[wp-trac] [WordPress Trac] #12955: Add get_post filter

[WordPress Trac]

#12955: Add get_post filter
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 Reporter:  JohnLamansky            |       Owner:
     Type:  feature request         |      Status:  new
 Priority:  normal                  |   Milestone:  Future Release
Component:  Posts, Post Types       |     Version:
 Severity:  normal                  |  Resolution:
 Keywords:  has-patch dev-feedback  |     Focuses:
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Comment (by westonruter):

 Just to note that this ticket is a dependency for previewing changes to
 posts in the Customizer. As noted in the closed duplicate #36879,
 currently previewing posts relies on queries being made without
 `suppress_filters` so that `the_posts` filter is applied:

 > This was originally reported as an an [https://github.com/xwp/wp-
 customize-posts/issues/96 issue] in the [https://github.com/xwp/wp-
 customize-posts Customize Posts] feature plugin for #34923. The plugin
 currently previews post data via the `the_posts` filter. This is
 problematic, however, because this filter is not called in queries with
 `suppress_filters` on or in calls to `get_post()`:
 >
 > > When querying posts via `get_posts()` or when using `new WP_Query(
 array( 'suppress_filters' => true ) )`, the `the_posts` filters which
 apply the previewed changes to the posts is not run. This is a problem
 with Core in that there are not always filters applied to post data. This
 necessitates, for example, for there to be a `comments_open` filter in
 addition to a `the_posts` filter, since `get_post()` will return a
 pristine copy of the post without any hooks for Customize Posts to apply
 the previewed changes. In reality, `get_post()` should be returning the
 dirty post as opposed to the pristine post, and so an additional
 `comments_open` filter wouldn't be needed.
 > >
 > > So, what is needed is a new filter to run whenever getting a post via
 `get_post()` to allow the array or object to be mutated. This filter can
 only be applied if `is_customize_preview()` since applying such a filter
 generally could be too far reaching.

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Ticket URL: <https://core.trac.wordpress.org/ticket/12955#comment:33>
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