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<?php
/**
* Meta Functions
*
* @package wp-ulike
* @author TechnoWich 2024
* @link https://wpulike.com
*/
// If this file is called directly, abort.
if ( ! defined( 'WPINC' ) ) {
die('No Naughty Business Please !');
}
if( ! function_exists( 'wp_ulike_add_meta_data' ) ){
/**
* Adds metadata for the specified object.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $object_id ID of the object metadata is for.
* @param string $meta_group Metadata group.
* @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 wp_ulike_add_meta_data( $object_id, $meta_group, $meta_key, $meta_value, $unique = false ) {
global $wpdb;
if ( ! $meta_group || ! $meta_key || ! is_numeric( $object_id ) ) {
return false;
}
$object_id = absint( $object_id );
if ( ! $object_id ) {
return false;
}
$table = $wpdb->prefix . 'ulike_meta';
$column = 'item_id';
$id_column = 'meta_id';
// expected_slashed ($meta_key)
$meta_group = wp_unslash( $meta_group );
$meta_key = wp_unslash( $meta_key );
$meta_value = wp_unslash( $meta_value );
$check = apply_filters( "wp_ulike_add_{$meta_group}_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_group = %s AND meta_key = %s AND $column = %d",
$meta_group,
$meta_key,
$object_id
)
) ) {
return false;
}
$_meta_value = $meta_value;
$meta_value = maybe_serialize( $meta_value );
do_action( "wp_ulike_add_{$meta_group}_meta", $object_id, $meta_key, $_meta_value );
$result = $wpdb->insert(
$table,
array(
$column => $object_id,
'meta_group' => $meta_group,
'meta_key' => $meta_key,
'meta_value' => $meta_value,
)
);
if ( ! $result ) {
return false;
}
$mid = (int) $wpdb->insert_id;
wp_cache_delete( $object_id, sprintf( 'wp_ulike_%s_meta', $meta_group ) );
do_action( "wp_ulike_added_{$meta_group}_meta", $mid, $object_id, $meta_key, $_meta_value );
return $mid;
}
}
if( ! function_exists( 'wp_ulike_update_meta_data' ) ){
/**
* Updates metadata for the specified object. If no value already exists for the specified object
* ID and metadata key, the metadata will be added.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int $object_id ID of the object metadata is for.
* @param string $meta_key Metadata key.
* @param string $meta_group Metadata group.
* @param mixed $meta_value Metadata value. Must be serializable if non-scalar.
* @param mixed $prev_value Optional. If specified, only update existing metadata entries
* with this value. Otherwise, update all entries.
* @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.
*/
function wp_ulike_update_meta_data( $object_id, $meta_group, $meta_key, $meta_value, $prev_value = '' ) {
global $wpdb;
if ( ! $meta_group || ! $meta_key || ! is_numeric( $object_id ) ) {
return false;
}
$object_id = absint( $object_id );
if ( ! $object_id ) {
return false;
}
$table = $wpdb->prefix . 'ulike_meta';
$column = 'item_id';
$id_column = 'meta_id';
// expected_slashed ($meta_key)
$raw_meta_group = $meta_group;
$meta_group = wp_unslash( $meta_group );
$raw_meta_key = $meta_key;
$meta_key = wp_unslash( $meta_key );
$passed_value = $meta_value;
$meta_value = wp_unslash( $meta_value );
$check = apply_filters( "wp_ulike_update_{$meta_group}_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 = wp_ulike_get_meta_data_raw( $object_id, $meta_group, $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_group = %s AND meta_key = %s AND $column = %d", $meta_group, $meta_key, $object_id ) );
if ( empty( $meta_ids ) ) {
return wp_ulike_add_meta_data( $object_id, $raw_meta_group, $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_group' => $meta_group,
'meta_key' => $meta_key
);
if ( ! empty( $prev_value ) ) {
$prev_value = maybe_serialize( $prev_value );
$where['meta_value'] = $prev_value;
}
foreach ( $meta_ids as $meta_id ) {
do_action( "wp_ulike_update_{$meta_group}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
}
$result = $wpdb->update( $table, $data, $where );
if ( ! $result ) {
return false;
}
wp_cache_delete( $object_id, sprintf( 'wp_ulike_%s_meta', $meta_group ) );
foreach ( $meta_ids as $meta_id ) {
do_action( "wp_ulike_updated_{$meta_group}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
}
return true;
}
}
if( ! function_exists( 'wp_ulike_update_meta_cache' ) ){
/**
* Updates the metadata cache for the specified objects.
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @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 wp_ulike_update_meta_cache( $object_ids, $meta_group ) {
global $wpdb;
if ( ! $object_ids || ! $meta_group ) {
return false;
}
$table = $wpdb->prefix . 'ulike_meta';
$column = 'item_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 );
$check = apply_filters( "wp_ulike_update_{$meta_group}_metadata_cache", null, $object_ids );
if ( null !== $check ) {
return (bool) $check;
}
$cache_key = sprintf( 'wp_ulike_%s_meta', $meta_group );
$non_cached_ids = array();
$cache = array();
// wp_cache_get_multiple function is exist only on wp +5.5
if( function_exists( 'wp_cache_get_multiple' ) ){
$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;
}
}
} else {
foreach ( $object_ids as $id ) {
$cached_object = wp_cache_get( $id, $cache_key );
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 = join( ',', $non_cached_ids );
$id_column = 'meta_id';
$meta_list = $wpdb->get_results( "SELECT $column, meta_group, meta_key, meta_value FROM $table WHERE $column IN ($id_list) AND meta_group = '$meta_group' ORDER BY $id_column ASC", ARRAY_A );
if ( ! empty( $meta_list ) ) {
foreach ( $meta_list as $metarow ) {
$mpid = absint( $metarow[ $column ] );
$mkey = $metarow['meta_group'] . '_' . $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;
}
}
foreach ( $non_cached_ids as $id ) {
if ( ! isset( $cache[ $id ] ) ) {
$cache[ $id ] = array();
}
wp_cache_add( $id, $cache[ $id ], $cache_key );
}
return $cache;
}
}
if( ! function_exists( 'wp_ulike_get_meta_data_raw' ) ){
/**
* Retrieves raw metadata value for the specified 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 Optional. Metadata key. If not specified, retrieve all metadata for
* the specified object. Default empty.
* @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 Single metadata value, or array of values. Null if the value does not exist.
* False if there's a problem with the parameters passed to the function.
*/
function wp_ulike_get_meta_data_raw( $object_id, $meta_group, $meta_key = '', $single = false ) {
if ( ! is_numeric( $object_id ) ) {
return false;
}
$object_id = absint( $object_id );
if ( ! $object_id ) {
return false;
}
$meta_cache = wp_cache_get( $object_id, sprintf( 'wp_ulike_%s_meta', $meta_group ) );
if ( ! $meta_cache ) {
$meta_cache = wp_ulike_update_meta_cache( array( $object_id ), $meta_group );
if ( isset( $meta_cache[ $object_id ] ) ) {
$meta_cache = $meta_cache[ $object_id ];
} else {
$meta_cache = null;
}
}
if ( ! $meta_key || ! $meta_group ) {
return $meta_cache;
}
if ( isset( $meta_cache[ $meta_group . '_' . $meta_key ] ) ) {
if ( $single ) {
return maybe_unserialize( $meta_cache[ $meta_group . '_' . $meta_key ][0] );
} else {
return array_map( 'maybe_unserialize', $meta_cache[ $meta_group . '_' . $meta_key ] );
}
}
if ( $single ) {
return '';
} else {
return array();
}
}
}
if( ! function_exists( 'wp_ulike_get_meta_data' ) ){
/**
* Retrieves the value of a metadata field for the specified object type and ID.
*
* If the meta field exists, a single value is returned if `$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.
*
*
* @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.
* @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 Single metadata value, or array of values.
* False if there's a problem with the parameters passed to the function.
*/
function wp_ulike_get_meta_data( $object_id, $meta_group, $meta_key = '', $single = false ) {
$value = wp_ulike_get_meta_data_raw( $object_id, $meta_group, $meta_key, $single );
if ( ! is_null( $value ) ) {
return $value;
}
return wp_ulike_get_meta_data_default( $object_id, $meta_group, $meta_key, $single );
}
}
if( ! function_exists( 'wp_ulike_get_meta_data_default' ) ){
/**
* Retrieves default metadata value for the specified meta key and object.
*
* By default, an empty string is returned if `$single` is true, or an empty array
* if it's false.
*
* @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 Single metadata value, or array of values.
*/
function wp_ulike_get_meta_data_default( $object_id, $meta_group, $meta_key, $single = false ) {
if ( $single ) {
$value = '';
} else {
$value = array();
}
$value = apply_filters( "wp_ulike_default_{$meta_group}_metadata", $value, $object_id, $meta_key, $single, $meta_group );
if ( ! $single && ! wp_is_numeric_array( $value ) ) {
$value = array( $value );
}
return $value;
}
}
if( ! function_exists( 'wp_ulike_delete_meta_data' ) ){
/**
* Deletes metadata for the specified object.
*
*
* @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.)
* @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 wp_ulike_delete_meta_data( $meta_group, $object_id, $meta_key, $meta_value = '', $delete_all = false ) {
global $wpdb;
if ( ! $meta_group || ! $meta_key || ! is_numeric( $object_id ) && ! $delete_all ) {
return false;
}
$object_id = absint( $object_id );
if ( ! $object_id && ! $delete_all ) {
return false;
}
$table = $wpdb->prefix . 'ulike_meta';
$type_column = 'item_id';
$id_column = 'meta_id';
// expected_slashed ($meta_key)
$meta_group = wp_unslash( $meta_group );
$meta_key = wp_unslash( $meta_key );
$meta_value = wp_unslash( $meta_value );
$check = apply_filters( "wp_ulike_delete_{$meta_group}_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_group = %s AND meta_key = %s", $meta_group, $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_group = %s AND meta_key = %s AND meta_value = %s", $meta_group, $meta_key, $meta_value ) );
} else {
$object_ids = $wpdb->get_col( $wpdb->prepare( "SELECT $type_column FROM $table WHERE meta_group = %s AND meta_key = %s", $meta_group, $meta_key ) );
}
}
do_action( "wp_ulike_delete_{$meta_group}_meta", $meta_ids, $object_id, $meta_key, $_meta_value );
$query = "DELETE FROM $table WHERE $id_column IN( " . implode( ',', $meta_ids ) . ' )';
$count = $wpdb->query( $query );
if ( ! $count ) {
return false;
}
if ( $delete_all ) {
foreach ( (array) $object_ids as $o_id ) {
wp_cache_delete( $o_id, sprintf( 'wp_ulike_%s_meta', $meta_group ) );
}
} else {
wp_cache_delete( $object_id, sprintf( 'wp_ulike_%s_meta', $meta_group ) );
}
do_action( "wp_ulike_deleted_{$meta_group}_meta", $meta_ids, $object_id, $meta_key, $_meta_value );
return true;
}
}
if( ! function_exists('wp_ulike_delete_vote_data') ){
/**
* Delete single vote data
*
* @param integer $ID
* @param string $type
* @return void
*/
function wp_ulike_delete_vote_data( $ID, $type ){
global $wpdb;
// delete meta values
wp_ulike_delete_meta_data( $type, $ID, 'count_distinct_dislike' );
wp_ulike_delete_meta_data( $type, $ID, 'count_distinct_like' );
wp_ulike_delete_meta_data( $type, $ID, 'count_total_dislike' );
wp_ulike_delete_meta_data( $type, $ID, 'count_total_like' );
wp_ulike_delete_meta_data( $type, $ID, 'likers_list' );
// delete table values
$settings = new wp_ulike_setting_type( $type );
$wpdb->query( $wpdb->prepare( "DELETE from {$wpdb->prefix}{$settings->getTableName()} WHERE {$settings->getColumnName()} = %d", $ID ) );
// Fires after the post item has been deleted.
do_action( 'wp_ulike_delete_vote_data', $ID, $type, $settings );
}
}
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