Hi all,
I'm using OL 2.11 with GeoExt 1.1. After testing and modifying this GeoExt
example: http://geoext.org/lib/GeoExt/widgets/form/FormPanel.html, I had
problems with destroying and reading the new protocol, I'm getting "TypeError:
this.options is null HTTP.js (line 180)" in firebug. What I understand
from this line 180 is that the new options (in the new protocol) are not there,
not sure if this is the problem and how to solve it. This is the original
protocol (created outside the FormPanel):
protocol = new OpenLayers.Protocol.HTTP({
url: '/fs/',
format: new OpenLayers.Format.GeoJSON({
ignoreExtraDims: true,
'internalProjection': new OpenLayers.Projection('EPSG:900913'),
'externalProjection': new OpenLayers.Projection('EPSG:4326')
})
});
This is the code at the end of the FormPanel where the new protocol is created:
buttons: [{
text: 'Search',
handler: function() {
comboLayer = Ext.getCmp('idcombo').getValue();
keyword = Ext.getCmp('idtextfield').getRawValue();
protocol.destroy();
protocol = new OpenLayers.Protocol.HTTP({
url: '/fs/' + comboLayer +
'?format=GeoJSON&comments__ilike=' + keyword + '&queryable=comments',
format: new OpenLayers.Format.GeoJSON({
ignoreExtraDims: true,
'internalProjection': new
OpenLayers.Projection('EPSG:900913'),
'externalProjection': new
OpenLayers.Projection('EPSG:4326')
})
});
protocol.read();
formPanel.search();
}
}]
In the case I remove "protocol.destroy();", both the original and the new
protocols are sent, but always the original is sent after the new one, this
happens because the request is AJAX? is it possible to send the new after the
original?
I'd appreciate some support on this, thanks in advance,
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