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Comments: Improve performance of the wp_count_comments function.

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Improve performance of the `wp_count_comments` function by replacing a complex query with multiple calls to the `get_comments` function. Passing the `count` parameter to the `get_comments` function results in a simple 
count query that returns quickly. Using `get_comments` also means that query is cached and run through filters. 


Props FolioVision, markjaquith, nacin, ryan, coffee2code, wonderboymusic, ComputerGuru, jb510, SergeyBiryukov, Znuff, Rahe, uday17035, spacedmonkey, peterwilsoncc.
Fixes #19901.



git-svn-id: https://develop.svn.wordpress.org/trunk@53036 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Jonny Harris
2022-03-31 09:07:02 +00:00
parent 6c7b3de79f
commit 1d0c189f21
2 changed files with 90 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/wp-includes/comment.php
+20 -40
View File
@@ -383,21 +383,6 @@ function get_comment_count( $post_id = 0 ) {
$post_id = (int) $post_id;
$where = '';
if ( $post_id > 0 ) {
$where = $wpdb->prepare( 'WHERE comment_post_ID = %d', $post_id );
}
$totals = (array) $wpdb->get_results(
"
SELECT comment_approved, COUNT( * ) AS total
FROM {$wpdb->comments}
{$where}
GROUP BY comment_approved
",
ARRAY_A
);
$comment_count = array(
'approved' => 0,
'awaiting_moderation' => 0,
@@ -408,32 +393,27 @@ function get_comment_count( $post_id = 0 ) {
'all' => 0,
);
foreach ( $totals as $row ) {
switch ( $row['comment_approved'] ) {
case 'trash':
$comment_count['trash'] = $row['total'];
break;
case 'post-trashed':
$comment_count['post-trashed'] = $row['total'];
break;
case 'spam':
$comment_count['spam'] = $row['total'];
$comment_count['total_comments'] += $row['total'];
break;
case '1':
$comment_count['approved'] = $row['total'];
$comment_count['total_comments'] += $row['total'];
$comment_count['all'] += $row['total'];
break;
case '0':
$comment_count['awaiting_moderation'] = $row['total'];
$comment_count['total_comments'] += $row['total'];
$comment_count['all'] += $row['total'];
break;
default:
break;
}
$args = array(
'count' => true,
'update_comment_meta_cache' => false,
);
if ( $post_id > 0 ) {
$args['post_id'] = $post_id;
}
$mapping = array(
'approved' => 'approve',
'awaiting_moderation' => 'hold',
'spam' => 'spam',
'trash' => 'trash',
'post-trashed' => 'post-trashed',
);
$comment_count = array();
foreach ( $mapping as $key => $value ) {
$comment_count[ $key ] = get_comments( array_merge( $args, array( 'status' => $value ) ) );
}
$comment_count['all'] = $comment_count['approved'] + $comment_count['awaiting_moderation'];
$comment_count['total_comments'] = $comment_count['all'] + $comment_count['spam'];
return array_map( 'intval', $comment_count );
}
tests/phpunit/tests/comment/getCommentCount.php
+70
View File
@@ -11,6 +11,7 @@ class Tests_Get_Comment_Count extends WP_UnitTestCase {
$this->assertSame( 0, $count['trash'] );
$this->assertSame( 0, $count['post-trashed'] );
$this->assertSame( 0, $count['total_comments'] );
$this->assertSame( 0, $count['all'] );
}
public function test_get_comment_count_approved() {
@@ -97,4 +98,73 @@ class Tests_Get_Comment_Count extends WP_UnitTestCase {
$this->assertSame( 1, $count['post-trashed'] );
$this->assertSame( 0, $count['total_comments'] );
}
/**
* @ticket 19901
*
* @covers ::get_comment_count
*/
public function test_get_comment_count_validate_cache_comment_deleted() {
$comment_id = self::factory()->comment->create();
$count = get_comment_count();
$this->assertSame( 1, $count['total_comments'] );
wp_delete_comment( $comment_id, true );
$count = get_comment_count();
$this->assertSame( 0, $count['total_comments'] );
}
/**
* @ticket 19901
*
* @covers ::get_comment_count
*/
public function test_get_comment_count_validate_cache_post_deleted() {
$post_id = self::factory()->post->create();
$comment_id = self::factory()->comment->create(
array(
'comment_post_ID' => $post_id,
)
);
$count = get_comment_count( $post_id );
$this->assertSame( 1, $count['total_comments'] );
wp_delete_post( $post_id, true );
$count = get_comment_count( $post_id );
$this->assertSame( 0, $count['total_comments'] );
}
/**
* @ticket 19901
*
* @covers ::get_comment_count
*/
public function test_get_comment_count_validate_cache_comment_status() {
$comment_id = self::factory()->comment->create();
$count = get_comment_count();
$this->assertSame( 1, $count['approved'] );
$this->assertSame( 0, $count['trash'] );
$this->assertSame( 1, $count['total_comments'] );
wp_set_comment_status( $comment_id, 'trash' );
$count = get_comment_count();
$this->assertSame( 0, $count['approved'] );
$this->assertSame( 1, $count['trash'] );
$this->assertSame( 0, $count['total_comments'] );
}
}