As the sun rises and the forest mist clears, and the clouds return and the caves darken, these changes of light and shadow are the morning and evening in the mountains. Wildflowers bloom with their subtle fragrance, fine trees flourish with their dense shade, the wind and frost are pure and clean, and the water recedes to reveal the rocks—these are the four seasons in the mountains. Going out in the morning and returning in the evening, the scenery of the four seasons is different, and the joy is endless.至于负者歌于途,行者休于树,前者呼,后者应,伛偻提携,往来而不绝者,滁人游也。临溪而渔,溪深而鱼肥,酿泉为酒,泉香而酒洌,山肴野蔌,杂然而前陈者,太守宴也。宴酣之乐,非丝非竹,射者中,弈者胜,觥筹交错,起坐而喧哗者,众宾欢也。苍颜白发,颓然乎其间者,太守醉也。
<?php
/**
* Term Data source for Block Bindings.
*
* @since 6.9.0
* @package WordPress
* @subpackage Block Bindings
*/
/**
* Gets value for Term Data source.
*
* @since 6.9.0
* @access private
*
* @param array $source_args Array containing source arguments used to look up the override value.
* Example: array( "field" => "name" ).
* @param WP_Block $block_instance The block instance.
* @return mixed The value computed for the source.
*/
function _block_bindings_term_data_get_value( array $source_args, $block_instance ) {
if ( empty( $source_args['field'] ) ) {
return null;
}
/*
* BACKWARDS COMPATIBILITY: Hardcoded exception for navigation blocks.
* Required for WordPress 6.9+ navigation blocks. DO NOT REMOVE.
*/
$block_name = $block_instance->name ?? '';
$is_navigation_block = in_array(
$block_name,
array( 'core/navigation-link', 'core/navigation-submenu' ),
true
);
if ( $is_navigation_block ) {
// Navigation blocks: read from block attributes.
$term_id = $block_instance->attributes['id'] ?? null;
$type = $block_instance->attributes['type'] ?? '';
// Map UI shorthand to taxonomy slug when using attributes.
$taxonomy = ( 'tag' === $type ) ? 'post_tag' : $type;
} else {
// All other blocks: use context
$term_id = $block_instance->context['termId'] ?? null;
$taxonomy = $block_instance->context['taxonomy'] ?? '';
}
// If we don't have required identifiers, bail early.
if ( empty( $term_id ) || empty( $taxonomy ) ) {
return null;
}
// Get the term data.
$term = get_term( $term_id, $taxonomy );
if ( is_wp_error( $term ) || ! $term ) {
return null;
}
// Check if taxonomy exists and is publicly queryable.
$taxonomy_object = get_taxonomy( $taxonomy );
if ( ! $taxonomy_object || ! $taxonomy_object->publicly_queryable ) {
if ( ! current_user_can( 'read' ) ) {
return null;
}
}
switch ( $source_args['field'] ) {
case 'id':
return esc_html( (string) $term_id );
case 'name':
return esc_html( $term->name );
case 'link':
// Only taxonomy entities are supported by Term Data.
$term_link = get_term_link( $term );
return is_wp_error( $term_link ) ? null : esc_url( $term_link );
case 'slug':
return esc_html( $term->slug );
case 'description':
return wp_kses_post( $term->description );
case 'parent':
return esc_html( (string) $term->parent );
case 'count':
return esc_html( (string) $term->count );
default:
return null;
}
}
/**
* Registers Term Data source in the block bindings registry.
*
* @since 6.9.0
* @access private
*/
function _register_block_bindings_term_data_source() {
if ( get_block_bindings_source( 'core/term-data' ) ) {
// The source is already registered.
return;
}
register_block_bindings_source(
'core/term-data',
array(
'label' => _x( 'Term Data', 'block bindings source' ),
'get_value_callback' => '_block_bindings_term_data_get_value',
'uses_context' => array( 'termId', 'taxonomy' ),
)
);
}
add_action( 'init', '_register_block_bindings_term_data_source' );