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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 1637 | $parsed_blocks = parse_blocks( $response->data['content']['raw'] ); |
| 1638 | $content = block_core_navigation_insert_hooked_blocks( $parsed_blocks, $post ); |
| 1639 | |
| 1640 | // Remove mock Navigation block wrapper. |
| 1641 | $content = block_core_navigation_remove_serialized_parent_block( $content ); |
| 1642 | |
| 1643 | $response->data['content']['raw'] = $content; |
| 1644 | |
| 1645 | /** This filter is documented in wp-includes/post-template.php */ |
| 1646 | $response->data['content']['rendered'] = apply_filters( 'the_content', $content ); |
| 1647 | |
| 1648 | return $response; |
| 1649 | } |
| 1650 | |
| 1651 | /* |
| 1652 | * Before adding our filter, we verify if it's already added in Core. |
| 1653 | * However, during the build process, Gutenberg automatically prefixes our functions with "gutenberg_". |
| 1654 | * Therefore, we concatenate the Core's function name to circumvent this prefix for our check. |
| 1655 | */ |