Peter Wilson 17ee62881a Posts, Post Types: Additional functions to check if a post is publicly viewable. ...

Introduces `is_post_status_viewable()` as a sibling to `is_post_type_viewable()`. Internal and protected statuses are never considered viewable. For built in posts statuses the `public` attribute is checked, for custom statuses the `publicly_queryable` attribute is checked.

Introduces `is_post_publicly_viewable()` for determining if an individual post can be viewed by logged out users. A post is considered viewable if both `is_post_status_viewable()` and `is_post_type_viewable()` return `true` for the post's attributes.

Additionally modifies `is_post_type_viewable()` to return `false` if an unregistered post type is passed to the function to avoid attempting to access properties on a non-object.

Props peterwilsoncc, SergeyBiryukov, whyisjake, TimothyBlynJacobs.
Fixes #49380.


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git-svn-id: http://core.svn.wordpress.org/trunk@49809 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2021-02-01 23:33:02 +00:00

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