Extra TinyMCE editor strips <p> and <br> tags?

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Hey guys, I’ve added a TinyMCE to some textareas that are displayed in a custom meta box. All of the formatting works perfectly fine, except that the editor will not save <p> or <br/> tags. It doesn’t preserve the line breaks.

The TinyMCE is setup like this:

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wp_tiny_mce(true, array('editor_selector' => $field['class'] ) );

'<textarea name="', $field['id'], '" class="', $field['class'], '" id="', $field['id'], '" cols="60" rows="8" style="width:97%">', $meta ? esc_html($meta) : $field['std'], '</textarea>';

And that all works perfectly fine. All the formatting buttons work fine, except for the <P> and <BR> tags.

I’m not sure if the editor is stripping them out before or after the post meta is saved.

Ideas?

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7 comments

  1. I recently got this working. You should search and replace metaname with your meta box name.

    The key to maintaining formatting was using wpautop(); when saving the data.

    add_action( 'add_meta_boxes', 'add_metaname_box');

add_action( 'save_post', 'metaname_save');

function add_metaname_box() {
    add_meta_box(
        'metaname_id',
        __( 'metaname text', 'metaname_textdomain'),
        'metaname_custom_box',
        'page'
    );
}

function metaname_custom_box() {
    global $post;
    wp_nonce_field( plugin_basename( __FILE__ ), 'metaname_noncename' );
    $data = get_post_meta($post->ID, 'metaname_custom_box', true);
    echo <<<EOT
    <script type="text/javascript">
jQuery(document).ready(function() {
    jQuery("#metaname_custom_box").addClass("mceEditor");
    if ( typeof( tinyMCE ) == "object" &&
         typeof( tinyMCE.execCommand ) == "function" ) {
        tinyMCE.execCommand("mceAddControl", false, "metaname_custom_box");
    }
});
</script>
    <textarea id="metaname_custom_box" name="metaname_custom_box">$data</textarea>
EOT;
}

function metaname_save($post_id) {
    global $post;

    // Verify
     if ( !wp_verify_nonce( $_POST['metaname_noncename'], plugin_basename(__FILE__) )) {
         return $post_id;
     }
     if ( 'page' == $_POST['post_type'] ) {
         if ( !current_user_can( 'edit_page', $post_id ))
             return $post_id;
     } else {
         if ( !current_user_can( 'edit_post', $post_id ))
             return $post_id;
     }

     $key = 'metaname_custom_box';
    $data = wpautop($_POST[$key]);

     // New, Update, and Delete
     if(get_post_meta($post_id, $key) == "") 
         add_post_meta($post_id, $key, $data, true);
     elseif($data != get_post_meta($post_id, $key, true))
         update_post_meta($post_id, $key, $data); 
     elseif($data == "")
         delete_post_meta($post_id, $key, get_post_meta($post_id, $key, true));        
}

  2. This seems to have changed a little in subsequent versions of WordPress. You can now disable this functionality thusly:

    add_filter('tiny_mce_before_init', function($init) {
    $init['wpautop'] = false;
    return $init;
}

  3. Here’s (a pared-down version of) what I use to custom-configure TinyMCE:

    // http://tinymce.moxiecode.com/wiki.php/Configuration
function cbnet_tinymce_config( $init ) {

    // Don't remove line breaks
    $init['remove_linebreaks'] = false; 

    // Pass $init back to WordPress
    return $init;
}
add_filter('tiny_mce_before_init', 'cbnet_tinymce_config');

    I assume this is what you tried already?

    EDIT:

    You may need to include some other config changes, such as:

    // Convert newline characters to BR tags
$init['convert_newlines_to_brs'] = true; 
// Do not remove redundant BR tags
$init['remove_redundant_brs'] = false;

    Play around with the TinyMCE configuration parameters, and find the one that you need to change.

  4. Found perhaps a simpler workaround for this:

    on the actual template, change this:

    <?php echo get_the_content());?>

    to this:

    <?php echo wpautop(get_the_content());?>

    This way wpautop() adds the tags stripped out by TinyMCE on a template by template basis.

  5. why not you use wordpress new function wp_editor to render the tinymce. That way everything will get handled. And when you show the content to the user apply the filter the_content.

    Like this:

    $meta = "content of the metabox";
echo apply_filters('the_content', $meta);

    The filter the_content will autmatically convert the link brakes to <br> and <p>.

  6. Another simple solution: Use Shortcodes!

    Place this code into functions.php and use [br] in the content editor – HTML or visual – wherever you want a br tag to appear.

    add_shortcode("br", "br_tag");

function br_tag(){
    return("<br/>");                            

}

  7. this is for who use the metaboxes for wordpress:
    Plugin Name: Meta Box
    Plugin URI: deluxeblogtips com/meta-box

    i have modify the /vendor/meta-box/inc/fields/wysiwyg.php
    in static function : 

    static function html( $html, $meta, $field )

//just after the else i have added :
$meta = html_entity_decode($meta); // 
//and solve the problem ;)

    — BUT THE BETTER SOLUTION IS —

    Put this into functions.php, it calls the filter from the metaboxes pluggin:

    function meta_wysiwyg_antes_save($meta)
{   
    $meta = html_entity_decode($meta);
    return $meta;
}
add_filter("rwmb_(ID-OF-METABOX-FIELD)_meta", "meta_wysiwyg_antes_save"); //en meta-box.php 194