/ext-js/3-4/#!/api/Ext.data.Store-method-query) the
feature store and either directly use the returned collection in the linked
child combo box(es) or further process the collection to unique values for a
simple array store backed combo box
Matt Priour
From: Jorge Lopez
Sent: Wednesday, November 02, 2011 5:22 AM
To: users@geoext.org
Subject: [Users] Load combo, FeatureStore and filter values
Hello everyone:
I am driving mad with this problem. I am doing a web application with
OpenLayers, ExtJs and GeoExt and the simple fact to load values in a combo have
become hard.
Step1: I have defined a featurestore that stores the records from a layer in
Geoserver. No problem to load these items in a GeoExt gridPanel. This store has
been generated with this code:
----
store = new GeoExt.data.FeatureStore({
layer: wfslayer,
fields: [
{name: 'PLANT', type: 'string'},
{name: ‘COUNTRY’, type: ‘string’},
{name: ‘STATUS', type: 'string'},
{name: 'long', type: 'float'},
{name: 'lat', type: 'float'},
],
proxy: new GeoExt.data.ProtocolProxy({
protocol: new OpenLayers.Protocol.WFS({
//version: "1.0.0",
srsName: 'EPSG:900913',
url:
"http://localhost:8080/geoserver/wfs";,
featureNS:
'http://localhost:8080/wfs',
featurePrefix: nomPrefix,
featureType: nomLayer,
geometryName: nomGeometry,
schema:
http://localhost:8080/geoserver/wfs?service=WFS&request=DescribeFeatureType&typename=lonlat22";
})
}),
autoLoad: true
});
--
This store has records with fields (COUNTRY) that contains repeated values
and I would like to filter that store by this field: COUNTRY. For that, I have
created a ComboBox and I am trying to show only “no repeated” values but no
success.
var combo1=new Ext.form.ComboBox({
fieldLabel:'Filtro Pais',
name:'cmb-P',
forceSelection: true,
store: store,
emptyText:'Escoge un país',
triggerAction: 'all',
//allQuery: 'DISTINCT',
editable:false,
displayField:'COUNTRY',
valueField: 'COUNTRY'
});
This combo shows a list of all (repeated) values from store. This a question
of ExtJS forum but I would appreciate if anyone knew how to filter it out.
Once a country is selected from combo, I would like to be shown the STATUS
associated to that selected COUNTRY. This is a question of anidated combos but
I don’t know how to ‘featurefilter’ config tag would be entered in this
problem.
Any ideas?
Thanks in advanced
Jorge
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