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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Abstract class for the download transformations plugins
*
* @package PhpMyAdmin-Transformations
* @subpackage Download
*/
if (! defined('PHPMYADMIN')) {
exit;
}
/* Get the transformations interface */
require_once 'libraries/plugins/TransformationsPlugin.class.php';
/**
* Provides common methods for all of the download transformations plugins.
*
* @package PhpMyAdmin
*/
abstract class DownloadTransformationsPlugin extends TransformationsPlugin
{
/**
* Gets the transformation description of the specific plugin
*
* @return string
*/
public static function getInfo()
{
return __(
'Displays a link to download the binary data of the column. You can'
. ' use the first option to specify the filename, or use the second'
. ' option as the name of a column which contains the filename. If'
. ' you use the second option, you need to set the first option to'
. ' the empty string.'
);
}
/**
* Does the actual work of each specific transformations plugin.
*
* @param string $buffer text to be transformed
* @param array $options transformation options
* @param string $meta meta information
*
* @return string
*/
public function applyTransformation($buffer, $options = array(), $meta = '')
{
global $row, $fields_meta;
if (isset($options[0]) && !empty($options[0])) {
$cn = $options[0]; // filename
} else {
if (isset($options[1]) && !empty($options[1])) {
foreach ($fields_meta as $key => $val) {
if ($val->name == $options[1]) {
$pos = $key;
break;
}
}
if (isset($pos)) {
$cn = $row[$pos];
}
}
if (empty($cn)) {
$cn = 'binary_file.dat';
}
}
return sprintf(
'<a href="transformation_wrapper.php%s&ct=application'
. '/octet-stream&cn=%s" title="%s">%s</a>',
$options['wrapper_link'],
urlencode($cn),
htmlspecialchars($cn),
htmlspecialchars($cn)
);
}
/**
* This method is called when any PluginManager to which the observer
* is attached calls PluginManager::notify()
*
* @param SplSubject $subject The PluginManager notifying the observer
* of an update.
*
* @todo implement
* @return void
*/
public function update (SplSubject $subject)
{
;
}
/* ~~~~~~~~~~~~~~~~~~~~ Getters and Setters ~~~~~~~~~~~~~~~~~~~~ */
/**
* Gets the transformation name of the specific plugin
*
* @return string
*/
public static function getName()
{
return "Download";
}
}
?>
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