Last active
July 7, 2024 00:28
-
-
Save rku4er/2d9904d022d4ebd4fdecc7042589f18e to your computer and use it in GitHub Desktop.
Custom utils for retrieving blocks from Wordpress posts content, archives, search, 404, etc.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <?php | |
| /** | |
| * Recursively get blocks and their inner blocks. | |
| * | |
| * @param array $blocks List of blocks. | |
| * @return array Flattened list of all blocks. | |
| */ | |
| function get_blocks_recursive( array $blocks ) { | |
| $result = []; | |
| $slugs = []; | |
| foreach ( $blocks as $block ) { | |
| $result[] = $block; | |
| if( 'core/template-part' === $block['blockName'] ) { | |
| $slugs[] = $block['attrs']['slug']; | |
| } elseif ( ! empty( $block['innerBlocks'] ) ) { | |
| $result = array_merge( $result, get_blocks_recursive( $block['innerBlocks'] ) ); | |
| } | |
| } | |
| if( ! empty( $slugs ) ) { | |
| $templates_parts = get_block_templates( [ 'slug__in' => $slugs ], 'wp_template_part' ); | |
| foreach ( $templates_parts as $templates_part ) { | |
| if ( ! empty( $templates_part->content ) ) { | |
| $result = array_merge( $result, get_blocks_recursive( parse_blocks( $templates_part->content ) ) ); | |
| } | |
| } | |
| } | |
| return $result; | |
| } | |
| /** | |
| * Get all blocks for a given post or current post if no ID is provided. | |
| * | |
| * @param int|null $post_id Post ID. | |
| * @return array List of blocks. | |
| */ | |
| function get_blocks( ?int $post_id = null ) { | |
| global $post, $_wp_current_template_content; | |
| $post_content = ''; | |
| $blocks = []; | |
| if ( is_singular() ) { | |
| if( $post_id && has_blocks( $post_id ) ) { | |
| $post_content = get_post_field('post_content', $post_id ); | |
| } elseif( ! empty( $post->ID ) ) { | |
| $post_content = get_post_field('post_content', $post->ID ); | |
| } | |
| $blocks = get_blocks_recursive( parse_blocks( $post_content ) ); | |
| } | |
| if( current_theme_supports( 'block-templates' ) ) { | |
| $blocks = array_merge( $blocks, get_blocks_recursive( parse_blocks( $_wp_current_template_content ) ) ); | |
| } | |
| return $blocks; | |
| } | |
| /** | |
| * Example use | |
| * | |
| */ | |
| add_action( | |
| 'wp_enqueue_scripts', | |
| function() { | |
| global $post; | |
| $handler = 'custom-styles'; | |
| $blocks = array_unique( wp_list_pluck( get_blocks( $post->ID ), 'blockName') ); | |
| if( ! empty( $blocks ) && in_array( 'core/myblock', $blocks ) ) { | |
| // Enqueue styles for frontend | |
| if( ! wp_style_is( $handler, 'enqueued') ) { | |
| wp_enqueue_style( $handler ); | |
| } | |
| } | |
| } | |
| ); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment