ExifTool Forum

NO IPTC TAGS at all is written to the file.
<?php
/*
Plugin Name: Write Metadata
Description: Write Piwigo photo properties (title, description, author, tags) into IPTC fields
Author: plg
Plugin URI: http://piwigo.org/ext/extension_view.php?eid=769
Version: 12.a
*/

// +-----------------------------------------------------------------------+
// | Define plugin constants                                               |
// +-----------------------------------------------------------------------+

defined('WRITE_METADATA_ID') or define('WRITE_METADATA_ID', basename(dirname(__FILE__)));
define('WRITE_METADATA_PATH' , PHPWG_PLUGINS_PATH.basename(dirname(__FILE__)).'/');

// +-----------------------------------------------------------------------+
// | Edit Photo                                                            |
// +-----------------------------------------------------------------------+

add_event_handler('loc_begin_admin_page', 'wm_add_link', 60);
function wm_add_link()
{
 global $template, $page;

 $template->set_prefilter('picture_modify', 'wm_add_link_prefilter');

 if (isset($page['page']) and 'photo' == $page['page'])
 {
   $template->assign(
     'U_WRITEMETADATA',
     get_root_url().'admin.php?page=photo-'.$_GET['image_id'].'-properties&amp;write_metadata=1'
     );
 }
}

function wm_add_link_prefilter($content)
{
 $search = '{if !url_is_remote($PATH)}';
 
 $replacement = '{if !url_is_remote($PATH)}
 <a class="icon-docs" href="{$U_WRITEMETADATA}" title="{\'Write metadata\'|translate}"></a>';

 return str_replace($search, $replacement, $content);
}

add_event_handler('loc_begin_admin_page', 'wm_picture_write_metadata');
function wm_picture_write_metadata()
{
 global $page, $conf;

 load_language('plugin.lang', dirname(__FILE__).'/');
 
 if (isset($page['page']) and 'photo' == $page['page'] and isset($_GET['write_metadata']))
 {
   check_input_parameter('image_id', $_GET, false, PATTERN_ID);
   list($rc, $output) = wm_write_metadata($_GET['image_id']);

   if (count($output) == 0)
   {
     $_SESSION['page_infos'][] = l10n('Metadata written into file');
     redirect(get_root_url().'admin.php?page=photo-'.$_GET['image_id'].'-properties');
   }
   else
   {
     $page['errors'] = array_merge($page['errors'], $output);
   }
 }
}

// +-----------------------------------------------------------------------+
// | Batch Manager                                                         |
// +-----------------------------------------------------------------------+

add_event_handler('loc_begin_element_set_global', 'wm_element_set_global_add_action');
function wm_element_set_global_add_action()
{
 global $template, $page;
 
 $template->set_filename('writeMetadata', realpath(WRITE_METADATA_PATH.'element_set_global_action.tpl'));

 if (isset($_POST['submit']) and $_POST['selectAction'] == 'writeMetadata')
 {
   $page['infos'][] = l10n('Metadata written into file');
 }

 $template->assign(
   array(
     'WM_PWG_TOKEN' => get_pwg_token(),
     )
   );

 $template->append(
   'element_set_global_plugins_actions',
   array(
     'ID' => 'writeMetadata',
     'NAME' => l10n('Write metadata'),
     'CONTENT' => $template->parse('writeMetadata', true),
     )
   );
}

add_event_handler('ws_add_methods', 'wm_add_methods');
function wm_add_methods($arr)
{
 include_once(WRITE_METADATA_PATH.'ws_functions.inc.php');
}

// +-----------------------------------------------------------------------+
// | Common functions                                                      |
// +-----------------------------------------------------------------------+

/**
* inspired by convert_row_to_file_exiftool method in ExportImageMetadata
* class from plugin Tags2File. In plugin write_medata we just skip the
* batch command file, and execute directly on server (much more user
* friendly...).
*/
function wm_write_metadata($image_id)
{
 global $conf, $logger;
 
 $query = '
SELECT
   img.name,
   img.comment,
   img.author,
   img.date_creation,
   img.date_available,
   GROUP_CONCAT(tags.name) AS tags,
   img.path,
   img.representative_ext
 FROM '.IMAGES_TABLE.' AS img
   LEFT OUTER JOIN '.IMAGE_TAG_TABLE.' AS img_tag ON img_tag.image_id = img.id
   LEFT OUTER JOIN '.TAGS_TABLE.' AS tags ON tags.id = img_tag.tag_id
 WHERE img.id = '.$image_id.'
 GROUP BY img.id, img.name, img.comment, img.author, img.path, img.representative_ext
;';
 $result = pwg_query($query);
 $row = pwg_db_fetch_assoc($result);

 $name = wm_prepare_string($row['name'], 500);
 $description = wm_prepare_string($row['comment'], 10000);
 $author = wm_prepare_string($row['author'], 500);
 $date_creation = wm_prepare_string($row['date_creation'], 50);
 $date_available = wm_prepare_string($row['date_available'], 50);


 $command = isset($conf['exiftool_path']) ? $conf['exiftool_path'] : 'exiftool -overwrite_original';
 $command.= ' -q';

 if (strlen($name) > 0)
 {
   # 2#105 in iptcparse($imginfo['APP13'])
   $command.= ' -m -codedcharacterset=utf8 -IPTC:Headline="'.$name.'"';

   # 2#005 in iptcparse($imginfo['APP13'])
   $command.= ' -m -codedcharacterset=utf8 -IPTC:ObjectName="'.wm_cutString($name, 64).'"';
 }

 if (strlen($description) > 0)
 {
   # 2#120 in iptcparse($imginfo['APP13'])
   $command.= ' -m -codedcharacterset=utf8 -IPTC:Caption-Abstract="'.$description.'"';
 }

 if (strlen($date_creation) > 0)
 {
   # 2#055 in iptcparse($imginfo['APP13'])
   $command.= ' -IPTC:DateCreated="'.$date_creation.'"';
 }

 if (strlen($date_available) > 0)
 {
   # 2#030 in iptcparse($imginfo['APP13'])
   $command.= ' -IPTC:ReleaseDate="'.$date_available.'"';
 }

 if (strlen($author) > 0)
 {
   # 2#080 in iptcparse($imginfo['APP13'])
   $iptc_field = 'By-line';

   if (
     $conf['use_iptc']
     and isset($conf['use_iptc_mapping']['author'])
     and '2#122' == $conf['use_iptc_mapping']['author']
     )
   {
     # 2#122 in iptcparse($imginfo['APP13'])
     $iptc_field = 'Writer-Editor';
   }

   $command.= ' -m -codedcharacterset=utf8 -IPTC:'.$iptc_field.'="'.$author.'"';
 }
 
 if (strlen($row['tags']) > 0)
 {
   $tags = explode(',', $row['tags']);
   foreach ($tags as $tag)
   {
     $tag = wm_prepare_string($tag, 64);

     # 2#025 in iptcparse($imginfo['APP13'])
     $command.= ' -m -codedcharacterset=utf8 -IPTC:Keywords="'.$tag.'"';
   }
 }

 $command.= ' "'.$row['path'].'"';
 $command.= ' 2>&1';
 // echo $command;
 $logger->info(__FUNCTION__.' command = '.$command);

 $exec_return = exec($command, $output, $rc);
 // echo '$exec_return = '.$exec_return.'<br>';
 // echo '<pre>'; print_r($output); echo '</pre>';

 // as derivatives may contain metadata, they must be reset
 delete_element_derivatives($row);

 return array($rc, $output);
}

function wm_prepare_string($string, $maxLen)
{
 return wm_cutString(
   wm_explode_description(
     wm_decode_html_string_to_unicode($string)
     ),
   $maxLen
   );
}

function wm_cutString($description, $maxLen)
{
 if (strlen($description) > $maxLen)
 {
   $description = substr($description, 0, $maxLen);
 }
 return $description;
}

function wm_explode_description($description)
{
 return str_replace(
   array('<br>', '<br />', "\n", "\r"),
   array('', '', '', ''),
   $description
   );
}

function wm_decode_html_string_to_unicode($string)
{
 if (isset($string) and strlen($string) > 0)
 {
   $string = html_entity_decode(trim($string), ENT_QUOTES, 'UTF8');
   $string = stripslashes($string);
 }
 else
 {
   $string = '';
 }
 
 return($string);
}
?>



I'm not sure what you expect us to do? Install Piwigo and debug your 260+ lines of code?  Without knowing what your error messages are?

OK! I Guess it's too complicated for you guys!  8)

Cant you tell me where and/or how to check the log files for exiftool installed on CentoOS 9 Stream ?

ExifTool doesn't create log files.

- Phil

Ok!? So how am I going to find out the error then? ::)

Run the exiftool command from a command shell.

- Phil