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Posts list table: Add a filter to disable the categories dropdown.

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This allows one to short-circuit its output before any queries are run, similar to how it was done for the months dropdown in [31438].

Props davidmosterd for initial patch.
Fixes #36152.

git-svn-id: https://develop.svn.wordpress.org/trunk@37856 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Pascal Birchler 2016-06-23 15:36:33 +00:00
parent d0555f9544
commit 70693b520f
1 changed files with 41 additions and 16 deletions
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57
src/wp-admin/includes/class-wp-posts-list-table.php
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@ -412,31 +412,56 @@ class WP_Posts_List_Table extends WP_List_Table {
}
/**
* @global int $cat
* Displays a categories drop-down for filtering on the Posts list table.
*
* @since 4.6.0
* @access protected
*
* @global int $cat Currently selected category.
*
* @param string $post_type The Post Type.
*/
protected function categories_dropdown( $post_type ) {
global $cat;
/**
* Filters whether to remove the 'Categories' drop-down from the post list table.
*
* @since 4.6.0
*
* @param bool $disable Whether to disable the categories drop-down. Default false.
* @param string $post_type The post type.
*/
if ( false !== apply_filters( 'disable_categories_dropdown', false, $post_type ) ) {
return;
}
if ( is_object_in_taxonomy( $post_type, 'category' ) ) {
$dropdown_options = array(
'show_option_all' => get_taxonomy( 'category' )->labels->all_items,
'hide_empty' => 0,
'hierarchical' => 1,
'show_count' => 0,
'orderby' => 'name',
'selected' => $cat
);
echo '<label class="screen-reader-text" for="cat">' . __( 'Filter by category' ) . '</label>';
wp_dropdown_categories( $dropdown_options );
}
}
/**
* @param string $which
*/
protected function extra_tablenav( $which ) {
global $cat;
?>
<div class="alignleft actions">
<?php
if ( 'top' === $which && !is_singular() ) {
$this->months_dropdown( $this->screen->post_type );
if ( is_object_in_taxonomy( $this->screen->post_type, 'category' ) ) {
$dropdown_options = array(
'show_option_all' => get_taxonomy( 'category' )->labels->all_items,
'hide_empty' => 0,
'hierarchical' => 1,
'show_count' => 0,
'orderby' => 'name',
'selected' => $cat
);
echo '<label class="screen-reader-text" for="cat">' . __( 'Filter by category' ) . '</label>';
wp_dropdown_categories( $dropdown_options );
}
$this->categories_dropdown( $this->screen->post_type );
/**
* Fires before the Filter button on the Posts and Pages list tables.