Archon regenerate thumbnails

archon_regenerate_thumbnails.php

<?php
@include_once('patches.php'); // This has some custom patches for our Archon.
require_once('includes.inc.php');
require_once("packages/digitallibrary/lib/file.inc.php");

$query = "select id, length(FileContents) as fcsize, length(FilePreviewLong) as fplsize, length(FilePreviewShort) as fpssize from tblDigitalLibrary_Files where id=?"; // and (length(FileContents)=length(FilePreviewLong) or length(FileContents)=length(FilePreviewShort))";
$prep = $_ARCHON->mdb2->prepare($query, array('integer'), MDB2_PREPARE_RESULT);

function needsResizing($id) {
  global $prep;
  $result = $prep->execute($id);
  if(pear::isError($result)) {
    echo("on ID $id: " . $result->getMessage() . "\n");
    return false;
  }
  $row = $result->fetchRow();
  $result->free();

  $fcsize = intval($row["fcsize"]);
  $fplsize = intval($row["fplsize"]);
  $fpssize = intval($row["fpssize"]);

  // if image is smaller (width and height), long preview will be same as filecontents
  // (see createImageThumbnail in Archon source)
  return
    (($fcsize == $fplsize) && ($fcsize == $fpssize)) // thumbnail data same (probably) as filecontents
    ||
    ($fplsize == 0 || $fpssize == 0); // no thumbnail data
}

$report = fopen("regenerate_thumbnails_report.txt", "w");

$arrDigitalContent = $_ARCHON->searchDigitalContent("", SEARCH_DIGITALCONTENT, 0, 0, 0, 0, 0, 0, 0, $Limit = 99999999);
foreach($arrDigitalContent as $ID => $objDigitalContent) {
  if(!$objDigitalContent->Files)
    $objDigitalContent->dbLoadFiles();
  foreach($objDigitalContent->Files as $ID => $objFile) {
    //print_r($objFile);
    if($objFile->FileType->FileType == 'JPEG Image') {
      $nr = needsResizing($ID);
      $nrt = $nr ? "true" : "false";
      printf("%s\t%s\n", $ID, $nrt);
      fprintf($report, "%s\t%s\n", $ID, $nrt);
      if ($nr) {
        if (true) {
          $objFile->dbLoad();
          $objFile->fopen();
          $objFile->FileContents = $objFile->fread(pow(2,32));
          $objFile->TempFileName = "/tmp/asdf";
          $fp = fopen($objFile->TempFileName, "w");
          fwrite($fp, $objFile->FileContents);
          fclose($fp);
          $objFile->dbStore();
        }
      }
    } else {
      printf("%s\t(not a JPEG)\n", $ID, $nrt);
    }
  }
}

fclose($report);
?>