function prepare_pdf_record($id)
{
global $db;
$record = get_pdf_info($id);
$record['tags'] = find_tags_for_pdf($id);
$record['DT_RowId'] = "row_{$id}";
// needed for datatable plugin
return $record;
}
function merge_pdf_metadata($pdf_ids, $path)
{
if (count($pdf_ids) < 2) {
err_bad_input_format("expected at least 2 pdf ids");
}
// validate pdf arguments and gather merged pdf attributes
$attributes = array();
$tags = array();
$total_pages = 0;
foreach ($pdf_ids as $pdf_id) {
$pdf = get_pdf_info($pdf_id);
if (!$pdf) {
err_bad_input_data('pdfid', $pdf_id, 'not a valid pdf id');
}
if (!isset($attributes['title']) && $pdf['title']) {
$attributes['title'] = $pdf['title'];
}
if (!isset($attributes['date']) && $pdf['date']) {
$attributes['date'] = $pdf['date'];
}
if (!isset($attributes['origin']) && $pdf['origin']) {
$attributes['origin'] = $pdf['origin'];
}
if (!isset($attributes['recipient']) && $pdf['recipient']) {
$attributes['recipient'] = $pdf['recipient'];
}
$tags = array_unique(array_merge($tags, find_tags_for_pdf($pdf_id)));
}
foreach ($pdf_ids as $pdf_id) {
delete_pdf_metadata($pdf_id);
}
$new_id = add_pdf_to_db($path, $attributes);
foreach ($tags as $tag) {
tag_pdf($new_id, $tag);
}
if (!$new_id) {
err_internal("could not insert merged file to db");
}
return $new_id;
}
