Can't flag a closed topic a second time

[watchmanmonitor (Allen Hancock)]

Continuing the discussion from Should it be possible to flag a closed issue?:

@watchmanmonitor

I just tried to flag this closed issue (the problem happened again) and received a 500 error on meta.

So, I’m trying to re-open this topic:

Newly approved members remain visible after approval

Repro: Get notified of a pending member visit the admin page at /admin/users/list/pending click the checkbox next to the new person click Approve at the bottom of the screen dismiss the congratulatory dialog box View that the user is still listed. Expected: that the account is no longer visible refresh the page and the user will no longer be listed (as the approval was carried out successfully) Bonus points for providing a link to /admin/users/list/new so the new user(s) can be reviewed

because I still have that issue.

However, I’ve already flagged it once, and I’m getting a 500 error on meta.

I tried to flag the follow up:

Should it be possible to flag a closed issue?

Continuing the discussion from Newly approved members remain visible after approval: I just tried to flag this closed issue (the problem happened again) and received a 500 error on meta. Should the flag button be disabled, or should flags be allowed on closed topics, or ?

and I think it worked once, but can’t tell, and I get a 500 error when I try a second time.

So, I have a new bug, and I’d like topic 27636 re-opened for discussion, please.

[techAPJ (Arpit Jalan)]

Flagging a topic/post is only allowed once per user, as per this code:

https://github.com/discourse/discourse/blob/master/lib/guardian/post_guardian.rb#L21

I will improve the error message to make it more clear.

[watchmanmonitor (Allen Hancock)]

Thanks @techAPJ

I was getting a 500 error on meta, not a message saying my action wasn’t allowed.

Also, I hope that the message would be displayed before I can enter my post.