Preparing Gutenberg blocks for an email
If you need to send a post or page out via email, you will need to parse blocks and shortcodes first.
I use MailChimp and the API doesn’t like audio and video tags. This function takes the post content and parses it creating buttons for playing audio and video.
In the switch($block[‘blockName’]) you can add other block types you may wish to process….
function prepare_post_for_email($post)
{
$blocks=parse_blocks($post->post_content);
/*********************************************
* pasrse_blocks creates an array of blocks.
* custom editor content is just one block
*********************************************/
$content='';
if(!empty($blocks))
{
foreach($blocks AS $block)
{
switch($block['blockName'])
{
case 'core/embed':
$link=$block['attrs']['url'];
if(defined('CA_DEBUG'))church_admin_debug("Link $link ");
switch($block['attrs']['type'])
{
case 'audio':
case 'rich':
$label='Play audio';
break;
case 'video':
$label='Play video';
break;
}
// Create a button in a table with the link and play audio or video
$content.='<table border="0" cellspacing="0" cellpadding="0"><tr><td align="center" style="border-radius: 3px;" bgcolor="#e9703e"><a href="'.esc_url($link).'" target="_blank" style="font-size: 16px; font-family: Helvetica, Arial, sans-serif; color: #ffffff; text-decoration: none; text-decoration: none;border-radius: 3px; padding: 12px 18px; border: 1px solid #e9703e; display: inline-block;">'.$label.'</a></td></tr></table>';
break;
default:
//any other block type, just grab the HTML
$content.=implode("\r\n",$block['innerContent']);
break;
}
}
}else{ $content .= do_shortcode($post->post_content);}
return $content;
}