[34583] modified comment queries so that all post fields are no longer loaded
by default. Instead, they are loaded only when requested on individual comment
objects. This changeset improves that flow:
* `WP_Comment` magic methods `__isset()` and `__get()` should only load the post when a post field is being requested.
* The new `update_comment_post_cache` argument for `WP_Comment_Query` allows developers to specify that, when comments are queried, all of the posts matching those comments should be loaded into cache with a single DB hit. This parameter defaults to false, since typical comment queries are linked to a single post.
Fixes#27571.
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Also fixes up some formatting in the DocBlock summary and description, and adds a link to the function reference, where supplementary information on return object structs and formatting will live.
Props ocean90.
Fixes#34035.
Built from https://develop.svn.wordpress.org/trunk@34596
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The Menu Customizer feature includes a performance technique whereby the controls for nav menu items are only embedded into the DOM once the containing menu section is expanded. This commit implements the same DOM deferral for widgets but goes a step further than just embedding the controls once the widget area's Customizer section is expanded: it also defers the embedding of the widget control's form until the widget is expanded, at which point the `widget-added` event also fires to allow any additional widget initialization to be done. The deferred DOM embedding can speed up initial load time by 10x or more. This DOM deferral also yields a reduction in overall memory usage in the browser process.
Includes changes to `wp_widget_control()` to facilitate separating out the widget form from the surrounding accordion container; also includes unit tests for this previously-untested function. Also included are initial QUnit tests (finally) for widgets in the Customizer.
Fixes#33901.
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Previously, the 'page_comments' toggle allowed users to disable comment
pagination. This toggle was only superficial, however. Even with
'page_comments' turned on, `comments_template()` loaded all of a post's
comments into memory, and passed them to `wp_list_comments()` and
`Walker_Comment`, the latter of which produced markup for only the
current page of comments. In other words, it was possible to enable
'page_comments', thereby showing only a subset of a post's comments on a given
page, but all comments continued to be loaded in the background. This technique
scaled poorly. Posts with hundreds or thousands of comments would load slowly,
or not at all, even when the 'comments_per_page' setting was set to a
reasonable number.
Recent changesets have addressed this problem through more efficient tree-
walking, better descendant caching, and more selective queries for top-level
post comments. The current changeset completes the project by addressing the
root issue: that loading a post causes all of its comments to be loaded too.
Here's the breakdown:
* Comment pagination is now forced. Setting 'page_comments' to false leads to evil things when you have many comments. If you want to avoid pagination, set 'comments_per_page' to something high.
* The 'page_comments' setting has been expunged from options-discussion.php, and from places in the codebase where it was referenced. For plugins relying on 'page_comments', we now force the value to `true` with a `pre_option` filter.
* `comments_template()` now queries for an appropriately small number of comments. Usually, this means the `comments_per_page` value.
* To preserve the current (odd) behavior for comment pagination links, some unholy hacks have been inserted into `comments_template()`. The ugliness is insulated in this function for backward compatibility and to minimize collateral damage. A side-effect is that, for certain settings of 'default_comments_page', up to 2x the value of `comments_per_page` might be fetched at a time.
* In support of these changes, a `$format` parameter has been added to `WP_Comment::get_children()`. This param allows you to request a flattened array of comment children, suitable for feeding into `Walker_Comment`.
* `WP_Query` loops are now informed about total available comment counts and comment pages by the `WP_Comment_Query` (`found_comments`, `max_num_pages`), instead of by `Walker_Comment`.
Aside from radical performance improvements in the case of a post with many
comments, this changeset fixes a bug that caused the first page of comments to
be partial (`found_comments` % `comments_per_page`), rather than the last, as
you'd expect.
Props boonebgorges, wonderboymusic.
Fixes#8071.
Built from https://develop.svn.wordpress.org/trunk@34561
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* Don't allow comments to be created for posts that have `comment_status` set to `'closed'`
* Set some magic props on `WP_User` to vars before passing them to `wp_xmlrpc_server::escape()`
Props wonderboymusic, jesin.
Fixes#27471.
Built from https://develop.svn.wordpress.org/trunk@34559
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Shortlinks had their day in the popular usage sun before all these services moved to their own shorteners and running your own custom one became a lot easier. Shortlinks are still useful in some contexts, such as analytics or when links need to be shared verbally or copied down by hand.
If any filters are hooked onto `pre_get_shortlink` or `get_shortlink` and produce a non-empty value (with an exception described below), the button will magically reappear. This allows any custom shortlinks to keep the button without hiccups.
If you're in need of the default shortlinks, the fastest way to reenable them is `add_filter( 'pre_get_shortlink', '__return_false' )`. Note that it must return false in order to continue on to the rest of `wp_get_shortlink()`.
props grvrulz for the initial patch.
fixes#33495.
Built from https://develop.svn.wordpress.org/trunk@34556
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This is hopefully the final attempt at adding notifications to the #core channel on Slack. By default, Travis spams the channel. In order to cut that down a bit, notifications are set as follows:
- On Failure: Always (If the tests fail, the world needs to know)
- On Success: Change (this means that the first green run after a red run aka, the world is happy again)
- On Start: Never (Travis runs every time there is a commit. No need for a notification)
Props Netweb, samuelsidler
Fixes#30755
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Scott Taylor
Aaron Jorbin
Boone Gorges
Dominik Schilling
John Blackbourn
Drew Jaynes
Sergey Biryukov
Weston Ruter
Helen Hou-Sandí