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latest-posts.php (7124B)


      1 <?php
      2 /**
      3  * Server-side rendering of the `core/latest-posts` block.
      4  *
      5  * @package WordPress
      6  */
      7 
      8 /**
      9  * The excerpt length set by the Latest Posts core block
     10  * set at render time and used by the block itself.
     11  *
     12  * @var int
     13  */
     14 global $block_core_latest_posts_excerpt_length;
     15 $block_core_latest_posts_excerpt_length = 0;
     16 
     17 /**
     18  * Callback for the excerpt_length filter used by
     19  * the Latest Posts block at render time.
     20  *
     21  * @return int Returns the global $block_core_latest_posts_excerpt_length variable
     22  *             to allow the excerpt_length filter respect the Latest Block setting.
     23  */
     24 function block_core_latest_posts_get_excerpt_length() {
     25 	global $block_core_latest_posts_excerpt_length;
     26 	return $block_core_latest_posts_excerpt_length;
     27 }
     28 
     29 /**
     30  * Renders the `core/latest-posts` block on server.
     31  *
     32  * @param array $attributes The block attributes.
     33  *
     34  * @return string Returns the post content with latest posts added.
     35  */
     36 function render_block_core_latest_posts( $attributes ) {
     37 	global $post, $block_core_latest_posts_excerpt_length;
     38 
     39 	$args = array(
     40 		'posts_per_page'   => $attributes['postsToShow'],
     41 		'post_status'      => 'publish',
     42 		'order'            => $attributes['order'],
     43 		'orderby'          => $attributes['orderBy'],
     44 		'suppress_filters' => false,
     45 	);
     46 
     47 	$block_core_latest_posts_excerpt_length = $attributes['excerptLength'];
     48 	add_filter( 'excerpt_length', 'block_core_latest_posts_get_excerpt_length', 20 );
     49 
     50 	if ( isset( $attributes['categories'] ) ) {
     51 		$args['category__in'] = array_column( $attributes['categories'], 'id' );
     52 	}
     53 	if ( isset( $attributes['selectedAuthor'] ) ) {
     54 		$args['author'] = $attributes['selectedAuthor'];
     55 	}
     56 
     57 	$recent_posts = get_posts( $args );
     58 
     59 	$list_items_markup = '';
     60 
     61 	foreach ( $recent_posts as $post ) {
     62 		$post_link = esc_url( get_permalink( $post ) );
     63 
     64 		$list_items_markup .= '<li>';
     65 
     66 		if ( $attributes['displayFeaturedImage'] && has_post_thumbnail( $post ) ) {
     67 			$image_style = '';
     68 			if ( isset( $attributes['featuredImageSizeWidth'] ) ) {
     69 				$image_style .= sprintf( 'max-width:%spx;', $attributes['featuredImageSizeWidth'] );
     70 			}
     71 			if ( isset( $attributes['featuredImageSizeHeight'] ) ) {
     72 				$image_style .= sprintf( 'max-height:%spx;', $attributes['featuredImageSizeHeight'] );
     73 			}
     74 
     75 			$image_classes = 'wp-block-latest-posts__featured-image';
     76 			if ( isset( $attributes['featuredImageAlign'] ) ) {
     77 				$image_classes .= ' align' . $attributes['featuredImageAlign'];
     78 			}
     79 
     80 			$featured_image = get_the_post_thumbnail(
     81 				$post,
     82 				$attributes['featuredImageSizeSlug'],
     83 				array(
     84 					'style' => $image_style,
     85 				)
     86 			);
     87 			if ( $attributes['addLinkToFeaturedImage'] ) {
     88 				$featured_image = sprintf(
     89 					'<a href="%1$s">%2$s</a>',
     90 					$post_link,
     91 					$featured_image
     92 				);
     93 			}
     94 			$list_items_markup .= sprintf(
     95 				'<div class="%1$s">%2$s</div>',
     96 				$image_classes,
     97 				$featured_image
     98 			);
     99 		}
    100 
    101 		$title = get_the_title( $post );
    102 		if ( ! $title ) {
    103 			$title = __( '(no title)' );
    104 		}
    105 		$list_items_markup .= sprintf(
    106 			'<a href="%1$s">%2$s</a>',
    107 			$post_link,
    108 			$title
    109 		);
    110 
    111 		if ( isset( $attributes['displayAuthor'] ) && $attributes['displayAuthor'] ) {
    112 			$author_display_name = get_the_author_meta( 'display_name', $post->post_author );
    113 
    114 			/* translators: byline. %s: current author. */
    115 			$byline = sprintf( __( 'by %s' ), $author_display_name );
    116 
    117 			if ( ! empty( $author_display_name ) ) {
    118 				$list_items_markup .= sprintf(
    119 					'<div class="wp-block-latest-posts__post-author">%1$s</div>',
    120 					esc_html( $byline )
    121 				);
    122 			}
    123 		}
    124 
    125 		if ( isset( $attributes['displayPostDate'] ) && $attributes['displayPostDate'] ) {
    126 			$list_items_markup .= sprintf(
    127 				'<time datetime="%1$s" class="wp-block-latest-posts__post-date">%2$s</time>',
    128 				esc_attr( get_the_date( 'c', $post ) ),
    129 				esc_html( get_the_date( '', $post ) )
    130 			);
    131 		}
    132 
    133 		if ( isset( $attributes['displayPostContent'] ) && $attributes['displayPostContent']
    134 			&& isset( $attributes['displayPostContentRadio'] ) && 'excerpt' === $attributes['displayPostContentRadio'] ) {
    135 
    136 			$trimmed_excerpt = get_the_excerpt( $post );
    137 
    138 			if ( post_password_required( $post ) ) {
    139 				$trimmed_excerpt = __( 'This content is password protected.' );
    140 			}
    141 
    142 			$list_items_markup .= sprintf(
    143 				'<div class="wp-block-latest-posts__post-excerpt">%1$s</div>',
    144 				$trimmed_excerpt
    145 			);
    146 		}
    147 
    148 		if ( isset( $attributes['displayPostContent'] ) && $attributes['displayPostContent']
    149 			&& isset( $attributes['displayPostContentRadio'] ) && 'full_post' === $attributes['displayPostContentRadio'] ) {
    150 
    151 			$post_content = wp_kses_post( html_entity_decode( $post->post_content, ENT_QUOTES, get_option( 'blog_charset' ) ) );
    152 
    153 			if ( post_password_required( $post ) ) {
    154 				$post_content = __( 'This content is password protected.' );
    155 			}
    156 
    157 			$list_items_markup .= sprintf(
    158 				'<div class="wp-block-latest-posts__post-full-content">%1$s</div>',
    159 				$post_content
    160 			);
    161 		}
    162 
    163 		$list_items_markup .= "</li>\n";
    164 	}
    165 
    166 	remove_filter( 'excerpt_length', 'block_core_latest_posts_get_excerpt_length', 20 );
    167 
    168 	$class = 'wp-block-latest-posts__list';
    169 
    170 	if ( isset( $attributes['postLayout'] ) && 'grid' === $attributes['postLayout'] ) {
    171 		$class .= ' is-grid';
    172 	}
    173 
    174 	if ( isset( $attributes['columns'] ) && 'grid' === $attributes['postLayout'] ) {
    175 		$class .= ' columns-' . $attributes['columns'];
    176 	}
    177 
    178 	if ( isset( $attributes['displayPostDate'] ) && $attributes['displayPostDate'] ) {
    179 		$class .= ' has-dates';
    180 	}
    181 
    182 	if ( isset( $attributes['displayAuthor'] ) && $attributes['displayAuthor'] ) {
    183 		$class .= ' has-author';
    184 	}
    185 
    186 	$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $class ) );
    187 
    188 	return sprintf(
    189 		'<ul %1$s>%2$s</ul>',
    190 		$wrapper_attributes,
    191 		$list_items_markup
    192 	);
    193 }
    194 
    195 /**
    196  * Registers the `core/latest-posts` block on server.
    197  */
    198 function register_block_core_latest_posts() {
    199 	register_block_type_from_metadata(
    200 		__DIR__ . '/latest-posts',
    201 		array(
    202 			'render_callback' => 'render_block_core_latest_posts',
    203 		)
    204 	);
    205 }
    206 add_action( 'init', 'register_block_core_latest_posts' );
    207 
    208 /**
    209  * Handles outdated versions of the `core/latest-posts` block by converting
    210  * attribute `categories` from a numeric string to an array with key `id`.
    211  *
    212  * This is done to accommodate the changes introduced in #20781 that sought to
    213  * add support for multiple categories to the block. However, given that this
    214  * block is dynamic, the usual provisions for block migration are insufficient,
    215  * as they only act when a block is loaded in the editor.
    216  *
    217  * TODO: Remove when and if the bottom client-side deprecation for this block
    218  * is removed.
    219  *
    220  * @param array $block A single parsed block object.
    221  *
    222  * @return array The migrated block object.
    223  */
    224 function block_core_latest_posts_migrate_categories( $block ) {
    225 	if (
    226 		'core/latest-posts' === $block['blockName'] &&
    227 		! empty( $block['attrs']['categories'] ) &&
    228 		is_string( $block['attrs']['categories'] )
    229 	) {
    230 		$block['attrs']['categories'] = array(
    231 			array( 'id' => absint( $block['attrs']['categories'] ) ),
    232 		);
    233 	}
    234 
    235 	return $block;
    236 }
    237 add_filter( 'render_block_data', 'block_core_latest_posts_migrate_categories' );