[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:
     Type:  defect (bug)                         |  rachelbaker
 Priority:  normal                               |      Status:  closed
Component:  REST API                             |   Milestone:  4.7.4
 Severity:  normal                               |     Version:  4.7
 Keywords:  has-patch has-unit-tests fixed-      |  Resolution:  fixed
  major                                          |     Focuses:  rest-api
-------------------------------------------------+-------------------------
Changes (by swissspidy):

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


Comment:

 In [changeset:"40337"]:
 {{{
 #!CommitTicketReference repository="" revision="40337"
 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.

 Merges [40306] to the 4.7 branch.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/39881#comment:11>
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