render_block_core_post_excerpt

函数
render_block_core_post_excerpt ( $attributes, $content, $block )
参数
  • (array) $attributes Block attributes.
    Required:
  • (string) $content Block default content.
    Required:
  • (WP_Block) $block Block instance.
    Required:
返回值
  • (string) Returns the filtered post excerpt for the current post wrapped inside "p" tags.
定义位置
相关方法
register_block_core_post_excerptrender_block_core_post_termsrender_block_core_post_daterender_block_core_post_titlerender_block_core_post_content
引入
-
弃用
-

render_block_core_post_excerpt: 这个函数用来渲染WordPress中的文章摘录块。文章摘录块显示一个较长文章的简短摘要,这个函数负责生成摘录的HTML标记。

在服务器上呈现`core/post-excerpt`区块。

function render_block_core_post_excerpt( $attributes, $content, $block ) {
	if ( ! isset( $block->context['postId'] ) ) {
		return '';
	}

	$excerpt = get_the_excerpt();

	if ( empty( $excerpt ) ) {
		return '';
	}

	$more_text           = ! empty( $attributes['moreText'] ) ? '<a class="wp-block-post-excerpt__more-link" href="' . esc_url( get_the_permalink( $block->context['postId'] ) ) . '">' . wp_kses_post( $attributes['moreText'] ) . '</a>' : '';
	$filter_excerpt_more = function( $more ) use ( $more_text ) {
		return empty( $more_text ) ? $more : '';
	};
	/**
	 * Some themes might use `excerpt_more` filter to handle the
	 * `more` link displayed after a trimmed excerpt. Since the
	 * block has a `more text` attribute we have to check and
	 * override if needed the return value from this filter.
	 * So if the block's attribute is not empty override the
	 * `excerpt_more` filter and return nothing. This will
	 * result in showing only one `read more` link at a time.
	 */
	add_filter( 'excerpt_more', $filter_excerpt_more );
	$classes = '';
	if ( isset( $attributes['textAlign'] ) ) {
		$classes .= "has-text-align-{$attributes['textAlign']}";
	}
	$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classes ) );

	$content               = '<p class="wp-block-post-excerpt__excerpt">' . $excerpt;
	$show_more_on_new_line = ! isset( $attributes['showMoreOnNewLine'] ) || $attributes['showMoreOnNewLine'];
	if ( $show_more_on_new_line && ! empty( $more_text ) ) {
		$content .= '</p><p class="wp-block-post-excerpt__more-text">' . $more_text . '</p>';
	} else {
		$content .= " $more_text</p>";
	}
	remove_filter( 'excerpt_more', $filter_excerpt_more );
	return sprintf( '<div %1$s>%2$s</div>', $wrapper_attributes, $content );
}

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