Production:->Cost of Green Coffee for Roasted Coffee
');
output.writeStartElement("html");
output.writeAttribute("xmlns", "http://www.w3.org/1999/xhtml");
output.writeStartElement("head");
output.writeTextElement("title", "Cost of Green Coffee for Roasted Coffee");
output.writeEndElement();
output.writeStartElement("body");
output.writeTextElement("h1", "Cost of Green Coffee for Roasted Coffee");
var query = new QSqlQuery();
query.exec("SELECT item, (SELECT name FROM items WHERE id = item) AS name FROM current_items ORDER BY name");
var roastedItems = new Array();
var roastedNames = new Array();
while(query.next()) {
roastedItems.push(query.value(0));
roastedNames.push(query.value(1));
}
var recipes = new Array();
var recipeQuantities = new Array();
query.prepare("SELECT unroasted_id, unroasted_quantity FROM roasting_log WHERE roasted_id = :item AND time = (SELECT max(time) FROM roasting_log WHERE roasted_id = :item2)");
for(var i = 0; i < roastedItems.length; i++) {
query.bind("item", roastedItems[i]);
query.bind("item2", roastedItems[i]);
query.exec();
if(query.next()) {
recipes.push(query.value(0));
recipeQuantities.push(query.value(1));
} else {
print("Error 1");
}
}
query.prepare("SELECT 1 / (-1 * (min((unroasted_total_quantity - roasted_quantity) / unroasted_total_quantity) - 1)), 1 / (-1 * (max((unroasted_total_quantity - roasted_quantity)/unroasted_total_quantity) - 1)), 1 / (-1 * (avg((unroasted_total_quantity - roasted_quantity) / unroasted_total_quantity) - 1)) FROM roasting_log WHERE roasted_id = :ri AND unroasted_id = :gi AND unroasted_total_quantity > 0 AND roasted_quantity > 0 AND approval = true");
var mins = new Array();
var maxes = new Array();
var means = new Array();
for(var i = 0; i < roastedItems.length; i++) {
query.bind(":ri", Number(roastedItems[i]));
query.bind(":gi", recipes[i]);
query.exec();
if(query.next()) {
mins.push(query.value(0));
maxes.push(query.value(1));
means.push(query.value(2));
} else {
print("Error 2");
}
}
var proportionalCosts = new Array();
query.prepare("SELECT cost * :proportion FROM purchase WHERE item = :id");
for(var i = 0; i < roastedItems.length; i++) {
greens = sqlToArray(recipes[i]);
weights = sqlToArray(recipeQuantities[i]);
proportions = new Array();
quantitySum = weights.reduce(function(p, c) {
return p + c;
});
for(var j = 0; j < weights.length; j++) {
proportions.push(weights[j]/quantitySum);
}
partialSum = 0;
for(var j = 0; j < greens.length; j++) {
query.bind(":proportion", proportions[j]);
query.bind(":id", greens[j]);
query.exec();
if(query.next()) {
partialSum += query.value(0);
} else {
print("Error 3");
}
}
proportionalCosts.push(partialSum);
}
var minCosts = new Array();
var maxCosts = new Array();
var meanCosts = new Array();
for(var i = 0; i < roastedItems.length; i++) {
minCosts.push(proportionalCosts[i] * mins[i]);
maxCosts.push(proportionalCosts[i] * maxes[i]);
meanCosts.push(proportionalCosts[i] * means[i]);
}
output.writeStartElement("table");
output.writeAttribute("rules", "groups");
output.writeAttribute("cellpadding", "3px");
output.writeStartElement("thead");
output.writeStartElement("tr");
output.writeTextElement("th", "Coffee");
output.writeTextElement("th", "Minimum Cost");
output.writeTextElement("th", "Maximum Cost");
output.writeTextElement("th", "Mean Cost");
output.writeEndElement();
output.writeEndElement();
output.writeStartElement("tbody");
for(var i = 0; i < roastedItems.length; i++) {
output.writeStartElement("tr");
output.writeTextElement("td", roastedNames[i]);
output.writeTextElement("td", Number(minCosts[i]).toFixed(2));
output.writeTextElement("td", Number(maxCosts[i]).toFixed(2));
output.writeTextElement("td", Number(meanCosts[i]).toFixed(2));
output.writeEndElement();
}
output.writeEndElement();
output.writeEndElement();
output.writeEndElement();
output.writeEndElement();
output.writeEndDocument();
report.setContent(buffer);
buffer.close();
};
refresh();
]]>