<?php
@ob_start();
ob_implicit_flush(true);
ob_end_flush();
@set_time_limit(60*60); // 1 hour.
use eftec\DocumentStoreOne\DocumentStoreOne;
/**
* It map-reduce invoices according the customers.
* @author Jorge Castro Castillo [email protected]
* @license LGPLv3
*/
include "../lib/DocumentStoreOne.php";
include "modelinvoices/Models.php";
echo "<h1>Map Reduce</h1>";
echo "We have several invoices, we are mapping an invoice with a customer, so we could consult all the invoices x customer without reading all the invoices<br>";
echo "The limit of this strategy is the size of the file and it must be open on memory<br>";
echo "generating map reduce for invoice per customer...<br>";
@flush();
@ob_flush();
$t1=microtime(true);
try {
$flatcon = new DocumentStoreOne(dirname(__FILE__) . "/base", 'invoices');
} catch (Exception $e) {
die("Unable to create document store");
}
$listInvoices=$flatcon->select();
$customers=[]; // It's an example to mapreduces. In this case, it reduces the invoice per customers so it generates a customer x invoice table
$igbinary=function_exists('igbinary_serialize');
foreach($listInvoices as $i) {
if ($i!='genseq_seq') { // we skip the sequence
if ($igbinary) {
$inv=igbinary_unserialize($flatcon->get($i));
} else {
$invTmp = json_decode($flatcon->get($i)); // $invTmp is stdclass
$inv = new Invoice();
DocumentStoreOne::fixCast($inv, $invTmp); // $inv is a Invoice class. However, $inv->details is a stdClass[]
}
$customers[$inv->customer->name][] = $i;
}
}
if ($igbinary) {
$flatcon->collection("invoicemap")->insertOrUpdate("invoicexcustomer", igbinary_serialize($customers));
} else {
$flatcon->collection("invoicemap")->insertOrUpdate("invoicexcustomer", json_encode($customers));
}
$t2=microtime(true);
echo "store mapreduce microseconds :".($t2-$t1)." seconds.<br>";
echo "<hr>";
echo "<pre>";
echo json_encode($customers,JSON_PRETTY_PRINT);
echo "</pre>";
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