aimsquery.js

最基本的IMS功能可以调试

// aimsQuery.js
/*
*  JavaScript template file for ArcIMS HTML Viewer
*		dependent on aimsXML.js, ArcIMSparam.js, aimsCommon.js, aimsMap.js, aimsIdentify.js, aimsSelect.js, and aimsLayers.js
*		To be interactive, dependent also on aimsDHTML.js, aimsClick.js, and aimsNavigation.js
*/

aimsQueryPresent=true;

var showSampleValues=false;

var storedQueryCount = 0;

var storedQueryName = new Array();
var storedQueryString = new Array();
var storedQueryVariable = new Array();
var storedQueryVarCount = new Array();
var storedQueryFieldList = new Array();
var storedQueryIndex = 0;


/*
***************************************************************************************

Querying functions 

***************************************************************************************
*/


// query form
function queryForm() {
	if (checkIfActiveLayerAvailable()) {
		fieldIndex=0;
		showSampleValues=false;
		
		setLayerFields(ActiveLayerIndex);
		if (showSampleValues) {
			var theText = writeFieldSample(LayerFields[fieldIndex]);
			sendToServer(imsQueryURL,theText,40);
		} else {
			writeQueryForm();
		}
	}
		
}

// find Form
function findForm() {
	if (checkIfActiveLayerAvailable()) {
		setLayerFields(ActiveLayerIndex);
		if (useTextFrame) {
			parent.TextFrame.document.location= appDir + "findForm.htm";
		} else {
			var Win1 = open(appDir + "findForm.htm","QueryWindow","width=575,height=150,scrollbars=yes,resizable=yes");
		}
	}
}



// process query
function sendQueryString(newString) {
	//if (LayerIDField[ActiveLayerIndex]!="#ID#") {
		newString = fixSingleQuotes(newString);
		newString = swapQuotes(newString);
	//}
	//alert(newString);
	newString = makeXMLsafe(newString);
	setQueryString=newString;
	selectionMode=1;
	selectData.length=0;
	LayerFields.length=0;
	LayerFieldType.length=0;
	LayerFieldCount=0;
	highlightedOne="";
	showBuffer=false;
	showRetrieveData();
	var theString = writeQueryXML(newString);
	sendToServer(imsQueryURL,theString,queryXMLMode);
}

// write out XML request to query attributes
function writeQueryXML(queryString) {
	if (swapSelectFields) {
		selectFields=selFieldList[ActiveLayerIndex];
	}
	var theString = '<ARCXML version="1.1">\n<REQUEST>\n<GET_FEATURES outputmode="xml" geometry="false" envelope="true" checkesc ="true"';
	theString += ' featurelimit="' + maxFeaturesReturned + '" beginrecord="' + queryStartRecord + '">\n';
	theString += '<LAYER id="' + ActiveLayer + '" />';
	if (useLimitExtent) {
		// keep this within the limitExtent
		theString += '<SPATIALQUERY subfields="' + selectFields + '" where="' + queryString + '">';
		theString += '<SPATIALFILTER relation="area_intersection">\n';
		theString += '<ENVELOPE maxx="' + forceComma(limitRight) + '" maxy="' + forceComma(limitTop) + '" minx="' + forceComma(limitLeft) + '" miny="' + forceComma(limitBottom) + '" />\n';
		theString += '</SPATIALFILTER>\n';
		theString += '</SPATIALQUERY>\n';
	} else {
	//theString += '<QUERY subfields="' + selectFields + '" where="' + queryString + '" />';
	theString += '<SPATIALQUERY subfields="' + selectFields + '" where="' + queryString + '" />';
	}
	theString += '</GET_FEATURES>';
	theString += '</REQUEST>';
	theString += '</ARCXML>';
	//alert("writeQueryXML()\nQuery XML Request:\n" + theString);
	selectLayer=ActiveLayer;
	selectType=ActiveLayerType;
	selectCount=0;
	hightlightedOne="";
	selectPoints.length=1;
	selectLeft.length=1;
	selectRight.length=1;
	selectTop.length=1;
	selectBottom.length=1;
	return theString;
	
}

// write out XML request to get field value samples
function writeFieldSample(theField) {
	var theFields = theField;
	var theString = '<ARCXML version="1.1">\n<REQUEST>\n<GET_FEATURES outputmode="xml" geometry="false" envelope="false" checkesc ="true"';
	theString += ' featurelimit="' + numberDataSamples + '">\n';
	theString += '<LAYER id="' + ActiveLayer + '" />';
	//theString += '<QUERY subfields="' + theFields + '" where="' + LayerIDField[ActiveLayerIndex] + ' GT 0" />';
	theString += '<QUERY subfields="' + theFields + '" />';
	theString += '</GET_FEATURES>';
	theString += '</REQUEST>';
	theString += '</ARCXML>';
	//alert(theString);
	selectLayer=ActiveLayer;
	selectType=ActiveLayerType;
	selectCount=0;
	hightlightedOne="";
	selectPoints.length=1;
	selectLeft.length=1;
	selectRight.length=1;
	selectTop.length=1;
	selectBottom.length=1;
	//alert(theString);
	return theString;
}
// send find request
function getFind(theValue) {
	//alert(theValue);
	selectCount=0;
	showBuffer=false;
	highlightedOne="";
	selectPoints.length=0;
	selectLeft.length=0;
	selectRight.length=0;
	selectTop.length=0;
	selectBottom.length=0;
	drawSelectBoundary=false;
	showGeocode=false;
	clickCount=0;
	totalMeasure=0;
	currentMeasure=0;
	selectionMode=1;
	var theNewQueryString = "";
	var theTempString = "";
	var fieldListString = LayerIDField[ActiveLayerIndex] + " " + LayerShapeField[ActiveLayerIndex];
	var elemCount = 0;
	for (var i=0;i<LayerFields.length;i++) {
		var ftval = parseInt(LayerFieldType[i]);
		if ((ftval>=12) && (ftval<=15)) {
		//if ((LayerFieldType[i].indexOf("12",0)!=-1) || (LayerFieldType[i].indexOf("13",0)!=-1) || (LayerFieldType[i].indexOf("13",0)!=-1) || (LayerFieldType[i].indexOf("15",0)!=-1)){
			if (queryCaseInsensitive) {
				theTempString = "UPPER(" + LayerFields[i] + ") LIKE '%" + theValue.toUpperCase() + "%'";
			} else {
				theTempString = LayerFields[i] + " LIKE '%" + theValue + "%'";
			}
			if (elemCount>0) theTempString = " OR " + theTempString;
			//if (theNewQueryString.length + theTempString.length < 1024) {
				theNewQueryString = theNewQueryString + theTempString;
				fieldListString = fieldListString + " " + LayerFields[i];
				elemCount += 1;
			//}
			
		}
	}
	if (theNewQueryString!="") {
		showRetrieveData();
		showBuffer=false;
		theNewQueryString=makeXMLsafe(theNewQueryString);
		//alert(theNewQueryString);
		setQueryString = theNewQueryString;
		var theString = writeFindRequest(theNewQueryString,fieldListString);
		//alert(theString);
		sendToServer(imsQueryURL,theString,findXMLMode);
	} else {
		alert(msgList[80]);
	}
}

// write out find form
function writeFindRequest(findQuery,fieldList) {
	var theString = '<ARCXML version="1.1">\n<REQUEST>\n<GET_FEATURES outputmode="xml" geometry="false" envelope="true" checkesc ="true"';
	theString += ' featurelimit="' + maxFeaturesReturned + '" beginrecord="' + queryStartRecord + '">\n';
	theString += '<LAYER id="' + ActiveLayer + '" />\n';
	if (useLimitExtent) {
		// keep this within the limitExtent
		theString += '<SPATIALQUERY subfields="' + fieldList + '" where="' + findQuery + '" />';
		theString += '<SPATIALFILTER relation="area_intersection">\n';
		theString += '<ENVELOPE maxx="' + forceComma(limitRight) + '" maxy="' + forceComma(limitTop) + '" minx="' + forceComma(limitLeft) + '" miny="' + forceComma(limitBottom) + '" />\n';
		theString += '</SPATIALFILTER>\n';
		theString += '</SPATIALQUERY>\n';
	} else {
	theString += '<QUERY subfields="' + fieldList + '" where="' + findQuery + '" />';
	}
	theString += '</GET_FEATURES>\n';
	theString += '</REQUEST>\n';
	theString += '</ARCXML>';
	//alert(theString);
	selectLayer=ActiveLayer;
	selectType=ActiveLayerType;
	selectCount=0;
	hightlightedOne="";
	selectPoints.length=1;
	selectLeft.length=1;
	selectRight.length=1;
	selectTop.length=1;
	selectBottom.length=1;
	return theString;

}

// parse layer field value samples
function parseFieldSamples(theReply) {
	if (onlyUniqueSamples) { 
		parseFieldSamplesUnique(theReply);
	} else {
		//alert("Reply Length: " + theReply.length);
		//alert(theReply);
		var fList="";
		var lpos1 = 1;
		var lpos2 = 1;
		var epos = 1;
		var spos = 1;
		var morePoints=true;
		var moreFeatures=true;
		var pos = 0;
		var startpos = 0;
		var endpos = 0;
		var featureCount = justGetFeatureCount(theReply);
		var tempString="";
		if (featureCount > 0) {
			selectData.length=featureCount;
			for (var i=0;i<featureCount;i++) {
				pos = theReply.indexOf("<FIELDS ",endpos);
				startpos = pos + 8;
				endpos =theReply.indexOf(' />',startpos);
				inData = theReply.substring(startpos,endpos);
				//inData = fixSingleQuotes(inData);
				//selectData[i] = clearLeadingSpace(inData);
				//selectData[i] = escape(inData);
				selectData[i] = inData;
	
			}
		} else {
			selectData.length=0;
		}
	}
}

//replace the original function parseFieldSamples with this function parseFieldSamples
// parse layer field value samples
function parseFieldSamplesUnique(theReply) {
	//alert("Reply Length: " + theReply.length);
	//alert(theReply);
	var fList="";
	var lpos1 = 1;
	var lpos2 = 1;
	var epos = 1;
	var spos = 1;
	var morePoints=true;
	var moreFeatures=true;
	var pos = 0;
	var startpos = 0;
	var endpos = 0;
	var featureCount = justGetFeatureCount(theReply);
	//alert(theReply);
	var tempString="";
	//variables added to original function
	var k = 1;
	var sdLeng = 0;
	var charSort = false;
	
	if (featureCount > 0) {

	//Add the first sample value 
		for (var i=0;i<1;i++) {
			if (selectData.length>0) {
				selectData.length=0;
			}
			pos = theReply.indexOf("<FIELDS ",endpos);
			startpos = pos + 8;
			endpos =theReply.indexOf(' />',startpos);
			inData = theReply.substring(startpos,endpos);
			selectData[i] = inData;
		}
		
	//Add additional sample values
		for (var i=1;i<featureCount;i++) {
						
			pos = theReply.indexOf("<FIELDS ",endpos);
			startpos = pos + 8;
			endpos =theReply.indexOf(' />',startpos);
			inData = theReply.substring(startpos,endpos);
			sdLeng = selectData.length;
			
			for (var j=0;j<sdLeng;j++){
				if (selectData[j] == inData){
					addValue = false;
					break;
				} else {
					addValue = true; 
				}
			}
			
			if (addValue){
				selectData[k] = inData;
				k = k + 1;