Use Markdown in Custom Fields

[gregoirenoyelle]

Hi
Thanks for the Jetpack update 2.8 Beta 1
I use a lot Markdown. It works well in Editor but not yet in Custom fields like Excerpt or Custom Meta made with Advanced Custom Fields.
Do you plane to support this?
Thanks!
Grégoire

[georgestephanis]

cc: @mattwiebe

[gregoirenoyelle]

Thanks Georges.
After few tests, it do not works either in custom post type traditionnal editor.
Grégoire

[georgestephanis]

This could be a wontfix issue -- we can't apply it to every field when it's saved, so custom fields may need some way added to attach the markdown parser. I leave that call to Wiebe, though, he knows how it's architected best.

[mattwiebe]

Supporting Markdown in plugins like ACF will be left to those plugins if they wish to do so. The function you'd need would be WPCom_Markdown::get_instance()->transform( $content ). See the function for args, noting especially unslash.

As for custom post types, support can be added for them via add_post_type_support( 'your-post-type', 'wpcom-markdown' ).

[georgestephanis]

Also, you'd need to jetpack_require_lib( 'markdown' ); first -- just to make sure the class is loaded up.

[gregoirenoyelle]

Thanks for your comments.
I will send this issue to Elliot (ACF).
I put in my functions.php

add_post_type_support( 'your-post-type', 'wpcom-markdown' )

But it change nothing. I miss the second one. How can I add it?
Perharps you can add a special parameter we use in CPT args > supports
Cheers

[georgestephanis]

You do need to switch out your-post-type with the actual post type slug you had chosen.

[gregoirenoyelle]

Yes I do.

[jeherve]

I put in my functions.php
add_post_type_support( 'your-post-type', 'wpcom-markdown' )
But it change nothing.

I was able to get Markdown to work on a Custom Post Type by adding the following to a functionality plugin:

add_action('init', 'my_custom_init');
function my_custom_init() {
    add_post_type_support( 'product', 'wpcom-markdown' );
}

Ref

Perharps you can add a special parameter we use in CPT args > supports

That's already possible. If you can change the code generating the custom post type, you can add Markdown support like so:

// Register Custom Post Type
function custom_post_type() {

    $labels = array(
        'name'                => _x( 'Products', 'Post Type General Name', 'text_domain' ),
    );
    $args = array(
        'label'               => __( 'product', 'text_domain' ),
        'supports'            => array( 'title', 'editor', 'publicize', 'wpcom-markdown' ),
    );
    register_post_type( 'product', $args );

}
// Hook into the 'init' action
add_action( 'init', 'custom_post_type', 0 );

I tested it on a test site of mine and it works.

[gregoirenoyelle]

It works perfect. Thanks a lot Jeremy for all your support!
I will writte a tutorial about that and here is the
message from ACF. Good new!
Cheers
Grégoire

[jtremback]

This worked for me, putting markdown in a custom post type.

[vtmx]

Jetpack Markdown for me worked with the plugin Typewriter.

[vtmx]

Now I added the plugin: (Markdown Extra) [https://littoral.michelf.ca/code/php-markdown/php-markdown-extra-1.2.8.zip]

And add-on: (ACF Wordpress Wysiwyg Field)[https://github.com/elliotcondon/acf-wordpress-wysiwyg-field]

In functions.php I added:

// style editor
remove_filter( 'the_content', 'wpautop' );
remove_filter( 'the_content', 'wptexturize' );
remove_filter( 'the_excerpt', 'wpautop' );
remove_filter( 'the_excerpt', 'wptexturize' );
remove_filter( 'acf_the_content', 'wpautop' );
remove_filter( 'acf_the_content', 'wptexturize' );

// markdown support
add_filter( 'the_content', 'Markdown' );
add_filter( 'the_excerpt', 'Markdown' );
add_filter( 'acf_the_content', 'Markdown' );