[英]Geoserver WFS layer as Timestamp fields converted to string on OpenLayers Vector layer
我正在使用以下代碼在開放層中使用WFS層:
crashes = new OpenLayers.Layer.Vector(title, {
strategies: [new OpenLayers.Strategy.BBOX({resFactor: 1}), clusterStrategy],
minScale: minimumScale,
visibility:visiblity,
displayInLayerSwitcher:showInLayerSwitcher,
protocol: new OpenLayers.Protocol.WFS({
version: "1.1.0",
srsName: srid,
url: wfsUrl,
featureType: layerName,
geometryName: geomCol,
featurePrefix: prefix,
featureNS : namespace
}),
styleMap: new OpenLayers.StyleMap({
"default": style,
"select": {
fillColor: "red",
strokeColor: "#32a8a9"
}
})
});
從傳遞參數的函數中獲取。此層很好地工作。
我現在想將過濾器應用於此層,其中之一是在日期字段上使用之間的比較。
,new OpenLayers.Filter.Comparison({
type: OpenLayers.Filter.Comparison.BETWEEN,
property: "CRASH_DATE",
lowerBoundary: new Date(2011,0,1);,
upperBoundary: new Date(2014,0,1);
})
似乎所有字段都被轉換為字符串類型,因此嘗試執行此Camparison不會導致返回任何數據:
我也嘗試過創建不返回任何結果的函數過濾器:
vehicleCrashLayer.filter = new OpenLayers.Filter.Logical({
type: OpenLayers.Filter.Logical.AND,
filters: [
new OpenLayers.Filter.Spatial({
type: OpenLayers.Filter.Spatial.INTERSECTS,
value: event.feature.geometry,
})
,new OpenLayers.Filter.Comparison({
type: OpenLayers.Filter.Comparison.NOT_EQUAL_TO,
property: "SEVERITY",
value: "Property Damage Only"
})
,new OpenLayers.Filter.Comparison({
type: OpenLayers.Filter.Comparison.NOT_EQUAL_TO,
property: "SEVERITY",
value: "Not Known"
})
,new OpenLayers.Filter.Comparison({
type: OpenLayers.Filter.Comparison.NOT_EQUAL_TO,
property: "SEVERITY",
value: "Not Stated"
})
,new OpenLayers.Filter.Function({
name: 'dateBetween',
type: OpenLayers.Filter.Function,
evaluate: function(feature){
console.log(feature.attributes);
var x=0;
return true;
}
})
]
});
有人能幫忙嗎。 例子很少而且相去甚遠。
我還沒有測試過,但是您是否嘗試過類似時間戳的值? 用Java語言編寫: new Date().getTime()
返回自給定時間以來的毫秒數。 如果您也可以安排數據庫返回該值,則可以使用整數。 這很容易...
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