mirror of
https://github.com/WordPress/WordPress.git
synced 2024-11-03 09:21:03 +01:00
89a99dba2f
Enable the storing of post meta in revisions including autosaves and previews: Add a new argument `revisions_enabled` to the `register_meta` function which enables storing meta in revisions. Add a new `wp_post_revision_meta_keys` filter which developers can use to control which meta is revisioned - it passes an array of the meta keys with revisions enabled as well as the post type. Meta keys with revisions enabled are also stored for autosaves, and are restored when a revision or autosave is restored. In addition, meta values are now stored with the autosave revision used for previews. Changes to meta can now be previewed correctly without overwriting the published meta (see #20299) or passing data as a query variable, as the editor currently does to preview changes to the featured image. Changes to meta with revisions enabled are considered when determining if a new revision should be created. A new revision is created if the meta value has changed since the last revision. Revisions are now saved on the `wp_after_insert_post` hook instead of `post_updated`. The `wp_after_insert_post` action is fired after post meta has been saved by the REST API which enables attaching meta to the revision. To ensure backwards compatibility with existing action uses, `wp_save_post_revision_on_insert` function exits early if plugins have removed the previous `do_action( 'post_updated', 'wp_save_post_revision' )` call. Props: alexkingorg, johnbillion, markjaquith, WraithKenny, kovshenin, azaozz, tv-productions, p51labs, mattheu, mikeschroder, Mamaduka, ellatrix, timothyblynjacobs, jakemgold, bookwyrm, ryanduff, mintindeed, wonderboymusic, sanchothefat, westonruter, spacedmonkey, hellofromTonya, drewapicture, adamsilverstein, swisspiddy. Fixes #20564, #20299. Built from https://develop.svn.wordpress.org/trunk@56714 git-svn-id: http://core.svn.wordpress.org/trunk@56226 1a063a9b-81f0-0310-95a4-ce76da25c4cd
1821 lines
63 KiB
PHP
1821 lines
63 KiB
PHP
<?php
|
|
/**
|
|
* Core Metadata API
|
|
*
|
|
* Functions for retrieving and manipulating metadata of various WordPress object types. Metadata
|
|
* for an object is a represented by a simple key-value pair. Objects may contain multiple
|
|
* metadata entries that share the same key and differ only in their value.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Meta
|
|
*/
|
|
|
|
require ABSPATH . WPINC . '/class-wp-metadata-lazyloader.php';
|
|
|
|
/**
|
|
* Adds metadata for the specified object.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $meta_value Metadata value. Must be serializable if non-scalar.
|
|
* @param bool $unique Optional. Whether the specified metadata key should be unique for the object.
|
|
* If true, and the object already has a value for the specified metadata key,
|
|
* no change will be made. Default false.
|
|
* @return int|false The meta ID on success, false on failure.
|
|
*/
|
|
function add_metadata( $meta_type, $object_id, $meta_key, $meta_value, $unique = false ) {
|
|
global $wpdb;
|
|
|
|
if ( ! $meta_type || ! $meta_key || ! is_numeric( $object_id ) ) {
|
|
return false;
|
|
}
|
|
|
|
$object_id = absint( $object_id );
|
|
if ( ! $object_id ) {
|
|
return false;
|
|
}
|
|
|
|
$table = _get_meta_table( $meta_type );
|
|
if ( ! $table ) {
|
|
return false;
|
|
}
|
|
|
|
$meta_subtype = get_object_subtype( $meta_type, $object_id );
|
|
|
|
$column = sanitize_key( $meta_type . '_id' );
|
|
|
|
// expected_slashed ($meta_key)
|
|
$meta_key = wp_unslash( $meta_key );
|
|
$meta_value = wp_unslash( $meta_value );
|
|
$meta_value = sanitize_meta( $meta_key, $meta_value, $meta_type, $meta_subtype );
|
|
|
|
/**
|
|
* Short-circuits adding metadata of a specific type.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
* Returning a non-null value will effectively short-circuit the function.
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `add_post_metadata`
|
|
* - `add_comment_metadata`
|
|
* - `add_term_metadata`
|
|
* - `add_user_metadata`
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param null|bool $check Whether to allow adding metadata for the given type.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $meta_value Metadata value. Must be serializable if non-scalar.
|
|
* @param bool $unique Whether the specified meta key should be unique for the object.
|
|
*/
|
|
$check = apply_filters( "add_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $unique );
|
|
if ( null !== $check ) {
|
|
return $check;
|
|
}
|
|
|
|
if ( $unique && $wpdb->get_var(
|
|
$wpdb->prepare(
|
|
"SELECT COUNT(*) FROM $table WHERE meta_key = %s AND $column = %d",
|
|
$meta_key,
|
|
$object_id
|
|
)
|
|
) ) {
|
|
return false;
|
|
}
|
|
|
|
$_meta_value = $meta_value;
|
|
$meta_value = maybe_serialize( $meta_value );
|
|
|
|
/**
|
|
* Fires immediately before meta of a specific type is added.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `add_post_meta`
|
|
* - `add_comment_meta`
|
|
* - `add_term_meta`
|
|
* - `add_user_meta`
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $_meta_value Metadata value.
|
|
*/
|
|
do_action( "add_{$meta_type}_meta", $object_id, $meta_key, $_meta_value );
|
|
|
|
$result = $wpdb->insert(
|
|
$table,
|
|
array(
|
|
$column => $object_id,
|
|
'meta_key' => $meta_key,
|
|
'meta_value' => $meta_value,
|
|
)
|
|
);
|
|
|
|
if ( ! $result ) {
|
|
return false;
|
|
}
|
|
|
|
$mid = (int) $wpdb->insert_id;
|
|
|
|
wp_cache_delete( $object_id, $meta_type . '_meta' );
|
|
|
|
/**
|
|
* Fires immediately after meta of a specific type is added.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `added_post_meta`
|
|
* - `added_comment_meta`
|
|
* - `added_term_meta`
|
|
* - `added_user_meta`
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param int $mid The meta ID after successful update.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $_meta_value Metadata value.
|
|
*/
|
|
do_action( "added_{$meta_type}_meta", $mid, $object_id, $meta_key, $_meta_value );
|
|
|
|
return $mid;
|
|
}
|
|
|
|
/**
|
|
* Updates metadata for the specified object. If no value already exists for the specified object
|
|
* ID and metadata key, the metadata will be added.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @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 string.
|
|
* @return int|bool The new meta field ID if a field with the given key didn't exist
|
|
* and was therefore added, 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.
|
|
*/
|
|
function update_metadata( $meta_type, $object_id, $meta_key, $meta_value, $prev_value = '' ) {
|
|
global $wpdb;
|
|
|
|
if ( ! $meta_type || ! $meta_key || ! is_numeric( $object_id ) ) {
|
|
return false;
|
|
}
|
|
|
|
$object_id = absint( $object_id );
|
|
if ( ! $object_id ) {
|
|
return false;
|
|
}
|
|
|
|
$table = _get_meta_table( $meta_type );
|
|
if ( ! $table ) {
|
|
return false;
|
|
}
|
|
|
|
$meta_subtype = get_object_subtype( $meta_type, $object_id );
|
|
|
|
$column = sanitize_key( $meta_type . '_id' );
|
|
$id_column = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';
|
|
|
|
// expected_slashed ($meta_key)
|
|
$raw_meta_key = $meta_key;
|
|
$meta_key = wp_unslash( $meta_key );
|
|
$passed_value = $meta_value;
|
|
$meta_value = wp_unslash( $meta_value );
|
|
$meta_value = sanitize_meta( $meta_key, $meta_value, $meta_type, $meta_subtype );
|
|
|
|
/**
|
|
* Short-circuits updating metadata of a specific type.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
* Returning a non-null value will effectively short-circuit the function.
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `update_post_metadata`
|
|
* - `update_comment_metadata`
|
|
* - `update_term_metadata`
|
|
* - `update_user_metadata`
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param null|bool $check Whether to allow updating metadata for the given type.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @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.
|
|
*/
|
|
$check = apply_filters( "update_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $prev_value );
|
|
if ( null !== $check ) {
|
|
return (bool) $check;
|
|
}
|
|
|
|
// Compare existing value to new value if no prev value given and the key exists only once.
|
|
if ( empty( $prev_value ) ) {
|
|
$old_value = get_metadata_raw( $meta_type, $object_id, $meta_key );
|
|
if ( is_countable( $old_value ) && count( $old_value ) === 1 ) {
|
|
if ( $old_value[0] === $meta_value ) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
$meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT $id_column FROM $table WHERE meta_key = %s AND $column = %d", $meta_key, $object_id ) );
|
|
if ( empty( $meta_ids ) ) {
|
|
return add_metadata( $meta_type, $object_id, $raw_meta_key, $passed_value );
|
|
}
|
|
|
|
$_meta_value = $meta_value;
|
|
$meta_value = maybe_serialize( $meta_value );
|
|
|
|
$data = compact( 'meta_value' );
|
|
$where = array(
|
|
$column => $object_id,
|
|
'meta_key' => $meta_key,
|
|
);
|
|
|
|
if ( ! empty( $prev_value ) ) {
|
|
$prev_value = maybe_serialize( $prev_value );
|
|
$where['meta_value'] = $prev_value;
|
|
}
|
|
|
|
foreach ( $meta_ids as $meta_id ) {
|
|
/**
|
|
* Fires immediately before updating metadata of a specific type.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `update_post_meta`
|
|
* - `update_comment_meta`
|
|
* - `update_term_meta`
|
|
* - `update_user_meta`
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param int $meta_id ID of the metadata entry to update.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $_meta_value Metadata value.
|
|
*/
|
|
do_action( "update_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
|
|
|
|
if ( 'post' === $meta_type ) {
|
|
/**
|
|
* Fires immediately before updating a post's metadata.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param int $meta_id ID of metadata entry to update.
|
|
* @param int $object_id Post ID.
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $meta_value Metadata value. This will be a PHP-serialized string representation of the value
|
|
* if the value is an array, an object, or itself a PHP-serialized string.
|
|
*/
|
|
do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
|
|
}
|
|
}
|
|
|
|
$result = $wpdb->update( $table, $data, $where );
|
|
if ( ! $result ) {
|
|
return false;
|
|
}
|
|
|
|
wp_cache_delete( $object_id, $meta_type . '_meta' );
|
|
|
|
foreach ( $meta_ids as $meta_id ) {
|
|
/**
|
|
* Fires immediately after updating metadata of a specific type.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `updated_post_meta`
|
|
* - `updated_comment_meta`
|
|
* - `updated_term_meta`
|
|
* - `updated_user_meta`
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param int $meta_id ID of updated metadata entry.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $_meta_value Metadata value.
|
|
*/
|
|
do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
|
|
|
|
if ( 'post' === $meta_type ) {
|
|
/**
|
|
* Fires immediately after updating a post's metadata.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param int $meta_id ID of updated metadata entry.
|
|
* @param int $object_id Post ID.
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $meta_value Metadata value. This will be a PHP-serialized string representation of the value
|
|
* if the value is an array, an object, or itself a PHP-serialized string.
|
|
*/
|
|
do_action( 'updated_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Deletes metadata for the specified object.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $meta_value Optional. Metadata value. Must be serializable if non-scalar.
|
|
* If specified, only delete metadata entries with this value.
|
|
* Otherwise, delete all entries with the specified meta_key.
|
|
* Pass `null`, `false`, or an empty string to skip this check.
|
|
* (For backward compatibility, it is not possible to pass an empty string
|
|
* to delete those entries with an empty string for a value.)
|
|
* Default empty string.
|
|
* @param bool $delete_all Optional. If true, delete matching metadata entries for all objects,
|
|
* ignoring the specified object_id. Otherwise, only delete
|
|
* matching metadata entries for the specified object_id. Default false.
|
|
* @return bool True on successful delete, false on failure.
|
|
*/
|
|
function delete_metadata( $meta_type, $object_id, $meta_key, $meta_value = '', $delete_all = false ) {
|
|
global $wpdb;
|
|
|
|
if ( ! $meta_type || ! $meta_key || ! is_numeric( $object_id ) && ! $delete_all ) {
|
|
return false;
|
|
}
|
|
|
|
$object_id = absint( $object_id );
|
|
if ( ! $object_id && ! $delete_all ) {
|
|
return false;
|
|
}
|
|
|
|
$table = _get_meta_table( $meta_type );
|
|
if ( ! $table ) {
|
|
return false;
|
|
}
|
|
|
|
$type_column = sanitize_key( $meta_type . '_id' );
|
|
$id_column = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';
|
|
|
|
// expected_slashed ($meta_key)
|
|
$meta_key = wp_unslash( $meta_key );
|
|
$meta_value = wp_unslash( $meta_value );
|
|
|
|
/**
|
|
* Short-circuits deleting metadata of a specific type.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
* Returning a non-null value will effectively short-circuit the function.
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `delete_post_metadata`
|
|
* - `delete_comment_metadata`
|
|
* - `delete_term_metadata`
|
|
* - `delete_user_metadata`
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param null|bool $delete Whether to allow metadata deletion of the given type.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $meta_value Metadata value. Must be serializable if non-scalar.
|
|
* @param bool $delete_all Whether to delete the matching metadata entries
|
|
* for all objects, ignoring the specified $object_id.
|
|
* Default false.
|
|
*/
|
|
$check = apply_filters( "delete_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $delete_all );
|
|
if ( null !== $check ) {
|
|
return (bool) $check;
|
|
}
|
|
|
|
$_meta_value = $meta_value;
|
|
$meta_value = maybe_serialize( $meta_value );
|
|
|
|
$query = $wpdb->prepare( "SELECT $id_column FROM $table WHERE meta_key = %s", $meta_key );
|
|
|
|
if ( ! $delete_all ) {
|
|
$query .= $wpdb->prepare( " AND $type_column = %d", $object_id );
|
|
}
|
|
|
|
if ( '' !== $meta_value && null !== $meta_value && false !== $meta_value ) {
|
|
$query .= $wpdb->prepare( ' AND meta_value = %s', $meta_value );
|
|
}
|
|
|
|
$meta_ids = $wpdb->get_col( $query );
|
|
if ( ! count( $meta_ids ) ) {
|
|
return false;
|
|
}
|
|
|
|
if ( $delete_all ) {
|
|
if ( '' !== $meta_value && null !== $meta_value && false !== $meta_value ) {
|
|
$object_ids = $wpdb->get_col( $wpdb->prepare( "SELECT $type_column FROM $table WHERE meta_key = %s AND meta_value = %s", $meta_key, $meta_value ) );
|
|
} else {
|
|
$object_ids = $wpdb->get_col( $wpdb->prepare( "SELECT $type_column FROM $table WHERE meta_key = %s", $meta_key ) );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Fires immediately before deleting metadata of a specific type.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `delete_post_meta`
|
|
* - `delete_comment_meta`
|
|
* - `delete_term_meta`
|
|
* - `delete_user_meta`
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param string[] $meta_ids An array of metadata entry IDs to delete.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $_meta_value Metadata value.
|
|
*/
|
|
do_action( "delete_{$meta_type}_meta", $meta_ids, $object_id, $meta_key, $_meta_value );
|
|
|
|
// Old-style action.
|
|
if ( 'post' === $meta_type ) {
|
|
/**
|
|
* Fires immediately before deleting metadata for a post.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param string[] $meta_ids An array of metadata entry IDs to delete.
|
|
*/
|
|
do_action( 'delete_postmeta', $meta_ids );
|
|
}
|
|
|
|
$query = "DELETE FROM $table WHERE $id_column IN( " . implode( ',', $meta_ids ) . ' )';
|
|
|
|
$count = $wpdb->query( $query );
|
|
|
|
if ( ! $count ) {
|
|
return false;
|
|
}
|
|
|
|
if ( $delete_all ) {
|
|
$data = (array) $object_ids;
|
|
} else {
|
|
$data = array( $object_id );
|
|
}
|
|
wp_cache_delete_multiple( $data, $meta_type . '_meta' );
|
|
|
|
/**
|
|
* Fires immediately after deleting metadata of a specific type.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `deleted_post_meta`
|
|
* - `deleted_comment_meta`
|
|
* - `deleted_term_meta`
|
|
* - `deleted_user_meta`
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param string[] $meta_ids An array of metadata entry IDs to delete.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $_meta_value Metadata value.
|
|
*/
|
|
do_action( "deleted_{$meta_type}_meta", $meta_ids, $object_id, $meta_key, $_meta_value );
|
|
|
|
// Old-style action.
|
|
if ( 'post' === $meta_type ) {
|
|
/**
|
|
* Fires immediately after deleting metadata for a post.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param string[] $meta_ids An array of metadata entry IDs to delete.
|
|
*/
|
|
do_action( 'deleted_postmeta', $meta_ids );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Retrieves the value of a metadata field for the specified object type and ID.
|
|
*
|
|
* If the meta field exists, a single value is returned if `$single` is true,
|
|
* or an array of values if it's false.
|
|
*
|
|
* If the meta field does not exist, the result depends on get_metadata_default().
|
|
* By default, an empty string is returned if `$single` is true, or an empty array
|
|
* if it's false.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @see get_metadata_raw()
|
|
* @see get_metadata_default()
|
|
*
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Optional. Metadata key. If not specified, retrieve all metadata for
|
|
* the specified object. Default empty string.
|
|
* @param bool $single Optional. If true, return only the first value of the specified `$meta_key`.
|
|
* This parameter has no effect if `$meta_key` is not specified. Default false.
|
|
* @return mixed An array of values if `$single` is false.
|
|
* The value of the meta field if `$single` is true.
|
|
* False for an invalid `$object_id` (non-numeric, zero, or negative value),
|
|
* or if `$meta_type` is not specified.
|
|
* An empty string if a valid but non-existing object ID is passed.
|
|
*/
|
|
function get_metadata( $meta_type, $object_id, $meta_key = '', $single = false ) {
|
|
$value = get_metadata_raw( $meta_type, $object_id, $meta_key, $single );
|
|
if ( ! is_null( $value ) ) {
|
|
return $value;
|
|
}
|
|
|
|
return get_metadata_default( $meta_type, $object_id, $meta_key, $single );
|
|
}
|
|
|
|
/**
|
|
* Retrieves raw metadata value for the specified object.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Optional. Metadata key. If not specified, retrieve all metadata for
|
|
* the specified object. Default empty string.
|
|
* @param bool $single Optional. If true, return only the first value of the specified `$meta_key`.
|
|
* This parameter has no effect if `$meta_key` is not specified. Default false.
|
|
* @return mixed An array of values if `$single` is false.
|
|
* The value of the meta field if `$single` is true.
|
|
* False for an invalid `$object_id` (non-numeric, zero, or negative value),
|
|
* or if `$meta_type` is not specified.
|
|
* Null if the value does not exist.
|
|
*/
|
|
function get_metadata_raw( $meta_type, $object_id, $meta_key = '', $single = false ) {
|
|
if ( ! $meta_type || ! is_numeric( $object_id ) ) {
|
|
return false;
|
|
}
|
|
|
|
$object_id = absint( $object_id );
|
|
if ( ! $object_id ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Short-circuits the return value of a meta field.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
* Returning a non-null value will effectively short-circuit the function.
|
|
*
|
|
* Possible filter names include:
|
|
*
|
|
* - `get_post_metadata`
|
|
* - `get_comment_metadata`
|
|
* - `get_term_metadata`
|
|
* - `get_user_metadata`
|
|
*
|
|
* @since 3.1.0
|
|
* @since 5.5.0 Added the `$meta_type` parameter.
|
|
*
|
|
* @param mixed $value The value to return, either a single metadata value or an array
|
|
* of values depending on the value of `$single`. Default null.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param bool $single Whether to return only the first value of the specified `$meta_key`.
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
*/
|
|
$check = apply_filters( "get_{$meta_type}_metadata", null, $object_id, $meta_key, $single, $meta_type );
|
|
if ( null !== $check ) {
|
|
if ( $single && is_array( $check ) ) {
|
|
return $check[0];
|
|
} else {
|
|
return $check;
|
|
}
|
|
}
|
|
|
|
$meta_cache = wp_cache_get( $object_id, $meta_type . '_meta' );
|
|
|
|
if ( ! $meta_cache ) {
|
|
$meta_cache = update_meta_cache( $meta_type, array( $object_id ) );
|
|
if ( isset( $meta_cache[ $object_id ] ) ) {
|
|
$meta_cache = $meta_cache[ $object_id ];
|
|
} else {
|
|
$meta_cache = null;
|
|
}
|
|
}
|
|
|
|
if ( ! $meta_key ) {
|
|
return $meta_cache;
|
|
}
|
|
|
|
if ( isset( $meta_cache[ $meta_key ] ) ) {
|
|
if ( $single ) {
|
|
return maybe_unserialize( $meta_cache[ $meta_key ][0] );
|
|
} else {
|
|
return array_map( 'maybe_unserialize', $meta_cache[ $meta_key ] );
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Retrieves default metadata value for the specified meta key and object.
|
|
*
|
|
* By default, an empty string is returned if `$single` is true, or an empty array
|
|
* if it's false.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param bool $single Optional. If true, return only the first value of the specified `$meta_key`.
|
|
* This parameter has no effect if `$meta_key` is not specified. Default false.
|
|
* @return mixed An array of default values if `$single` is false.
|
|
* The default value of the meta field if `$single` is true.
|
|
*/
|
|
function get_metadata_default( $meta_type, $object_id, $meta_key, $single = false ) {
|
|
if ( $single ) {
|
|
$value = '';
|
|
} else {
|
|
$value = array();
|
|
}
|
|
|
|
/**
|
|
* Filters the default metadata value for a specified meta key and object.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
*
|
|
* Possible filter names include:
|
|
*
|
|
* - `default_post_metadata`
|
|
* - `default_comment_metadata`
|
|
* - `default_term_metadata`
|
|
* - `default_user_metadata`
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param mixed $value The value to return, either a single metadata value or an array
|
|
* of values depending on the value of `$single`.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param bool $single Whether to return only the first value of the specified `$meta_key`.
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
*/
|
|
$value = apply_filters( "default_{$meta_type}_metadata", $value, $object_id, $meta_key, $single, $meta_type );
|
|
|
|
if ( ! $single && ! wp_is_numeric_array( $value ) ) {
|
|
$value = array( $value );
|
|
}
|
|
|
|
return $value;
|
|
}
|
|
|
|
/**
|
|
* Determines if a meta field with the given key exists for the given object ID.
|
|
*
|
|
* @since 3.3.0
|
|
*
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @return bool Whether a meta field with the given key exists.
|
|
*/
|
|
function metadata_exists( $meta_type, $object_id, $meta_key ) {
|
|
if ( ! $meta_type || ! is_numeric( $object_id ) ) {
|
|
return false;
|
|
}
|
|
|
|
$object_id = absint( $object_id );
|
|
if ( ! $object_id ) {
|
|
return false;
|
|
}
|
|
|
|
/** This filter is documented in wp-includes/meta.php */
|
|
$check = apply_filters( "get_{$meta_type}_metadata", null, $object_id, $meta_key, true, $meta_type );
|
|
if ( null !== $check ) {
|
|
return (bool) $check;
|
|
}
|
|
|
|
$meta_cache = wp_cache_get( $object_id, $meta_type . '_meta' );
|
|
|
|
if ( ! $meta_cache ) {
|
|
$meta_cache = update_meta_cache( $meta_type, array( $object_id ) );
|
|
$meta_cache = $meta_cache[ $object_id ];
|
|
}
|
|
|
|
if ( isset( $meta_cache[ $meta_key ] ) ) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Retrieves metadata by meta ID.
|
|
*
|
|
* @since 3.3.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param int $meta_id ID for a specific meta row.
|
|
* @return stdClass|false {
|
|
* Metadata object, or boolean `false` if the metadata doesn't exist.
|
|
*
|
|
* @type string $meta_key The meta key.
|
|
* @type mixed $meta_value The unserialized meta value.
|
|
* @type string $meta_id Optional. The meta ID when the meta type is any value except 'user'.
|
|
* @type string $umeta_id Optional. The meta ID when the meta type is 'user'.
|
|
* @type string $post_id Optional. The object ID when the meta type is 'post'.
|
|
* @type string $comment_id Optional. The object ID when the meta type is 'comment'.
|
|
* @type string $term_id Optional. The object ID when the meta type is 'term'.
|
|
* @type string $user_id Optional. The object ID when the meta type is 'user'.
|
|
* }
|
|
*/
|
|
function get_metadata_by_mid( $meta_type, $meta_id ) {
|
|
global $wpdb;
|
|
|
|
if ( ! $meta_type || ! is_numeric( $meta_id ) || floor( $meta_id ) != $meta_id ) {
|
|
return false;
|
|
}
|
|
|
|
$meta_id = (int) $meta_id;
|
|
if ( $meta_id <= 0 ) {
|
|
return false;
|
|
}
|
|
|
|
$table = _get_meta_table( $meta_type );
|
|
if ( ! $table ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Short-circuits the return value when fetching a meta field by meta ID.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
* Returning a non-null value will effectively short-circuit the function.
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `get_post_metadata_by_mid`
|
|
* - `get_comment_metadata_by_mid`
|
|
* - `get_term_metadata_by_mid`
|
|
* - `get_user_metadata_by_mid`
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @param stdClass|null $value The value to return.
|
|
* @param int $meta_id Meta ID.
|
|
*/
|
|
$check = apply_filters( "get_{$meta_type}_metadata_by_mid", null, $meta_id );
|
|
if ( null !== $check ) {
|
|
return $check;
|
|
}
|
|
|
|
$id_column = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';
|
|
|
|
$meta = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $table WHERE $id_column = %d", $meta_id ) );
|
|
|
|
if ( empty( $meta ) ) {
|
|
return false;
|
|
}
|
|
|
|
if ( isset( $meta->meta_value ) ) {
|
|
$meta->meta_value = maybe_unserialize( $meta->meta_value );
|
|
}
|
|
|
|
return $meta;
|
|
}
|
|
|
|
/**
|
|
* Updates metadata by meta ID.
|
|
*
|
|
* @since 3.3.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param int $meta_id ID for a specific meta row.
|
|
* @param string $meta_value Metadata value. Must be serializable if non-scalar.
|
|
* @param string|false $meta_key Optional. You can provide a meta key to update it. Default false.
|
|
* @return bool True on successful update, false on failure.
|
|
*/
|
|
function update_metadata_by_mid( $meta_type, $meta_id, $meta_value, $meta_key = false ) {
|
|
global $wpdb;
|
|
|
|
// Make sure everything is valid.
|
|
if ( ! $meta_type || ! is_numeric( $meta_id ) || floor( $meta_id ) != $meta_id ) {
|
|
return false;
|
|
}
|
|
|
|
$meta_id = (int) $meta_id;
|
|
if ( $meta_id <= 0 ) {
|
|
return false;
|
|
}
|
|
|
|
$table = _get_meta_table( $meta_type );
|
|
if ( ! $table ) {
|
|
return false;
|
|
}
|
|
|
|
$column = sanitize_key( $meta_type . '_id' );
|
|
$id_column = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';
|
|
|
|
/**
|
|
* Short-circuits updating metadata of a specific type by meta ID.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
* Returning a non-null value will effectively short-circuit the function.
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `update_post_metadata_by_mid`
|
|
* - `update_comment_metadata_by_mid`
|
|
* - `update_term_metadata_by_mid`
|
|
* - `update_user_metadata_by_mid`
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @param null|bool $check Whether to allow updating metadata for the given type.
|
|
* @param int $meta_id Meta ID.
|
|
* @param mixed $meta_value Meta value. Must be serializable if non-scalar.
|
|
* @param string|false $meta_key Meta key, if provided.
|
|
*/
|
|
$check = apply_filters( "update_{$meta_type}_metadata_by_mid", null, $meta_id, $meta_value, $meta_key );
|
|
if ( null !== $check ) {
|
|
return (bool) $check;
|
|
}
|
|
|
|
// Fetch the meta and go on if it's found.
|
|
$meta = get_metadata_by_mid( $meta_type, $meta_id );
|
|
if ( $meta ) {
|
|
$original_key = $meta->meta_key;
|
|
$object_id = $meta->{$column};
|
|
|
|
/*
|
|
* If a new meta_key (last parameter) was specified, change the meta key,
|
|
* otherwise use the original key in the update statement.
|
|
*/
|
|
if ( false === $meta_key ) {
|
|
$meta_key = $original_key;
|
|
} elseif ( ! is_string( $meta_key ) ) {
|
|
return false;
|
|
}
|
|
|
|
$meta_subtype = get_object_subtype( $meta_type, $object_id );
|
|
|
|
// Sanitize the meta.
|
|
$_meta_value = $meta_value;
|
|
$meta_value = sanitize_meta( $meta_key, $meta_value, $meta_type, $meta_subtype );
|
|
$meta_value = maybe_serialize( $meta_value );
|
|
|
|
// Format the data query arguments.
|
|
$data = array(
|
|
'meta_key' => $meta_key,
|
|
'meta_value' => $meta_value,
|
|
);
|
|
|
|
// Format the where query arguments.
|
|
$where = array();
|
|
$where[ $id_column ] = $meta_id;
|
|
|
|
/** This action is documented in wp-includes/meta.php */
|
|
do_action( "update_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
|
|
|
|
if ( 'post' === $meta_type ) {
|
|
/** This action is documented in wp-includes/meta.php */
|
|
do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
|
|
}
|
|
|
|
// Run the update query, all fields in $data are %s, $where is a %d.
|
|
$result = $wpdb->update( $table, $data, $where, '%s', '%d' );
|
|
if ( ! $result ) {
|
|
return false;
|
|
}
|
|
|
|
// Clear the caches.
|
|
wp_cache_delete( $object_id, $meta_type . '_meta' );
|
|
|
|
/** This action is documented in wp-includes/meta.php */
|
|
do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
|
|
|
|
if ( 'post' === $meta_type ) {
|
|
/** This action is documented in wp-includes/meta.php */
|
|
do_action( 'updated_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// And if the meta was not found.
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Deletes metadata by meta ID.
|
|
*
|
|
* @since 3.3.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param int $meta_id ID for a specific meta row.
|
|
* @return bool True on successful delete, false on failure.
|
|
*/
|
|
function delete_metadata_by_mid( $meta_type, $meta_id ) {
|
|
global $wpdb;
|
|
|
|
// Make sure everything is valid.
|
|
if ( ! $meta_type || ! is_numeric( $meta_id ) || floor( $meta_id ) != $meta_id ) {
|
|
return false;
|
|
}
|
|
|
|
$meta_id = (int) $meta_id;
|
|
if ( $meta_id <= 0 ) {
|
|
return false;
|
|
}
|
|
|
|
$table = _get_meta_table( $meta_type );
|
|
if ( ! $table ) {
|
|
return false;
|
|
}
|
|
|
|
// Object and ID columns.
|
|
$column = sanitize_key( $meta_type . '_id' );
|
|
$id_column = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';
|
|
|
|
/**
|
|
* Short-circuits deleting metadata of a specific type by meta ID.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
* Returning a non-null value will effectively short-circuit the function.
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `delete_post_metadata_by_mid`
|
|
* - `delete_comment_metadata_by_mid`
|
|
* - `delete_term_metadata_by_mid`
|
|
* - `delete_user_metadata_by_mid`
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @param null|bool $delete Whether to allow metadata deletion of the given type.
|
|
* @param int $meta_id Meta ID.
|
|
*/
|
|
$check = apply_filters( "delete_{$meta_type}_metadata_by_mid", null, $meta_id );
|
|
if ( null !== $check ) {
|
|
return (bool) $check;
|
|
}
|
|
|
|
// Fetch the meta and go on if it's found.
|
|
$meta = get_metadata_by_mid( $meta_type, $meta_id );
|
|
if ( $meta ) {
|
|
$object_id = (int) $meta->{$column};
|
|
|
|
/** This action is documented in wp-includes/meta.php */
|
|
do_action( "delete_{$meta_type}_meta", (array) $meta_id, $object_id, $meta->meta_key, $meta->meta_value );
|
|
|
|
// Old-style action.
|
|
if ( 'post' === $meta_type || 'comment' === $meta_type ) {
|
|
/**
|
|
* Fires immediately before deleting post or comment metadata of a specific type.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta
|
|
* object type (post or comment).
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `delete_postmeta`
|
|
* - `delete_commentmeta`
|
|
* - `delete_termmeta`
|
|
* - `delete_usermeta`
|
|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @param int $meta_id ID of the metadata entry to delete.
|
|
*/
|
|
do_action( "delete_{$meta_type}meta", $meta_id );
|
|
}
|
|
|
|
// Run the query, will return true if deleted, false otherwise.
|
|
$result = (bool) $wpdb->delete( $table, array( $id_column => $meta_id ) );
|
|
|
|
// Clear the caches.
|
|
wp_cache_delete( $object_id, $meta_type . '_meta' );
|
|
|
|
/** This action is documented in wp-includes/meta.php */
|
|
do_action( "deleted_{$meta_type}_meta", (array) $meta_id, $object_id, $meta->meta_key, $meta->meta_value );
|
|
|
|
// Old-style action.
|
|
if ( 'post' === $meta_type || 'comment' === $meta_type ) {
|
|
/**
|
|
* Fires immediately after deleting post or comment metadata of a specific type.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta
|
|
* object type (post or comment).
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `deleted_postmeta`
|
|
* - `deleted_commentmeta`
|
|
* - `deleted_termmeta`
|
|
* - `deleted_usermeta`
|
|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @param int $meta_id Deleted metadata entry ID.
|
|
*/
|
|
do_action( "deleted_{$meta_type}meta", $meta_id );
|
|
}
|
|
|
|
return $result;
|
|
|
|
}
|
|
|
|
// Meta ID was not found.
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Updates the metadata cache for the specified objects.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param string|int[] $object_ids Array or comma delimited list of object IDs to update cache for.
|
|
* @return array|false Metadata cache for the specified objects, or false on failure.
|
|
*/
|
|
function update_meta_cache( $meta_type, $object_ids ) {
|
|
global $wpdb;
|
|
|
|
if ( ! $meta_type || ! $object_ids ) {
|
|
return false;
|
|
}
|
|
|
|
$table = _get_meta_table( $meta_type );
|
|
if ( ! $table ) {
|
|
return false;
|
|
}
|
|
|
|
$column = sanitize_key( $meta_type . '_id' );
|
|
|
|
if ( ! is_array( $object_ids ) ) {
|
|
$object_ids = preg_replace( '|[^0-9,]|', '', $object_ids );
|
|
$object_ids = explode( ',', $object_ids );
|
|
}
|
|
|
|
$object_ids = array_map( 'intval', $object_ids );
|
|
|
|
/**
|
|
* Short-circuits updating the metadata cache of a specific type.
|
|
*
|
|
* The dynamic portion of the hook name, `$meta_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
* Returning a non-null value will effectively short-circuit the function.
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `update_post_metadata_cache`
|
|
* - `update_comment_metadata_cache`
|
|
* - `update_term_metadata_cache`
|
|
* - `update_user_metadata_cache`
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @param mixed $check Whether to allow updating the meta cache of the given type.
|
|
* @param int[] $object_ids Array of object IDs to update the meta cache for.
|
|
*/
|
|
$check = apply_filters( "update_{$meta_type}_metadata_cache", null, $object_ids );
|
|
if ( null !== $check ) {
|
|
return (bool) $check;
|
|
}
|
|
|
|
$cache_key = $meta_type . '_meta';
|
|
$non_cached_ids = array();
|
|
$cache = array();
|
|
$cache_values = wp_cache_get_multiple( $object_ids, $cache_key );
|
|
|
|
foreach ( $cache_values as $id => $cached_object ) {
|
|
if ( false === $cached_object ) {
|
|
$non_cached_ids[] = $id;
|
|
} else {
|
|
$cache[ $id ] = $cached_object;
|
|
}
|
|
}
|
|
|
|
if ( empty( $non_cached_ids ) ) {
|
|
return $cache;
|
|
}
|
|
|
|
// Get meta info.
|
|
$id_list = implode( ',', $non_cached_ids );
|
|
$id_column = ( 'user' === $meta_type ) ? 'umeta_id' : 'meta_id';
|
|
|
|
$meta_list = $wpdb->get_results( "SELECT $column, meta_key, meta_value FROM $table WHERE $column IN ($id_list) ORDER BY $id_column ASC", ARRAY_A );
|
|
|
|
if ( ! empty( $meta_list ) ) {
|
|
foreach ( $meta_list as $metarow ) {
|
|
$mpid = (int) $metarow[ $column ];
|
|
$mkey = $metarow['meta_key'];
|
|
$mval = $metarow['meta_value'];
|
|
|
|
// Force subkeys to be array type.
|
|
if ( ! isset( $cache[ $mpid ] ) || ! is_array( $cache[ $mpid ] ) ) {
|
|
$cache[ $mpid ] = array();
|
|
}
|
|
if ( ! isset( $cache[ $mpid ][ $mkey ] ) || ! is_array( $cache[ $mpid ][ $mkey ] ) ) {
|
|
$cache[ $mpid ][ $mkey ] = array();
|
|
}
|
|
|
|
// Add a value to the current pid/key.
|
|
$cache[ $mpid ][ $mkey ][] = $mval;
|
|
}
|
|
}
|
|
|
|
$data = array();
|
|
foreach ( $non_cached_ids as $id ) {
|
|
if ( ! isset( $cache[ $id ] ) ) {
|
|
$cache[ $id ] = array();
|
|
}
|
|
$data[ $id ] = $cache[ $id ];
|
|
}
|
|
wp_cache_add_multiple( $data, $cache_key );
|
|
|
|
return $cache;
|
|
}
|
|
|
|
/**
|
|
* Retrieves the queue for lazy-loading metadata.
|
|
*
|
|
* @since 4.5.0
|
|
*
|
|
* @return WP_Metadata_Lazyloader Metadata lazyloader queue.
|
|
*/
|
|
function wp_metadata_lazyloader() {
|
|
static $wp_metadata_lazyloader;
|
|
|
|
if ( null === $wp_metadata_lazyloader ) {
|
|
$wp_metadata_lazyloader = new WP_Metadata_Lazyloader();
|
|
}
|
|
|
|
return $wp_metadata_lazyloader;
|
|
}
|
|
|
|
/**
|
|
* Given a meta query, generates SQL clauses to be appended to a main query.
|
|
*
|
|
* @since 3.2.0
|
|
*
|
|
* @see WP_Meta_Query
|
|
*
|
|
* @param array $meta_query A meta query.
|
|
* @param string $type Type of meta.
|
|
* @param string $primary_table Primary database table name.
|
|
* @param string $primary_id_column Primary ID column name.
|
|
* @param object $context Optional. The main query object. Default null.
|
|
* @return string[]|false {
|
|
* Array containing JOIN and WHERE SQL clauses to append to the main query,
|
|
* or false if no table exists for the requested meta type.
|
|
*
|
|
* @type string $join SQL fragment to append to the main JOIN clause.
|
|
* @type string $where SQL fragment to append to the main WHERE clause.
|
|
* }
|
|
*/
|
|
function get_meta_sql( $meta_query, $type, $primary_table, $primary_id_column, $context = null ) {
|
|
$meta_query_obj = new WP_Meta_Query( $meta_query );
|
|
return $meta_query_obj->get_sql( $type, $primary_table, $primary_id_column, $context );
|
|
}
|
|
|
|
/**
|
|
* Retrieves the name of the metadata table for the specified object type.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param string $type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @return string|false Metadata table name, or false if no metadata table exists
|
|
*/
|
|
function _get_meta_table( $type ) {
|
|
global $wpdb;
|
|
|
|
$table_name = $type . 'meta';
|
|
|
|
if ( empty( $wpdb->$table_name ) ) {
|
|
return false;
|
|
}
|
|
|
|
return $wpdb->$table_name;
|
|
}
|
|
|
|
/**
|
|
* Determines whether a meta key is considered protected.
|
|
*
|
|
* @since 3.1.3
|
|
*
|
|
* @param string $meta_key Metadata key.
|
|
* @param string $meta_type Optional. Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table. Default empty string.
|
|
* @return bool Whether the meta key is considered protected.
|
|
*/
|
|
function is_protected_meta( $meta_key, $meta_type = '' ) {
|
|
$sanitized_key = preg_replace( "/[^\x20-\x7E\p{L}]/", '', $meta_key );
|
|
$protected = strlen( $sanitized_key ) > 0 && ( '_' === $sanitized_key[0] );
|
|
|
|
/**
|
|
* Filters whether a meta key is considered protected.
|
|
*
|
|
* @since 3.2.0
|
|
*
|
|
* @param bool $protected Whether the key is considered protected.
|
|
* @param string $meta_key Metadata key.
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
*/
|
|
return apply_filters( 'is_protected_meta', $protected, $meta_key, $meta_type );
|
|
}
|
|
|
|
/**
|
|
* Sanitizes meta value.
|
|
*
|
|
* @since 3.1.3
|
|
* @since 4.9.8 The `$object_subtype` parameter was added.
|
|
*
|
|
* @param string $meta_key Metadata key.
|
|
* @param mixed $meta_value Metadata value to sanitize.
|
|
* @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param string $object_subtype Optional. The subtype of the object type. Default empty string.
|
|
* @return mixed Sanitized $meta_value.
|
|
*/
|
|
function sanitize_meta( $meta_key, $meta_value, $object_type, $object_subtype = '' ) {
|
|
if ( ! empty( $object_subtype ) && has_filter( "sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}" ) ) {
|
|
|
|
/**
|
|
* Filters the sanitization of a specific meta key of a specific meta type and subtype.
|
|
*
|
|
* The dynamic portions of the hook name, `$object_type`, `$meta_key`,
|
|
* and `$object_subtype`, refer to the metadata object type (comment, post, term, or user),
|
|
* the meta key value, and the object subtype respectively.
|
|
*
|
|
* @since 4.9.8
|
|
*
|
|
* @param mixed $meta_value Metadata value to sanitize.
|
|
* @param string $meta_key Metadata key.
|
|
* @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param string $object_subtype Object subtype.
|
|
*/
|
|
return apply_filters( "sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $meta_value, $meta_key, $object_type, $object_subtype );
|
|
}
|
|
|
|
/**
|
|
* Filters the sanitization of a specific meta key of a specific meta type.
|
|
*
|
|
* The dynamic portions of the hook name, `$meta_type`, and `$meta_key`,
|
|
* refer to the metadata object type (comment, post, term, or user) and the meta
|
|
* key value, respectively.
|
|
*
|
|
* @since 3.3.0
|
|
*
|
|
* @param mixed $meta_value Metadata value to sanitize.
|
|
* @param string $meta_key Metadata key.
|
|
* @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
*/
|
|
return apply_filters( "sanitize_{$object_type}_meta_{$meta_key}", $meta_value, $meta_key, $object_type );
|
|
}
|
|
|
|
/**
|
|
* Registers a meta key.
|
|
*
|
|
* It is recommended to register meta keys for a specific combination of object type and object subtype. If passing
|
|
* an object subtype is omitted, the meta key will be registered for the entire object type, however it can be partly
|
|
* overridden in case a more specific meta key of the same name exists for the same object type and a subtype.
|
|
*
|
|
* If an object type does not support any subtypes, such as users or comments, you should commonly call this function
|
|
* without passing a subtype.
|
|
*
|
|
* @since 3.3.0
|
|
* @since 4.6.0 {@link https://core.trac.wordpress.org/ticket/35658 Modified
|
|
* to support an array of data to attach to registered meta keys}. Previous arguments for
|
|
* `$sanitize_callback` and `$auth_callback` have been folded into this array.
|
|
* @since 4.9.8 The `$object_subtype` argument was added to the arguments array.
|
|
* @since 5.3.0 Valid meta types expanded to include "array" and "object".
|
|
* @since 5.5.0 The `$default` argument was added to the arguments array.
|
|
* @since 6.4.0 The `$revisions_enabled` argument was added to the arguments array.
|
|
*
|
|
* @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param string $meta_key Meta key to register.
|
|
* @param array $args {
|
|
* Data used to describe the meta key when registered.
|
|
*
|
|
* @type string $object_subtype A subtype; e.g. if the object type is "post", the post type. If left empty,
|
|
* the meta key will be registered on the entire object type. Default empty.
|
|
* @type string $type The type of data associated with this meta key.
|
|
* Valid values are 'string', 'boolean', 'integer', 'number', 'array', and 'object'.
|
|
* @type string $description A description of the data attached to this meta key.
|
|
* @type bool $single Whether the meta key has one value per object, or an array of values per object.
|
|
* @type mixed $default The default value returned from get_metadata() if no value has been set yet.
|
|
* When using a non-single meta key, the default value is for the first entry.
|
|
* In other words, when calling get_metadata() with `$single` set to `false`,
|
|
* the default value given here will be wrapped in an array.
|
|
* @type callable $sanitize_callback A function or method to call when sanitizing `$meta_key` data.
|
|
* @type callable $auth_callback Optional. A function or method to call when performing edit_post_meta,
|
|
* add_post_meta, and delete_post_meta capability checks.
|
|
* @type bool|array $show_in_rest Whether data associated with this meta key can be considered public and
|
|
* should be accessible via the REST API. A custom post type must also declare
|
|
* support for custom fields for registered meta to be accessible via REST.
|
|
* When registering complex meta values this argument may optionally be an
|
|
* array with 'schema' or 'prepare_callback' keys instead of a boolean.
|
|
* @type bool $revisions_enabled Whether to enable revisions support for this meta_key. Can only be used when the
|
|
* object type is 'post'.
|
|
* }
|
|
* @param string|array $deprecated Deprecated. Use `$args` instead.
|
|
* @return bool True if the meta key was successfully registered in the global array, false if not.
|
|
* Registering a meta key with distinct sanitize and auth callbacks will fire those callbacks,
|
|
* but will not add to the global registry.
|
|
*/
|
|
function register_meta( $object_type, $meta_key, $args, $deprecated = null ) {
|
|
global $wp_meta_keys;
|
|
|
|
if ( ! is_array( $wp_meta_keys ) ) {
|
|
$wp_meta_keys = array();
|
|
}
|
|
|
|
$defaults = array(
|
|
'object_subtype' => '',
|
|
'type' => 'string',
|
|
'description' => '',
|
|
'default' => '',
|
|
'single' => false,
|
|
'sanitize_callback' => null,
|
|
'auth_callback' => null,
|
|
'show_in_rest' => false,
|
|
'revisions_enabled' => false,
|
|
);
|
|
|
|
// There used to be individual args for sanitize and auth callbacks.
|
|
$has_old_sanitize_cb = false;
|
|
$has_old_auth_cb = false;
|
|
|
|
if ( is_callable( $args ) ) {
|
|
$args = array(
|
|
'sanitize_callback' => $args,
|
|
);
|
|
|
|
$has_old_sanitize_cb = true;
|
|
} else {
|
|
$args = (array) $args;
|
|
}
|
|
|
|
if ( is_callable( $deprecated ) ) {
|
|
$args['auth_callback'] = $deprecated;
|
|
$has_old_auth_cb = true;
|
|
}
|
|
|
|
/**
|
|
* Filters the registration arguments when registering meta.
|
|
*
|
|
* @since 4.6.0
|
|
*
|
|
* @param array $args Array of meta registration arguments.
|
|
* @param array $defaults Array of default arguments.
|
|
* @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param string $meta_key Meta key.
|
|
*/
|
|
$args = apply_filters( 'register_meta_args', $args, $defaults, $object_type, $meta_key );
|
|
unset( $defaults['default'] );
|
|
$args = wp_parse_args( $args, $defaults );
|
|
|
|
// Require an item schema when registering array meta.
|
|
if ( false !== $args['show_in_rest'] && 'array' === $args['type'] ) {
|
|
if ( ! is_array( $args['show_in_rest'] ) || ! isset( $args['show_in_rest']['schema']['items'] ) ) {
|
|
_doing_it_wrong( __FUNCTION__, __( 'When registering an "array" meta type to show in the REST API, you must specify the schema for each array item in "show_in_rest.schema.items".' ), '5.3.0' );
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
$object_subtype = ! empty( $args['object_subtype'] ) ? $args['object_subtype'] : '';
|
|
if ( $args['revisions_enabled'] ) {
|
|
if ( 'post' !== $object_type ) {
|
|
_doing_it_wrong( __FUNCTION__, __( 'Meta keys cannot enable revisions support unless the object type supports revisions.' ), '6.4.0' );
|
|
|
|
return false;
|
|
} elseif ( ! empty( $object_subtype ) && ! post_type_supports( $object_subtype, 'revisions' ) ) {
|
|
_doing_it_wrong( __FUNCTION__, __( 'Meta keys cannot enable revisions support unless the object subtype supports revisions.' ), '6.4.0' );
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// If `auth_callback` is not provided, fall back to `is_protected_meta()`.
|
|
if ( empty( $args['auth_callback'] ) ) {
|
|
if ( is_protected_meta( $meta_key, $object_type ) ) {
|
|
$args['auth_callback'] = '__return_false';
|
|
} else {
|
|
$args['auth_callback'] = '__return_true';
|
|
}
|
|
}
|
|
|
|
// Back-compat: old sanitize and auth callbacks are applied to all of an object type.
|
|
if ( is_callable( $args['sanitize_callback'] ) ) {
|
|
if ( ! empty( $object_subtype ) ) {
|
|
add_filter( "sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $args['sanitize_callback'], 10, 4 );
|
|
} else {
|
|
add_filter( "sanitize_{$object_type}_meta_{$meta_key}", $args['sanitize_callback'], 10, 3 );
|
|
}
|
|
}
|
|
|
|
if ( is_callable( $args['auth_callback'] ) ) {
|
|
if ( ! empty( $object_subtype ) ) {
|
|
add_filter( "auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $args['auth_callback'], 10, 6 );
|
|
} else {
|
|
add_filter( "auth_{$object_type}_meta_{$meta_key}", $args['auth_callback'], 10, 6 );
|
|
}
|
|
}
|
|
|
|
if ( array_key_exists( 'default', $args ) ) {
|
|
$schema = $args;
|
|
if ( is_array( $args['show_in_rest'] ) && isset( $args['show_in_rest']['schema'] ) ) {
|
|
$schema = array_merge( $schema, $args['show_in_rest']['schema'] );
|
|
}
|
|
|
|
$check = rest_validate_value_from_schema( $args['default'], $schema );
|
|
if ( is_wp_error( $check ) ) {
|
|
_doing_it_wrong( __FUNCTION__, __( 'When registering a default meta value the data must match the type provided.' ), '5.5.0' );
|
|
|
|
return false;
|
|
}
|
|
|
|
if ( ! has_filter( "default_{$object_type}_metadata", 'filter_default_metadata' ) ) {
|
|
add_filter( "default_{$object_type}_metadata", 'filter_default_metadata', 10, 5 );
|
|
}
|
|
}
|
|
|
|
// Global registry only contains meta keys registered with the array of arguments added in 4.6.0.
|
|
if ( ! $has_old_auth_cb && ! $has_old_sanitize_cb ) {
|
|
unset( $args['object_subtype'] );
|
|
|
|
$wp_meta_keys[ $object_type ][ $object_subtype ][ $meta_key ] = $args;
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Filters into default_{$object_type}_metadata and adds in default value.
|
|
*
|
|
* @since 5.5.0
|
|
*
|
|
* @param mixed $value Current value passed to filter.
|
|
* @param int $object_id ID of the object metadata is for.
|
|
* @param string $meta_key Metadata key.
|
|
* @param bool $single If true, return only the first value of the specified `$meta_key`.
|
|
* This parameter has no effect if `$meta_key` is not specified.
|
|
* @param string $meta_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @return mixed An array of default values if `$single` is false.
|
|
* The default value of the meta field if `$single` is true.
|
|
*/
|
|
function filter_default_metadata( $value, $object_id, $meta_key, $single, $meta_type ) {
|
|
global $wp_meta_keys;
|
|
|
|
if ( wp_installing() ) {
|
|
return $value;
|
|
}
|
|
|
|
if ( ! is_array( $wp_meta_keys ) || ! isset( $wp_meta_keys[ $meta_type ] ) ) {
|
|
return $value;
|
|
}
|
|
|
|
$defaults = array();
|
|
foreach ( $wp_meta_keys[ $meta_type ] as $sub_type => $meta_data ) {
|
|
foreach ( $meta_data as $_meta_key => $args ) {
|
|
if ( $_meta_key === $meta_key && array_key_exists( 'default', $args ) ) {
|
|
$defaults[ $sub_type ] = $args;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ! $defaults ) {
|
|
return $value;
|
|
}
|
|
|
|
// If this meta type does not have subtypes, then the default is keyed as an empty string.
|
|
if ( isset( $defaults[''] ) ) {
|
|
$metadata = $defaults[''];
|
|
} else {
|
|
$sub_type = get_object_subtype( $meta_type, $object_id );
|
|
if ( ! isset( $defaults[ $sub_type ] ) ) {
|
|
return $value;
|
|
}
|
|
$metadata = $defaults[ $sub_type ];
|
|
}
|
|
|
|
if ( $single ) {
|
|
$value = $metadata['default'];
|
|
} else {
|
|
$value = array( $metadata['default'] );
|
|
}
|
|
|
|
return $value;
|
|
}
|
|
|
|
/**
|
|
* Checks if a meta key is registered.
|
|
*
|
|
* @since 4.6.0
|
|
* @since 4.9.8 The `$object_subtype` parameter was added.
|
|
*
|
|
* @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param string $meta_key Metadata key.
|
|
* @param string $object_subtype Optional. The subtype of the object type. Default empty string.
|
|
* @return bool True if the meta key is registered to the object type and, if provided,
|
|
* the object subtype. False if not.
|
|
*/
|
|
function registered_meta_key_exists( $object_type, $meta_key, $object_subtype = '' ) {
|
|
$meta_keys = get_registered_meta_keys( $object_type, $object_subtype );
|
|
|
|
return isset( $meta_keys[ $meta_key ] );
|
|
}
|
|
|
|
/**
|
|
* Unregisters a meta key from the list of registered keys.
|
|
*
|
|
* @since 4.6.0
|
|
* @since 4.9.8 The `$object_subtype` parameter was added.
|
|
*
|
|
* @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param string $meta_key Metadata key.
|
|
* @param string $object_subtype Optional. The subtype of the object type. Default empty string.
|
|
* @return bool True if successful. False if the meta key was not registered.
|
|
*/
|
|
function unregister_meta_key( $object_type, $meta_key, $object_subtype = '' ) {
|
|
global $wp_meta_keys;
|
|
|
|
if ( ! registered_meta_key_exists( $object_type, $meta_key, $object_subtype ) ) {
|
|
return false;
|
|
}
|
|
|
|
$args = $wp_meta_keys[ $object_type ][ $object_subtype ][ $meta_key ];
|
|
|
|
if ( isset( $args['sanitize_callback'] ) && is_callable( $args['sanitize_callback'] ) ) {
|
|
if ( ! empty( $object_subtype ) ) {
|
|
remove_filter( "sanitize_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $args['sanitize_callback'] );
|
|
} else {
|
|
remove_filter( "sanitize_{$object_type}_meta_{$meta_key}", $args['sanitize_callback'] );
|
|
}
|
|
}
|
|
|
|
if ( isset( $args['auth_callback'] ) && is_callable( $args['auth_callback'] ) ) {
|
|
if ( ! empty( $object_subtype ) ) {
|
|
remove_filter( "auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $args['auth_callback'] );
|
|
} else {
|
|
remove_filter( "auth_{$object_type}_meta_{$meta_key}", $args['auth_callback'] );
|
|
}
|
|
}
|
|
|
|
unset( $wp_meta_keys[ $object_type ][ $object_subtype ][ $meta_key ] );
|
|
|
|
// Do some clean up.
|
|
if ( empty( $wp_meta_keys[ $object_type ][ $object_subtype ] ) ) {
|
|
unset( $wp_meta_keys[ $object_type ][ $object_subtype ] );
|
|
}
|
|
if ( empty( $wp_meta_keys[ $object_type ] ) ) {
|
|
unset( $wp_meta_keys[ $object_type ] );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Retrieves a list of registered metadata args for an object type, keyed by their meta keys.
|
|
*
|
|
* @since 4.6.0
|
|
* @since 4.9.8 The `$object_subtype` parameter was added.
|
|
*
|
|
* @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param string $object_subtype Optional. The subtype of the object type. Default empty string.
|
|
* @return array[] List of registered metadata args, keyed by their meta keys.
|
|
*/
|
|
function get_registered_meta_keys( $object_type, $object_subtype = '' ) {
|
|
global $wp_meta_keys;
|
|
|
|
if ( ! is_array( $wp_meta_keys ) || ! isset( $wp_meta_keys[ $object_type ] ) || ! isset( $wp_meta_keys[ $object_type ][ $object_subtype ] ) ) {
|
|
return array();
|
|
}
|
|
|
|
return $wp_meta_keys[ $object_type ][ $object_subtype ];
|
|
}
|
|
|
|
/**
|
|
* Retrieves registered metadata for a specified object.
|
|
*
|
|
* The results include both meta that is registered specifically for the
|
|
* object's subtype and meta that is registered for the entire object type.
|
|
*
|
|
* @since 4.6.0
|
|
*
|
|
* @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param int $object_id ID of the object the metadata is for.
|
|
* @param string $meta_key Optional. Registered metadata key. If not specified, retrieve all registered
|
|
* metadata for the specified object.
|
|
* @return mixed A single value or array of values for a key if specified. An array of all registered keys
|
|
* and values for an object ID if not. False if a given $meta_key is not registered.
|
|
*/
|
|
function get_registered_metadata( $object_type, $object_id, $meta_key = '' ) {
|
|
$object_subtype = get_object_subtype( $object_type, $object_id );
|
|
|
|
if ( ! empty( $meta_key ) ) {
|
|
if ( ! empty( $object_subtype ) && ! registered_meta_key_exists( $object_type, $meta_key, $object_subtype ) ) {
|
|
$object_subtype = '';
|
|
}
|
|
|
|
if ( ! registered_meta_key_exists( $object_type, $meta_key, $object_subtype ) ) {
|
|
return false;
|
|
}
|
|
|
|
$meta_keys = get_registered_meta_keys( $object_type, $object_subtype );
|
|
$meta_key_data = $meta_keys[ $meta_key ];
|
|
|
|
$data = get_metadata( $object_type, $object_id, $meta_key, $meta_key_data['single'] );
|
|
|
|
return $data;
|
|
}
|
|
|
|
$data = get_metadata( $object_type, $object_id );
|
|
if ( ! $data ) {
|
|
return array();
|
|
}
|
|
|
|
$meta_keys = get_registered_meta_keys( $object_type );
|
|
if ( ! empty( $object_subtype ) ) {
|
|
$meta_keys = array_merge( $meta_keys, get_registered_meta_keys( $object_type, $object_subtype ) );
|
|
}
|
|
|
|
return array_intersect_key( $data, $meta_keys );
|
|
}
|
|
|
|
/**
|
|
* Filters out `register_meta()` args based on an allowed list.
|
|
*
|
|
* `register_meta()` args may change over time, so requiring the allowed list
|
|
* to be explicitly turned off is a warranty seal of sorts.
|
|
*
|
|
* @access private
|
|
* @since 5.5.0
|
|
*
|
|
* @param array $args Arguments from `register_meta()`.
|
|
* @param array $default_args Default arguments for `register_meta()`.
|
|
* @return array Filtered arguments.
|
|
*/
|
|
function _wp_register_meta_args_allowed_list( $args, $default_args ) {
|
|
return array_intersect_key( $args, $default_args );
|
|
}
|
|
|
|
/**
|
|
* Returns the object subtype for a given object ID of a specific type.
|
|
*
|
|
* @since 4.9.8
|
|
*
|
|
* @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user',
|
|
* or any other object type with an associated meta table.
|
|
* @param int $object_id ID of the object to retrieve its subtype.
|
|
* @return string The object subtype or an empty string if unspecified subtype.
|
|
*/
|
|
function get_object_subtype( $object_type, $object_id ) {
|
|
$object_id = (int) $object_id;
|
|
$object_subtype = '';
|
|
|
|
switch ( $object_type ) {
|
|
case 'post':
|
|
$post_type = get_post_type( $object_id );
|
|
|
|
if ( ! empty( $post_type ) ) {
|
|
$object_subtype = $post_type;
|
|
}
|
|
break;
|
|
|
|
case 'term':
|
|
$term = get_term( $object_id );
|
|
if ( ! $term instanceof WP_Term ) {
|
|
break;
|
|
}
|
|
|
|
$object_subtype = $term->taxonomy;
|
|
break;
|
|
|
|
case 'comment':
|
|
$comment = get_comment( $object_id );
|
|
if ( ! $comment ) {
|
|
break;
|
|
}
|
|
|
|
$object_subtype = 'comment';
|
|
break;
|
|
|
|
case 'user':
|
|
$user = get_user_by( 'id', $object_id );
|
|
if ( ! $user ) {
|
|
break;
|
|
}
|
|
|
|
$object_subtype = 'user';
|
|
break;
|
|
}
|
|
|
|
/**
|
|
* Filters the object subtype identifier for a non-standard object type.
|
|
*
|
|
* The dynamic portion of the hook name, `$object_type`, refers to the meta object type
|
|
* (post, comment, term, user, or any other type with an associated meta table).
|
|
*
|
|
* Possible hook names include:
|
|
*
|
|
* - `get_object_subtype_post`
|
|
* - `get_object_subtype_comment`
|
|
* - `get_object_subtype_term`
|
|
* - `get_object_subtype_user`
|
|
*
|
|
* @since 4.9.8
|
|
*
|
|
* @param string $object_subtype Empty string to override.
|
|
* @param int $object_id ID of the object to get the subtype for.
|
|
*/
|
|
return apply_filters( "get_object_subtype_{$object_type}", $object_subtype, $object_id );
|
|
}
|