`WP_Query` allows random ordering; `'orderby' => 'rand'` translates to
`ORDER BY RAND()`. This syntax results in random ordering that is not
consistent from request to request. MySQL supports the passing of a seed value
to random sorts, such as `ORDER BY RAND(3)`, which will return the same
random value each time it's called. `WP_Query` now supports this syntax, by
passing `RAND(3)` (or whatever integer seed value you'd like) as the value
of `'orderby'`.
Props hlashbrooke.
Fixes#35692.
Built from https://develop.svn.wordpress.org/trunk@36632
git-svn-id: http://core.svn.wordpress.org/trunk@36599 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Another chapter in the Storied Annals of Weird `in_array()` Behavior:
`in_array( 4, array( "4-cool-dudes" ) );` resolves to `true`, such that
`is_page( 4 )` was returning true for posts with the name `'4-cool-dudes'`.
We work around this behavior by ensuring that values passed to the `is_`
methods are cast to strings before the `in_array()` checks. ID checks still
work as expected; see #24674.
Props mikejolley, swissspidy, boonebgorges.
Fixes#35902.
Built from https://develop.svn.wordpress.org/trunk@36625
git-svn-id: http://core.svn.wordpress.org/trunk@36592 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Comment and term meta lazyloading for `WP_Query` loops, introduced in 4.4,
depended on filter callback methods belonging to `WP_Query` objects. This meant
storing `WP_Query` objects in the `$wp_filter` global (via `add_filter()`),
requiring that PHP retain the objects in memory, even when the local variables
would typically be expunged during normal garbage collection. In cases where a
large number of `WP_Query` objects were instantiated on a single pageload,
and/or where the contents of the `WP_Query` objects were quite large, serious
performance issues could result.
We skirt this problem by moving metadata lazyloading out of `WP_Query`. The
new `WP_Metadata_Lazyloader` class acts as a lazyload queue. Query instances
register items whose metadata should be lazyloaded - such as post terms, or
comments - and a `WP_Metadata_Lazyloader` method will intercept comment and
term meta requests to perform the cache priming. Since `WP_Metadata_Lazyloader`
instances are far smaller than `WP_Query` (containing only object IDs), and
clean up after themselves far better than the previous `WP_Query` methods (bp
only running their callbacks a single time for a given set of queued objects),
the resource use is decreased dramatically.
See [36525] for an earlier step in this direction.
Props lpawlik, stevegrunwell, boonebgorges.
Fixes#35816.
Built from https://develop.svn.wordpress.org/trunk@36566
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Lazyloading for comment meta and term meta, introduced into `WP_Query` in
4.4, used flags - `updated_term_meta_cache` and `updated_comment_meta_cache` -
in an attempt to prevent cache priming from happening more than once per query
object. This technique was mostly effective, but not entirely efficient, since
the flag didn't prevent the `lazyload_*_meta` callbacks from running. The
obvious solution - removing the filter callback after it'd be run once - was
dismissed for 4.4 because of concerns that `remove_filter()` could disable
lazyloading too generally in the context of nested queries, due to the way
`_wp_filter_build_unique_id()` doesn't always build sufficiently unique IDs for
similar objects. However, further testing shows that this concern is only valid
in a very small subset of cases, while the cost of keeping the query objects in
memory, via the `$wp_filter` global, is quite significant. As such, this
changeset removes the flags in favor of the `remove_filter()` technique.
See #35454, #35816.
Built from https://develop.svn.wordpress.org/trunk@36524
git-svn-id: http://core.svn.wordpress.org/trunk@36491 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This provides better parity with `get_queried_object()`, which will return the
first taxonomy/term matched by the current query.
[29891] introduced the abnormal behavior for the 'taxonomy' and 'term'
query vars.
Props Chouby.
Fixes#35619.
Built from https://develop.svn.wordpress.org/trunk@36484
git-svn-id: http://core.svn.wordpress.org/trunk@36451 1a063a9b-81f0-0310-95a4-ce76da25c4cd
The introduction of negative search terms in 4.4 [34934] introduced the
possibility that the ORDER BY clause of a search query could be assembled in
such a way as to create invalid syntax. The current changeset fixes this by
ensuring that the ORDER BY clause corresponding to the search terms is
excluded when it would otherwise be empty.
Props salvoaranzulla.
Fixes#35361.
Built from https://develop.svn.wordpress.org/trunk@36251
git-svn-id: http://core.svn.wordpress.org/trunk@36218 1a063a9b-81f0-0310-95a4-ce76da25c4cd
After [34659], it became possible to cause an incorrect redirect, by changing the slug of a post, then creating a new post with the old slug. The correct behaviour is to prevent redirecting to the old post.
Props dd32, pento.
Fixes#35031 for trunk.
Built from https://develop.svn.wordpress.org/trunk@36128
git-svn-id: http://core.svn.wordpress.org/trunk@36094 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Twelve years later, after no fewer than three themes have intentionally implemented popup comments in their functionality, before being abandoned for at least the last six years, we've reached a time where we can put this era behind us. A time when we can remove comment popup functionality from WordPress.
If this breaks the internet, I'll eat my hat.
Fixes#28617
Built from https://develop.svn.wordpress.org/trunk@35848
git-svn-id: http://core.svn.wordpress.org/trunk@35812 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Pass a keyword with a leading hyphen to exclude posts containing that keyword.
For example, 'taco -onions' will return posts that contain the word 'taco' but
do not contain the word 'onions'.
Props akibjorklund.
Fixes#33988.
Built from https://develop.svn.wordpress.org/trunk@34934
git-svn-id: http://core.svn.wordpress.org/trunk@34899 1a063a9b-81f0-0310-95a4-ce76da25c4cd
For the past 6 years, WordPress has operated as an oEmbed consumer, allowing users to easily embed content from other sites. By adding oEmbed provider support, this allows any oEmbed consumer to embed posts from WordPress sites.
In addition to creating an oEmbed provider, WordPress' oEmbed consumer code has been enhanced to work with any site that provides oEmbed data (as long as it matches some strict security rules), and provides a preview from within the post editor.
For security, embeds appear within a sandboxed iframe - the iframe content is a template that can be styled or replaced entirely by the theme on the provider site.
Props swissspidy, pento, melchoyce, netweb, pfefferle, johnbillion, extendwings, davidbinda, danielbachhuber, SergeyBiryukov, afercia
Fixes#32522.
Built from https://develop.svn.wordpress.org/trunk@34903
git-svn-id: http://core.svn.wordpress.org/trunk@34868 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Lazy-loading logic is moved to a method on `WP_Query`. This makes it possible
for comment feeds to take advantage of metadata lazyloading, in addition to
comments loaded via `comments_template()`.
This new technique parallels the termmeta lazyloading technique introduced in
[34704].
Fixes#34047.
Built from https://develop.svn.wordpress.org/trunk@34711
git-svn-id: http://core.svn.wordpress.org/trunk@34675 1a063a9b-81f0-0310-95a4-ce76da25c4cd
[34529] introduced lazyloading for the metadata belonging to terms matching
posts in the main `WP_Query`. The current changeset improves this technique
in the following ways:
* Term meta lazyloading is now performed on the results of all `WP_Query` queries, not just the main query.
* Fewer global variable touches and greater encapsulation.
* The logic for looping through posts to identify terms is now only performed once per `WP_Query`.
Props dlh, boonebgorges.
See #34047.
Built from https://develop.svn.wordpress.org/trunk@34704
git-svn-id: http://core.svn.wordpress.org/trunk@34668 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Previously, unattached attachments would have unsightly `/?attachment_id=1` URLs. As we've moved away from attachments being specifically attached to posts, instead being Media items, this has made the unattached URLs a more common occurrence.
We can breath easy once more, knowing that the world is a little bit safer from the horror of unnecessarily ugly URLs.
Props SergeyBiryukov, wonderboymusic, pento.
Fixes#1914.
Built from https://develop.svn.wordpress.org/trunk@34690
git-svn-id: http://core.svn.wordpress.org/trunk@34654 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Historically, `wp_old_slug_redirect()` has only ever redirected the old slug of posts, it hasn't included URL endpoints, or worked with comment feed URLs. By adding support for these, we ensure a greater range of URLs aren't killed when the slug changes.
Props swissspdy.
Fixes#33920.
Built from https://develop.svn.wordpress.org/trunk@34659
git-svn-id: http://core.svn.wordpress.org/trunk@34623 1a063a9b-81f0-0310-95a4-ce76da25c4cd
By forcing all clause keys to be strings, we make it possible to use strict
comparison when validating values of 'orderby' as passed to `WP_Query`. This
eliminates situations where the presence of numeric clause keys could result
in an improperly validated 'orderby' value.
Props nikolov.tmw.
Fixes#32937.
Built from https://develop.svn.wordpress.org/trunk@34090
git-svn-id: http://core.svn.wordpress.org/trunk@34058 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Setting the default value of the `queried_object_id` property to `0` meant
that, when called early enough in the WP bootstrap, `get_queried_object()`
could short-circuit the normal query by fooling it into thinking that the
request was for a page with id 0. Setting the default value to `null` instead
avoids this problem.
Props gradyetc, jazbek.
Fixes#31355.
Built from https://develop.svn.wordpress.org/trunk@34073
git-svn-id: http://core.svn.wordpress.org/trunk@34041 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Boone Gorges
Pascal Birchler
Rachel Baker
Gary Pendergast
Sergey Biryukov
John Blackbourn
Drew Jaynes
Scott Taylor