Prior to this commit, the `WP_Query` class split the query for posts into two database queries. First, it initiated an ID-based query to retrieve post IDs, followed by a call to _prime_post_caches to fetch post objects if they weren't already in memory. This splitting of queries was limited to cases where fewer than 500 posts were being requested, to prevent a potentially large database query within the IN statement in _prime_post_caches.
However, this limitation becomes unnecessary when a persistent object cache is enabled, as the post objects can be efficiently retrieved from the fast object cache. This commit transfers the responsibility of fetching posts to the object cache, which not only speeds up the process but also reduces the strain on the database server.
Props peterwilsoncc, spacedmonkey, SergeyBiryukov.
Fixes#57296.
git-svn-id: https://develop.svn.wordpress.org/trunk@56513 602fd350-edb4-49c9-b593-d223f7449a82
`str_starts_with()` and `str_ends_with()` were introduced in PHP 8.0 to perform a case-sensitive check indicating if the string to search in (haystack) begins or ends with the given substring (needle).
WordPress core includes a polyfill for these functions on PHP < 8.0 as of WordPress 5.9.
Follow-up to [55990], [56014].
See #58220.
git-svn-id: https://develop.svn.wordpress.org/trunk@56019 602fd350-edb4-49c9-b593-d223f7449a82
`str_contains()` was introduced in PHP 8.0 to perform a case-sensitive check indicating if the string to search in (haystack) contains the given substring (needle).
WordPress core includes a polyfill for `str_contains()` on PHP < 8.0 as of WordPress 5.9.
This commit replaces `false !== strpos( ... )` with `str_contains()` in core files, making the code more readable and consistent, as well as better aligned with modern development practices.
Follow-up to [52039], [52040], [52326], [55703], [55710], [55987].
Props Soean, spacedmonkey, costdev, dingo_d, azaozz, mikeschroder, flixos90, peterwilsoncc, SergeyBiryukov.
Fixes#58206.
git-svn-id: https://develop.svn.wordpress.org/trunk@55988 602fd350-edb4-49c9-b593-d223f7449a82
As of [55749] wp_queue_comments_for_comment_meta_lazyload is no longer used in core. This commit, deprecates this function. Update docs and tests accordingly.
Props sh4lin, spacedmonkey, costdev, peterwilsoncc.
Fixes#58301.
git-svn-id: https://develop.svn.wordpress.org/trunk@55855 602fd350-edb4-49c9-b593-d223f7449a82
When the logic to exclude images that likely appear above the fold from being lazy-loaded was introduced in WordPress 5.9, initially only images that appear within the main query loop were being considered. However, there is a good chance that images above the fold are rendered before the loop starts, for example in the header template part.
It is particularly common for a theme to display the featured image for a single post in the header. Based on HTTP Archive data from February 2023, the majority of LCP images that are still being lazy-loaded on WordPress sites use the `wp-post-image` class, i.e. are featured images.
This changeset enhances the logic in `wp_get_loading_attr_default()` to not lazy-load images that appear within or after the header template part and before the query loop, using a new `WP_Query::$before_loop` property.
For block themes, this was for the most part already addressed in [55318], however this enhancement implements the solution in a more generally applicable way that brings the improvement to classic themes as well.
Props thekt12, flixos90, spacedmonkey, costdev, zunaid321, mukesh27.
Fixes#58211.
See #53675, #56930.
git-svn-id: https://develop.svn.wordpress.org/trunk@55847 602fd350-edb4-49c9-b593-d223f7449a82
In [34270] introduced lazy loading of comment meta. However, this was only in the context of `WP_Query`. Other parts of the codebase, like `WP_Comment_Query` did not lazily load comment meta. In this change, calls to `update_meta_cache` are now replaced with `wp_lazyload_comment_meta`, that instead of priming comment meta caches, just adds them to the queue to be primed it ever called. This results in far less database queries, as there a number of places where comment meta is being primed unnecessarily and never used. Adding everything to the comment meta queue, also means that if comment meta is used, that is all loaded in a single database / cache call.
Follow on from [55671], [55747].
Props spacedmonkey, peterwilsoncc, flixos90, mukesh27.
Fixes#57801.
git-svn-id: https://develop.svn.wordpress.org/trunk@55749 602fd350-edb4-49c9-b593-d223f7449a82
`str_starts_with()` was introduced in PHP 8.0 to perform a case-sensitive check indicating if the string to search in (haystack) begins with the given substring (needle).
WordPress core includes a polyfill for `str_starts_with()` on PHP < 8.0 as of WordPress 5.9.
This commit replaces `0 === strpos( ... )` with `str_starts_with()` in core files, making the code more readable and consistent, as well as improving performance.
While `strpos()` is slightly faster than the polyfill on PHP < 8.0, `str_starts_with()` is noticeably faster on PHP 8.0+, as it is optimized to avoid unnecessarily searching along the whole haystack if it does not find the needle.
Follow-up to [52039], [52040], [52326].
Props spacedmonkey, costdev, sabernhardt, mukesh27, desrosj, jorbin, TobiasBg, ayeshrajans, lgadzhev, SergeyBiryukov.
Fixes#58012.
git-svn-id: https://develop.svn.wordpress.org/trunk@55703 602fd350-edb4-49c9-b593-d223f7449a82
Remove usage of `mysql2date` in `generate_postdata`. `mysql2date` has a performance overhead, as it creates a `DateTimeZone` object each time it is called. Use a simple
sub string function to generate the values needed for the `currentmonth` and `currentday` global variables.
Props spacedmonkey, Rarst, SergeyBiryukov, flixos90.
Fixes#57683.
git-svn-id: https://develop.svn.wordpress.org/trunk@55558 602fd350-edb4-49c9-b593-d223f7449a82
Give developers more control over how query caches are handled within an object caches. Now all caches that cache the result of a query, are cached in a group that is suffixed with -queries. Developers can use these groups, to add custom cache invalidation rules or to make them none persistent.
Props spacedmonkey, owi, tillkruess, skithund, peterwilsoncc, flixos90, sergeybiryukov, mukesh27.
Fixes#57625.
git-svn-id: https://develop.svn.wordpress.org/trunk@55526 602fd350-edb4-49c9-b593-d223f7449a82
In [47938] the `wp_cache_get_multiple` function was added to core. This function allows for multiple cache keys to be received from cache in a single function call. `wp_queue_posts_for_term_meta_lazyload` function does many calls to cache. To get taxonomy relationship for multiple posts and get all terms. Replace calls to `get_object_term_cache` with calls to `wp_cache_get_multiple` and `_prime_term_caches`. This improves performance on sites that implement the `wp_cache_get_multiple` in their object caching drop-in.
Props spacedmonkey, ocean90, SergeyBiryukov, costdev, flixos90, joemcgill, 10upsimon.
Fixes#57150.
git-svn-id: https://develop.svn.wordpress.org/trunk@55252 602fd350-edb4-49c9-b593-d223f7449a82
Previously, the `s` argument of the `WP_Query::parse_query()` method searched the `post_title`, `post_excerpt`, and `post_content` fields, with no way of controlling this apart from using the `posts_search` filter and adjusting the SQL manually. This changeset adds the ability to specify which fields are searched when performing a query, using the `search_columns` argument.
Props johnbillion, birgire, petitphp, audrasjb, costdev, mukesh27.
Fixes#43867.
git-svn-id: https://develop.svn.wordpress.org/trunk@55248 602fd350-edb4-49c9-b593-d223f7449a82
Part revert of [54352]. In cases where queries are not split, then it results in priming posts that are already loaded resulting in a superfluous database query.
Props spacedmonkey, flixos90, peterwilsoncc.
Fixes#57373.
git-svn-id: https://develop.svn.wordpress.org/trunk@55035 602fd350-edb4-49c9-b593-d223f7449a82
While using reserved PHP keywords as parameter name labels is allowed, in the context of function calls using named parameters in PHP 8.0+, this will easily lead to confusion. To avoid that, it is recommended not to use reserved keywords as function parameter names.
This commit:
* Renames the `$var` and `$default` parameters to `$query_var` and `$default_value` in `get_query_var()`.
* Renames the `$var` parameter to `$query_var` in `set_query_var()`.
Follow-up to [52946], [52996], [52997], [52998], [53003], [53014], [53029], [53039], [53116], [53117], [53137], [53174], [53184], [53185], [53192], [53193], [53198], [53203], [53207], [53215], [53216], [53220], [53230], [53232], [53236], [53239], [53240], [53242], [53243], [53245], [53246], [53257], [53269], [53270], [53271], [53272], [53273], [53274], [53275], [53276], [53277], [53281], [53283], [53284], [53285], [53287], [53364], [53365], [54927], [54929], [54930], [54931], [54932], [54933], [54938], [54943], [54944], [54945], [54946], [54947], [54948], [54950], [54951], [54952], [54956], [54959], [54960], [54961].
Props jrf, aristath, poena, justinahinon, SergeyBiryukov.
See #56788.
git-svn-id: https://develop.svn.wordpress.org/trunk@54962 602fd350-edb4-49c9-b593-d223f7449a82
Ensure only full post objects are passed to `update_post_author_caches()` when called within `WP_Query::the_post()`. This prevents an error when starting the Loop for Queries initiated with a subset of fields or IDs only.
Props konyoldeath, dd32, lozula, TimothyBlynJacobs, spacedmonkey, mxbclang, peterwilsoncc.
Fixes#56948.
git-svn-id: https://develop.svn.wordpress.org/trunk@54771 602fd350-edb4-49c9-b593-d223f7449a82
Bypass caching within `WP_Query` when the `SELECT` clause has been modified via a filter. This prevents both cache key collisions and the returning of incomplete or unexpected results when the `SELECT` clause has been modified by an extender.
Props pypwalters, claytoncollie, johnwatkins0, TimothyBlynJacobs, costdev, spacedmonkey, peterwilsoncc.
Fixes#57012.
git-svn-id: https://develop.svn.wordpress.org/trunk@54768 602fd350-edb4-49c9-b593-d223f7449a82
Introduce `WP_Query::generate_cache_key()` for generating the cache key used by the main database query.
This removes the need for a filter to test that cache keys do not include the WPDB placeholder causing unreachable cache keys. The tests now call `WP_Query::generate_cache_key()` directly.
The filter `wp_query_cache_key` is removed as a hard deprecation. The filter was not included in a stable release.
Follow up to [54634].
Props spacedmonkey, jorbin, azaozz, hellofromtonya, mukesh27, peterwilsoncc, desrosj, audrasjb, adamsilverstein, flixos90, davidbaumwald, joedolson, sergeybiryukov.
Fixes#56802.
git-svn-id: https://develop.svn.wordpress.org/trunk@54685 602fd350-edb4-49c9-b593-d223f7449a82
Remove escape placeholder from query cache key, as placeholders are a based on a unique id on every request. This means that it is impossible for a cache to be reused, making queries that use escape placeholders such as `LIKE` searches, unable to be cached.
Props dhl, spacedmonkey, peterwilsoncc, desrosj, chaion07, davidbaumwald, mukesh27.
Fixes#56802.
git-svn-id: https://develop.svn.wordpress.org/trunk@54634 602fd350-edb4-49c9-b593-d223f7449a82
`WP_Query` methods assume that `get_queried_object()` would return a non-null value, which is not always the case.
This commit resolves various warnings in `WP_Query` along the lines of:
{{{
Attempt to read property "post_type" on null in wp-includes/class-wp-query.php on line 4338
}}}
Follow-up to [1728], [3639], [8807], [49119].
Props dd32, yellyc, boonebgorges, darkskipper, Howdy_McGee, swissspidy, nacin, mikeschroder, mikejolley, sterlo, datainterlock, utsavmadaan823, kanlukasz, woji29911, hellofromTonya, zikubd, deksar, bwbama, noplanman, nouarah, SergeyBiryukov.
Fixes#29660.
git-svn-id: https://develop.svn.wordpress.org/trunk@54496 602fd350-edb4-49c9-b593-d223f7449a82
Move call to `update_menu_item_cache` in `WP_Query` to after post meta caches for menu items are primed.
Props spacedmonkey, peterwilsoncc, mukesh27.
See #55620.
git-svn-id: https://develop.svn.wordpress.org/trunk@54410 602fd350-edb4-49c9-b593-d223f7449a82
In [53941] database query caching was added to `WP_Query`. However on sites with persistent object caching enabled, this resulted in a high number of unnecessary cache set and adds being run on every request. Caches are not set, if the query cache already exists and is cached. Replace usage of `update_post_caches` with `_prime_post_caches` to ensure that only posts that are not in cache are primed.
Props spacedmonkey, peterwilsoncc, mukesh27.
See #22176.
git-svn-id: https://develop.svn.wordpress.org/trunk@54352 602fd350-edb4-49c9-b593-d223f7449a82
Dynamic (non-explicitly declared) properties are deprecated as of PHP 8.2 and are expected to become a fatal error in PHP 9.0.
There are a number of ways to mitigate this:
* If it is an accidental typo for a declared property: fix the typo.
* For known properties: declare them on the class.
* For unknown properties: add the magic `__get()`, `__set()`, et al. methods to the class or let the class extend `stdClass` which has highly optimized versions of these magic methods built in.
* For unknown ''use'' of dynamic properties, the `#[AllowDynamicProperties]` attribute can be added to the class. The attribute will automatically be inherited by child classes.
Trac ticket #56034 is open to investigate and handle the third and fourth type of situations, however it has become clear this will need more time and will not be ready in time for WP 6.1.
To reduce “noise” in the meantime, both in the error logs of WP users moving onto PHP 8.2, in the test run logs of WP itself, in test runs of plugins and themes, as well as to prevent duplicate tickets from being opened for the same issue, this commit adds the `#[AllowDynamicProperties]` attribute to all “parent” classes in WP.
The logic used for this commit is as follows:
* If a class already has the attribute: no action needed.
* If a class does not `extend`: add the attribute.
* If a class does `extend`:
- If it extends `stdClass`: no action needed (as `stdClass` supports dynamic properties).
- If it extends a PHP native class: add the attribute.
- If it extends a class from one of WP's external dependencies: add the attribute.
* In all other cases: no action — the attribute should not be needed as child classes inherit from the parent.
Whether or not a class contains magic methods has not been taken into account, as a review of the currently existing magic methods has shown that those are generally not sturdy enough and often even set dynamic properties (which they should not). See the [https://www.youtube.com/watch?v=vDZWepDQQVE live stream from August 16, 2022] for more details.
This commit only affects classes in the `src` directory of WordPress core.
* Tests should not get this attribute, but should be fixed to not use dynamic properties instead. Patches for this are already being committed under ticket #56033.
* While a number bundled themes (2014, 2019, 2020, 2021) contain classes, they are not a part of this commit and may be updated separately.
Reference: [https://wiki.php.net/rfc/deprecate_dynamic_properties PHP RFC: Deprecate dynamic properties].
Follow-up to [53922].
Props jrf, hellofromTonya, markjaquith, peterwilsoncc, costdev, knutsp, aristath.
See #56513, #56034.
git-svn-id: https://develop.svn.wordpress.org/trunk@54133 602fd350-edb4-49c9-b593-d223f7449a82
Modify how `WP_Query` determines whether a database query contains a taxonomy component and accounts for term changes when generating the cache key. This presents a stale cache been used under some circumstances.
Props Chouby, costdev, peterwilsoncc.
See #22176.
git-svn-id: https://develop.svn.wordpress.org/trunk@54111 602fd350-edb4-49c9-b593-d223f7449a82
Add object caching to the first database query in `WP_Query`, ie the database query for post IDs that match the desired result. Randomly ordered queries remain uncached as they are not intended to return consistent results.
Caching of ID queries is enabled by default, per the post object, term and meta caches.
Props spacedmonkey, aaroncampbell, batmoo, chriscct7, costdev, dd32, drewapicture, johnbillion, mukesh27, nacin, ocean90, peterwilsoncc, ryan, scribu, sergeybiryukov, tillkruss.
Fixes#22176.
git-svn-id: https://develop.svn.wordpress.org/trunk@53941 602fd350-edb4-49c9-b593-d223f7449a82
Several query vars only accept a scalar value and pass the value through functions that assume a scalar value. Adding extra guard conditions to the types of query vars doesn't affect their functionality but does remove PHP notices and warnings that can otherwise be generated when a non-scalar value such as an array is present in a query var.
Props juliobox, xknown, SergeyBiryukov, dave1010, nacin, tellyworth, dd32, audrasjb, johnregan3
Fixes#17737
git-svn-id: https://develop.svn.wordpress.org/trunk@53891 602fd350-edb4-49c9-b593-d223f7449a82
* Make the function description more specific, for consistency with other similar functions.
* Add a `@since` note for the `$update_menu_item_cache` parameter of `WP_Query::parse_query()`.
* Add missing `@covers` tags for the unit tests.
Follow-up to [53504].
See #55620.
git-svn-id: https://develop.svn.wordpress.org/trunk@53508 602fd350-edb4-49c9-b593-d223f7449a82
Add a new parameter to `WP_Query` called `update_menu_item_cache` that when set to true, primes the caches for linked terms and posts for menu item post objects. This change moves logic
found in `wp_get_nav_menu_items` into a new function called `update_menu_item_cache`. Update the menu item REST API controller, to pass the `update_menu_item_cache` parameter to the
arguments used for the `WP_Query` run to get menu items.
Props furi3r, TimothyBlynJacobs, spacedmonkey, peterwilsoncc, mitogh.
Fixes#55620.
--This line, and those below, will be ignored--
M src/wp-includes/class-wp-query.php
M src/wp-includes/nav-menu.php
M src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php
M tests/phpunit/tests/post/nav-menu.php
git-svn-id: https://develop.svn.wordpress.org/trunk@53504 602fd350-edb4-49c9-b593-d223f7449a82
* Make the descriptions for `update_post_author_caches()` and `update_post_caches()` more specific.
* Move the unit test into its own file, for consistency with `update_post_cache()` tests. This also allows for using shared fixtures in case more tests are added in the future.
Follow-up to [53482].
See #55716.
git-svn-id: https://develop.svn.wordpress.org/trunk@53483 602fd350-edb4-49c9-b593-d223f7449a82
For a call to `WP_Query` or a post REST API request that contains posts from multiple authors, call the `cache_users` function, to ensure that all user data for post authors is primed in
a single database query. This results in far fewer database queries on multiple author sites.
Props spacedmonkey, timothyblynjacobs, peterwilsoncc.
Fixes#55716.
git-svn-id: https://develop.svn.wordpress.org/trunk@53482 602fd350-edb4-49c9-b593-d223f7449a82
This ensures that the methods are recognized by the WordPress Code Reference parser.
Follow-up to [7994], [25567], [27156], [28887], [49672], [52226].
Props dd32, audrasjb.
Fixes#55928.
git-svn-id: https://develop.svn.wordpress.org/trunk@53469 602fd350-edb4-49c9-b593-d223f7449a82
This is a defensive coding measure that aims to reduce confusion. With this change, `$pieces` is explicitly used for the names, and `$clauses` for the values of the clauses.
Follow-up to [52974], [53175], [53370].
Props peterwilsoncc.
See #55699.
git-svn-id: https://develop.svn.wordpress.org/trunk@53375 602fd350-edb4-49c9-b593-d223f7449a82
This addresses a backward compatibility break where `posts_join_request` and other filters were applied, but their results were subsequently discarded and earlier values were used instead.
Follow-up to [52974], [53175].
Props 5um17, johnbillion, SergeyBiryukov.
Fixes#55699.
git-svn-id: https://develop.svn.wordpress.org/trunk@53370 602fd350-edb4-49c9-b593-d223f7449a82
While using reserved PHP keywords as parameter name labels is allowed, in the context of function calls using named parameters in PHP 8.0+, this will easily lead to confusion. To avoid that, it is recommended not to use reserved keywords as function parameter names.
This commit:
* Renames the `$array` parameter to `$query_vars` in `WP_Query::fill_query_vars()`.
* Renames the `$default` parameter to `$default_value` in `WP_Query::get()`.
Follow-up to [52946], [52996], [52997], [52998], [53003], [53014], [53029], [53039], [53116], [53117], [53137], [53174], [53184], [53185], [53192], [53193], [53198], [53203], [53207], [53215], [53216], [53220], [53230], [53232], [53236], [53239], [53240], [53242], [53243], [53245], [53246], [53257], [53269], [53270], [53271], [53272], [53273], [53274], [53275], [53276].
Props jrf, aristath, poena, justinahinon, SergeyBiryukov.
See #55327.
git-svn-id: https://develop.svn.wordpress.org/trunk@53277 602fd350-edb4-49c9-b593-d223f7449a82
This addresses a backward compatibility break where `posts_groupby` and other filters were applied, but their results were subsequently discarded and earlier values were used instead.
Follow-up to [52974].
Props nextend_ramona.
See #54728, #meta6273.
git-svn-id: https://develop.svn.wordpress.org/trunk@53175 602fd350-edb4-49c9-b593-d223f7449a82
Cache queries to the comments table in `WP_Query` for various comments feeds. Only comment IDs are stored for each feeds cache to avoid doubling up caching with each individual comment's cache.
Props spacedmonkey, boonebgorges, pbearne.
Fixes#36904.
git-svn-id: https://develop.svn.wordpress.org/trunk@53065 602fd350-edb4-49c9-b593-d223f7449a82
Ensure that the `posts_per_page` parameter submit to sticky post query matches the number of sticky posts requested.
Follow-up to [52982]
Props Spacedmonkey, peterwilsoncc.
See #36907.
git-svn-id: https://develop.svn.wordpress.org/trunk@52990 602fd350-edb4-49c9-b593-d223f7449a82
Reorder the parameters of the `get_posts()` call for consistency with similar calls elsewhere.
Follow-up to [52982].
See #36907.
git-svn-id: https://develop.svn.wordpress.org/trunk@52985 602fd350-edb4-49c9-b593-d223f7449a82
Ensure that the parameters `update_post_meta_cache`, `update_post_term_cache`, `cache_results`, `suppress_filters` and
`lazy_load_term_meta` that are passed to WP_Query, are also passed down to the secondary query used to get sticky
posts.
Props Spacedmonkey, peterwilsoncc, rehanali, uday17035.
Fixes#36907.
git-svn-id: https://develop.svn.wordpress.org/trunk@52982 602fd350-edb4-49c9-b593-d223f7449a82
This further improves the readability by replacing `implode()` calls with string interpolation.
Follow-up to [52973].
Props jrf.
See #54728.
git-svn-id: https://develop.svn.wordpress.org/trunk@52977 602fd350-edb4-49c9-b593-d223f7449a82
