apply_filters( ‘render_block_data’, array $parsed_block, array $source_block, WP_Block|null $parent_block )

User Contributed Notes

1. Skip to note 3 content

   Khokan Sardar 2 years ago

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   Filter post content block and add custom classes for every post content block wrapper dynamically before render on template.

   /**
    * Filters the parsed block being rendered in render_block(), before it's processed.
    *
    * @param array  $parsed_block The block being rendered.
    * @return array $parsed_block Modified block.
    */
   function wpdocs_modify_render_block_data( $parsed_block ) {
   
       // Do check first its Post Content block or not.
       if ( ! empty( $parsed_block['blockName'] ) && 'core/post-content' === $parsed_block['blockName'] ) {
           $block_attributes = $parsed_block['attrs'];
   
           // Set custom class for post content block.
           $post_content_classe           = 'wpdocs-content-wrap';
           $block_attributes['className'] = $post_content_classe;
           
           $parsed_block['attrs'] = $block_attributes;
       }
   
       return $parsed_block;
   }
   add_filter( 'render_block_data', 'wpdocs_modify_render_block_data' );
2. Skip to note 4 content

   DragBlock.Com 2 years ago

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   Here is the structure of the $parsed_block

   $parsed_block = array(
       'blockName' => 'dragblock/link',
       'attrs' => array(),
   
       // child
       'innerBlocks' => array(
           array(
               'blockName' => 'dragblock/text',
               'attrs' => array(),
               'innerBlocks' => array(),
               'innerHTML' => '<span class="wp-block-dragblock-text"></span>',
               'innerContent' => array(
                   '<span class="wp-block-dragblock-text"></span>'
               )
           )
       ),
   
       // your current block output html without child blocks
       'innerHTML' => '<a class="wp-block-dragblock-link"></a>', 
   
       // your current block output html items without child blocks
       'innerContent' => array(
           '<a class="wp-block-dragblock-link">',
           null,
           '</a>'
       )
   );