删除WordPress中的重复评论？

Question

任何人都知道sql查询或wordpress插件，这可能会帮助我删除重复的评论。

虽然我导入帖子，评论到wordpress，我有一些超时，并重复的过程，所以一些评论发布两次。

Answer 1

考虑看看一些WordPress的模式的图像，那么你应该能够确定要删除与查询的记录，如

SELECT wp_comments.* 
FROM wp_comments 
LEFT JOIN (
    SELECT MIN(comment_id) comment_id 
    FROM wp_comments 
    GROUP BY comment_post_id, comment_author, comment_content 
) to_keep ON wp_comments.comment_id = to_keep.comment_id 
WHERE to_keep.comment_id IS NULL 

您应该运行上面的查询，并确保您将返回正确的记录（将被删除的记录）。当你满意的查询工作，然后简单地把它从SELECT更改为DELETE

DELETE wp_comments 
FROM wp_comments 
LEFT JOIN (
    SELECT MIN(comment_id) comment_id 
    FROM wp_comments 
    GROUP BY comment_post_id, comment_author, comment_content 
) to_keep ON wp_comments.comment_id = to_keep.comment_id 
WHERE to_keep.comment_id IS NULL 

Answer 2

最近我有这个问题，最后写这个脚本来处理它。这样做的好处是它还会为每个帖子留下正确的评论数量。如果您只删除重复的评论而不更改此项，则计数将关闭。

# First select all comments 
$query = "SELECT `comment_ID`, `comment_post_ID`, `comment_content` FROM ".$wpdb->comments." WHERE 1"; 
$comments = $wpdb->get_results($query); 

# Array to hold keeper comment IDs so we dont delete them if there are doops 
$keeper_comments = array(); 

# Now check if each comment has any matching comments from the same post 
foreach ($comments as $comment) { 
    $query = "SELECT `comment_ID` FROM ".$wpdb->comments." WHERE `comment_ID` != ".$comment->comment_ID." AND `comment_post_ID` = ".$comment->comment_post_ID." AND `comment_content` = '".addslashes($comment->comment_content)."'"; 
    $matching_comments = $wpdb->get_results($query); 
    if ($wpdb->num_rows > 0) { 
     foreach ($matching_comments as $matching_comment) { 
      if (!in_array($matching_comment->comment_ID, $keeper_comments)) { 
       $wpdb->query("DELETE FROM ".$wpdb->comments." WHERE `comment_ID` = ".$matching_comment->comment_ID); 
       $wpdb->query("UPDATE ".$wpdb->posts." SET `comment_count` = `comment_count` - 1 WHERE `comment_ID` = ".$matching_comment->comment_ID); 
      } 
     } 
     $keeper_comments[] = $comment->comment_ID; 
    } 
}