Current File : /var/www/html/higroup/wp-content/plugins/the-events-calendar/common/src/Tribe/Meta/Chunker.php
<?php
/**
* Class Tribe__Meta__Chunker
*
* Chunks large meta to avoid killing the database in queries.
*
* Databases can have a `max_allowed_packet` value set as low as 1M; we often need to store large blobs of data way
* over that and doing so would kill the database ("MySQL server has gone away"...); registering a meta to be chunked
* if needed avoids that.
*
* Example usage:
*
* $chunker = tribe( 'chunker' );
* $chunker->register_for_chunking( $post_id, 'my_meta_key' );
*
* // ... some code later...
*
* // data will be transparently chunked if needed...
* update_meta( $post_id, 'my_meta_key', $some_looooooooooong_string );
*
* // ...and glued back together when reading
* get_post_meta( $post_id, 'my_meta_key', true );
*
* By default the Chunker supports the `post` post type only, filter the `tribe_meta_chunker_post_types` to add yours:
*
* add_filter( 'tribe_meta_chunker_post_types`, 'my_chunkable_post_types' );
* function my_chunkable_post_types( $post_types ) {
* $post_types[] = 'book';
*
* return $post_types;
* }
*
* or filter the `tribe_meta_chunker_post_types` filter.
*/
class Tribe__Meta__Chunker {
/**
* @var string The key used to cache the class results in the WordPress object cache.
*/
protected $cache_group = 'post_meta';
/**
* @var string
*/
protected $chunked_keys_option_name = '_tribe_chunker_chunked_keys';
/**
* @var array The cache that will store chunks to avoid middleware operations from fetching the database.
*/
protected $chunks_cache = null;
/**
* @var array The cache that will store the IDs of the posts that have at least one meta key registered
* for chunking.
*/
protected $post_ids_cache = null;
/**
* @var string The separator that's used to mark the start of each chunk.
*/
protected $chunk_separator = '{{{TCSEP}}}';
/**
* @var array The post types supported by the Chunker.
*/
protected $post_types = [];
/**
* @var int The filter priority at which Chunker will operate on meta CRUD operations.
*/
protected $filter_priority = - 1;
/**
* @var string The meta key prefix applied ot any Chunker related post meta.
*/
protected $meta_key_prefix = '_tribe_chunker_';
/**
* @var int The largest size allowed by the Chunker.
*/
protected $max_chunk_size;
/**
* Hooks the chunker on metadata operations for each supported post types.
*
* When changing post types unhook and rehook it like:
*
* $chunker = tribe( 'chunker' );
* $chunker->set_post_types( array_merge( $my_post_types, $chunker->get_post_types() );
* $chunker->unhook();
* $chunker->hook();
*/
public function hook() {
if ( empty( $this->post_types ) ) {
return;
}
add_filter( 'update_post_metadata', [ $this, 'filter_update_metadata' ], $this->filter_priority, 4 );
add_filter( 'delete_post_metadata', [ $this, 'filter_delete_metadata' ], $this->filter_priority, 3 );
add_filter( 'add_post_metadata', [ $this, 'filter_add_metadata' ], $this->filter_priority, 4 );
add_filter( 'get_post_metadata', [ $this, 'filter_get_metadata' ], $this->filter_priority, 4 );
add_action( 'deleted_post', [ $this, 'remove_post_entry' ] );
}
/**
* Primes the chunked cache.
*
* This will just fetch the keys for the supported post types, not the values.
*
* @param bool $force Whether the cache should be reprimed even if already primed.
*/
public function prime_chunks_cache( $force = false ) {
if ( false === $force && null !== $this->chunks_cache ) {
return;
}
$this->chunks_cache = [];
$this->post_ids_cache = [];
$chunked_keys = get_option( $this->chunked_keys_option_name );
if ( empty( $chunked_keys ) ) {
return;
}
foreach ( $chunked_keys as $post_id => $keys ) {
if ( ! is_array( $keys ) || empty( $keys ) ) {
continue;
}
$this->post_ids_cache[] = $post_id;
foreach ( $keys as $key ) {
$this->chunks_cache[ $this->get_key( $post_id, $key ) ] = null;
}
}
}
/**
* Gets the key used to identify a post ID and meta key in the chunks cache.
*
* @param int $post_id
* @param string $meta_key
* @return string
*/
public function get_key( $post_id, $meta_key ) {
return "{$post_id}::{$meta_key}";
}
/**
* Register a post ID and meta key to be chunked if needed.
*
* @param int $post_id
* @param string $meta_key
*
* @return bool `false` if the post type is not supported, `true` otherwise
*/
public function register_chunking_for( $post_id, $meta_key ) {
if ( ! $this->is_supported_post_type( $post_id ) ) {
return false;
}
$this->tag_as_chunkable( $post_id, $meta_key );
return true;
}
/**
* Whether a post type is supported or not.
*
* @param int $object_id
*
* @return bool
*/
protected function is_supported_post_type( $object_id ) {
$post = get_post( $object_id );
if ( empty( $post ) || ! in_array( $post->post_type, $this->post_types ) ) {
return false;
}
return true;
}
/**
* Tags a post ID and meta key couple as "chunkable" if needed.
*
* @param $post_id
* @param $meta_key
*/
protected function tag_as_chunkable( $post_id, $meta_key ) {
$key = $this->get_key( $post_id, $meta_key );
$this->prime_chunks_cache();
if ( ! array_key_exists( $key, $this->chunks_cache ) ) {
$this->chunks_cache[ $key ] = null;
}
$this->post_ids_cache[] = $post_id;
$option = (array) get_option( $this->chunked_keys_option_name );
if ( ! isset( $option[ $post_id ] ) ) {
$option[ $post_id ] = [ $meta_key ];
} else {
$option[ $post_id ][] = $meta_key;
}
update_option( $this->chunked_keys_option_name, array_filter( $option ), true );
}
/**
* Returns the meta key used to indicate if a meta key for a post is marked as chunkable.
*
* @param string $meta_key
*
* @return string
*/
public function get_chunkable_meta_key( $meta_key ) {
return $this->meta_key_prefix . $meta_key;
}
/**
* Filters the add operations.
*
* Due to how the system works no more than one chunked entry can be stored.
*
* @param mixed $check
* @param int $object_id
* @param string $meta_key
* @param string $meta_value
*
* @see add_metadata()
*
* @return bool
*/
public function filter_add_metadata( $check, $object_id, $meta_key, $meta_value ) {
return $this->filter_update_metadata( $check, $object_id, $meta_key, $meta_value );
}
/**
* Filters the updated operations.
*
* @param mixed $check
* @param int $object_id
* @param string $meta_key
* @param string $meta_value
*
* @see update_metadata()
*
* @return bool
*/
public function filter_update_metadata( $check, $object_id, $meta_key, $meta_value ) {
if ( ! $this->applies( $object_id, $meta_key ) ) {
return $check;
}
/**
* Filters the chunked meta update operation.
*
* Returning a non null value here will make the function return that value immediately.
*
* @param mixed $updated
* @param int $object_id The post ID
* @param string $meta_key
* @param mixed $meta_value
*
* @since 4.5.6
*/
$updated = apply_filters( 'tribe_meta_chunker_update_meta', null, $object_id, $meta_key, $meta_value );
if ( null !== $updated ) {
return $updated;
}
$this->delete_chunks( $object_id, $meta_key );
$this->remove_checksum_for( $object_id, $meta_key );
wp_cache_delete( $object_id, $this->cache_group );
if ( $this->should_be_chunked( $object_id, $meta_key, $meta_value ) ) {
$this->insert_chunks( $object_id, $meta_key );
return true;
} else {
$this->cache_delete( $object_id, $meta_key );
$this->insert_meta( $object_id, $meta_key, $meta_value );
return true;
}
return $check;
}
/**
* Whether the chunker should operate on this post ID and meta key couple or not.
*
* @param int $object_id
* @param string $meta_key
*
* @return bool
*/
protected function applies( $object_id, $meta_key ) {
$applies = ! $this->is_chunker_logic_meta_key( $meta_key )
&& $this->is_supported_post_type( $object_id )
&& $this->is_chunkable( $object_id, $meta_key );
/**
* Filters whether the meta chunker will apply to a post ID and meta key or not.
*
* The `$meta_key` parameter might be empty.
*
* @param bool $applies
* @param int $object_id
* @param string $meta_key
*
* @since 4.5.6
*/
return apply_filters( 'tribe_meta_chunker_applies', $applies, $object_id, $meta_key );
}
/**
* Whether the meta key is one used by the chunker to keep track of its operations or not.
*
* @param string $meta_key
*
* @return bool
*/
protected function is_chunker_logic_meta_key( $meta_key ) {
if ( ! is_string( $meta_key ) ) {
return false;
}
return 0 === strpos( $meta_key, $this->meta_key_prefix );
}
/**
* Whether a post ID and meta key couple is registered as chunkable or not.
*
* If no meta key is passed then the function will check if there is at least
* one meta key registered for chunking for the specified post ID.
*
* @param int $post_id
* @param string $meta_key
*
* @return bool
*/
public function is_chunkable( $post_id, $meta_key = null ) {
$this->prime_chunks_cache();
return ! empty( $meta_key )
? array_key_exists( $this->get_key( $post_id, $meta_key ), $this->chunks_cache )
: in_array( $post_id, $this->post_ids_cache );
}
/**
* Deletes all the chunks for a post ID and meta key couple.
*
* @param int $object_id
* @param string $meta_key
*/
protected function delete_chunks( $object_id, $meta_key ) {
/** @var wpdb $wpdb */
global $wpdb;
$chunk_meta_key = $this->get_chunk_meta_key( $meta_key );
$delete = "DELETE FROM {$wpdb->postmeta} WHERE (meta_key = %s OR meta_key = %s) AND post_id = %d";
$wpdb->query( $wpdb->prepare( $delete, $chunk_meta_key, $meta_key, $object_id ) );
}
/**
* Returns the meta key used to indicate a chunk for a meta key.
*
* @param string $meta_key
*
* @return string
*/
public function get_chunk_meta_key( $meta_key ) {
return $this->get_chunkable_meta_key( $meta_key ) . '_chunk';
}
/**
* Removes the checksum used to verify the integrity of the chunked values.
*
* @param int $object_id
* @param string $meta_key
*/
protected function remove_checksum_for( $object_id, $meta_key ) {
/** @var wpdb $wpdb */
global $wpdb;
$data = [
'post_id' => $object_id,
'meta_key' => $this->get_checksum_key( $meta_key ),
];
$wpdb->delete( $wpdb->postmeta, $data );
}
/**
* Returns the meta_key used to store the chunked meta checksum for a specified meta key.
*
* @param string $meta_key
*
* @return string
*/
public function get_checksum_key( $meta_key ) {
return $this->meta_key_prefix . $meta_key . '_checksum';
}
/**
* Whether a value should be chunked or not.
*
* @param int $post_id
* @param string $meta_key
* @param mixed $meta_value
*
* @return bool
*/
public function should_be_chunked( $post_id, $meta_key, $meta_value ) {
$should_be_chunked = false;
$max_allowed_packet = $this->get_max_chunk_size();
$serialized = maybe_serialize( $meta_value );
$byte_size = $this->get_byte_size( $serialized );
$this->prime_chunks_cache();
// we use .8 and not 1 to allow for MySQL instructions to use 20% of the string size
if ( $byte_size > .8 * $max_allowed_packet ) {
$chunk_size = ceil( $max_allowed_packet * 0.75 );
$key = $this->get_key( $post_id, $meta_key );
$this->chunks_cache[ $key ] = $this->prefix_chunks( $this->chunk( $serialized, $chunk_size ) );
$should_be_chunked = true;
}
return $should_be_chunked;
}
/**
* Returns the max chunk size in bytes.
*
* @return array|int|null|object
*/
public function get_max_chunk_size() {
if ( ! empty( $this->max_chunk_size ) ) {
return $this->max_chunk_size;
}
$max_size = tribe( 'db' )->get_max_allowed_packet_size();
/**
* Filters the max size of the of the chunks in bytes.
*
* @param int $max_size By default the `max_allowed_packet` from the database.
*/
$this->max_chunk_size = apply_filters( 'tribe_meta_chunker_max_size', $max_size );
return $max_size;
}
/**
* Sets the max chunk size.
*
* @param int $max_chunk_size The max chunk size in bytes.
*/
public function set_max_chunk_size( $max_chunk_size ) {
$this->max_chunk_size = $max_chunk_size;
}
/**
* Gets the size in bytes of something.
*
* @param mixed $data
*
* @return int
*/
public function get_byte_size( $data ) {
return strlen( utf8_decode( maybe_serialize( $data ) ) );
}
/**
* Prefixes each chunk with a sequence number.
*
* @param array $chunks
*
* @return array An array of chunks each prefixed with sequence number.
*/
protected function prefix_chunks( array $chunks ) {
$count = count( $chunks );
$prefixed = [];
for ( $i = 0; $i < $count; $i ++ ) {
$prefixed[] = "{$i}{$this->chunk_separator}{$chunks[$i]}";
}
return $prefixed;
}
/**
* Chunks a string.
*
* The chunks are not prefixed!
*
* @param string $serialized
* @param int $chunk_size
*
* @return array An array of unprefixed chunks.
*/
protected function chunk( $serialized, $chunk_size ) {
$sep = $this->chunk_separator;
$chunks = array_filter( explode( $sep, chunk_split( $serialized, $chunk_size, $sep ) ) );
return $chunks;
}
/**
* Inserts the chunks for a post ID and meta key couple in the database.
*
* The chunks are read from the array cache.
*
* @param int $object_id
* @param string $meta_key
*/
protected function insert_chunks( $object_id, $meta_key ) {
/** @var wpdb $wpdb */
global $wpdb;
$this->prime_chunks_cache();
$key = $this->get_key( $object_id, $meta_key );
$chunks = $this->chunks_cache[ $key ];
$chunk_meta_key = $this->get_chunk_meta_key( $meta_key );
$this->insert_meta( $object_id, $meta_key, $chunks[0] );
foreach ( $chunks as $chunk ) {
$wpdb->insert( $wpdb->postmeta, [
'post_id' => $object_id,
'meta_key' => $chunk_meta_key,
'meta_value' => $chunk,
] );
}
$glued = $this->glue_chunks( $this->get_chunks_for( $object_id, $meta_key ) );
$checksum_key = $this->get_checksum_key( $meta_key );
$wpdb->delete( $wpdb->postmeta, [ 'post_id' => $object_id, 'meta_key' => $checksum_key ] );
$wpdb->insert( $wpdb->postmeta, [
'post_id' => $object_id,
'meta_key' => $checksum_key,
'meta_value' => md5( $glued ),
] );
}
/**
* Inserts a meta value in the database.
*
* Convenience method to avoid infinite loop in hooks.
*
* @param int $object_id
* @param string $meta_key
* @param mixed $meta_value
*/
protected function insert_meta( $object_id, $meta_key, $meta_value ) {
/** @var wpdb $wpdb */
global $wpdb;
$data = [
'post_id' => $object_id,
'meta_key' => $meta_key,
'meta_value' => maybe_serialize( $meta_value ),
];
$wpdb->insert( $wpdb->postmeta, $data );
}
/**
* Glues the provided chunks.
*
* This method is sequence aware and should be used with what the `get_chunks_for` method returns.
*
* @param array $chunks
*
* @return string
*
* @see Tribe__Meta__Chunker::get_chunks_for()
*/
public function glue_chunks( array $chunks ) {
$ordered_chunks = [];
foreach ( $chunks as $chunk ) {
preg_match( '/(\\d+)' . preg_quote( $this->chunk_separator ) . '(.*)/', $chunk, $matches );
$ordered_chunks[ $matches[1] ] = $matches[2];
}
ksort( $ordered_chunks );
return implode( '', array_values( $ordered_chunks ) );
}
/**
* Returns the chunks stored in the database for a post ID and meta key couple.
*
* The chunks are returned as they are with prefix.
*
* @param int $object_id
* @param string $meta_key
*
* @return array|mixed
*/
public function get_chunks_for( $object_id, $meta_key ) {
$key = $this->get_key( $object_id, $meta_key );
$this->prime_chunks_cache();
if ( ! empty( $this->chunks_cache[ $key ] ) ) {
return $this->chunks_cache[ $key ];
}
/** @var wpdb $wpdb */
global $wpdb;
$chunk_meta_key = $this->get_chunk_meta_key( $meta_key );
$meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM {$wpdb->postmeta}
WHERE post_id = %d
AND meta_key = %s",
$object_id, $chunk_meta_key
) );
$meta_values = [];
foreach ( $meta_ids as $meta_id ) {
$query = $wpdb->prepare( "SELECT meta_value FROM {$wpdb->postmeta} WHERE meta_id = %d", $meta_id );
$meta_values[] = $wpdb->get_var( $query );
}
if ( ! empty( $meta_values ) ) {
$this->chunks_cache[ $this->get_key( $object_id, $meta_key ) ] = $meta_values;
} else {
$this->chunks_cache[ $this->get_key( $object_id, $meta_key ) ] = null;
}
return $meta_values;
}
/**
* Resets a post ID and meta key couple cache.
*
* @param int $object_id
* @param string $meta_key
*/
protected function cache_delete( $object_id, $meta_key ) {
$key = $this->get_key( $object_id, $meta_key );
$this->prime_chunks_cache();
if ( isset( $this->chunks_cache[ $key ] ) ) {
$this->chunks_cache[ $key ] = null;
}
}
/**
* Filters the delete operations.
*
* @param mixed $check
* @param int $object_id
* @param string $meta_key
*
* @return bool
*
* @see delete_metadata()
*/
public function filter_delete_metadata( $check, $object_id, $meta_key ) {
if ( ! $this->applies( $object_id, $meta_key ) ) {
return $check;
}
/**
* Filters the value returned when deleting a specific meta for a post.
*
* Returning a non null value here will make the function return that value immediately.
*
* @param mixed $deleted
* @param int $object_id The post ID
* @param string $meta_key The requested meta key
*
* @since 4.5.6
*/
$deleted = apply_filters( 'tribe_meta_chunker_delete_meta', null, $object_id, $meta_key );
if ( null !== $deleted ) {
return $deleted;
}
$has_chunked_meta = $this->is_chunked( $object_id, $meta_key );
if ( ! $has_chunked_meta ) {
return $check;
}
$this->cache_delete( $object_id, $meta_key );
$this->delete_chunks( $object_id, $meta_key );
wp_cache_delete( $object_id, $this->cache_group );
return true;
}
/**
* Whether a post ID and meta key couple has chunked meta or not.
*
* @param int $object_id
* @param string $meta_key
* @param bool $check_db Do verify the chunking state on the database.
*
* @return mixed
*/
public function is_chunked( $object_id, $meta_key, $check_db = false ) {
$key = $this->get_key( $object_id, $meta_key );
$this->prime_chunks_cache();
$chunked_in_cache = array_key_exists( $key, $this->chunks_cache ) && is_array( $this->chunks_cache[ $key ] );
return $chunked_in_cache;
}
/**
* Returns the checksum for the stored meta key to spot meta value corruption malforming.
*
* @param int $object_id
* @param string $meta_key
*
* @return string
*/
public function get_checksum_for( $object_id, $meta_key ) {
/** @var wpdb $wpdb */
global $wpdb;
$query = "SELECT meta_value FROM {$wpdb->postmeta} WHERE post_id = %d AND meta_key = %s";
$checksum = $wpdb->get_var( $wpdb->prepare( $query, $object_id, $this->get_checksum_key( $meta_key ) ) );
return ! empty( $checksum ) ? $checksum : '';
}
/**
* Handles the object destruction cycle to leave no traces behind.
*/
public function __destruct() {
$this->unhook();
}
/**
* Unhooks the Chunker from the metadata operations.
*/
public function unhook() {
remove_filter( 'update_post_metadata', [ $this, 'filter_update_metadata' ], $this->filter_priority );
remove_filter( 'delete_post_metadata', [ $this, 'filter_delete_metadata' ], $this->filter_priority );
remove_filter( 'add_post_metadata', [ $this, 'filter_add_metadata' ], $this->filter_priority );
remove_filter( 'get_post_metadata', [ $this, 'filter_get_metadata' ], $this->filter_priority );
remove_action( 'deleted_post', [ $this, 'remove_post_entry' ] );
}
/**
* Filters the get operations.
*
* @param mixed $check
* @param int $object_id
* @param string $meta_key
* @param bool $single
*
* @return array|mixed
*
* @see get_metadata()
*/
public function filter_get_metadata( $check, $object_id, $meta_key, $single ) {
if ( ! $this->applies( $object_id, $meta_key ) ) {
return $check;
}
$all_meta = wp_cache_get( $object_id, $this->cache_group );
if ( ! $all_meta ) {
$all_meta = $this->get_all_meta_for( $object_id );
wp_cache_set( $object_id, $all_meta, $this->cache_group );
}
// getting all the meta
if ( empty( $meta_key ) ) {
return $all_meta;
}
// why not take $single into account? See condition check on the filter to understand.
$meta_value = isset( $all_meta[ $meta_key ] )
? array_map( 'maybe_unserialize', $all_meta[ $meta_key ] )
: '';
/**
* Filters the value returned when getting a specific meta for a post.
*
* Returning a non null value here will make the function return that value immediately.
*
* @param mixed $meta_value
* @param int $object_id The post ID
* @param string $meta_key The requested meta key
*
* @since 4.5.6
*/
$meta_value = apply_filters( 'tribe_meta_chunker_get_meta', $meta_value, $object_id, $meta_key );
if ( $single ) {
return (array) $meta_value;
} else {
return ! empty( $meta_value ) ? $meta_value : '';
}
}
/**
* Returns all the meta for a post ID.
*
* The meta includes the chunked one but not the chunker logic meta keys.
* The return format is the same used by the `get_post_meta( $post_id )` function.
*
* @param int $object_id
*
* @return array An array containing all meta including the chunked one.
*
* @see get_post_meta() with empty `$meta_key` argument.
*/
public function get_all_meta_for( $object_id ) {
$all_meta = $this->get_all_meta( $object_id );
if ( empty( $all_meta ) ) {
return [];
}
$grouped = [];
foreach ( $all_meta as $entry ) {
if ( ! isset( $grouped[ $entry['meta_key'] ] ) ) {
$grouped[ $entry['meta_key'] ] = [ $entry['meta_value'] ];
} else {
$grouped[ $entry['meta_key'] ][] = $entry['meta_value'];
}
}
$chunker_meta_keys = array_filter( array_keys( $grouped ), [ $this, 'is_chunker_logic_meta_key' ] );
if ( empty( $chunker_meta_keys ) ) {
return $grouped;
}
$checksum_keys = array_filter( $chunker_meta_keys, [ $this, 'is_chunker_checksum_key' ] );
if ( empty( $checksum_keys ) ) {
return $grouped;
}
$chunker_meta = array_intersect_key( $grouped, array_combine( $chunker_meta_keys, $chunker_meta_keys ) );
$normal_meta = array_diff_key( $grouped, array_combine( $chunker_meta_keys, $chunker_meta_keys ) );
foreach ( $checksum_keys as $checksum_key ) {
$normal_meta_key = str_replace( [ $this->meta_key_prefix, '_checksum' ], '', $checksum_key );
$chunk_meta_key = $this->get_chunk_meta_key( $normal_meta_key );
if ( empty( $chunker_meta[ $chunk_meta_key ] ) ) {
continue;
}
$normal_meta[ $normal_meta_key ] = [ $this->glue_chunks( $chunker_meta[ $chunk_meta_key ] ) ];
}
return $normal_meta;
}
/**
* Fetches all the meta for a post.
*
* @param int $object_id
*
* @return array|null|object
*/
protected function get_all_meta( $object_id ) {
/**
* Filters the value returned when getting all the meta for a post.
*
* Returning a non null value here will make the function return that value immediately.
*
* @param mixed $all_meta
* @param int $object_id The post ID
*
* @since 4.5.6
*/
$all_meta = apply_filters( 'tribe_meta_chunker_get_all_meta', null, $object_id );
if ( null !== $all_meta ) {
return $all_meta;
}
/** @var wpdb $wpdb */
global $wpdb;
$query = $wpdb->prepare( "SELECT meta_key, meta_value FROM {$wpdb->postmeta} WHERE post_id = %d", $object_id );
$results = $wpdb->get_results( $query, ARRAY_A );
return ! empty( $results ) && is_array( $results ) ? $results : [];
}
/**
* Returns the post types supported by the chunker.
*
* @return array
*/
public function get_post_types() {
return $this->post_types;
}
/**
* Sets the post types the Chunker should support.
*
* @param array $post_types
*/
public function set_post_types( array $post_types = null ) {
if ( null === $post_types ) {
/**
* Filters the chunk-able post types.
*
* @param array $post_types
*/
$this->post_types = apply_filters( 'tribe_meta_chunker_post_types', $this->post_types );
return;
}
$this->post_types = $post_types;
}
/**
* Returns the name of the option that stores the keys registered for chunking for each post.
*
* @return string
*/
public function get_key_option_name() {
return $this->chunked_keys_option_name;
}
/**
* Returns the cache group used by the meta chunker.
*
* @return string
*/
public function get_cache_group() {
return $this->cache_group;
}
/**
* Asserts that a meta key is not a chunk meta key.
*
* @param string $meta_key
*
* @return bool
*/
protected function is_chunker_checksum_key( $meta_key ) {
return preg_match( "/^{$this->meta_key_prefix}.*_checksum$/", $meta_key );
}
/**
* Removes the entries associated with a deleted post from the cache and the database option.
*
* @param int $post_id A post ID
*/
public function remove_post_entry( $post_id ) {
$this->prime_chunks_cache();
foreach ( $this->chunks_cache as $key => $value ) {
if ( 0 === strpos( $key, (string) $post_id ) ) {
unset( $this->chunks_cache[ $key ] );
}
}
if ( ! empty( $this->chunks_cache ) ) {
update_option( $this->chunked_keys_option_name, $this->chunks_cache );
} else {
delete_option( $this->chunked_keys_option_name );
}
}
}
Mini Shell