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WordPress-Libs Version 2.16.0

Version 2.16.0 followed fairly quickly after version 2.15.0 so this post will cover the highlights from both versions. 2.15.0 was all about enhancing/streamlining the meta repo and related mutator trait. Version 2.16.0 adds a long desired persistent method to the memoize trait.

Open last used tab after saving CMB2 options page.

Now, saving option pages with tabs will bring you back where you left off after saving instead of reloading with the first tab active.

Meta repo enhancements

Fallback to default meta handling for non-registered meta fields.

Previously, to access the meta data from classes using the Mutator trait, you were required to register the field with CMB2 using the helper classes. Now, registering the fields is optional.

You may access any meta data field registered or not using the same methods, or the array access and repo will fall back to the default WordPress get_metadata automatically.

Add support for accessing an object’s properties directly.

The various object type traits which extend the Mutator trait have now been enhanced to allow for accessing their object properties directly. For instance when using the Post_Object_Trait you may access any of the $post properties directly.

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The only requirement for this functionality to work is, the class using the Mutator trait must have a get_object() method which returns the object who’s properties you want to access. To honor this pattern the previous methods such as get_post(), get_user(), get_term(), etc. have been deprecated in favor of using get_object() on each.

Call defined escape_cb or sanitize_cb arguments when accessing meta values.

When registering CMB2 fields we may specify escape_cb for retrieval and sanitize_cb for saving. Typically these callbacks are only called during meta box saving or retrieval.

The meta repo now honors both these callbacks during get or update. If a callback is not specified the meta repo continues without sanitization or escaping, like before.

Selectively enabling CMB2 fields in the REST API.

Leaving show_in_rest set to false on a box and setting show_in_rest to
any value besides false on a field now automatically sets the box to true
and false for any non-specified field. This allows selectively adding fields to the REST API responses.

A new complementary show_in_rest method has been added to the Field class for chaining, which accepts a single parameter to specify which methods the field is available for. E.G. WP_REST_Server::ALLMETHODS

Persistent memoize method

Simple persistent value caching using the object cache is now available via the Memoize trait using the persistent method.

Same functionality as the Memoize::memoize with the difference of being persistent across runs. The data is automatically added to the object cache for the specified length of time and will pull from the cache if the arguments are the same for the life of the cache.

This replaces the boilerplate; check cache, if empty then retrieve data, then add to cache, then return cache.

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Filed Under: Programming, Published Work, Tools

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