如何获得Facebook帖子的所有评论和喜欢？

Question

If you have the read_stream permission and you get the posts of a facebook user, for each post you only get the top X comments and top X likes. Is there a way to paginate through the likes/comments and get them all?

If there's any FQL query which would return ALL likes or comments for a post, or let me page through them 20 or so at a time, that would work too.

Answer 1

Edited:

You have to get each status to get all comments/likes on that status. If you have a specific post that you want the comments for:

$post     = '100003978045030_105596009583000';
$comments = array();
$done     = false;
$options  = array();
$path     = '/' . $post . '/comments';

while(!$done){
    try{
        $data = $facebook->api($path, 'GET', $options);
    } catch(FacebookApiException $e) {
        echo $e->getMessage();
        $data = null;
        $done = true;
    }
    if(!is_null($data)){
        $comments = array_merge($comments, $data['data']);
        if(isset($data['paging']['next']) && !empty($data['paging']['next'])){
            $parts = parse_url($data['paging']['next']);
            $path  = $parts['path'];
            parse_str($parts['query'], $options);
        } else {
            $done = true;
        }
    }
}

print_r($comments);

Answer 2

In FQL, you just have to query the comment or like table:

SELECT post_id, text, fromid FROM comment 
   WHERE post_id IN 
      (SELECT post_id FROM stream WHERE source_id = USER_OR_PAGE_ID
       AND comments.count > 0 )
   LIMIT 0, 100

This will give you the first 100 results (but less than 100 may be returned, since those not visible to you will be filtered out).

Note that the like table is hobbled for page streams.