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<?php
namespace Yoast\WP\SEO\Helpers;
use WPSEO_Meta;
use WPSEO_Taxonomy_Meta;
/**
* A helper object for meta.
*/
class Meta_Helper {
/**
* Get a custom post meta value.
*
* Returns the default value if the meta value has not been set.
*
* {@internal Unfortunately there isn't a filter available to hook into before returning
* the results for get_post_meta(), get_post_custom() and the likes. That
* would have been the preferred solution.}}
*
* @codeCoverageIgnore We have to write test when this method contains own code.
*
* @param string $key Internal key of the value to get (without prefix).
* @param int $postid Post ID of the post to get the value for.
*
* @return string All 'normal' values returned from get_post_meta() are strings.
* Objects and arrays are possible, but not used by this plugin
* and therefore discarted (except when the special 'serialized' field def
* value is set to true - only used by add-on plugins for now).
* Will return the default value if no value was found.
* Will return empty string if no default was found (not one of our keys) or
* if the post does not exist.
*/
public function get_value( $key, $postid = 0 ) {
return WPSEO_Meta::get_value( $key, $postid );
}
/**
* Retrieve a taxonomy term's meta value(s).
*
* @param mixed $term Term to get the meta value for
* either (string) term name, (int) term id or (object) term.
* @param string $taxonomy Name of the taxonomy to which the term is attached.
* @param string|null $meta Optional. Meta value to get (without prefix).
*
* @return mixed|bool Value for the $meta if one is given, might be the default.
* If no meta is given, an array of all the meta data for the term.
* False if the term does not exist or the $meta provided is invalid.
*/
public function get_term_value( $term, $taxonomy, $meta = null ) {
return WPSEO_Taxonomy_Meta::get_term_meta( $term, $taxonomy, $meta );
}
/**
* Set a custom post meta value.
*
* @param string $key Internal key of the value to set (without prefix).
* @param mixed $meta_value The value to set the meta value to.
* @param int $post_id Post ID of the post to set the value for.
*
* @return bool Whether the value was changed.
*/
public function set_value( $key, $meta_value, $post_id ) {
return WPSEO_Meta::set_value( $key, $meta_value, $post_id );
}
/**
* Deletes a meta value for a post.
*
* @param string $key The internal key of the meta value to change (without prefix).
* @param int $post_id The ID of the post to delete the meta for.
*
* @return bool Whether the delete was successful or not.
*/
public function delete( $key, $post_id ) {
return WPSEO_Meta::delete( $key, $post_id );
}
}