drupal_get_filename
includes/bootstrap.inc, строка 373
- Версии
- 5 – 6
drupal_get_filename($type, $name, $filename = NULL)
Returns and optionally sets the filename for a system item (module, theme, etc.). The filename, whether provided, cached, or retrieved from the database, is only returned if the file exists.
This function plays a key role in allowing Drupal's resources (modules
and themes) to be located in different places depending on a site's
configuration. For example, a module 'foo'
may legally be be located
in any of these three places:
modules/foo/foo.module sites/all/modules/foo/foo.module sites/example.com/modules/foo/foo.module
Calling drupal_get_filename('module'
, 'foo'
) will give you one of
the above, depending on where the module is located.
Параметры
$type
Типа элемента (напр., тема, движок темизации, модуль).
$name
The name of the item for which the filename is requested.
$filename
The filename of the item if it is to be set explicitly rather
than by consulting the database.
Возвращаемое значение
The filename of the requested item.
Код
<?php
function drupal_get_filename($type, $name, $filename = NULL) {
static $files = array();
global $active_db;
if (!isset($files[$type])) {
$files[$type] = array();
}
if (!empty($filename) && file_exists($filename)) {
$files[$type][$name] = $filename;
}
elseif (isset($files[$type][$name])) {
// nothing
}
// Verify that we have an active database connection, before querying
// the database. This is required because this function is called both
// before we have a database connection (i.e. during installation) and
// when a database connection fails.
elseif ($active_db && (($file = db_result(db_query("SELECT filename FROM {system} WHERE name = '%s' AND type = '%s'", $name, $type))) && file_exists($file))) {
$files[$type][$name] = $file;
}
else {
// Fallback to searching the filesystem if the database connection is
// not established or the requested file is not found.
$config = conf_path();
$dir = (($type == 'theme_engine') ? 'themes/engines' : "${type}s");
$file = (($type == 'theme_engine') ? "$name.engine" : "$name.$type");
foreach (array("$config/$dir/$file", "$config/$dir/$name/$file", "$dir/$file", "$dir/$name/$file") as $file) {
if (file_exists($file)) {
$files[$type][$name] = $file;
break;
}
}
}
return $files[$type][$name];
}
?>
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