[buddypress-trac] [BuddyPress Trac] #8764: Improve Activity/Group Activity function to post updates

[buddypress-trac]

#8764: Improve Activity/Group Activity function to post updates
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 Reporter:  imath     |      Owner:  imath
     Type:  task      |     Status:  assigned
 Priority:  high      |  Milestone:  11.0.0
Component:  Activity  |    Version:
 Severity:  normal    |   Keywords:
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 Working on the BP Attachments Add-on (see this merged
 [https://github.com/buddypress/bp-attachments/pull/44 GHPR]) I noticed
 that in order to be able to simply attach a media as the content of an
 activity from the BP Nouveau Activity Post Form, it was necessary to
 improve these three functions:
 - `bp_activity_post_update()` so that it uses a filter name when
 "bp_parsing_args",
 - `groups_post_update()` so that it truly respects the `'error_type' =>
 'wp_error'` argument,
 - `bp_nouveau_ajax_post_update()` to avoid a check about the
 `$_POST['content']` that is already done in the 2 above functions and so
 that it uses the `'error_type' => 'wp_error'` argument.

 I'll share a PR about these changes asap.

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Ticket URL: <https://buddypress.trac.wordpress.org/ticket/8764>
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