How do I display a block on an edit form for particular content types?

Question

It's fairly simple to display a block on the node add form for a particular content type. Simply restrict visibility to a URL path like node/add/article and you're good to go.

I would like to know how to display a block on the edit form for a particular content type. For instance, when editing an article, the URL path is node/NID/edit.

Is there an easy way to display a block for edits of a given content type?

Answer 1

You need to add php code in the block Visibility settings in admin section of block. You can follow below code.

$node = menu_get_object();

   if (isset($node) && $node->type == 'article' && arg(2) == 'edit') {

     return TRUE;
   }

   return FALSE

Another example:

$nid = arg(1);

   $node = node_load($nid);

   if (isset($node) && $node->type == 'article' && arg(2) == 'edit') {

     return TRUE;
   }

   return FALSE

Answer 2

Here's how to display a block on an add and edit form for a particular content type via PHP code in the block configuration.

<?php
    $show_block = false;
    $content_type = 'article';
    $types = array($content_type);

    if (arg(0) == 'node' && is_numeric(arg(1))) {
        $nid = arg(1);
        $node = node_load($nid);
        $type = $node->type;
        $show_block |= in_array($type, $types);
    } else if (arg(0) == 'node' && arg(2) == $content_type) {
        $show_block = true;   
    }
    return $show_block;
?>