This commit fixes the layout of the sections of the product page in the admin that display variations and attributes. It was broken since WP 5.5 was releases. This version of WP removed a CSS rule that WooCommerce uses (see 22d0cd6c96 (diff-fc8970b78a0739bd367f17c3a8e552e6L1993)). So this commit simply adds this rule back.
See #27326
The new query fixes a bug where variations were being counted twice:
if a product was included in both the queries then it would be counted
differently and added; e.g. when a product had two variations,
one with "Any" attribute and other with a attribute that has a value.
The new query also optimizes performance, so that filter conditions
can be improved and better indexes can be used.
For performance reasons the query is split in two: one for simple
products and variations with a concrete attribute value, and another
one for variations having "Any..." as the attribute value.
Previously, we were using the `$formatted_meta_data` to build the final array.
However, this does not consider the fact that
`WC_Order_Item->get_formatted_meta_data` can exclude `meta_data` from the
result. There would be less `meta_data` objects return than the previous
implementation.
This fixes the issue by using the `$data['meta_data']` value as the main list of
meta data and only using `$formatted_meta_data` to optionally apply the
`display_key` and `display_value` properties.
The new query doesn't need empty attribute entries in the meta table,
therefore the code that generates them and the migration to backfill
the missing existing ones have been removed.
When set_attributes is used on WC_Product to remove existing attributes
the wc_product_attribute_uasort_comparison ends up being called
with a null argument, and this breaks tests in PHP 7.4 since
null is used as an array. This commit modifies the function so that
if null is passed no array access is attempted.
Right now the filter by attributes widget counts available variations
(for variation products). This is confusing since the counter shows
numbers that are higher than the actual count of products displayed.
This commit changes the query used by the widget so that instead
of counting variations it returns the parent product ids, and then
counts the distinct values. This also covers the case of products
where some of the variations have concrete values and some have
"Any..." values.
KoolPal
Rodrigo Primo
Nestor Soriano
James Collins
Julia Amosova
Christopher Allford
Rebecca Scott
jonathansadowski
Jonathan Sadowski
Shiki
pjv
GREYS
Julià Mestieri
Kevin Hagerty
Claudio Sanches
Ron Rennick