This commit fixes an issue where some magic `__isset()` methods were potentially returning `void` (if the prop is not in an allow-listed array of fields) instead of an explicit boolean `false`.
Addressed methods:
* `WP_Comment::__isset()`
* `WP_Query::__isset()`
Follow-up to [28523], [31151], [34583], [34599].
Props justlevine.
See #52217.
Built from https://develop.svn.wordpress.org/trunk@59337
git-svn-id: http://core.svn.wordpress.org/trunk@58723 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add more context to the `split_the_query` filter by adding two new parameters: '$old_request' and '$clauses'. This enriches the filter with additional information about the SQL query before the query is run, enabling developers to have more context to help decide if a query should be split.
Props spacedmonkey, shailu25, rcorrales, tillkruess.
Fixes#59514.
Built from https://develop.svn.wordpress.org/trunk@58180
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Query caching in `WP_Query` was added in [53941]. When this functionality was added to the `WP_Query` class, a number of edge cases were missed that would result in redundant duplicate queries. It was possible to pass parameters to `WP_Query` that would be different but would result in the same database query being generated. As the cache key is generated from a mixture of query arguments and the SQL query, this resulted in different cache keys for the same database query, resulting in unnecessary duplicate queries. In this change, the logic in the `generate_cache_key` method has been improved to ensure reuse of existing caches. The following edge cases have been considered:
- Passing `post_type` as an empty string.
- Passing `post_type` as the string `any`.
- Passing `post_type` as array vs. string.
- Passing `post_type` as an array in a different order.
- Not passing `orderby`.
- Passing `post_status` as an array vs. string.
- Passing `post_status` as an array in a different order.
This change also fixes an issue where the old SQL query would not match, as the queries had different whitespaces.
Props spacedmonkey, joemcgill, pbearne, peterwilsoncc, rajinsharwar, mukesh27, thekt12, huzaifaalmesbah, rodionov201.
Fixes#59442.
Built from https://develop.svn.wordpress.org/trunk@58122
git-svn-id: http://core.svn.wordpress.org/trunk@57587 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Unintended leading whitespace at the beginning of a raw MySQL query led to unexpected behavior such as broken pagination. Eliminating said whitespace avoids that.
Adds unit tests to prevent regressions.
Props wpfed, swissspidy, ironprogrammer, tadamarketing, afercia.
Fixes#56841.
Built from https://develop.svn.wordpress.org/trunk@57750
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This changeset introduces two functions:
* `wp_is_serving_rest_request()` returns a boolean for whether WordPress is serving an actual REST API request.
* `wp_is_rest_endpoint()` returns a boolean for whether a WordPress REST API endpoint is currently being used. While this is always the case if `wp_is_serving_rest_request()` returns `true`, the function additionally covers the scenario of internal REST API requests, i.e. where WordPress calls a REST API endpoint within the same request.
Both functions should only be used after the `parse_request` action.
All relevant manual checks have been adjusted to use one of the new functions, depending on the use-case. They were all using the same constant check so far, while in fact some of them were intending to check for an actual REST API request while others were intending to check for REST endpoint usage.
A new filter `wp_is_rest_endpoint` can be used to alter the return value of the `wp_is_rest_endpoint()` function.
Props lots.0.logs, TimothyBlynJacobs, flixos90, joehoyle, peterwilsoncc, swissspidy, SergeyBiryukov, pento, mikejolley, iandunn, hellofromTonya, Cybr, petitphp.
Fixes#42061.
Built from https://develop.svn.wordpress.org/trunk@57312
git-svn-id: http://core.svn.wordpress.org/trunk@56818 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Move the cache of post parent IDs from the dedicated group `post_parents` to `posts`. This maintains backward compatibility for clearing all post object related data by calling `wp_cache_flush_group( 'posts' )`.
Post parent IDs are now cached with with the prefix `post_parent:` in the `posts` group.
Follow up to [56763].
Props spacedmonkey, joemcgill, peterwilsoncc.
See #59188.
Built from https://develop.svn.wordpress.org/trunk@56925
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The `page` query var only accepts a scalar value and passes the value through functions that assume a scalar value.
Adding an extra guard condition does not affect its functionality but does avoid a PHP fatal error for `trim()` when a non-scalar value such as an array is passed.
Follow-up to [2535], [53891].
Props brookedot, rlmc, mukesh27, SergeyBiryukov.
Fixes#56558.
Built from https://develop.svn.wordpress.org/trunk@56815
git-svn-id: http://core.svn.wordpress.org/trunk@56327 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Change the name of `_prime_post_parents_caches()` to `_prime_post_parent_id_caches()` to make it clearer only the parent post ID is cached rather than the entire post parent object.
Follow up to [56763].
Props spacedmonkey, joemcgill, peterwilsoncc.
See #59188.
Built from https://develop.svn.wordpress.org/trunk@56811
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In [53941], the addition of query caching to `WP_Query` brought about an unintended issue when querying for fields equal to id=>parent. Specifically, on websites with object caching enabled and a substantial number of pages, the second run of this query triggered the `_prime_post_caches` function for id=>parent. This led to the unnecessary priming of post, meta, and term caches, even when only id and parent information were requested.
This commit addresses this issue by introducing a new function, `_prime_post_parents_caches`, which primes a dedicated cache for post parents. This cache is primed during the initial query execution. Subsequently, the `wp_cache_get_multiple` function is employed to retrieve all post parent data in a single object cache request, optimizing performance.
Additionally, this commit extends the coverage of existing unit tests to ensure the reliability of the changes.
Props kevinfodness, joemcgill, peterwilsoncc, LinSoftware, thekt12, spacedmonkey.
Fixes#59188
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The `WP_Query` class enables developers to customize queries using filters like `posts_fields_request`, `posts_request`, and `the_posts`, which can modify both the queried fields and retrieved post objects. In some cases with these filters, incomplete or invalid post objects lacking essential data may arise. To address this, if any of these filters are active during a query, the `get_posts` method now avoids caching post objects with the usual `update_post_caches` function call, opting for a call to `_prime_post_caches` instead. This may occasionally trigger new database queries to prime the post data cache. While this enhancement may result in rare additional database queries, it ensures that invalid post objects aren't cached, prioritizing data consistency and integrity in filtered query scenarios.
Props saulirajala, spacedmonkey, flixos90, mukesh27, peterwilsoncc.
Fixes#58599.
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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.
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`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.
Built from https://develop.svn.wordpress.org/trunk@56019
git-svn-id: http://core.svn.wordpress.org/trunk@55531 1a063a9b-81f0-0310-95a4-ce76da25c4cd
`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.
Built from https://develop.svn.wordpress.org/trunk@55988
git-svn-id: http://core.svn.wordpress.org/trunk@55500 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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.
Built from https://develop.svn.wordpress.org/trunk@55855
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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.
Built from https://develop.svn.wordpress.org/trunk@55847
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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.
Built from https://develop.svn.wordpress.org/trunk@55749
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`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.
Built from https://develop.svn.wordpress.org/trunk@55703
git-svn-id: http://core.svn.wordpress.org/trunk@55215 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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.
Built from https://develop.svn.wordpress.org/trunk@55558
git-svn-id: http://core.svn.wordpress.org/trunk@55070 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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.
Built from https://develop.svn.wordpress.org/trunk@55526
git-svn-id: http://core.svn.wordpress.org/trunk@55048 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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.
Built from https://develop.svn.wordpress.org/trunk@55252
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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.
Built from https://develop.svn.wordpress.org/trunk@55248
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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.
Built from https://develop.svn.wordpress.org/trunk@54962
git-svn-id: http://core.svn.wordpress.org/trunk@54514 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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.
Built from https://develop.svn.wordpress.org/trunk@54771
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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.
Built from https://develop.svn.wordpress.org/trunk@54768
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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.
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git-svn-id: http://core.svn.wordpress.org/trunk@54237 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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.
Built from https://develop.svn.wordpress.org/trunk@54634
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`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.
Built from https://develop.svn.wordpress.org/trunk@54496
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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.
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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.
Built from https://develop.svn.wordpress.org/trunk@54133
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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.
Built from https://develop.svn.wordpress.org/trunk@54111
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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.
Built from https://develop.svn.wordpress.org/trunk@53941
git-svn-id: http://core.svn.wordpress.org/trunk@53500 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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
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* 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.
Built from https://develop.svn.wordpress.org/trunk@53508
git-svn-id: http://core.svn.wordpress.org/trunk@53097 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Sergey Biryukov
spacedmonkey
audrasjb
Pascal Birchler
Felix Arntz
Peter Wilson
Weston Ruter
John Blackbourn