WPML slug and custom post types

I don’t quite understand why this plugin is not compatible with WPML.

WPML is not a registered plugin on www.remarpro.com, so I can’t find out how it handles multiple languages.

Rather than Plugin Load Filter being incompatible with WPML, it seems that WPML is multilingualized by unique processing rather than the standard method of WordPress.

To filter against these per-language URLs, please use an add-on or find another similar plugin.

You can use a development license to test WPML.

You can register the site as a development site with the following steps:

1) Log into your WPML.org account and go to the list of registered sites
2) Click the “Add new site” to create a new key
3) Add the site URL then in the second step set the site type as “Development site”
4) Copy the generated key then use it to register WPML in Plugins > Add New > Commercial tab.

Please check here for more details: https://wpml.org/faq/install-wpml/#register

If you need to get the IDs of translated pages / posts you can use the following functions:

function lang_post_id($id){
  if(function_exists('icl_object_id')) {
    return icl_object_id($id,'post',true);
  } else {
    return $id;
  }
}

function lang_page_id($id){
  if(function_exists('icl_object_id')) {
    return icl_object_id($id,'page',true);
  } else {
    return $id;
  }
}

@commupro Hello,

I’ve been trying to solve this issue as well, as you can see from my topic. I’ve noticed the issue is when $GLOBALS['wp']->query_posts(); is called to get the page id to know whether to filter the page or not, it wont work for translated pages, because when you call get_posts you do it with array('surpress_filters' => false) and you can’t do $GLOBALS['wp']->query_posts('suppress_filters=false')); simply because wpml plugins aren’t yet loaded on mu-plugins in plf-filter.php.

So maybe if we find out what filters are added and implement them in a mu-plugin it would work, but it’s REALLY hard because wpml code is very complicated.

You need to load functions like wpml_load_query_filter in ./inc/functions-load.php and functions from ./classes/query-filtering/class-wpml-query-parser.php as well.

@commupro @enomoto-celtislab Solved it,

Add before $GLOBALS['wp']->parse_request(''); in line 1020 of mu-plugins/plf-filter.php the following lines:

$backup_uri = $_SERVER['REQUEST_URI'];
$_SERVER['REQUEST_URI'] = str_replace("/de/","/",$_SERVER['REQUEST_URI']);
$_SERVER['REQUEST_URI'] = str_replace("/sv/","/",$_SERVER['REQUEST_URI']);
$_SERVER['REQUEST_URI'] = str_replace("/fi/","/",$_SERVER['REQUEST_URI']);

And after $GLOBALS['wp']->parse_request(''); add the line:

$_SERVER['REQUEST_URI'] = $backup_uri;

If you have translations with other slugs, like in my case /es/ and /en/, just add a line for each before $GLOBALS['wp']->parse_request(''); like so:

$_SERVER['REQUEST_URI'] = str_replace("/en/","/",$_SERVER['REQUEST_URI']);
$_SERVER['REQUEST_URI'] = str_replace("/es/","/",$_SERVER['REQUEST_URI']);

Or something like:

$backup_uri = $_SERVER['REQUEST_URI'];
$slug = substr($backup_uri, 0, 4);
	if(strlen($slug) === 4 && $slug[0] === '/' && $slug[3] === '/')
	$_SERVER['REQUEST_URI'] = substr($backup_uri,3);
$GLOBALS['wp']->parse_request('');
$_SERVER['REQUEST_URI'] = $backup_uri;

Essentially the fix is removing the language slug, how that can be done the best way to avoid issues is another matter.

• This reply was modified 2 years, 2 months ago by Jack.
• This reply was modified 2 years, 2 months ago by Jack.
• This reply was modified 2 years, 2 months ago by Jack.

Great work, thank you for sharing this!

Ver4.0.13 Added filter hook ‘plf_experimental_custom_parse_request’.

@enomoto-celtislab That’s great! Will update and try it out soon.

The hook seems to be working great:

function plf_experimental_custom_parse_request_custom($return){

	$backup_uri = $_SERVER['REQUEST_URI'];
	$slug = substr($backup_uri, 0, 4);
		if(strlen($slug) === 4 && $slug[0] === '/' && $slug[3] === '/')
		$_SERVER['REQUEST_URI'] = substr($backup_uri,3);
	$GLOBALS['wp']->parse_request('');
	$_SERVER['REQUEST_URI'] = $backup_uri;

	return true;
}
add_filter('plf_experimental_custom_parse_request', 'plf_experimental_custom_parse_request_custom');

Note: The above function might cause problems if you have pages with two letter slugs.