刪除WordPress中的重複評論？

Question

任何人都知道sql查詢或wordpress插件，這可能會幫助我刪除重複的評論。

雖然我導入帖子，評論到wordpress，我有一些超時，並重復的過程，所以一些評論發佈兩次。

Answer 1

考慮看看一些WordPress的模式的圖像，那麼你應該能夠確定要刪除與查詢的記錄，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 

您應該運行上面的查詢，並確保您將返回正確的記錄（將被刪除的記錄）。當你滿意的查詢工作，然後簡單地把它從SELECT更改爲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

最近我有這個問題，最後寫這個腳本來處理它。這樣做的好處是它還會爲每個帖子留下正確的評論數量。如果您只刪除重複的評論而不更改此項，則計數將關閉。

# 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; 
    } 
}