[buddypress-trac] [BuddyPress Trac] #4759: Group forum permalink after reply broken when using persistent object cache

[buddypress-trac]

#4759: Group forum permalink after reply broken when using persistent object cache
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 Reporter:  wpdennis      |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  2.7
Component:  Forums        |     Version:  1.0
 Severity:  blocker       |  Resolution:
 Keywords:  has-patch     |
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Changes (by r-a-y):

 * keywords:   => has-patch
 * version:  1.6.1 => 1.0
 * milestone:  Future Release => 2.7


Comment:

 I came across this issue today (don't ask why).

 The problem is with the legacy forums' usage of their own object caching
 functions, particularly `wp_cache_flush( 'my-cache-group' )`.  WP's
 `wp_cache_flush()` doesn't accept a parameter, so it is impossible to
 clear the cache for these cache groups.  Whereas old bbPress / BackPress
 does support cache group clearing:
 https://backpress.trac.wordpress.org/browser/trunk/includes/functions.wp-
 object-cache.php?marks=77,80#L67

 Attached patch implements wpdennis' suggestion from comment:3, but only
 for the cache groups that are necessary.

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Ticket URL: <https://buddypress.trac.wordpress.org/ticket/4759#comment:6>
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