class User_Helper {
/**
* Retrieves user meta field for a user.
*
* @param int $user_id User ID.
* @param string $key Optional. The meta key to retrieve. By default, returns data for all keys.
* @param bool $single Whether to return a single value.
*
* @return mixed Will be an array if $single is false. Will be value of meta data field if $single is true.
*/
public function get_meta( $user_id, $key = '', $single = false ) {
return \get_user_meta( $user_id, $key, $single );
}
/**
* Counts the number of posts the user has written in this post type.
*
* @param int $user_id User ID.
* @param array|string $post_type Optional. Single post type or array of post types to count the number of posts
* for. Default 'post'.
*
* @return int The number of posts the user has written in this post type.
*/
public function count_posts( $user_id, $post_type = 'post' ) {
return (int) \count_user_posts( $user_id, $post_type, true );
}
/**
* Retrieves the requested data of the author.
*
* @param string $field The user field to retrieve.
* @param int|false $user_id User ID.
*
* @return string The author's field from the current author's DB object.
*/
public function get_the_author_meta( $field, $user_id ) {
return \get_the_author_meta( $field, $user_id );
}
/**
* Retrieves the archive url of the user.
*
* @param int|false $user_id User ID.
*
* @return string The author's archive url.
*/
public function get_the_author_posts_url( $user_id ) {
return \get_author_posts_url( $user_id );
}
/**
* Retrieves the current user ID.
*
* @return int The current user's ID, or 0 if no user is logged in.
*/
public function get_current_user_id() {
return \get_current_user_id();
}
/**
* Updates user meta field for a user.
*
* Use the $prev_value parameter to differentiate between meta fields with the
* same key and user ID.
*
* If the meta field for the user does not exist, it will be added.
*
* @param int $user_id User ID.
* @param string $meta_key Metadata key.
* @param mixed $meta_value Metadata value. Must be serializable if non-scalar.
* @param mixed $prev_value Optional. Previous value to check before updating.
* If specified, only update existing metadata entries with
* this value. Otherwise, update all entries. Default empty.
*
* @return int|bool Meta ID if the key didn't exist, true on successful update,
* false on failure or if the value passed to the function
* is the same as the one that is already in the database.
*/
public function update_meta( $user_id, $meta_key, $meta_value, $prev_value = '' ) {
return \update_user_meta( $user_id, $meta_key, $meta_value, $prev_value );
}
/**
* Removes metadata matching criteria from a user.
*
* You can match based on the key, or key and value. Removing based on key and
* value, will keep from removing duplicate metadata with the same key. It also
* allows removing all metadata matching key, if needed.
*
* @param int $user_id User ID.
* @param string $meta_key Metadata name.
* @param mixed $meta_value Optional. Metadata value. If provided,
* rows will only be removed that match the value.
* Must be serializable if non-scalar. Default empty.
*
* @return bool True on success, false on failure.
*/
public function delete_meta( $user_id, $meta_key, $meta_value = '' ) {
return \delete_user_meta( $user_id, $meta_key, $meta_value );
}
}