Use cursor to export data to use less memory
[contractdashboard.git] / exportData.csv.php
blob:a/exportData.csv.php -> blob:b/exportData.csv.php
<?php <?php
   
include_once("./lib/common.inc.php"); include_once("./lib/common.inc.php");
setlocale(LC_CTYPE, 'C'); setlocale(LC_CTYPE, 'C');
// source: http://stackoverflow.com/questions/81934/easy-way-to-export-a-sql-table-without-access-to-the-server-or-phpmyadmin#81951 // source: http://stackoverflow.com/questions/81934/easy-way-to-export-a-sql-table-without-access-to-the-server-or-phpmyadmin#81951
   
  $unspsc = Array();
  $unspscresult = $conn->prepare('select * from "UNSPSCcategories" where "UNSPSC"::text like \'%00000\';');
  $unspscresult->execute();
  foreach ($unspscresult->fetchAll() as $row) {
  $unspsc[$row['UNSPSC']] = $row['Title'];
  }
  /*SELECT count(*), extract("week" from "publishDate") as week,extract("year" from "publishDate") as year
  FROM contractnotice
  where "childCN" is null group by week, year order by year, week*/
$query = $conn->prepare(' $query = $conn->prepare('
SELECT "CNID",contractnotice."agencyName",agency.abn as "agencyABN",EXTRACT(EPOCH FROM "publishDate") as "publishDate",EXTRACT(EPOCH FROM "contractStart") as "contractStart",EXTRACT(EPOCH FROM "contractEnd") as "contractEnd",value,description,"procurementMethod",category,"categoryUNSPSC", SELECT "CNID",contractnotice."agencyName",agency_nametoabn.abn as "agencyABN",
"supplierABN","supplierName", EXTRACT(EPOCH FROM "publishDate") as "publishDate",
( EXTRACT(EPOCH FROM "contractStart") as "contractStart",
case when "supplierABN" != 0 THEN "supplierABN"::text ELSE "supplierName" END) as supplierID, EXTRACT(EPOCH FROM "contractEnd") as "contractEnd",
  value,description,category,
  "supplierName",(case when "supplierABN" != 0 THEN "supplierABN"::text ELSE "supplierName" END) as supplierID,
(\'https://www.tenders.gov.au/?event=public.advancedsearch.keyword&keyword=CN\'::text || "CNID"::text) as sourceURL (\'https://www.tenders.gov.au/?event=public.advancedsearch.keyword&keyword=CN\'::text || "CNID"::text) as sourceURL
FROM contractnotice join agency on contractnotice."agencyName"=agency."agencyName" where "childCN" = 0' FROM contractnotice join agency_nametoabn on contractnotice."agencyName"=agency_nametoabn."agencyName"
, array(PDO::ATTR_CURSOR => PDO::FETCH_ORI_NEXT)); where "childCN" is null'
// "supplierCity","supplierPostcode","supplierCountry","contactPostcode", , array(PDO::ATTR_CURSOR => PDO::FETCH_ORI_NEXT));
// (substr( "categoryUNSPSC"::text, 0, 2 ) || \'0000000\'::text) as "categoryUNSPSClv1", "categoryUNSPSC", (substr( "categoryUNSPSC"::text, 0, 3 ) || \'000000\'::text) as "categoryUNSPSClv2" "categoryUNSPSC", (substr( "categoryUNSPSC"::text, 0, 4 ) || \'00000\'::text as "categoryUNSPSClv3")  
$query->execute(); $query->execute();
if (!$query) { $errors = $conn->errorInfo();
databaseError($conn->errorInfo()); if ($errors[2] != "") {
die('Couldn\'t fetch records'); die("Export terminated, db error" . print_r($errors, true));
} }
   
$num_fields = $query->columnCount(); $num_fields = $query->columnCount();
$headers = array(); $headers = Array();
for ($i = 0; $i < $num_fields; $i++) { for ($i = 0; $i < $num_fields; $i++) { // for each column in query, make a CSV header
$meta = $query->getColumnMeta($i); $meta = $query->getColumnMeta($i);
$headers[] = $meta['name']; $headers[] = $meta['name'];
} }
$fp = fopen('php://output', 'w'); $fp = fopen('php://output', 'w');
if ($fp && $query) { if ($fp && $query) {
header('Content-Type: text/csv'); header('Content-Type: text/csv');
header('Content-Disposition: attachment; filename="export.'.date("c").'.csv"'); header('Content-Disposition: attachment; filename="export.' . date("c") . '.csv"');
header('Pragma: no-cache'); header('Pragma: no-cache');
header('Expires: 0'); header('Expires: 0');
fputcsv($fp, $headers); fputcsv($fp, $headers);
while ($row = $query->fetch(PDO::FETCH_NUM, PDO::FETCH_ORI_NEXT)) { while ($row = $query->fetch(PDO::FETCH_NUM, PDO::FETCH_ORI_NEXT)) {
foreach ($row as $key => &$colvalue) { foreach ($row as $key => &$colvalue) {
   
$colvalue = preg_replace( '/[^[:print:]]/', '', $colvalue = preg_replace('/[^[:print:]]/', '', utf8_encode($colvalue));
utf8_encode($colvalue)); if ($headers[$key] == "publishDate" || $headers[$key] == "contractStart"
if ($headers[$key] == "publishDate" || $headers[$key] == "contractStart" || $headers[$key] == "contractEnd") {
|| $headers[$key] == "contractEnd") { $colvalue = date("Y-m-d", $colvalue);
$colvalue = date("Y-m-d",$colvalue); }
} /* if ($headers[$key] == "CNID") {
} $colvalue = str_replace("A","", $colvalue);
  }*/
  if ($headers[$key] == "cat1" || $headers[$key] == "cat2"
  || $headers[$key] == "cat3") {
  $colvalue = $unspsc[$colvalue];
  }
  }
fputcsv($fp, array_values($row)); fputcsv($fp, array_values($row));
} }
die; die;
} }
?> ?>