mirror of https://github.com/apache/lucene.git
88 lines
2.3 KiB
JavaScript
88 lines
2.3 KiB
JavaScript
// Lucene Search Query Constructor
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// Author: Kelvin Tan (kelvin@relevanz.com)
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// Change this according to what you use to name the field modifiers in your form.
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// e.g. with the field "name", the modifier will be called "nameModifier"
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var modifierSuffix = 'Modifier';
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// Do you wish the query to be displayed as an alert box?
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var debug = true;
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// Do you wish the function to submit the form upon query construction?
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var submitOnConstruction = true;
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// prefix modifier for boolean AND queries
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var AND_MODIFIER = '+';
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// prefix modifier for boolean NOT queries
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var NOT_MODIFIER = '-';
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// prefix modifier for boolean OR queries
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var OR_MODIFIER = '';
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// default prefix modifier for boolean queries
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var DEFAULT_MODIFIER = OR_MODIFIER;
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// Constructs the query
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// @param query Form field to represent the constructed query to be submitted
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function doMakeQuery( query )
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{
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var frm = query.form;
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var formElements = frm.elements;
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query.value = '';
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for(var i=0; i<formElements.length; i++)
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{
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var element = formElements[i];
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var elementName = element.name;
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var elementValue = element.value;
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if(elementValue.length > 0)
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{
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for(var j=0; j<formElements.length; j++)
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{
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var subElement = formElements[j];
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if(subElement.name == (elementName + modifierSuffix))
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{
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var subElementValue = subElement.options[subElement.selectedIndex].value;
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if(subElementValue == 'And')
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{
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addFieldWithModifier(query, AND_MODIFIER, elementName, elementValue);
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}
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else if(subElementValue == 'Not')
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{
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addFieldWithModifier(query, NOT_MODIFIER, elementName, elementValue);
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}
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else if(subElementValue == 'Or')
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{
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addFieldWithModifier(query, OR_MODIFIER, elementName, elementValue);
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}
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else
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{
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addFieldWithModifier(query, DEFAULT_MODIFIER, elementName, elementValue);
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}
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}
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}
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}
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}
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if(debug)
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{
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alert('Query:' + query.value);
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}
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if(submitOnConstruction)
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{
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frm.submit();
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}
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}
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function addFieldWithModifier(query, modifier, field, fieldValue)
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{
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if(query.value.length == 0)
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{
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query.value = modifier + '(' + field + ':(' + fieldValue + '))';
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}
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else
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{
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query.value = query.value + ' ' + modifier + '(' + field + ':(' + fieldValue + '))';
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}
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} |