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<?php
/**
* Server-side rendering of the `core/post-terms` block.
*
* @package WordPress
*/
/**
* Renders the `core/post-terms` block on the server.
*
* @since 5.8.0
*
* @param array $attributes Block attributes.
* @param string $content Block default content.
* @param WP_Block $block Block instance.
* @return string Returns the filtered post terms for the current post wrapped inside "a" tags.
*/
function render_block_core_post_terms( $attributes, $content, $block ) {
if ( ! isset( $block->context['postId'] ) || ! isset( $attributes['term'] ) ) {
return '';
}
if ( ! is_taxonomy_viewable( $attributes['term'] ) ) {
return '';
}
$post_terms = get_the_terms( $block->context['postId'], $attributes['term'] );
if ( is_wp_error( $post_terms ) || empty( $post_terms ) ) {
return '';
}
$classes = array( 'taxonomy-' . $attributes['term'] );
if ( isset( $attributes['textAlign'] ) ) {
$classes[] = 'has-text-align-' . $attributes['textAlign'];
}
if ( isset( $attributes['style']['elements']['link']['color']['text'] ) ) {
$classes[] = 'has-link-color';
}
$separator = empty( $attributes['separator'] ) ? ' ' : $attributes['separator'];
$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classes ) ) );
$prefix = "<div $wrapper_attributes>";
if ( isset( $attributes['prefix'] ) && $attributes['prefix'] ) {
$prefix .= '<span class="wp-block-post-terms__prefix">' . $attributes['prefix'] . '</span>';
}
$suffix = '</div>';
if ( isset( $attributes['suffix'] ) && $attributes['suffix'] ) {
$suffix = '<span class="wp-block-post-terms__suffix">' . $attributes['suffix'] . '</span>' . $suffix;
}
return get_the_term_list(
$block->context['postId'],
$attributes['term'],
wp_kses_post( $prefix ),
'<span class="wp-block-post-terms__separator">' . esc_html( $separator ) . '</span>',
wp_kses_post( $suffix )
);
}
/**
* Returns the available variations for the `core/post-terms` block.
*
* @since 6.5.0
*
* @return array The available variations for the block.
*/
function block_core_post_terms_build_variations() {
$taxonomies = get_taxonomies(
array(
'publicly_queryable' => true,
'show_in_rest' => true,
),
'objects'
);
// Split the available taxonomies to `built_in` and custom ones,
// in order to prioritize the `built_in` taxonomies at the
// search results.
$built_ins = array();
$custom_variations = array();
// Create and register the eligible taxonomies variations.
foreach ( $taxonomies as $taxonomy ) {
$variation = array(
'name' => $taxonomy->name,
'title' => $taxonomy->label,
'description' => sprintf(
/* translators: %s: taxonomy's label */
__( 'Display a list of assigned terms from the taxonomy: %s' ),
$taxonomy->label
),
'attributes' => array(
'term' => $taxonomy->name,
),
'isActive' => array( 'term' ),
'scope' => array( 'inserter', 'transform' ),
);
// Set the category variation as the default one.
if ( 'category' === $taxonomy->name ) {
$variation['isDefault'] = true;
}
if ( $taxonomy->_builtin ) {
$built_ins[] = $variation;
} else {
$custom_variations[] = $variation;
}
}
return array_merge( $built_ins, $custom_variations );
}
/**
* Registers the `core/post-terms` block on the server.
*
* @since 5.8.0
*/
function register_block_core_post_terms() {
register_block_type_from_metadata(
__DIR__ . '/post-terms',
array(
'render_callback' => 'render_block_core_post_terms',
'variation_callback' => 'block_core_post_terms_build_variations',
)
);
}
add_action( 'init', 'register_block_core_post_terms' );