[wp-trac] [WordPress Trac] #39881: `WP_REST_Posts_Controller::check_read_permission()` should check if `$parent` exists before calling itself

[WordPress Trac]

#39881: `WP_REST_Posts_Controller::check_read_permission()` should check if
`$parent` exists before calling itself
---------------------------------------------+--------------------------
 Reporter:  GhostToast                       |       Owner:  rachelbaker
     Type:  defect (bug)                     |      Status:  closed
 Priority:  normal                           |   Milestone:  4.7.4
Component:  REST API                         |     Version:  4.7
 Severity:  normal                           |  Resolution:  fixed
 Keywords:  has-patch has-unit-tests commit  |     Focuses:  rest-api
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Changes (by rachelbaker):

 * status:  reviewing => closed
 * resolution:   => fixed


Comment:

 In [changeset:"40306"]:
 {{{
 #!CommitTicketReference repository="" revision="40306"
 REST API: Confirm the parent post object of an attachment exists in
 `WP_REST_Posts_Controller::check_read_permission()`.

 Avoid a PHP Error when attempting to embed the parent post of an
 attachment, when the parent post ID is invalid. Instead check if the
 parent post object exists before checking the read permission for the
 parent post.

 Props GhostToast.
 Fixes #39881.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/39881#comment:8>
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