2904: Change detection for forum posts - Composr CMS feature tracker

ID	Project	Category	View Status	Date Submitted	Last Update

2904	Composr	cns_forum	public	2016-10-27 21:28	2016-10-28 14:54

Reporter	PDStig	Assigned To
Priority	normal	Severity	feature
Status	new	Resolution	open

Summary	2904: Change detection for forum posts
Description	Implement change_detection.php for forum posts and comments so that users can see new posts as they are made. I can commit this myself if accepted. I've already implemented it on lovinity.org.
Additional Information	May also want to implement it on the full editor if possible where the posts display below the editor.
Tags	No tags attached.
Attach Tags	(Separate by ",")

Time estimation (hours)	16
Sponsorship open

Date Added	Member	Amount Sponsored

Chris Graham 2016-10-28 14:53 administrator ~4493	I suspect this is more complex than you think to do well enough for mainstream Composr... 1) We would need to have a "has not changed" signal that is extremely efficient, preferably before any database connection is opened. This is how the AJAX checks for notifications and chat messages work, because people will leave things open a long time so the regular checks have to be very fast to process. 2) If pagination is active and you're not on the last page, it shouldn't show new posts (presumably). 3) If threaded view is active we definitely shouldn't refresh the whole topic, so we need to load up individual posts properly, and insert them in the right positions in the tree. Previously I was also concerned about adding table rows dynamically without making deep assumptions about templates, but with modern browsers this should not be an issue, and we moved to divs anyway.

Chris Graham 2016-10-28 14:54 administrator ~4494	Oh, and it needs to be configurable. Many webhosts prohibit polling.

View Status	Private (for security issues or disclosing of private information; if you submit as a guest, you will not be able to see your submission)
Note
Upload Files Maximum size: 32,768 KiB	Attach files by dragging & dropping, selecting or pasting them.
You are not logged in	You are not logged in. This means you will not get any e-mail notifications. And if you reply, we will not know for sure you are the original poster of the issue.

Date Modified	Username	Field	Change
2016-10-27 21:28	PDStig	New Issue
2016-10-27 21:28	PDStig	Additional Information Updated
2016-10-27 21:29	PDStig	Description Updated
2016-10-27 21:30	PDStig	Relationship added	related to 2903
2016-10-27 21:32	PDStig	Relationship added	related to 2905
2016-10-27 21:38	PDStig	Relationship added	related to 2906
2016-10-28 14:53	Chris Graham	Time estimation (hours)	=> 16
2016-10-28 14:53	Chris Graham	Note Added: 0004493
2016-10-28 14:54	Chris Graham	Note Added: 0004494
2018-08-05 13:41	Chris Graham	Relationship added	related to 3660