[wp-trac] [WordPress Trac] #13958: Deactivating custom post types/taxonomies breaks nav menus

[WordPress Trac]

#13958: Deactivating custom post types/taxonomies breaks nav menus
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 Reporter:  WraithKenny   |       Owner:             
     Type:  defect (bug)  |      Status:  new        
 Priority:  normal        |   Milestone:  3.0.1      
Component:  Menus         |     Version:  3.0        
 Severity:  normal        |    Keywords:  2nd-opinion
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Comment(by filosofo):

 `handle-invalid-object-types.13958.diff` is my suggestion on how to handle
 this situation, both for missing post types and missing taxonomies:

  * If the menu item is associated with an invalid post or taxonomy type,
 the menu item:
    * Gets an error message for its title
    * Gets an empty URL
    * Receives the `post_status` property of "draft."
  * Front-end Walker displays only those menu items that have "publish" as
 their `post_status` property.
  * Edit menu Walker does not care whether menu items have "publish" as
 their `post_status` property.
  * Upon saving a menu item that is associated with an invalid post or
 taxonomy type, `wp_update_nav_menu_item` returns an error object,
 effectively deleting the menu item on save.
  * Note that the added error message 'Invalid post type.' is not a new
 string.

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Ticket URL: <http://core.trac.wordpress.org/ticket/13958#comment:3>
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