The implementation of `meta_query` orderby introduced in [31312] put clause
identifiers into a 'name' parameter of the clause. For greater clarity, this
changeset updates the syntax to use the associative array key used when
defining `meta_query` parameters, instead of the 'name' parameter.
Props Funkatronic, DrewAPicture.
Fixes#31045.
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`WP_Meta_Query` clauses now support a 'name' parameter. When building a
`WP_Query` object, the value of 'orderby' can reference this 'name', so that
it's possible to order by any clause in a meta_query, not just the first one
(as when using 'orderby=meta_value'). This improvement also makes it possible
to order by multiple meta query clauses (or by any other eligible field plus
a meta query clause), using the array syntax for 'orderby' introduced in [29027].
Props Funkatronic, boonebgorges.
Fixes#31045.
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Per our inline documentation standards, no further use of the `@uses` tag is recommended as used and used-by relationships can be derived through other means. This removes most uses of the tag in core documentation, with remaining tags to be converted to `@global` or `@see` as they apply.
Fixes#30191.
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`setup_postdata()` is responsible for setting a number of global variables
that are used for post pagination (`$pages`, `$page`, `$nextpage`) and the
generation of post excerpts (`$more`). These variables should be sensitive to
the currently running instance of `WP_Query` - rather than the main query -
so that these features work properly inside of secondary `WP_Query` loops.
This changeset moves the logic of `setup_postdata()` into a method on `WP_Query`,
and converts `setup_postdata()` to a wrapper.
Props boonebgorges, wonderboymusic.
See #25349.
Fixes#9256, #20904.
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Previously, tax query arguments could be joined by a single AND or OR relation.
Now, these queries can be arbitrarily nested, allowing clauses to be linked
together with multiple relations.
In a few places, WP_Query runs through a list of clauses in a tax_query in order
to set certain query vars for backward compatibility. The necessary changes have
been made to WP_Query to support this feature with the new complex structure of
tax_query. Unit tests are included for these backward compatibility fixes.
Unit tests for the new nesting syntax are included.
Props boonebgorges.
Fixes#29718. See #29738.
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When using legacy `meta_key`, `meta_value`, etc. arguments in `WP_Query`,
they're converted into the first clause of a `meta_query`. By using that
clause instead of the original arguments, we make sure that behavior is
consistent between the two available formats.
props boonebgorges.
fixes#16814.
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The shortcode callbacks for `gallery` and `playlist` check for `'RAND' == $atts['order']`, which isn't a valid value for `order`. Remove those checks and update the docs.
In `WP_Query`, if the value of `orderby` is `rand`, `order` is irrelevant and should be unset.
Adds unit tests.
Fixes#29629.
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* Since `orderby` in `WP_Query` can accept space-delimited sets, yet only one `order` value: when multiple values are passed (and `DESC` is the order), the default sort order `ASC` is being applied to all values before the last in the set.
* There is a unit test that sporadically fails since 3.6 in `tests/post/revision` due to multiple posts having the same `post_date` from being added so rapidly
* When ordering revisions in `wp_get_post_revisions()`, order by `post_date ID`
* Change the `order` value in `wp_get_post_revisions()` to `ASC`. This will produce SQL like: `ORDER BY $wpdb->posts.post_date ASC, $wpdb->posts.ID ASC`. Previously, this would have produced SQL like: `ORDER BY $wpdb->posts.post_date DESC`, and with the addition of ` ID`: `ORDER BY $wpdb->posts.post_date ASC, $wpdb->posts.ID DESC`. Clearly, wrong. The original SQL produced: `ORDER BY $wpdb->posts.post_date DESC`. As such, return the reversions in reverse order using `array_reverse()`. Not doing so would break "Preview Changes."
* Add unit tests to assert that all of this works.
* All existing unit tests pass with the change to ordering multiple `orderby`s in `WP_Query`.
* In the future, we should support independent `order` for each `orderby`, see #17065.
Props SergeyBiryukov, wonderboymusic.
Fixes#26042.
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