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In Walker_Category, don't generate list elements for empty cat names.

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This change allows the 'list_cats' filter to be used to suppress certain
items in category lists, without creating invalid or superfluous markup.

Props samo9789.
Fixes #16792.

git-svn-id: https://develop.svn.wordpress.org/trunk@31025 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Boone Gorges 2015-01-03 02:04:17 +00:00
parent 4cead42b26
commit fd8b7faff6
2 changed files with 44 additions and 0 deletions
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5
src/wp-includes/category-template.php
View File

@ -996,6 +996,11 @@ class Walker_Category extends Walker {
$category
);
// Don't generate an element if the category name is empty.
if ( ! $cat_name ) {
return;
}
$link = '<a href="' . esc_url( get_term_link( $category ) ) . '" ';
if ( $args['use_desc_for_title'] && ! empty( $category->description ) ) {
/**

39
tests/phpunit/tests/category/wpListCategories.php Normal file
View File

@ -0,0 +1,39 @@
<?php
/**
* @group category
*/
class Tests_Category_WpListCategories extends WP_UnitTestCase {
/**
* @ticket 16792
*/
public function test_should_not_create_element_when_cat_name_is_filtered_to_empty_string() {
$c1 = $this->factory->category->create( array(
'name' => 'Test Cat 1',
) );
$c2 = $this->factory->category->create( array(
'name' => 'Test Cat 2',
) );
add_filter( 'list_cats', array( $this, 'list_cats_callback' ) );
$found = wp_list_categories( array(
'hide_empty' => false,
'echo' => false,
) );
remove_filter( 'list_cats', array( $this, 'list_cats_callback' ) );
$this->assertContains( "cat-item-$c2", $found );
$this->assertContains( 'Test Cat 2', $found );
$this->assertNotContains( "cat-item-$c1", $found );
$this->assertNotContains( 'Test Cat 1', $found );
}
public function list_cats_callback( $cat ) {
if ( 'Test Cat 1' === $cat ) {
return '';
}
return $cat;
}
}