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.
git-svn-id: https://develop.svn.wordpress.org/trunk@36566 602fd350-edb4-49c9-b593-d223f7449a82
Instead of returning a value for each of the related table column lengths, return an array of all of the column lengths used in the comment form.
Better fallback handling, where each field falls back to the expected max_length instead of an arbitrary number.
Props azaozz.
Fixes#10377.
git-svn-id: https://develop.svn.wordpress.org/trunk@36514 602fd350-edb4-49c9-b593-d223f7449a82
When a comment is removed from the object cache, the `clean_comment_cache` action is now fired. This provides plugin and theme developers a chance to perform secondary cache invalidation as needed.
Props spacedmonkey.
Fixes#35610.
git-svn-id: https://develop.svn.wordpress.org/trunk@36405 602fd350-edb4-49c9-b593-d223f7449a82
This allows filtering a post's comment count before it is queried and updated in the database.
Props peterwilsoncc for initial patch.
Fixes#35060.
git-svn-id: https://develop.svn.wordpress.org/trunk@36318 602fd350-edb4-49c9-b593-d223f7449a82
Added hardcoded maxlength attributes on the author, author_email, author_url, and comment_field input markup. These can be modified via the comment_form_defaults filter. Added logic in wp_handle_comment_submission() to return a WP_Error when the comment_author, comment_author_url, or comment_content values exceed the max length of their columns. Introduces wp_get_comment_column_max_length() which returns the max column length for a given column name, and is filterable. Unit tests included for the error conditions in wp_handle_comment_submission()
Fixes#10377.
Props westonruter rachelbaker.
git-svn-id: https://develop.svn.wordpress.org/trunk@36272 602fd350-edb4-49c9-b593-d223f7449a82
Posts that are trashed shouldn't trigger post author notifications. Adds unit tests to enforce this.
Props scottbrownconsulting, peterwilsoncc, swissspidy
Fixes#35006
git-svn-id: https://develop.svn.wordpress.org/trunk@36119 602fd350-edb4-49c9-b593-d223f7449a82
In `wp_update_comment()` only check if the given `comment_post_ID` is valid if it isn’t `0`. This allows comments that were created programmatically via `wp_insert_comment()` without the (optional) `comment_post_ID` parameter to be edited.
Props subharanjan for the initial patch.
Fixes#34954
git-svn-id: https://develop.svn.wordpress.org/trunk@35853 602fd350-edb4-49c9-b593-d223f7449a82
Also adds inline DocBlock for the `require_once()` calls that now bring in the `WP_Comment` and `WP_Comment_Query` classes, as well as core comments functionality.
See #33413. See #33701.
git-svn-id: https://develop.svn.wordpress.org/trunk@33900 602fd350-edb4-49c9-b593-d223f7449a82
* Takes inspiration from `WP_Post` and adds sanity to comment caching.
* Clarifies when the current global value for `$comment` is returned. The current implementation in `get_comment()` introduces side effects and an occasion stale global value for `$comment` when comment caches are cleaned.
* Strongly-types `@param` docs
* This class is marked `final` for now
Props wonderboymusic, nacin.
See #32619.
git-svn-id: https://develop.svn.wordpress.org/trunk@33891 602fd350-edb4-49c9-b593-d223f7449a82
Creates:
`class-wp-comment-query.php`
`comment-functions.php`
`comment.php` contains only top-level code. Class file only contains the class. Functions file only contains functions.
See #33413.
git-svn-id: https://develop.svn.wordpress.org/trunk@33750 602fd350-edb4-49c9-b593-d223f7449a82
[31467] included a change that involved generating meta_query SQL before the
`pre_get_comments` hook, with the result that `pre_get_comments` callbacks were
no longer able to modify comment meta queries. We fix the problem by moving the
SQL generation to after the hook.
This changeset also includes a second call to `meta_query->parse_query_vars()`,
to ensure that modifications to metadata-related query vars (such as `meta_key`
and `meta_value`) performed in `pre_get_comments` callbacks have the expected
effect on the comment query.
Fixes#32762.
git-svn-id: https://develop.svn.wordpress.org/trunk@32911 602fd350-edb4-49c9-b593-d223f7449a82
Core style dictates that the default arguments should be documented in the same function or method where they are defined.
See [31793].
Fixes#24826.
git-svn-id: https://develop.svn.wordpress.org/trunk@31795 602fd350-edb4-49c9-b593-d223f7449a82
