为导入的帖子中的链接生成单框预览

[shyguy]

am i correct that onebox previews won’t be generated for links in imported posts?
for example, i’m not seeing it in youtube links on a phpbb migration.

any pointers for accomplishing this? thanks

[Richie (Richie Rich)]

If you rebuild the html on one post as a test, does it get onebox’d?

[shyguy]

it sure does!

how can i do it in bulk?

[shyguy]

read this whole thread for warnings!

i will give this a whirl…

docker exec discourse-app rake posts:rebake

edit: yes, this works
thanks for the hint, @Richie

[Richie (Richie Rich)]

Before you do…

How to avoid potential issues when rebaking all posts?

Hi! Rebaking all posts is sometimes a recommended action for various reasons. After my own experience of a rebake experience that raised issues and seen/foresee other potential others, I’d like to know how they can be avoided. If I rebake my 2M posts, it will trigger too many requests to Youtube and my IP will be blacklisted, preventing Discourse from generating previews. If oneboxes (with titles, thumbnails, excerpts copied in Discourse database - cooked field) original URLs went to be …

[Richie (Richie Rich)]

Just be careful, we have run in to problems with YouTube, Amazon and others blacklisting our server because we hammered them for onebox details when rebaking hundreds of thousands of posts

[shyguy]

uh oh. i already let it rip. i hope it will be ok?

phpbb=# select count(*) from phpbb_posts where (post_text like '%youtu%' or post_text like '%instagr%' or post_text like '%facebook%');
 count
-------
  1226
(1 row)

so there’s a ballpark… you think i’ll be ok? this is from my home IP lol. i’ll read your link and see if there is a way to be more careful next time.