The `WP_INSTALLING` constant is a flag that WordPress sets in a number of
places, telling the system that options should be fetched directly from the
database instead of from the cache, that WP should not ping wordpress.org for
updates, that the normal "not installed" checks should be bypassed, and so on.
A constant is generally necessary for this purpose, because the flag is
typically set before the WP bootstrap, meaning that WP functions are not yet
available. However, it is possible - notably, during `wpmu_create_blog()` -
for the "installing" flag to be set after WP has already loaded. In these
cases, `WP_INSTALLING` would be set for the remainder of the process, since
there's no way to change a constant once it's defined. This, in turn, polluted
later function calls that ought to have been outside the scope of site
creation, particularly the non-caching of option data. The problem was
particularly evident in the case of the automated tests, where `WP_INSTALLING`
was set the first time a site was created, and remained set for the rest of the
suite.
The new `wp_installing()` function allows developers to fetch the current
installation status (when called without any arguments) or to set the
installation status (when called with a boolean `true` or `false`). Use of
the `WP_INSTALLING` constant is still supported; `wp_installing()` will default
to `true` if the constant is defined during the bootstrap.
Props boonebgorges, jeremyfelt.
See #31130.
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After some discussion, it was decided that Multisite vs single site context can just as easily be derived using available functions like `is_network_admin()`, `get_current_screen()`, etc., rendering the second parameter moot. The hook was introduced in [34796].
Fixes#25360.
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The current list table is passed as a second parameter, `$this`, and can take the form of either a `WP_Users_List_Table` or `WP_MS_Users_List_Table` instance depending on the context in which the filter was evaluated.
Props juliobox for the initial patch.
Fixes#25360.
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If the `$action` type is 'query_plugins' or 'plugin_information', the API will return an object, thus an object should be passed if replacing it. For 'hot_tags' and 'hot_categories', the same logic applies, but with arrays instead.
See #34035.
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`wp_update_plugins()` and `wp_update_themes()` are both hooked into `upgrader_process_complete` with priority 10. But at this stage the caches in `get_plugins()`, `search_theme_directories()`, and `wp_get_themes()` aren't refreshed yet so both functions couldn't fetch any translations for the new plugin/theme.
To reset the caches `wp_clean_themes_cache()` and `wp_clean_plugins_cache()` are now hooked into `upgrader_process_complete` with priority 9.
Fixes#34029.
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Also, add a "Edit Comment" legend before the Quick Edit form to pair it with "Reply to Comment" and "Add new Comment" and move the Name, Email, and URL fields after the Comment textarea.
Props joedolson, afercia.
Fixes#33757.
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The call to `flock()` is an exclusive advisory lock, which in my testing only PHP respects (apache continues to read it).
Not all filesystems support locking (remote NFS mounts for example) so this offers minimal benefit to those platforms, but offers much better protection against file corruption on systems which do support it.
The call is blocking, so a second process will wait for the first to complete before writing if supported.
See #31767
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This fixes issues where SSH2 with chrooted environments runs into a `Unable to locate WordPress Content directory (wp-content).` error.
The workaround is to simply list the contents of the `/./` directory instead of `/`.
Fixes#33919
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This change causes it to list the parent directories files, and assets that the node exists within the returned listing, this is a little more compatible than relying upon the FTP server to correctly filter the returned resultset to the specific file/node being requested.
Fixes#28013
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Add 2 methods to `WP_List_Table`, `->get_orderby()` and `->get_order()`. Override the methods in `WP_Posts_List_Table`.
`WP_Posts_List_Table` calls `wp_edit_posts_query()` in `->prepare_items()` which is a wrapper for `wp()`. As such, we can obtain `orderby` and `order` via `get_query_var()`, instead of the URL.
Fixes#25493.
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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.
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Previously there were two persistent "View Post" links on an edit screen: next to the permalink and in the toolbar. This would then become three links after a post was published or updated, as a link is also included in the admin notice. This is a lot of redundancy and visual noise for a flow that is not your primary action upon starting to edit a post. The "View Post" link next to the sample permalink was particularly bad because it is styled like a button, but unlike a button, does not keep you on the current screen.
Because the permalink is now linked, there is no highlighted slug that you can click to edit, but rather just the "Edit" button.
props scribu, lessbloat, sabreuse, SergeyBiryukov, DrewAPicture, helen.
see #18306.
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* Adds a matrix-like data table demonstrating which arguments are available for the different `$action` types
* Adjusts the return types to accommodate an `array` for the 'hot_tags' `$action` choice
Props ocean90.
See #34035.
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Adds:
* A hash notation with descriptions for all accepted arguments
* A matrix-like data table demonstrating which arguments are available for the different `$action` types
* A better summary and description with linked hooks
* An improved return description with a link to external information
Props ocean90.
See #34036.
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Changing the `show_on_front` option back to "posts" also resets the `page_on_front` and `page_for_posts` options when updating via the Reading settings page. In the Customizer, however, this is not the case as these other options remain unchanged. This change accounts for this difference in behavior.
Fixes#34004.
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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.
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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.
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Adds a new table to the database schema (`wp_termmeta`), and a set of
`*_term_meta()` API functions. `get_terms()` and `wp_get_object_terms()`
now also support 'meta_query' parameters, with syntax identical to other
uses of `WP_Meta_Query`.
When fetching terms via `get_terms()` or `wp_get_object_terms()`, metadata for
matched terms is preloaded into the cache by default. Disable this behavior
by setting the new `$update_term_meta_cache` paramater to `false`.
To maximize performance, within `WP_Query` loops, the termmeta cache is *not*
primed by default. Instead, we use a lazy-loading technique: metadata for all
terms belonging to posts in the loop is loaded into the cache the first time
that `get_term_meta()` is called within the loop.
Props boonebgorges, sirzooro.
See #10142.
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Standardizes summaries and tags for the following classes:
* `WP_Upgrader`
* `Plugin_Upgrader`
* `Theme_Upgrader`
* `Language_Pack_Upgrader`
* `Core_Upgrader`
* `File_Upload_Upgrader`
* `WP_Automatic_Updater`
See #32246.
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The `comment_date_gmt` field of the `wp_comments` table is indexed, which makes
`WHERE` matches against the field much faster than against the unindexed
`comment_date`. For bulk operations like data import, the speed difference can
be meaningful.
We continue to default to 'blog' for `$timezone`, to preserve compatibility
with existing uses.
Props apokalyptik.
Fixes#33871.
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These colored backgrounds can be accessed by adding the `.notice-alt` class to a notice.
There is also now a large version when using the `.notice-large` class, and a `.notice-title` class that is appropriate for headline text within a large notice.
props paulwilde, hugobaeta, melchoyce.
fixes#32244.
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For the last 10 years, my-hacks has been deprecated and has been throwing a deprecation notice. For the last six years, you haven't been able to enable my-hacks.php in the admin UI. That should be enough time to give developers notice. Plugins and themes seem like they might have staying power.
Fixes#33741
Props bobbingwide
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Related to the toolbar view, remove the `wp_admin_canonical_url()` action in grid mode. Grid views that result from links from the list table view are lenses into the library and need to be indicated as such vs being a full attachment query.
Fixes#29744.
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When a new user is created in various places throughout the interface,
notifications are sent to the site admin and the new user. Previously, these
notifications were fired through direct calls to `wp_new_user_notification()`,
making it difficult to stop or modify the messages.
This changeset introduces a number of new action hooks in place of direct calls
to `wp_new_user_notification()`, and hooks the new wrapper function
`wp_send_new_user_notifications()` to these hooks.
Props dshanske, thomaswm, boonebgorges.
Fixes#33587.
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