[wp-trac] [WordPress Trac] #47056: Add 'wp_nav_menu_item_custom_fields' hook in Walker_Nav_Menu_Edit::start_el()

[WordPress Trac]

#47056: Add 'wp_nav_menu_item_custom_fields' hook in
Walker_Nav_Menu_Edit::start_el()
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 Reporter:  MikeSchinkel            |       Owner:  audrasjb
     Type:  enhancement             |      Status:  closed
 Priority:  normal                  |   Milestone:  5.4
Component:  Menus                   |     Version:  5.2
 Severity:  normal                  |  Resolution:  fixed
 Keywords:  has-patch has-dev-note  |     Focuses:
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Comment (by helgatheviking):

 Hey y'all.... the dev notes on
 `wp_nav_menu_item_custom_fields_customize_template` could use some more
 detail as currently there's no docu on how to make that hook
 ''functional''.

 I've figured out how to display the extra fields, but without at least a
 point in the right direction it's unclear how to get the data for the menu
 item to the output. The other fields are using `{{ data.something }}` but
 I can't find out to insert properties to the `data` object as there's no
 filter for the `WP_Customize_Nav_Menu_Item_Control::json()` function (or
 it's parent).

 It's also unclear how to send the data back to the DB... I expect
 something in the `wp.customizer` scripts, but can't yet find where.

 I'm willing to write a tutorial on this, but going to need a point in the
 right direction.

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Ticket URL: <https://core.trac.wordpress.org/ticket/47056#comment:28>
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