neal
/
Typica


			
				
					
						
						
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							<window id="fypurchase">
	<reporttitle>Purchase:->Coffee Purchase Previous Years Comparison</reporttitle>
	<layout type="vertical">
		<layout type="horizontal">
			<label>Start Date:</label>
			<calendar id="startdate" />
			<label>End Date:</label>
			<calendar id="enddate" />
			<label>Weight Unit:</label>
			<sqldrop id="unit" />
			<stretch />
		</layout>
		<webview id="report" />
	</layout>
	<menu name="File">
		<item id="print" shortcut="Ctrl+P">Print...</item>
	</menu>
	<program>
		<![CDATA[
			this.windowTitle = "Typica - Coffee Purchase Previous Years Comparison";
			/* Set starting year to the first year on record. */
			var startDateField = findChildObject(this, 'startdate');
			var query = new QSqlQuery();
			query.exec("SELECT EXTRACT(YEAR FROM time) FROM purchase WHERE time = (SELECT min(time) FROM purchase)");
			query.next();
			startDateField.setDate(query.value(0), 1, 1);
			/* Set ending year to the current year. */
			var endDateField = findChildObject(this, 'enddate');
			endDateField.setDate(endDateField.year(), 12, 31);
			/* Enable printing */
			var view = findChildObject(this, 'report');
			var printMenu = findChildObject(this, 'print');
			printMenu.triggered.connect(function() {
				view.print();
			});
			/* Add units to unit selector and enable functionality */
			var unitBox = findChildObject(this, 'unit');
			unitBox.addItem("Kg");
			unitBox.addItem("Lb");
			unitBox.currentIndex = QSettings.value("script/report_unit", 1);
			unitBox['currentIndexChanged(int)'].connect(function() {
				QSettings.setValue("script/report_unit", unitBox.currentIndex);
				refresh();
			});
			/* Generate report */
			function refresh() {
				var buffer = new QBuffer;
				buffer.open(3);
				var output = new XmlWriter(buffer);
				output.writeStartDocument("1.0");
				output.writeDTD('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg.dtd">');
                output.writeStartElement("html");
                output.writeAttribute("xmlns", "http://www.w3.org/1999/xhtml");
                output.writeStartElement("head");
				output.writeTextElement("title", "Coffee Purchase Previous Years Comparison");
				output.writeEndElement();
				output.writeStartElement("body");
				output.writeTextElement("h1", "Coffee Purchase Previous Years Comparison");
				output.writeStartElement("table");
				output.writeAttribute("style", "page-break-after: auto; text-align: left");
				output.writeAttribute("rules", "groups");
				output.writeAttribute("cellpadding", "3px");
				output.writeStartElement("thead");
				output.writeStartElement("tr");
				output.writeEmptyElement("th");
				output.writeTextElement("th", "Sacks Purchased");
				switch(unitBox.currentIndex) {
					case 0:
						output.writeTextElement("th", "Kilos Purchased");
						break;
					case 1:
						output.writeTextElement("th", "Pounds Purchased");
						break;
				}
				output.writeTextElement("th", "Cost");
				output.writeEndElement(); //tr
				output.writeEndElement(); //thead
				output.writeStartElement("tbody");
				var sacktotal = 0;
				var unittotal = 0;
				var costtotal = 0;
				for(var i = startDateField.year(); i <= endDateField.year(); i++)
				{
					output.writeStartElement("tr");
					output.writeAttribute("id", "y"+i);
					var q = "SELECT sum(quantity/(SELECT conversion FROM lb_bag_conversion WHERE item = purchase.item)), (sum(quantity) / :conversion)::numeric(12,2), sum(cost*quantity)::numeric(12,2) FROM purchase WHERE time >= '" + i + "-01-01' AND time < '" + (i+1) + "-01-01'";
					query.prepare(q);
					query.bind(":conversion", unitBox.currentIndex == 0 ? 2.2 : 1);
					query.exec();
					query.next();
					output.writeStartElement("th");
					output.writeCharacters(i);
					output.writeEndElement(); //th
					output.writeTextElement("td", query.value(0));
					output.writeTextElement("td", query.value(1));
					output.writeTextElement("td", Number(query.value(2)).toFixed(2));
					sacktotal += Number(query.value(0));
					unittotal += Number(query.value(1));
					costtotal += Number(query.value(2));
					output.writeEndElement(); //tr
				}
				output.writeEndElement(); //tbody
				output.writeStartElement("tfoot");
				output.writeTextElement("th", "Totals:");
				output.writeTextElement("td", sacktotal);
				output.writeTextElement("td", unittotal.toFixed(2));
				output.writeTextElement("td", costtotal.toFixed(2));
				output.writeEndElement(); //tfoot
				output.writeEndElement(); //table
				output.writeEndElement(); //body
				output.writeEndElement(); //html
				output.writeEndDocument();
				view.setContent(buffer);
				buffer.close();
			}
			refresh();
			/* Update report as needed. */
			startDateField.dateChanged.connect(function() {
				refresh();
			});
			endDateField.dateChanged.connect(function() {
				refresh();
			});
		]]>
	</program>
</window>