/**
* Link/Bookmark API
*
* @package WordPress
* @subpackage Bookmark
*/
/**
* Retrieves bookmark data.
*
* @since 2.1.0
*
* @global object $link Current link object.
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param int|stdClass $bookmark
* @param string $output Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which
* correspond to an stdClass object, an associative array, or a numeric array,
* respectively. Default OBJECT.
* @param string $filter Optional. How to sanitize bookmark fields. Default 'raw'.
* @return array|object|null Type returned depends on $output value.
*/
function get_bookmark( $bookmark, $output = OBJECT, $filter = 'raw' ) {
global $wpdb;
if ( empty( $bookmark ) ) {
if ( isset( $GLOBALS['link'] ) ) {
$_bookmark = & $GLOBALS['link'];
} else {
$_bookmark = null;
}
} elseif ( is_object( $bookmark ) ) {
wp_cache_add( $bookmark->link_id, $bookmark, 'bookmark' );
$_bookmark = $bookmark;
} else {
if ( isset( $GLOBALS['link'] ) && ( $GLOBALS['link']->link_id === $bookmark ) ) {
$_bookmark = & $GLOBALS['link'];
} else {
$_bookmark = wp_cache_get( $bookmark, 'bookmark' );
if ( ! $_bookmark ) {
$_bookmark = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->links WHERE link_id = %d LIMIT 1", $bookmark ) );
if ( $_bookmark ) {
$_bookmark->link_category = array_unique( wp_get_object_terms( $_bookmark->link_id, 'link_category', array( 'fields' => 'ids' ) ) );
wp_cache_add( $_bookmark->link_id, $_bookmark, 'bookmark' );
}
}
}
}
if ( ! $_bookmark ) {
return $_bookmark;
}
$_bookmark = sanitize_bookmark( $_bookmark, $filter );
if ( OBJECT === $output ) {
return $_bookmark;
} elseif ( ARRAY_A === $output ) {
return get_object_vars( $_bookmark );
} elseif ( ARRAY_N === $output ) {
return array_values( get_object_vars( $_bookmark ) );
} else {
return $_bookmark;
}
}
/**
* Retrieves single bookmark data item or field.
*
* @since 2.3.0
*
* @param string $field The name of the data field to return.
* @param int $bookmark The bookmark ID to get field.
* @param string $context Optional. The context of how the field will be used. Default 'display'.
* @return string|WP_Error
*/
function get_bookmark_field( $field, $bookmark, $context = 'display' ) {
$bookmark = (int) $bookmark;
$bookmark = get_bookmark( $bookmark );
if ( is_wp_error( $bookmark ) ) {
return $bookmark;
}
if ( ! is_object( $bookmark ) ) {
return '';
}
if ( ! isset( $bookmark->$field ) ) {
return '';
}
return sanitize_bookmark_field( $field, $bookmark->$field, $bookmark->link_id, $context );
}
/**
* Retrieves the list of bookmarks.
*
* Attempts to retrieve from the cache first based on MD5 hash of arguments. If
* that fails, then the query will be built from the arguments and executed. The
* results will be stored to the cache.
*
* @since 2.1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string|array $args {
* Optional. String or array of arguments to retrieve bookmarks.
*
* @type string $orderby How to order the links by. Accepts 'id', 'link_id', 'name', 'link_name',
* 'url', 'link_url', 'visible', 'link_visible', 'rating', 'link_rating',
* 'owner', 'link_owner', 'updated', 'link_updated', 'notes', 'link_notes',
* 'description', 'link_description', 'length' and 'rand'.
* When `$orderby` is 'length', orders by the character length of
* 'link_name'. Default 'name'.
* @type string $order Whether to order bookmarks in ascending or descending order.
* Accepts 'ASC' (ascending) or 'DESC' (descending). Default 'ASC'.
* @type int $limit Amount of bookmarks to display. Accepts any positive number or
* -1 for all. Default -1.
* @type string $category Comma-separated list of category IDs to include links from.
* Default empty.
* @type string $category_name Category to retrieve links for by name. Default empty.
* @type int|bool $hide_invisible Whether to show or hide links marked as 'invisible'. Accepts
* 1|true or 0|false. Default 1|true.
* @type int|bool $show_updated Whether to display the time the bookmark was last updated.
* Accepts 1|true or 0|false. Default 0|false.
* @type string $include Comma-separated list of bookmark IDs to include. Default empty.
* @type string $exclude Comma-separated list of bookmark IDs to exclude. Default empty.
* @type string $search Search terms. Will be SQL-formatted with wildcards before and after
* and searched in 'link_url', 'link_name' and 'link_description'.
* Default empty.
* }
* @return object[] List of bookmark row objects.
*/
function get_bookmarks( $args = '' ) {
global $wpdb;
$defaults = array(
'orderby' => 'name',
'order' => 'ASC',
'limit' => -1,
'category' => '',
'category_name' => '',
'hide_invisible' => 1,
'show_updated' => 0,
'include' => '',
'exclude' => '',
'search' => '',
);
$parsed_args = wp_parse_args( $args, $defaults );
$key = md5( serialize( $parsed_args ) );
$cache = wp_cache_get( 'get_bookmarks', 'bookmark' );
if ( 'rand' !== $parsed_args['orderby'] && $cache ) {
if ( is_array( $cache ) && isset( $cache[ $key ] ) ) {
$bookmarks = $cache[ $key ];
/**
* Filters the returned list of bookmarks.
*
* The first time the hook is evaluated in this file, it returns the cached
* bookmarks list. The second evaluation returns a cached bookmarks list if the
* link category is passed but does not exist. The third evaluation returns
* the full cached results.
*
* @since 2.1.0
*
* @see get_bookmarks()
*
* @param array $bookmarks List of the cached bookmarks.
* @param array $parsed_args An array of bookmark query arguments.
*/
return apply_filters( 'get_bookmarks', $bookmarks, $parsed_args );
}
}
if ( ! is_array( $cache ) ) {
$cache = array();
}
$inclusions = '';
if ( ! empty( $parsed_args['include'] ) ) {
$parsed_args['exclude'] = ''; // Ignore exclude, category, and category_name params if using include.
$parsed_args['category'] = '';
$parsed_args['category_name'] = '';
$inclinks = wp_parse_id_list( $parsed_args['include'] );
if ( count( $inclinks ) ) {
foreach ( $inclinks as $inclink ) {
if ( empty( $inclusions ) ) {
$inclusions = ' AND ( link_id = ' . $inclink . ' ';
} else {
$inclusions .= ' OR link_id = ' . $inclink . ' ';
}
}
}
}
if ( ! empty( $inclusions ) ) {
$inclusions .= ')';
}
$exclusions = '';
if ( ! empty( $parsed_args['exclude'] ) ) {
$exlinks = wp_parse_id_list( $parsed_args['exclude'] );
if ( count( $exlinks ) ) {
foreach ( $exlinks as $exlink ) {
if ( empty( $exclusions ) ) {
$exclusions = ' AND ( link_id <> ' . $exlink . ' ';
} else {
$exclusions .= ' AND link_id <> ' . $exlink . ' ';
}
}
}
}
if ( ! empty( $exclusions ) ) {
$exclusions .= ')';
}
if ( ! empty( $parsed_args['category_name'] ) ) {
$parsed_args['category'] = get_term_by( 'name', $parsed_args['category_name'], 'link_category' );
if ( $parsed_args['category'] ) {
$parsed_args['category'] = $parsed_args['category']->term_id;
} else {
$cache[ $key ] = array();
wp_cache_set( 'get_bookmarks', $cache, 'bookmark' );
/** This filter is documented in wp-includes/bookmark.php */
return apply_filters( 'get_bookmarks', array(), $parsed_args );
}
}
$search = '';
if ( ! empty( $parsed_args['search'] ) ) {
$like = '%' . $wpdb->esc_like( $parsed_args['search'] ) . '%';
$search = $wpdb->prepare( ' AND ( (link_url LIKE %s) OR (link_name LIKE %s) OR (link_description LIKE %s) ) ', $like, $like, $like );
}
$category_query = '';
$join = '';
if ( ! empty( $parsed_args['category'] ) ) {
$incategories = wp_parse_id_list( $parsed_args['category'] );
if ( count( $incategories ) ) {
foreach ( $incategories as $incat ) {
if ( empty( $category_query ) ) {
$category_query = ' AND ( tt.term_id = ' . $incat . ' ';
} else {
$category_query .= ' OR tt.term_id = ' . $incat . ' ';
}
}
}
}
if ( ! empty( $category_query ) ) {
$category_query .= ") AND taxonomy = 'link_category'";
$join = " INNER JOIN $wpdb->term_relationships AS tr ON ($wpdb->links.link_id = tr.object_id) INNER JOIN $wpdb->term_taxonomy as tt ON tt.term_taxonomy_id = tr.term_taxonomy_id";
}
if ( $parsed_args['show_updated'] ) {
$recently_updated_test = ', IF (DATE_ADD(link_updated, INTERVAL 120 MINUTE) >= NOW(), 1,0) as recently_updated ';
} else {
$recently_updated_test = '';
}
$get_updated = ( $parsed_args['show_updated'] ) ? ', UNIX_TIMESTAMP(link_updated) AS link_updated_f ' : '';
$orderby = strtolower( $parsed_args['orderby'] );
$length = '';
switch ( $orderby ) {
case 'length':
$length = ', CHAR_LENGTH(link_name) AS length';
break;
case 'rand':
$orderby = 'rand()';
break;
case 'link_id':
$orderby = "$wpdb->links.link_id";
break;
default:
$orderparams = array();
$keys = array( 'link_id', 'link_name', 'link_url', 'link_visible', 'link_rating', 'link_owner', 'link_updated', 'link_notes', 'link_description' );
foreach ( explode( ',', $orderby ) as $ordparam ) {
$ordparam = trim( $ordparam );
if ( in_array( 'link_' . $ordparam, $keys, true ) ) {
$orderparams[] = 'link_' . $ordparam;
} elseif ( in_array( $ordparam, $keys, true ) ) {
$orderparams[] = $ordparam;
}
}
$orderby = implode( ',', $orderparams );
}
if ( empty( $orderby ) ) {
$orderby = 'link_name';
}
$order = strtoupper( $parsed_args['order'] );
if ( '' !== $order && ! in_array( $order, array( 'ASC', 'DESC' ), true ) ) {
$order = 'ASC';
}
$visible = '';
if ( $parsed_args['hide_invisible'] ) {
$visible = "AND link_visible = 'Y'";
}
$query = "SELECT * $length $recently_updated_test $get_updated FROM $wpdb->links $join WHERE 1=1 $visible $category_query";
$query .= " $exclusions $inclusions $search";
$query .= " ORDER BY $orderby $order";
if ( -1 !== $parsed_args['limit'] ) {
$query .= ' LIMIT ' . absint( $parsed_args['limit'] );
}
$results = $wpdb->get_results( $query );
if ( 'rand()' !== $orderby ) {
$cache[ $key ] = $results;
wp_cache_set( 'get_bookmarks', $cache, 'bookmark' );
}
/** This filter is documented in wp-includes/bookmark.php */
return apply_filters( 'get_bookmarks', $results, $parsed_args );
}
/**
* Sanitizes all bookmark fields.
*
* @since 2.3.0
*
* @param stdClass|array $bookmark Bookmark row.
* @param string $context Optional. How to filter the fields. Default 'display'.
* @return stdClass|array Same type as $bookmark but with fields sanitized.
*/
function sanitize_bookmark( $bookmark, $context = 'display' ) {
$fields = array(
'link_id',
'link_url',
'link_name',
'link_image',
'link_target',
'link_category',
'link_description',
'link_visible',
'link_owner',
'link_rating',
'link_updated',
'link_rel',
'link_notes',
'link_rss',
);
if ( is_object( $bookmark ) ) {
$do_object = true;
$link_id = $bookmark->link_id;
} else {
$do_object = false;
$link_id = $bookmark['link_id'];
}
foreach ( $fields as $field ) {
if ( $do_object ) {
if ( isset( $bookmark->$field ) ) {
$bookmark->$field = sanitize_bookmark_field( $field, $bookmark->$field, $link_id, $context );
}
} else {
if ( isset( $bookmark[ $field ] ) ) {
$bookmark[ $field ] = sanitize_bookmark_field( $field, $bookmark[ $field ], $link_id, $context );
}
}
}
return $bookmark;
}
/**
* Sanitizes a bookmark field.
*
* Sanitizes the bookmark fields based on what the field name is. If the field
* has a strict value set, then it will be tested for that, else a more generic
* filtering is applied. After the more strict filter is applied, if the `$context`
* is 'raw' then the value is immediately return.
*
* Hooks exist for the more generic cases. With the 'edit' context, the {@see 'edit_$field'}
* filter will be called and passed the `$value` and `$bookmark_id` respectively.
*
* With the 'db' context, the {@see 'pre_$field'} filter is called and passed the value.
* The 'display' context is the final context and has the `$field` has the filter name
* and is passed the `$value`, `$bookmark_id`, and `$context`, respectively.
*
* @since 2.3.0
*
* @param string $field The bookmark field.
* @param mixed $value The bookmark field value.
* @param int $bookmark_id Bookmark ID.
* @param string $context How to filter the field value. Accepts 'raw', 'edit', 'db',
* 'display', 'attribute', or 'js'. Default 'display'.
* @return mixed The filtered value.
*/
function sanitize_bookmark_field( $field, $value, $bookmark_id, $context ) {
$int_fields = array( 'link_id', 'link_rating' );
if ( in_array( $field, $int_fields, true ) ) {
$value = (int) $value;
}
switch ( $field ) {
case 'link_category': // array( ints )
$value = array_map( 'absint', (array) $value );
/*
* We return here so that the categories aren't filtered.
* The 'link_category' filter is for the name of a link category, not an array of a link's link categories.
*/
return $value;
case 'link_visible': // bool stored as Y|N
$value = preg_replace( '/[^YNyn]/', '', $value );
break;
case 'link_target': // "enum"
$targets = array( '_top', '_blank' );
if ( ! in_array( $value, $targets, true ) ) {
$value = '';
}
break;
}
if ( 'raw' === $context ) {
return $value;
}
if ( 'edit' === $context ) {
/** This filter is documented in wp-includes/post.php */
$value = apply_filters( "edit_{$field}", $value, $bookmark_id );
if ( 'link_notes' === $field ) {
$value = esc_html( $value ); // textarea_escaped
} else {
$value = esc_attr( $value );
}
} elseif ( 'db' === $context ) {
/** This filter is documented in wp-includes/post.php */
$value = apply_filters( "pre_{$field}", $value );
} else {
/** This filter is documented in wp-includes/post.php */
$value = apply_filters( "{$field}", $value, $bookmark_id, $context );
if ( 'attribute' === $context ) {
$value = esc_attr( $value );
} elseif ( 'js' === $context ) {
$value = esc_js( $value );
}
}
// Restore the type for integer fields after esc_attr().
if ( in_array( $field, $int_fields, true ) ) {
$value = (int) $value;
}
return $value;
}
/**
* Deletes the bookmark cache.
*
* @since 2.7.0
*
* @param int $bookmark_id Bookmark ID.
*/
function clean_bookmark_cache( $bookmark_id ) {
wp_cache_delete( $bookmark_id, 'bookmark' );
wp_cache_delete( 'get_bookmarks', 'bookmark' );
clean_object_term_cache( $bookmark_id, 'link' );
}
Venezuela presenta novedades en Feria del Libro de La Habana – Ciudad MCY
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CIUDAD MCY.-Desde que inició la edición 32 de la Feria Internacional del Libro de La Habana 2024, Venezuela se ha hecho presente con nuevas publicaciones literarias en diversos géneros, en aras de incentivar a la lectura desde otras latitudes.
Una de ellas se presentó este miércoles bajo el título Entren que caben cien, de la autoría del periodista venezolano Ángel Méndez, bajo el sello editorial El Perro y la Rana, donde reúne entrevistas a músicos y exponentes nacionales dedicados a la expresión caribeña conocida internacionalmente como Salsa.
La actividad se desarrolló en la Sala Hugo Chávez del Complejo Militar Morro Cabaña, bajo la moderación de la periodista, locutora e hija del autor, Giogerling Méndez, quien rememoró el trabajo de su progenitor y el aporte a la música con la publicación de la revista Swing Latino en 1977.
Asimismo, en el mismo espacio, se presentó el libro Dios es un pájaro sobre la escritura (editorial Acirema), escrito por el artesano y cronista oficial del municipio Los Salias, en San Antonio de los Altos, Antonio Trujillo.
El material consiste en una antología de varios textos publicados en diversos años y conjuga elementos filosóficos y poéticos en cada uno de los párrafos, donde lo sagrado en la imagen de Dios juega un papel fundamental.
Por otra parte, en la Sala Portuondo, el comunicador y docente en filosofía, Miguel Ángel Pérez Pirela, compartió detalles de su nuevo libro Conversaciones descoloniales, bajo la compilación de textos de Ximena González Broquen.
FUENTE: CIUDAD CCS
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