Production:->Previous Year Production Comparison
7
');
output.writeStartElement("html");
output.writeAttribute("xmlns", "http://www.w3.org/1999/xhtml");
output.writeStartElement("head");
output.writeTextElement("title", "Previous Year Production Comparison");
output.writeEndElement();
output.writeStartElement("body");
output.writeTextElement("h1", "Previous Year Production Comparison");
output.writeTextElement("p", "This report provides an itemized and overall comparison of roasted coffee production for the dates specified with those dates in the previous year. A chart of this data along with percent change and rolling average of the percent change is also produced.");
output.writeStartElement("table");
output.writeAttribute("style", "page-break-after:auto;");
output.writeAttribute("rules", "groups");
output.writeAttribute("cellpadding", "3px");
output.writeStartElement("thead");
output.writeStartElement("tr");
output.writeTextElement("th", "Coffee");
switch(unitBox.currentIndex) {
case 0:
output.writeTextElement("th", "Previous (Kg)");
output.writeTextElement("th", "Current (Kg)");
output.writeTextElement("th", "Change (Kg)");
break;
case 1:
output.writeTextElement("th", "Previous (Lb)");
output.writeTextElement("th", "Current (Lb)");
output.writeTextElement("th", "Change (Lb)");
break;
}
output.writeEndElement();
output.writeEndElement();
output.writeStartElement("tbody");
var query = new QSqlQuery();
query.exec("START TRANSACTION");
var curStartDate = "'"+startDateField.year()+"-"+startDateField.month()+"-"+startDateField.day()+"'";
query.exec("SELECT "+curStartDate+"::date - interval '1 year', '"+endDateField.year()+"-"+endDateField.month()+"-"+endDateField.day()+"'::date - interval '1 year' + interval '1 day', '"+endDateField.year()+"-"+endDateField.month()+"-"+endDateField.day()+"'::date + interval '1 day'");
query.next();
var curEndDate = "'"+query.value(2)+"'";
var prevStartDate = "'"+query.value(0)+"'";
var prevEndDate = "'"+query.value(1)+"'";
var q = "CREATE TEMPORARY TABLE previous ON COMMIT DROP AS SELECT roasted_id, sum(roasted_quantity) AS p FROM roasting_log WHERE time > "+prevStartDate+" AND time < "+prevEndDate+" AND roasted_id IS NOT NULL GROUP BY roasted_id";
query.exec(q);
q = "CREATE TEMPORARY TABLE current ON COMMIT DROP AS SELECT roasted_id, sum(roasted_quantity) AS c FROM roasting_log WHERE time > "+curStartDate+" AND time < "+curEndDate+" AND roasted_id IS NOT NULL GROUP BY roasted_id";
query.exec(q);
query.exec("INSERT INTO previous SELECT roasted_id, 0 FROM current WHERE roasted_id NOT IN (SELECT roasted_id FROM previous)");
query.exec("INSERT INTO current SELECT roasted_id, 0 FROM previous WHERE roasted_id NOT IN (SELECT roasted_id FROM current)");
query.exec("CREATE TEMPORARY TABLE comp ON COMMIT DROP AS SELECT previous.roasted_id, p, c FROM previous LEFT OUTER JOIN current ON previous.roasted_id = current.roasted_id");
query.exec("SELECT (SELECT name FROM items WHERE id = roasted_id) AS name, p, c, (c-p) FROM comp WHERE p > 0 OR c > 0 ORDER BY name");
while(query.next())
{
output.writeStartElement("tr");
output.writeTextElement("td", query.value(0));
output.writeTextElement("td", (query.value(1) / conversion).toFixed(2));
output.writeTextElement("td", (query.value(2) / conversion).toFixed(2));
output.writeTextElement("td", (query.value(3) / conversion).toFixed(2));
output.writeEndElement();
}
output.writeEndElement();
output.writeStartElement("tfoot");
output.writeTextElement("th", "Totals");
query.exec("SELECT sum(p), sum(c), sum(c-p) FROM comp");
query.next();
output.writeTextElement("td", (query.value(0) / conversion).toFixed(2));
output.writeTextElement("td", (query.value(1) / conversion).toFixed(2));
output.writeTextElement("td", (query.value(2) / conversion).toFixed(2));
output.writeEndElement();
query.exec("ABORT");
output.writeEndElement();
output.writeStartElement("p");
output.writeAttribute("style", "page-break-inside: avoid");
output.writeStartElement("svg");
output.writeAttribute("xmlns", "http://www.w3.org/2000/svg");
output.writeAttribute("width", "7.5in");
output.writeAttribute("height", "6.3in");
output.writeStartElement("g");
output.writeAttribute("transform", "translate(0,470)");
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output.writeAttribute("transform", "scale(1,-1)");
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output.writeAttribute("x2", "40");
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output.writeAttribute("y2", "450");
output.writeAttribute("style", "stroke:rgb(0,0,0);stroke-width:1;");
output.writeEndElement();
var q = "SELECT "+curEndDate+"::date - "+curStartDate+"::date";
query.exec(q);
query.next();
var days = query.value(0);
var dates = new Array();
var curpounds = new Array();
var prevpounds = new Array();
var change = new Array();
var avgchange = new Array();
var i;
for(i = 0; i < days; i++)
{
q = "SELECT "+curStartDate+"::date + "+(i+1);
query.exec(q);
query.next();
dates[i] = query.value(0);
q = "SELECT sum(roasted_quantity) FROM roasting_log WHERE time > "+curStartDate+" AND time < '"+dates[i]+"'";
query.exec(q);
if(query.next())
{
curpounds[i] = query.value(0);
}
else
{
curpounds[i] = 0;
}
q = "SELECT sum(roasted_quantity) FROM roasting_log WHERE time > "+curStartDate+"::date - '1 year'::interval AND time < '"+dates[i]+"'::date - '1 year'::interval";
query.exec(q);
if(query.next())
{
prevpounds[i] = query.value(0);
}
else
{
prevpounds[i] = 0;
}
if(curpounds[i] > 0)
{
change[i] = (curpounds[i] - prevpounds[i])/curpounds[i];
}
else
{
if(prevpounds[i] > 0)
{
change[i] = -1;
}
else
{
change[i] = 0;
}
}
if(i > (parseInt(avgField.text)-2))
{
var sum = 0;
var j;
for(j = 0; j < parseInt(avgField.text); j++)
{
sum += change[i-j];
}
avgchange[i] = sum / parseInt(avgField.text);
}
}
// Calculate the domain of the primary y axis.
var maxy1 = 0;
var increment = 100; // Starting increment is 100 Lb.
if(unitBox.currentIndex == 0) {
increment = 110; // Starting increment is 50 Kg if Kg is requested.
}
while(maxy1 < Math.max(curpounds[days - 1], prevpounds[days - 1]))
{
maxy1 += increment;
}
// Calculate the number of grid lines and loosen spacing if there are too many.
var divisions = maxy1 / increment;
while(divisions > 10) {
increment *= 2;
divisions = maxy1 / increment;
}
// Draw y axis grid lines.
var pos = 0;
while(pos <= maxy1)
{
output.writeStartElement("line");
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output.writeEndElement();
pos += increment;
}
var n = Math.min.apply(Math, change);
var m = Math.max.apply(Math, change);
var miny2 = 0;
var maxy2;
if(n < 0)
{
while(miny2 > n)
{
miny2 -= 0.1;
}
maxy2 = miny2;
}
else
{
while(miny2 < n)
{
miny2 += 0.1;
}
miny2 -= 0.1;
maxy2 = miny2;
}
while(maxy2 < m)
{
maxy2 += 0.1;
}
var range = maxy2 - miny2;
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output.writeAttribute("y1", (pos-miny2)*(4.5/(range*100))*10000);
output.writeAttribute("y2", (pos-miny2)*(4.5/(range*100))*10000);
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output.writeEndElement();
pos += 0.1;
}
pos = 0;
while(pos < days)
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output.writeStartElement("line");
output.writeAttribute("x1", 50+((600/(days-1))*pos));
output.writeAttribute("x2", 50+((600/(days-1))*pos));
output.writeAttribute("y1", "-5");
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output.writeEndElement();
pos += 7;
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output.writeStartElement("line");
output.writeAttribute("x1", 50+((600/(days-1))*(days-1)));
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output.writeEndElement();
pos = 1;
while(pos < days)
{
output.writeStartElement("line");
output.writeAttribute("x1", 50+((600/(days-1))*(pos - 1)));
output.writeAttribute("x2", 50+((600/(days-1))*pos));
output.writeAttribute("y1", (prevpounds[pos-1]/maxy1)*450);
output.writeAttribute("y2", (prevpounds[pos]/maxy1)*450);
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output.writeAttribute("x1", 50+((600/(days-1))*(pos-1)));
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output.writeStartElement("line");
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pos++;
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output.writeStartElement("text");
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switch(unitBox.currentIndex) {
case 0:
output.writeCharacters((i / 2.2).toFixed(0));
break;
case 1:
default:
output.writeCharacters(i);
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output.writeEndElement();
i += increment;
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i = miny2;
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output.writeStartElement("text");
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output.writeCharacters(Number(i*100).toFixed(0)+"%");
output.writeEndElement();
i += 0.1;
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i = 0;
while(i <= days-1)
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output.writeStartElement("text");
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output.writeAttribute("transform", "rotate(90 "+(45+((600/(days-1))*i))+",20)");
q = "SELECT ('"+dates[i]+"'::date - '1 day'::interval)::date";
query.exec(q);
query.next();
var ds = query.value(0);
var parts = ds.split("-");
switch(parts[1])
{
case '01':
ds = "January ";
break;
case '02':
ds = "February ";
break;
case '03':
ds = "March ";
break;
case '04':
ds = "April ";
break;
case '05':
ds = "May ";
break;
case '06':
ds = "June ";
break;
case '07':
ds = "July ";
break;
case '08':
ds = "August ";
break;
case '09':
ds = "September ";
break;
case '10':
ds = "October ";
break;
case '11':
ds = "November ";
break;
case '12':
ds = "December ";
break;
}
ds = ds + Number(parts[2]);
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output.writeEndElement();
if(i == days-1)
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break;
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i += 7;
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output.writeStartElement("text");
output.writeAttribute("x", "75");
output.writeAttribute("y", "120");
output.writeAttribute("font-size", "12");
switch(unitBox.currentIndex) {
case 0:
output.writeCharacters("Previous Year Kg");
break;
case 1:
output.writeCharacters("Previous Year Lb");
break;
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output.writeAttribute("y", "120");
output.writeAttribute("font-size", "12");
switch(unitBox.currentIndex) {
case 0:
output.writeCharacters("Current Year Kg");
break;
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output.writeCharacters("Current Year Lb");
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output.writeStartElement("text");
output.writeAttribute("x", "375");
output.writeAttribute("y", "120");
output.writeAttribute("font-size", "12");
output.writeCharacters("% Change");
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output.writeCharacters("Average % Change");
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view.setContent(buffer);
buffer.close();
}
refresh();
startDateField.dateChanged.connect(function() {
refresh();
});
endDateField.dateChanged.connect(function() {
refresh();
});
avgField.editingFinished.connect(function() {
refresh();
});
]]>