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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* Introduce `is_post_type_viewable( $post_type_object )`
* Separate the HTML bits from the translatable bits in the `post` messages array in `edit-form-advanced.php`
* Don't show certain UI pieces when a post is not viewable on the front end
When a custom post type item is not viewable on the front end, we don't want to show links to View it (on the front end) all over the admin. We also want to hide the Preview link, et al. We also want our admin messages to not contain said links.
Custom post types with `public_queryable` set to `false` are not viewable on the front end.
`'page'` is viewable on the front end, but `'page'` is a `_builtin` type, and `public_queryable` is set to `false` when it is registered - see `WP::parse_request()` for when `public_queryable` gets used.
This is confusing, but also somewhat straightforward: to determine if a post type is viewable on the front end, we can check one way for `_builtin => true` and another way for `_builtin => false`:
`$post_type->publicly_queryable || ( $post_type->_builtin && $post_type->public )`
If a post type is `publicly_queryable`, it's viewable. If that value is `false`, it is viewable if it's a `_builtin` type that is also `public`.
I am in search of edge cases, so this shall land.
Props wonderboymusic, DrewAPicture.
See #17609.
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* In `->handle_row_actions()`, bail immediately if `$primary` and `$column_name` do not match. Saves us a nesting level and avoids declaring code that is unusable.
* In `WP_List_Table::single_row_columns()`, allow `_column_{$name}` to be called dynamically by core to avoid having to override the entirety of `->single_row_columns()` in `WP_MS_Users_List_Table` and `WP_Posts_List_Table`
* In `WP_MS_Sites_List_Table`, `id` is not a column.
Props wonderboymusic, paulwilde.
Fixes#29881.
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Since `WP_List_Table::get_default_primary_column()` can be overridden in a subclass and columns can be further filtered, it is possible to end up with a primary column that no longer exists. This is particularly evident in list tables for custom post types that have been altered via filter.
props ocean90.
fixes#32996.
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Instead of truncating columns, the data that's already in the markup can now be toggled into view. Only seems appropriate to celebrate four years of contributing by finally doing the first thing I ever mocked up.
Known issues / concerns:
* Custom list tables that don't define a primary column will show nothing at all. These are not extremely common, as `WP_List_Table` isn't really recommended for plugin consumption, but it happens. We need to come up with some kind of fallback.
* Some visual elements, particularly whitespace, could use refining.
* Needs a11y review.
* Touch performance on iOS feels sluggish - is there anything we can do about that?
* Would this be better accordion-style (only one expanded at a time)?
* Is `wp_strip_all_tags()` good enough for column titles that have HTML in them? It's essentially a workaround for the fact that core's comments column does that for the icon, which maybe it shouldn't. Perhaps worth another ticket, as a markup change would be fairly independent.
* Visual hierarchy is not great when expanded (also worthy of another ticket).
* Quick edit now becomes noticeably more annoying to cancel out of, as you have to scroll all the way down and you lose your position from before it was opened. Again, worthy of another ticket.
props Michael Arestad, helen.
see #32395.
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Break apart the giant `switch` statement in `->single_row()` into `column_{$column_name}` methods.
To maintain the `->single_row_columns( $item )` interface, add a property, `$current_level`, to allow access to `$level`.
This list table class is now easier to subclass.
Props joehoyle, wonderboymusic.
See #29881.
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This becomes the column that contains the row actions, and allows for a more flexibility, particularly with custom post types and list tables. To (re)define the primary column, use the `list_table_primary_column` filter, which receives the column name and the screen ID as arguments.
props stephdau, DaveAl, jesin.
see #25408.
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John Blackbourn
Scott Taylor
Sergey Biryukov
Drew Jaynes
Helen Hou-Sandí
Konstantin Obenland
Dominik Schilling