If the post cache is not cleared at this point, the cache can become stale
for operations performed before the cache is cleared later in the function.
Specifically, the generation of a `guid` for new posts can use stale data,
resulting in non-unique values. [33262] introduced a call to `get_post()`
that introduced just such an invalidation problem.
Fixes#5305.
Built from https://develop.svn.wordpress.org/trunk@33630
git-svn-id: http://core.svn.wordpress.org/trunk@33597 1a063a9b-81f0-0310-95a4-ce76da25c4cd
On certain permalink structures, a numeric post slug will result in a post
permalink that conflicts with a date archive URL. For example, with permastruct
`/%year%/%monthnum%/%postname%/`, a post published in May 2015 with slug
`'15'` will result in a URL (`/2015/05/15/`) that conflicts with the archive
for May 15, 2015.
To avoid this problem, `wp_unique_post_slug()` rejects a requested slug when it
would generate a conflict of this type. Thus, in our example, `'15'` would
become `'15-2'`.
Props valendesigns, boonebgorges, Denis-de-Bernardy, loushou.
See #5305.
Built from https://develop.svn.wordpress.org/trunk@32647
git-svn-id: http://core.svn.wordpress.org/trunk@32617 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Clarify `@return` values where necessary.
In `wp_delete_post_revision()`, `wp_delete_post()` doesn't return `WP_Error`, so that check can be removed.
`wp_revisions_to_keep()` always returns an `int`, so `wp_revisions_enabled()` can use strict comparison.
See #32444.
Built from https://develop.svn.wordpress.org/trunk@32621
git-svn-id: http://core.svn.wordpress.org/trunk@32591 1a063a9b-81f0-0310-95a4-ce76da25c4cd
The new algorithm uses a hash table rather than function recursion, reducing
complexity to O(N). On large numbers of pages, the performance improvement is
several orders of magnitude.
Props santagada, hailin, mihai.
Fixes#10852.
Built from https://develop.svn.wordpress.org/trunk@32355
git-svn-id: http://core.svn.wordpress.org/trunk@32326 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Detecting SSL status on the Dashboard introduces problems when writing content
that is saved to the database and then displayed on the front end, where SSL
may be optional (or impossible, due to self-signed certificates). The new
approach parallels the logic in `get_home_url()` for forcing HTTPS.
See [31614] #15928 for background.
Fixes#32112 for trunk.
Built from https://develop.svn.wordpress.org/trunk@32342
git-svn-id: http://core.svn.wordpress.org/trunk@32313 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Replace exisiting smilies with equivalent emoji, or with shiny new smiley images where no emoji existed.
Props batmoo, joen and mkaz for the original plugin upon which this is based.
Props pento, iseulde, kraftbj and peterwilsoncc for making the internet's dreams come true.
See #31242
Built from https://develop.svn.wordpress.org/trunk@31733
git-svn-id: http://core.svn.wordpress.org/trunk@31714 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This change makes the 'post_type' clause in `wp_list_authors()` redundant, so
we remove it. Third-party plugins using `get_posts_by_author_sql()` may have
similarly redundant clauses, but this won't change the results returned by the
SQL queries.
Also adds unit tests for `get_posts_by_author_sql()`.
Props pbearne.
Fixes#30354.
Built from https://develop.svn.wordpress.org/trunk@31653
git-svn-id: http://core.svn.wordpress.org/trunk@31634 1a063a9b-81f0-0310-95a4-ce76da25c4cd
`wp_get_attachment_url()`, via `wp_upload_dir()`, uses 'siteurl' to generate
attachment URLs. When a site is SSL-optional on the front end - ie, 'siteurl'
is non-HTTPS, but SSL is available - a number of situations can arise where
non-HTTPS attachment URLs cause browser mixed-content warnings:
a) SSL is forced in the admin and `wp_get_attachment_url()` is used to generate the `<img>` tag for an inserted image. In these cases, the post content will contain non-HTTPS. Viewing/editing this post in the Dashboard will result in non-HTTPS images being served in an SSL environment.
b) `wp_get_attachment_url()` is used in a theme to generate an `<img>` `src` attribute on a public page. When viewing that page over SSL, the images will have HTTP URLs.
This changeset switches attachment URLs to HTTPS when it's determined that the
host supports SSL. This happens when 'siteurl' is non-SSL, but the current page
request *is* over SSL, and the host of the current request matches the host of
the URL being generated.
Props joemcgill, boonebgorges.
Fixes#15928.
Built from https://develop.svn.wordpress.org/trunk@31614
git-svn-id: http://core.svn.wordpress.org/trunk@31595 1a063a9b-81f0-0310-95a4-ce76da25c4cd
In some cases, the values of `$old_status` and `$new_status` may be the same thing before and after a post status is "transitioned". An example of this would be the scenario where a published post is being updated: the status before and after the update both equal 'publish'.
Further, the documentation clarifies that if the intent is to only execute code when initially transitioningto a post status from something else, the 'transition_post_status' hook should be used instead of one of the dynamic hooks to avoid confusion.
Props Idealien for the initial patch.
Fixes#31099.
Built from https://develop.svn.wordpress.org/trunk@31461
git-svn-id: http://core.svn.wordpress.org/trunk@31442 1a063a9b-81f0-0310-95a4-ce76da25c4cd
In PHP 5.3.0, `is_a()` is no longer deprecated, and will therefore no longer throw `E_STRICT` warnings.
To avoid warnings in PHP < 5.3.0, convert all `is_a()` calls to `$var instanceof WP_Class` calls.
`instanceof` does not throw any error if the variable being tested is not an object, it simply returns `false`.
Props markoheijnen, wonderboymusic.
Fixes#25672.
Built from https://develop.svn.wordpress.org/trunk@31188
git-svn-id: http://core.svn.wordpress.org/trunk@31169 1a063a9b-81f0-0310-95a4-ce76da25c4cd
