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Bust term query cache when modifying term meta.

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The 'last_changed' incrementor is used to invalidate the `get_terms()` query
cache. Since `get_terms()` queries may reference 'meta_query', changing term
metadata could change the results of the queries. So we invalidate the cache
on add, delete, and update.

See #10142.

git-svn-id: https://develop.svn.wordpress.org/trunk@34538 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Boone Gorges 2015-09-25 13:46:36 +00:00
parent 3714a915a2
commit a160be35b1
2 changed files with 131 additions and 3 deletions
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27
src/wp-includes/taxonomy-functions.php
View File

@ -1488,7 +1488,14 @@ function get_terms( $taxonomies, $args = '' ) {
* @return int|bool Meta ID on success, false on failure.
*/
function add_term_meta( $term_id, $meta_key, $meta_value, $unique = false ) {
return add_metadata( 'term', $term_id, $meta_key, $meta_value, $unique );
$added = add_metadata( 'term', $term_id, $meta_key, $meta_value, $unique );
// Bust term query cache.
if ( $added ) {
wp_cache_set( 'last_changed', microtime(), 'terms' );
}
return $added;
}
/**
@ -1502,7 +1509,14 @@ function add_term_meta( $term_id, $meta_key, $meta_value, $unique = false ) {
* @return bool True on success, false on failure.
*/
function delete_term_meta( $term_id, $meta_key, $meta_value = '' ) {
return delete_metadata( 'term', $term_id, $meta_key, $meta_value );
$deleted = delete_metadata( 'term', $term_id, $meta_key, $meta_value );
// Bust term query cache.
if ( $deleted ) {
wp_cache_set( 'last_changed', microtime(), 'terms' );
}
return $deleted;
}
/**
@ -1536,7 +1550,14 @@ function get_term_meta( $term_id, $key = '', $single = false ) {
* @return int|bool Meta ID if the key didn't previously exist. True on successful update. False on failure.
*/
function update_term_meta( $term_id, $meta_key, $meta_value, $prev_value = '' ) {
return update_metadata( 'term', $term_id, $meta_key, $meta_value, $prev_value );
$updated = update_metadata( 'term', $term_id, $meta_key, $meta_value, $prev_value );
// Bust term query cache.
if ( $updated ) {
wp_cache_set( 'last_changed', microtime(), 'terms' );
}
return $updated;
}
/**

107
tests/phpunit/tests/term/meta.php
View File

@ -144,4 +144,111 @@ class Tests_Term_Meta extends WP_UnitTestCase {
}
}
}
public function test_adding_term_meta_should_bust_get_terms_cache() {
$terms = $this->factory->term->create_many( 2, array( 'taxonomy' => 'wptests_tax' ) );
add_term_meta( $terms[0], 'foo', 'bar' );
// Prime cache.
$found = get_terms( 'wptests_tax', array(
'hide_empty' => false,
'fields' => 'ids',
'meta_query' => array(
array(
'key' => 'foo',
'value' => 'bar',
),
),
) );
$this->assertEqualSets( array( $terms[0] ), $found );
add_term_meta( $terms[1], 'foo', 'bar' );
$found = get_terms( 'wptests_tax', array(
'hide_empty' => false,
'fields' => 'ids',
'meta_query' => array(
array(
'key' => 'foo',
'value' => 'bar',
),
),
) );
$this->assertEqualSets( array( $terms[0], $terms[1] ), $found );
}
public function test_updating_term_meta_should_bust_get_terms_cache() {
$terms = $this->factory->term->create_many( 2, array( 'taxonomy' => 'wptests_tax' ) );
add_term_meta( $terms[0], 'foo', 'bar' );
add_term_meta( $terms[1], 'foo', 'baz' );
// Prime cache.
$found = get_terms( 'wptests_tax', array(
'hide_empty' => false,
'fields' => 'ids',
'meta_query' => array(
array(
'key' => 'foo',
'value' => 'bar',
),
),
) );
$this->assertEqualSets( array( $terms[0] ), $found );
update_term_meta( $terms[1], 'foo', 'bar' );
$found = get_terms( 'wptests_tax', array(
'hide_empty' => false,
'fields' => 'ids',
'meta_query' => array(
array(
'key' => 'foo',
'value' => 'bar',
),
),
) );
$this->assertEqualSets( array( $terms[0], $terms[1] ), $found );
}
public function test_deleting_term_meta_should_bust_get_terms_cache() {
$terms = $this->factory->term->create_many( 2, array( 'taxonomy' => 'wptests_tax' ) );
add_term_meta( $terms[0], 'foo', 'bar' );
add_term_meta( $terms[1], 'foo', 'bar' );
// Prime cache.
$found = get_terms( 'wptests_tax', array(
'hide_empty' => false,
'fields' => 'ids',
'meta_query' => array(
array(
'key' => 'foo',
'value' => 'bar',
),
),
) );
$this->assertEqualSets( array( $terms[0], $terms[1] ), $found );
delete_term_meta( $terms[1], 'foo', 'bar' );
$found = get_terms( 'wptests_tax', array(
'hide_empty' => false,
'fields' => 'ids',
'meta_query' => array(
array(
'key' => 'foo',
'value' => 'bar',
),
),
) );
$this->assertEqualSets( array( $terms[0] ), $found );
}
}