I guess that you call the_tabs function (so add your actions to hooks) too late (after these hooks were fired). For example if you call it in some template file (i.e. single.php) after wp_head function call, your filters won’t run – you add them to this hook after it already was fired.
How do I register multiple widgets with a single class definition? You don’t. Modern class based Widget API in WP assumes that one class corresponds to one widget. Note that you can still have intermediary subclasses – (extend WP_Widget, then extend it once more) but what you register in the end is still one widget … Read more
There is no current screen in the context of an AJAX request, only in the context of where you’re making the AJAX calls from.
The fallback_cb argument is used when the menu doesn’t exist– that is, when there is no menu of the right name. I won’t be used otherwise. Check the Codex. By default the fallback is wp_page_menu. Your code looks right to me for using a class method as the callback, but I suspect that what you … Read more
The answer is in the source code that you posted. The code attempts to get the menu by ID using get_term, then by slug and name using get_term_by. If nothing is found it returns false, here: if ( ! $menu_obj ) $menu_obj = false;
Your McAdmin seems fine – the problem is likely one of two reasons: Another AJAX hook for blubb is terminating the script before McAdmin::get_vehicle You need to add the same hook for wp_ajax_nopriv_blubb – for non-logged in AJAX requests (otherwise it fails silently). If neither is the cause, you need to do a little HTTP … Read more
$metabox is not in the global scope, that is why your two functions is not working. If you turn debug on you will get a a lot of debugging notice error messages regarding the use of $metabox. Simply doing the following $metabox = new Metabox; doesn’t make a variable global. It need to be defined … Read more
The foolproof method here to grab a dynamic member variable is to use reflection! Lets say we have this class: class MyClass { private $myProperty = true; } We can use reflection to acquire the class, and the property: $class = new ReflectionClass(“MyClass”); $property = $class->getProperty(“myProperty”); We can then set that property to accessible: $property->setAccessible(true); … Read more
Constructors should not do any any work, they are there for instantiation of your class. It is good that you are trying to build classes that are only concerned to doing one single thing (SOC). I think your issue is more of how to use these classes as a combined working system, because, if done … Read more
If that’s the entirety of plugin — you never create an object instance of your class. Class itself is merely a definition. Just like functions don’t do anything unless called, definition does nothing unless object of it is created. Thus new My_Custom_Plugin();. Note the if you want to be a good citizen you should allow … Read more