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/****************************************************************************
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* Multiple Assessment download
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* @param form containing the neceassary input items
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* @return true/false for form submission
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*****************************************************************************/
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function multipleAssessmentSearch(submitFormObj, fieldFormObj) {
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	//alert("submitFormObj=" + submitFormObj);
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	//harvest the metadata fields we want to include
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	var metadataObjs = new Array();
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	var index = 0;
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	for (var i=0; i < fieldFormObj.length; i++) {
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		var formElement = fieldFormObj.elements[i];
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		var metadataObj = new Object();
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		metadataObj.name = formElement.name;
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		metadataObj.value = formElement.value;
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		metadataObjs[index] = metadataObj;
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		index++;
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	}
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	//TODO option for all questions vs. just one
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	//var questionId = submitFormObj.questionId.value;
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	//alert("questionId=" + questionId);
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	var documentObjects = new Array();
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	var index = 0;
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	if (submitFormObj.docid.length > 1) {
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		for (var i=0; i < submitFormObj.docid.length; i++) {
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			if (submitFormObj.docid[i].value != "") {
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				var documentObject = new Object();
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				documentObject.docid = submitFormObj.docid[i].value;
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				documentObject.demographicData = submitFormObj[documentObject.docid + "demographicData"].value;
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				var questionIds = new Array();
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				for (var z = 0; z < submitFormObj[documentObject.docid].length; z++) {
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					questionIds[z] = submitFormObj[documentObject.docid][z].value;
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				}
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				documentObject.questionIds = questionIds;
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				documentObjects[index] = documentObject;
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				index++;
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			}
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		}
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	}
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	else {
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		//alert("submitFormObj.docid=" + submitFormObj.docid);
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		if (submitFormObj.docid.value != "") {
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			var documentObject = new Object();
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			documentObject.docid = submitFormObj.docid.value;
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			documentObject.demographicData = submitFormObj[documentObject.docid + "demographicData"].value;
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			var questionIds = new Array();
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			if (submitFormObj[documentObject.docid].length > 1) {
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				for (var z = 0; z < submitFormObj[documentObject.docid].length; z++) {
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					questionIds[z] = submitFormObj[documentObject.docid][z].value;
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				}
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			}
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			else {
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				questionIds[0] = submitFormObj[documentObject.docid].value;
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			}
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			documentObject.questionIds = questionIds;
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			documentObjects[0] = documentObject;
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		}
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	}
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	var query = generateQuery(documentObjects, metadataObjs);
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	submitFormObj.dataquery.value = query;
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	return true;
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}
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/****************************************************************************
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* Single Assessment download
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* @param form containing the neceassary input items
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* @return true/false for form submission
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*****************************************************************************/
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function assessmentSearch(submitFormObj) {
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	//harvest the metadata fields we want to include
83
	var metadataObjs = new Array();
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	var index = 0;
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	for (var i=0; i < submitFormObj.length; i++) {
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		var formElement = submitFormObj.elements[i];
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		if (formElement.type == "checkbox" && formElement.checked) {
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			//ignore certain other checkboxes, kind of a hack
89
			if (formElement.name == "includeQuestions") {
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				continue;
91
			}
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			var metadataObj = new Object();
93
			metadataObj.name = formElement.name;
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			metadataObj.value = formElement.value;
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			metadataObjs[index] = metadataObj;
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			index++;
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		}
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	}
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	//var checkBox = document.getElementById("searchAll");
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	var docId = submitFormObj.docid.value;
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	//alert("docId=" + docId);
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	//do we want question metadata?
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	var includeQuestions = submitFormObj.includeQuestions.checked;
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	var questionIds = new Array();
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	questionIds[0] = "";
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	if (includeQuestions) {
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		if (submitFormObj.assessmentItemId.length > 1) {
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			for (var i=0; i < submitFormObj.assessmentItemId.length; i++) {
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				questionIds[i] = submitFormObj.assessmentItemId[i].value;
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			}
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		}
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		else {
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			questionIds[0] = submitFormObj.assessmentItemId.value;
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		}
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	}
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	//set up the list of objects to pass to the query assembler, just one document
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	var documentObjects = new Array();
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	var documentObject = new Object();
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	documentObject.docid = docId;
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	documentObject.questionIds = questionIds;
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	documentObjects[0] = documentObject;
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	var query = generateQuery(documentObjects, metadataObjs);
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	submitFormObj.dataquery.value = query;
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	return true;
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}
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/****************************************************************************
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* Save fields for the attribute maping
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* @param formId containing the neceassary input items
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* @return true/false for form submission
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*****************************************************************************/
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function saveFields(formId, metacatURL) {
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	var submitFormObj = document.getElementById(formId);
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	//send the request to clear
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	var myRequest = new Ajax.Request(
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	metacatURL,
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	{	method: 'post',
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		parameters: {
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			action: 'editcart',
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			operation: 'clearfields'},
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		evalScripts: true,
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		//onSuccess: function(transport) {alert('success: ' + transport.status);},
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		onFailure: function(transport) {alert('failure clearing fields');}
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	 });
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	//go through the check boxes and set the ones we want
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	var count = 0;
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	for (var i=0; i < submitFormObj.length; i++) {
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		var formElement = submitFormObj.elements[i];
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		if (formElement.type == "checkbox" && formElement.checked) {
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			//ignore certain other checkboxes, kind of a hack, but it's javascript...
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			if (formElement.name == "includeQuestions") {
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				continue;
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			}
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			if (formElement.name == "docid") {
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				continue;
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			}
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			//send the request
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			var myRequest = new Ajax.Request(
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			metacatURL,
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			{	method: 'post',
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				parameters: {
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					action: 'editcart',
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					operation: 'addfield',
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					field: formElement.name,
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					path: formElement.value},
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				evalScripts: true,
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				onSuccess: function(transport) {
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					//alert('Selections saved: ' + operation);
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					//refresh after the save
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					if (document.getElementById("ajaxCartResults")) {
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						window.location.reload();
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					}
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					else {
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						window.document.getElementById("iframeheaderclass").src=window.document.getElementById("iframeheaderclass").src;
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					}
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				},
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				onFailure: function(transport) {alert('failure saving field: ' + formElement.name);}
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			 });
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		 	count++;
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		}
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	}
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	//window.document.getElementById("iframeheaderclass").src = window.document.getElementById("iframeheaderclass").src;
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	//alert(count + ' Field selections saved.');
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	return true;
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}
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/****************************************************************************
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* Query Generation function
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* @param docObjs is an Array of Objects with "docid" (String) and "questionIds" (Array) properties
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* @param metadataObjs is an Array of Objects with "name" and "value" properties (both String)
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* @return generated query string
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*****************************************************************************/
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function generateQuery(docObjs, metadataObjs) {
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	//alert("calling method");
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	//make parameters at some point
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	var includeDemographicData = false;
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	var questionMetadataCount = 2;
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	var questionChoiceCount = 5;
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	//construct the assessment metadata attribute selection snippet
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	var metadataAttributes = "";
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	var index = 0;
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	for (var j=0; j < metadataObjs.length; j++) {
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		var metadataObj = metadataObjs[j];
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		metadataAttributes += "<attribute index=\"";
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		metadataAttributes += index;
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		metadataAttributes += "\">";
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		metadataAttributes += "<pathexpr label=\"";
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		metadataAttributes += metadataObj.name;
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		metadataAttributes += "\">";
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		metadataAttributes += metadataObj.value;
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		metadataAttributes += "</pathexpr>";
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		metadataAttributes += "</attribute>";
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		index++;
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	}//metadataObjs loop
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	//construct the begining of the query
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	var tempQuery =
241
        "<?xml version=\"1.0\"?>"
242
        + "<dataquery>"
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			+ "<union>";
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	for (var i=0; i < docObjs.length; i++) {
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		var docId = docObjs[i].docid;
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		var containsDemographicData = docObjs[i].demographicData;
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		//alert("containsDemographicData=" + containsDemographicData);
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		//get the question ids for this question
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		var questionIds = docObjs[i].questionIds;
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		//alert("questionIds=" + questionIds);
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		//assemble the assessment metadata
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		var metadataAttributeSelection = "";
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		if (metadataAttributes.length > 0) {
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			metadataAttributeSelection =
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				"<datapackage id=\"" + docId + "\">"
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					+ "<entity id=\"" + docId + "\">"
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						+ metadataAttributes
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					+ "</entity>"
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				+ "</datapackage>";
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		}
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		//loop for each question item
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		for (var k=0; k < questionIds.length; k++) {
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			var questionId = questionIds[k];
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			tempQuery +=
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			"<query>"
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			+ "<selection>";
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			//select the data
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			tempQuery +=
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				"<datapackage id=\"" + docId + "\">"
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					+ "<entity index=\"0\">"
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						+ "<attribute index=\"0\"/>"
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						+ "<attribute index=\"1\"/>"
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						//DO NOT omit student id attribute - used for transpose
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						+ "<attribute index=\"2\"/>"
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						+ "<attribute index=\"3\"/>"
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						+ "<attribute index=\"4\"/>"
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					+ "</entity>"
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				+ "</datapackage>";
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			//select the demographic data
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			if (includeDemographicData) {
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				if (containsDemographicData) {
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					tempQuery +=
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						"<datapackage id=\"" + docId + "\">"
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							+ "<entity index=\"1\">"
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								//omit student id attribute
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								+ "<attribute index=\"1\"/>"
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								+ "<attribute index=\"2\"/>"
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								+ "<attribute index=\"3\"/>"
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							+ "</entity>"
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						+ "</datapackage>";
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				}
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				else {
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					tempQuery +=
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						"<staticItem name=\"demographic_1\" value=\"\" />"
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						+ "<staticItem name=\"demographic_2\" value=\"\" />"
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						+ "<staticItem name=\"demographic_3\" value=\"\" />";
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				}
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			}
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			//select the metadata
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			tempQuery += metadataAttributeSelection;
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			//select the question metadata
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			if (questionId.length > 0) {
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				tempQuery +=
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				"<datapackage id=\"" + questionId + "\">"
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					+ "<entity id=\"" + questionId + "\">"
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						+ "<attribute name=\"qId\">"
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							+ "<pathexpr label=\"qId\">//assessment/section/item/@ident</pathexpr>"
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						+ "</attribute>"
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						+ "<attribute name=\"qTitle\">"
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							+ "<pathexpr label=\"qTitle\">//assessment/section/item/@title</pathexpr>"
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						+ "</attribute>"
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						+ "<attribute name=\"qLabel\">"
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							+ "<pathexpr label=\"qLabel\">//assessment/section/item/presentation/@label</pathexpr>"
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						+ "</attribute>"
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						+ "<attribute name=\"qPrompt\">"
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							+ "<pathexpr label=\"qPrompt\">(//assessment/section/item/presentation/flow/response_lid/render_choice/material/mattext)|(//assessment/section/item/presentation/flow/response_str/material/mattext)|(//assessment/section/item/presentation/flow/material/mattext)</pathexpr>"
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						+ "</attribute>";
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				//control multiple choices
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				for (var p = 1; p <= questionChoiceCount; p++) {
331
					tempQuery +=
332
						"<attribute name=\"qChoice_" + p + "\">"
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							+ "<pathexpr label=\"qChoice_" + p + "\">//assessment/section/item/presentation/flow/response_lid/render_choice/flow_label/response_label/material/mattext</pathexpr>"
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						+ "</attribute>";
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				}
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				//control multiple metadata fields
337
				for (var q = 1; q <= questionMetadataCount; q++) {
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					tempQuery +=
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						"<attribute name=\"qMetadataVocabulary_" + q +"\">"
340
							+ "<pathexpr label=\"qMetadataVocabulary_" + q +"\">//assessment/section/item/itemmetadata/qtimetadata/vocabulary</pathexpr>"
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						+ "</attribute>"
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						+ "<attribute name=\"qMetadataValue_" + q +"\">"
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							+ "<pathexpr label=\"qMetadataValue_" + q +"\">//assessment/section/item/itemmetadata/qtimetadata/qtimetadatafield/fieldentry</pathexpr>"
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						+ "</attribute>";
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				}
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				tempQuery +=
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					"</entity>"
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				+ "</datapackage>";
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			}
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			tempQuery += "</selection>";
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			//join to the question "table"
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			if (questionId.length > 0) {
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				tempQuery +=
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					"<where>"
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						+ "<condition type=\"join\">"
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							+ "<left>"
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								+ "<datapackage id=\"" + docId + "\">"
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									+ "<entity index=\"0\">"
361
										+ "<attribute index=\"1\"/>"
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									+ "</entity>"
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								+ "</datapackage>"
364
							+ "</left>"
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							+ "<operator>=</operator>"
366
							+ "<right>"
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								+ "<datapackage id=\"" + questionId + "\">"
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									+ "<entity id=\"" + questionId + "\">"
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										+ "<attribute name=\"qId\">"
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											+ "<pathexpr label=\"qId\">//assessment/section/item/@ident</pathexpr>"
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										+ "</attribute>"
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									+ "</entity>"
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								+ "</datapackage>"
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							+ "</right>"
375
						+ "</condition>"
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					+ "</where>";
377
			}
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			tempQuery += "</query>";
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		} // for questionId loop
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	} //for docObjs loop
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	tempQuery +=
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		 "</union>"
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		 + "</dataquery>";
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	//alert(tempQuery);
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    return tempQuery;
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}
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/**
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*	@param searchTerms - and object (hashtable) with, pay attention now:
397
	keys are search values
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*   values are pathexprs
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**/
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function generateSearchString(searchTerms, operator, searchAssessments, searchAssessmentItems) {
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	var queryString =
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		"<pathquery version=\"1.2\">"
403
			+"<querytitle>Web-Search</querytitle>";
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	/** assessments **/
406
	if (searchAssessments) {
407
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		queryString +=
409
			"<returndoctype>edml://ecoinformatics.org/edml</returndoctype>"
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			//assessment fields
412
               +"<returnfield>assessment/duration</returnfield>"
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               +"<returnfield>assessment/title</returnfield>"
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               +"<returnfield>assessment/@id</returnfield>"
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               +"<returnfield>dataset/dataTable/entityName</returnfield>"
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               +"<returnfield>lom/general/title/string</returnfield>"
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               +"<returnfield>lom/general/keyword/string</returnfield>"
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               +"<returnfield>individualName/surName</returnfield>"
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               +"<returnfield>organizationName</returnfield>"
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               +"<returnfield>assessmentItems/assessmentItem/assessmentItemId</returnfield>";
422
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	}
424
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	/** questions **/
426
	if (searchAssessmentItems) {
427
		queryString +=
428
			"<returndoctype>http://www.imsglobal.org/xsd/ims_qtiasiv1p2</returndoctype>"
429
430
			//question (qti) fields
431
			+"<returnfield>item/@title</returnfield>"
432
			+"<returnfield>item/@ident</returnfield>"
433
               +"<returnfield>qtimetadata/qtimetadatafield/fieldlabel</returnfield>"
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               +"<returnfield>qtimetadata/qtimetadatafield/fieldentry</returnfield>"
435
			//classification
436
			+"<returnfield>fieldlabel</returnfield>"
437
			+"<returnfield>fieldentry</returnfield>"
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			+"<returnfield>objectives/material/mattext</returnfield>"
439
			//question content
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			+"<returnfield>presentation/flow/response_lid/render_choice/material/mattext</returnfield>"
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			+"<returnfield>response_label/@ident</returnfield>"
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			+"<returnfield>response_label/material/mattext</returnfield>";
443
	}
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    queryString +=
446
    	"<querygroup operator=\"" + operator + "\">";
447
448
    for (var i in searchTerms) {
449
    	var key = i;
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    	var value = searchTerms[i];
451
    	//only if we have a value
452
    	if (value.length > 0) {
453
			queryString +=
454
				"<queryterm searchmode=\"contains\" casesensitive=\"false\">";
455
				if (key != "anyValue") {
456
					queryString += "<pathexpr>" + key + "</pathexpr>";
457
				}
458
		      	queryString += "<value>" + value + "</value>";
459
		    queryString +="</queryterm>";
460
		}
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    }
462
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	queryString +=
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		"</querygroup>"
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	+"</pathquery>";
466
467
	return queryString;
468
469
}
470
471
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function generateAssessmentSearchString(assessmentItemId) {
473
	var query =
474
		"<pathquery version='1.2'>"
475
		     +"<querytitle>Containing-Assessment-Search</querytitle>"
476
477
		     +"<returndoctype>edml://ecoinformatics.org/edml</returndoctype>"
478
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                      +"<returnfield>assessment/title</returnfield>"
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                      +"<returnfield>assessment/@id</returnfield>"
481
                      +"<returnfield>assessment/duration</returnfield>"
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                      +"<returnfield>dataset/dataTable/entityName</returnfield>"
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                      +"<returnfield>lom/general/title/string</returnfield>"
484
                      +"<returnfield>lom/general/keyword/string</returnfield>"
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                      +"<returnfield>individualName/surName</returnfield>"
486
                      +"<returnfield>organizationName</returnfield>"
487
488
                      +"<returnfield>assessmentItems/assessmentItem/assessmentItemId</returnfield>";
489
490
		    if (assessmentItemId.length > 0) {
491
			    query += "<querygroup operator='UNION'>";
492
493
			    //add the assessmentId if included
494
			    query +=
495
			     		"<queryterm searchmode='contains' casesensitive='false'>"
496
			                  +"<value>"
497
			                  + assessmentItemId
498
			                  +"</value>"
499
			                  +"<pathexpr>assessmentItemId</pathexpr>"
500
			          +"</queryterm>";
501
502
			    //close the query group
503
			     query +=
504
			     "</querygroup>";
505
			}
506
507
		query += "</pathquery>";
508
509
	return query;
510
}
511
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function generateAssessmentListString(assessmentIds) {
513
	var query =
514
		"<pathquery version='1.2'>"
515
		     +"<querytitle>Assessment-List</querytitle>"
516
517
		     +"<returndoctype>edml://ecoinformatics.org/edml</returndoctype>"
518
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                      +"<returnfield>assessment/title</returnfield>"
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                      +"<returnfield>assessment/@id</returnfield>"
521
                      +"<returnfield>assessment/duration</returnfield>"
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           			  +"<returnfield>dataset/dataTable/entityName</returnfield>"
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                      +"<returnfield>lom/general/title/string</returnfield>"
524
                      +"<returnfield>lom/general/keyword/string</returnfield>"
525
                      +"<returnfield>individualName/surName</returnfield>"
526
                      +"<returnfield>organizationName</returnfield>"
527
528
                      +"<returnfield>assessmentItems/assessmentItem/assessmentItemId</returnfield>";
529
530
		    if (assessmentIds.length > 0) {
531
			    query += "<querygroup operator='UNION'>";
532
533
			    //add the assessmentId if included
534
			    for (var i=0; i < assessmentIds.length; i++) {
535
				    query +=
536
				     		"<queryterm searchmode='equals' casesensitive='false'>"
537
				                  +"<value>"
538
				                  + assessmentIds[i]
539
				                  +"</value>"
540
				                  +"<pathexpr>@packageId</pathexpr>"
541
				          +"</queryterm>";
542
				}
543
			    //close the query group
544
			     query +=
545
			     "</querygroup>";
546
			}
547
548
		query += "</pathquery>";
549
550
	return query;
551
}
552
553 4377 leinfelder
function callAjax(metacatURL, myQuery, qfmt, divId) {
554 4290 leinfelder
555
	//alert("calling ajax: " + metacatURL);
556
	//alert("myQuery: " + myQuery);
557
558
	//var myRequest = new Ajax.Request(
559
	var myUpdate = new Ajax.Updater(
560 4377 leinfelder
		divId,
561 4290 leinfelder
		metacatURL,
562
		{	method: 'post',
563
			parameters: { action: 'squery', qformat: qfmt, query: myQuery},
564
			evalScripts: true,
565
			//onSuccess: function(transport) {alert('success: ' + transport.status);},
566
			onFailure: function(transport) {alert('failure making ajax call');}
567
		 });
568
569
	 //alert("done calling ajax");
570 4495 leinfelder
}
571
function getIframeDocument(iframeId) {
572
	//look up the document
573
	var iframe = window.document.getElementById(iframeId);
574
	var doc = null;
575
	if (iframe.contentDocument) {
576
		doc = iframe.contentDocument;
577
	}
578
	else {
579
		doc = iframe.contentWindow.document;
580
	}
581
	return doc;
582
}