Call to undefined function get_hidden_columns()

[arena]

on 3.1 alpha, get_hidden_columns() do not exists anymore ! many plugins will fail when upgrading from 3.0 to 3.1 (which should be a minor update ...)

3.1 is not a minor release.

Assigning to scribu. He'll be rescuing the various functions which were cast away.

arena: please give examples of such a plugins, so I can see how they're using the function.

Replying to scribu:

arena: please give examples of such a plugins, so I can see how they're using the function.

MailPress

(In [15514]) Deprecate get_hidden_columns(). Fixes #14651

These functions still need to work. We need to bridge all functions removed with the new API without losing any functionality.

(In [15517]) Make deprecated functions work. See #14651

@nacin, any doc on that new api (besides php code) ?

Not yet, but you can take a look in these files:

wp-admin/includes/list-table.php
wp-admin/includes/default-list-tables.php

and this ticket: #14579

last test from svn

bug : Call to undefined function get_hidden_columns() has disappeared

but

screen options still not showing up ! (it did in 3.0)

(In [15519]) replace $table with $wp_list_table. See #14651

screen options still not showing up ! (it did in 3.0)

That's because it's doing it wrong. If it was calling register_column_headers(), like it was supposed to, it would work (with r15519).

i'm personnaly using the following filter :

'manage_' . screen . '_columns' ...

Yes, that filter still exists, but it's meant for modifying already registered columns, like those on the Posts screen.

Replying to scribu:

Yes, that filter still exists, but it's meant for modifying already registered columns, like those on the Posts screen.

??? but it worked !!!

some code consistency with other wp classes

all WP_ classes seems to have their constructor function called

construct()

and are adding (for php4 support) another function with the same name of the class calling $this->construct()

(sample WP_Widget in wp-includes/widgets.php)

Replying to arena:

some code consistency with other wp classes

all WP_ classes seems to have their constructor function called

construct()

and are adding (for php4 support) another function with the same name of the class calling $this->construct()

(sample WP_Widget in wp-includes/widgets.php)

construct func starts with 2 underscores

all WP_ classes seems to have their constructor function called __construct()

Widgets don't. When we finally drop PHP4, it will be worth renaming them, as you suggest.

Replying to arena:

Replying to scribu:

Yes, that filter still exists, but it's meant for modifying already registered columns, like those on the Posts screen.

??? but it worked !!!

All is good then. :)

Replying to scribu:

all WP_ classes seems to have their constructor function called __construct()

Widgets don't. When we finally drop PHP4, it will be worth renaming them, as you suggest.

widget does see lines 76 and 93 (yes tricky because not in the first lines of the class)

Closing as fixed. If you notice any other back-compat issues, please open new tickets.

for info (In [15653]) #14776 undeprecates get_hidden_columns()