GC_Terms_List_Table
最后更新于：2021-11-26 01:25:03
GC_Terms_List_TableCore class used to implement displaying terms in a list table.
源文件
文件: gc-admin/includes/class-gc-terms-list-table.php
class GC_Terms_List_Table extends GC_List_Table {
public $callback_args;
private $level;
/**
* Constructor.
*
* @since 3.1.0
*
* @see GC_List_Table::__construct() for more information on default arguments.
*
* @global string $post_type
* @global string $taxonomy
* @global string $action
* @global object $tax
*
* @param array $args An associative array of arguments.
*/
public function __construct( $args = array() ) {
global $post_type, $taxonomy, $action, $tax;
parent::__construct(
array(
'plural' => 'tags',
'singular' => 'tag',
'screen' => isset( $args['screen'] ) ? $args['screen'] : null,
)
);
$action = $this->screen->action;
$post_type = $this->screen->post_type;
$taxonomy = $this->screen->taxonomy;
if ( empty( $taxonomy ) ) {
$taxonomy = 'post_tag';
}
if ( ! taxonomy_exists( $taxonomy ) ) {
gc_die( __( 'Invalid taxonomy.' ) );
}
$tax = get_taxonomy( $taxonomy );
// @todo Still needed? Maybe just the show_ui part.
if ( empty( $post_type ) || ! in_array( $post_type, get_post_types( array( 'show_ui' => true ) ), true ) ) {
$post_type = 'post';
}
}
/**
* @return bool
*/
public function ajax_user_can() {
return current_user_can( get_taxonomy( $this->screen->taxonomy )->cap->manage_terms );
}
/**
*/
public function prepare_items() {
$tags_per_page = $this->get_items_per_page( 'edit_' . $this->screen->taxonomy . '_per_page' );
if ( 'post_tag' === $this->screen->taxonomy ) {
/**
* Filters the number of terms displayed per page for the Tags list table.
*
* @since 2.8.0
*
* @param int $tags_per_page Number of tags to be displayed. Default 20.
*/
$tags_per_page = apply_filters( 'edit_tags_per_page', $tags_per_page );
/**
* Filters the number of terms displayed per page for the Tags list table.
*
* @since 2.7.0
* @deprecated 2.8.0 Use {@see 'edit_tags_per_page'} instead.
*
* @param int $tags_per_page Number of tags to be displayed. Default 20.
*/
$tags_per_page = apply_filters_deprecated( 'tagsperpage', array( $tags_per_page ), '2.8.0', 'edit_tags_per_page' );
} elseif ( 'category' === $this->screen->taxonomy ) {
/**
* Filters the number of terms displayed per page for the Categories list table.
*
* @since 2.8.0
*
* @param int $tags_per_page Number of categories to be displayed. Default 20.
*/
$tags_per_page = apply_filters( 'edit_categories_per_page', $tags_per_page );
}
$search = ! empty( $_REQUEST['s'] ) ? trim( gc_unslash( $_REQUEST['s'] ) ) : '';
$args = array(
'search' => $search,
'page' => $this->get_pagenum(),
'number' => $tags_per_page,
);
if ( ! empty( $_REQUEST['orderby'] ) ) {
$args['orderby'] = trim( gc_unslash( $_REQUEST['orderby'] ) );
}
if ( ! empty( $_REQUEST['order'] ) ) {
$args['order'] = trim( gc_unslash( $_REQUEST['order'] ) );
}
$this->callback_args = $args;
$this->set_pagination_args(
array(
'total_items' => gc_count_terms(
array(
'taxonomy' => $this->screen->taxonomy,
'search' => $search,
)
),
'per_page' => $tags_per_page,
)
);
}
/**
* @return bool
*/
public function has_items() {
// @todo Populate $this->items in prepare_items().
return true;
}
/**
*/
public function no_items() {
echo get_taxonomy( $this->screen->taxonomy )->labels->not_found;
}
/**
* @return array
*/
protected function get_bulk_actions() {
$actions = array();
if ( current_user_can( get_taxonomy( $this->screen->taxonomy )->cap->delete_terms ) ) {
$actions['delete'] = __( 'Delete' );
}
return $actions;
}
/**
* @return string
*/
public function current_action() {
if ( isset( $_REQUEST['action'] ) && isset( $_REQUEST['delete_tags'] ) && 'delete' === $_REQUEST['action'] ) {
return 'bulk-delete';
}
return parent::current_action();
}
/**
* @return array
*/
public function get_columns() {
$columns = array(
'cb' => '<input type="checkbox" />',
'name' => _x( 'Name', 'term name' ),
'description' => __( 'Description' ),
'slug' => __( 'Slug' ),
);
if ( 'link_category' === $this->screen->taxonomy ) {
$columns['links'] = __( 'Links' );
} else {
$columns['posts'] = _x( 'Count', 'Number/count of items' );
}
return $columns;
}
/**
* @return array
*/
protected function get_sortable_columns() {
return array(
'name' => 'name',
'description' => 'description',
'slug' => 'slug',
'posts' => 'count',
'links' => 'count',
);
}
/**
*/
public function display_rows_or_placeholder() {
$taxonomy = $this->screen->taxonomy;
$args = gc_parse_args(
$this->callback_args,
array(
'taxonomy' => $taxonomy,
'page' => 1,
'number' => 20,
'search' => '',
'hide_empty' => 0,
)
);
$page = $args['page'];
// Set variable because $args['number'] can be subsequently overridden.
$number = $args['number'];
$offset = ( $page - 1 ) * $number;
$args['offset'] = $offset;
// Convert it to table rows.
$count = 0;
if ( is_taxonomy_hierarchical( $taxonomy ) && ! isset( $args['orderby'] ) ) {
// We'll need the full set of terms then.
$args['number'] = 0;
$args['offset'] = $args['number'];
}
$terms = get_terms( $args );
if ( empty( $terms ) || ! is_array( $terms ) ) {
echo '<tr class="no-items"><td class="colspanchange" colspan="' . $this->get_column_count() . '">';
$this->no_items();
echo '</td></tr>';
return;
}
if ( is_taxonomy_hierarchical( $taxonomy ) && ! isset( $args['orderby'] ) ) {
if ( ! empty( $args['search'] ) ) {// Ignore children on searches.
$children = array();
} else {
$children = _get_term_hierarchy( $taxonomy );
}
/*
* Some funky recursion to get the job done (paging & parents mainly) is contained within.
* Skip it for non-hierarchical taxonomies for performance sake.
*/
$this->_rows( $taxonomy, $terms, $children, $offset, $number, $count );
} else {
foreach ( $terms as $term ) {
$this->single_row( $term );
}
}
}
/**
* @param string $taxonomy
* @param array $terms
* @param array $children
* @param int $start
* @param int $per_page
* @param int $count
* @param int $parent
* @param int $level
*/
private function _rows( $taxonomy, $terms, &$children, $start, $per_page, &$count, $parent = 0, $level = 0 ) {
$end = $start + $per_page;
foreach ( $terms as $key => $term ) {
if ( $count >= $end ) {
break;
}
if ( $term->parent !== $parent && empty( $_REQUEST['s'] ) ) {
continue;
}
// If the page starts in a subtree, print the parents.
if ( $count === $start && $term->parent > 0 && empty( $_REQUEST['s'] ) ) {
$my_parents = array();
$parent_ids = array();
$p = $term->parent;
while ( $p ) {
$my_parent = get_term( $p, $taxonomy );
$my_parents[] = $my_parent;
$p = $my_parent->parent;
if ( in_array( $p, $parent_ids, true ) ) { // Prevent parent loops.
break;
}
$parent_ids[] = $p;
}
unset( $parent_ids );
$num_parents = count( $my_parents );
while ( $my_parent = array_pop( $my_parents ) ) {
echo "t";
$this->single_row( $my_parent, $level - $num_parents );
$num_parents--;
}
}
if ( $count >= $start ) {
echo "t";
$this->single_row( $term, $level );
}
++$count;
unset( $terms[ $key ] );
if ( isset( $children[ $term->term_id ] ) && empty( $_REQUEST['s'] ) ) {
$this->_rows( $taxonomy, $terms, $children, $start, $per_page, $count, $term->term_id, $level + 1 );
}
}
}
/**
* @global string $taxonomy
* @param GC_Term $tag Term object.
* @param int $level
*/
public function single_row( $tag, $level = 0 ) {
global $taxonomy;
$tag = sanitize_term( $tag, $taxonomy );
$this->level = $level;
if ( $tag->parent ) {
$count = count( get_ancestors( $tag->term_id, $taxonomy, 'taxonomy' ) );
$level = 'level-' . $count;
} else {
$level = 'level-0';
}
echo '<tr id="tag-' . $tag->term_id . '" class="' . $level . '">';
$this->single_row_columns( $tag );
echo '</tr>';
}
/**
* @param GC_Term $tag Term object.
* @return string
*/
public function column_cb( $tag ) {
if ( current_user_can( 'delete_term', $tag->term_id ) ) {
return sprintf(
'<label class="screen-reader-text" for="cb-select-%1$s">%2$s</label>' .
'<input type="checkbox" name="delete_tags[]" value="%1$s" id="cb-select-%1$s" />',
$tag->term_id,
/* translators: %s: Taxonomy term name. */
sprintf( __( 'Select %s' ), $tag->name )
);
}
return ' ';
}
/**
* @param GC_Term $tag Term object.
* @return string
*/
public function column_name( $tag ) {
$taxonomy = $this->screen->taxonomy;
$pad = str_repeat( '— ', max( 0, $this->level ) );
/**
* Filters display of the term name in the terms list table.
*
* The default output may include padding due to the term's
* current level in the term hierarchy.
*
* @since 2.5.0
*
* @see GC_Terms_List_Table::column_name()
*
* @param string $pad_tag_name The term name, padded if not top-level.
* @param GC_Term $tag Term object.
*/
$name = apply_filters( 'term_name', $pad . ' ' . $tag->name, $tag );
$qe_data = get_term( $tag->term_id, $taxonomy, OBJECT, 'edit' );
$uri = gc_doing_ajax() ? gc_get_referer() : $_SERVER['REQUEST_URI'];
$edit_link = get_edit_term_link( $tag->term_id, $taxonomy, $this->screen->post_type );
if ( $edit_link ) {
$edit_link = add_query_arg(
'gc_http_referer',
urlencode( gc_unslash( $uri ) ),
$edit_link
);
$name = sprintf(
'<a class="row-title" href="https://docs.gechiui.com/classes/gc_terms_list_table/%s" aria-label="%s">%s</a>',
esc_url( $edit_link ),
/* translators: %s: Taxonomy term name. */
esc_attr( sprintf( __( '“%s” (Edit)' ), $tag->name ) ),
$name
);
}
$out = sprintf(
'<strong>%s</strong><br />',
$name
);
$out .= '<div class="hidden" id="inline_' . $qe_data->term_id . '">';
$out .= '<div class="name">' . $qe_data->name . '</div>';
/** This filter is documented in gc-admin/edit-tag-form.php */
$out .= '<div class="slug">' . apply_filters( 'editable_slug', $qe_data->slug, $qe_data ) . '</div>';
$out .= '<div class="parent">' . $qe_data->parent . '</div></div>';
return $out;
}
/**
* Gets the name of the default primary column.
*
* @since 4.3.0
*
* @return string Name of the default primary column, in this case, 'name'.
*/
protected function get_default_primary_column_name() {
return 'name';
}
/**
* Generates and displays row action links.
*
* @since 4.3.0
*
* @param GC_Term $tag Tag being acted upon.
* @param string $column_name Current column name.
* @param string $primary Primary column name.
* @return string Row actions output for terms, or an empty string
* if the current column is not the primary column.
*/
protected function handle_row_actions( $tag, $column_name, $primary ) {
if ( $primary !== $column_name ) {
return '';
}
$taxonomy = $this->screen->taxonomy;
$tax = get_taxonomy( $taxonomy );
$uri = gc_doing_ajax() ? gc_get_referer() : $_SERVER['REQUEST_URI'];
$edit_link = add_query_arg(
'gc_http_referer',
urlencode( gc_unslash( $uri ) ),
get_edit_term_link( $tag->term_id, $taxonomy, $this->screen->post_type )
);
$actions = array();
if ( current_user_can( 'edit_term', $tag->term_id ) ) {
$actions['edit'] = sprintf(
'<a href="https://docs.gechiui.com/classes/gc_terms_list_table/%s" aria-label="%s">%s</a>',
esc_url( $edit_link ),
/* translators: %s: Taxonomy term name. */
esc_attr( sprintf( __( 'Edit “%s”' ), $tag->name ) ),
__( 'Edit' )
);
$actions['inline hide-if-no-js'] = sprintf(
'<button type="button" class="button-link editinline" aria-label="%s" aria-expanded="false">%s</button>',
/* translators: %s: Taxonomy term name. */
esc_attr( sprintf( __( 'Quick edit “%s” inline' ), $tag->name ) ),
__( 'Quick Edit' )
);
}
if ( current_user_can( 'delete_term', $tag->term_id ) ) {
$actions['delete'] = sprintf(
'<a href="https://docs.gechiui.com/classes/gc_terms_list_table/%s" class="delete-tag aria-button-if-js" aria-label="%s">%s</a>',
gc_nonce_url( "edit-tags.php?action=delete&taxonomy=$taxonomy&tag_ID=$tag->term_id", 'delete-tag_' . $tag->term_id ),
/* translators: %s: Taxonomy term name. */
esc_attr( sprintf( __( 'Delete “%s”' ), $tag->name ) ),
__( 'Delete' )
);
}
if ( is_taxonomy_viewable( $tax ) ) {
$actions['view'] = sprintf(
'<a href="https://docs.gechiui.com/classes/gc_terms_list_table/%s" aria-label="%s">%s</a>',
get_term_link( $tag ),
/* translators: %s: Taxonomy term name. */
esc_attr( sprintf( __( 'View “%s” archive' ), $tag->name ) ),
__( 'View' )
);
}
/**
* Filters the action links displayed for each term in the Tags list table.
*
* @since 2.8.0
* @since 3.0.0 Deprecated in favor of {@see '{$taxonomy}_row_actions'} filter.
* @since 5.4.2 Restored (un-deprecated).
*
* @param string[] $actions An array of action links to be displayed. Default
* 'Edit', 'Quick Edit', 'Delete', and 'View'.
* @param GC_Term $tag Term object.
*/
$actions = apply_filters( 'tag_row_actions', $actions, $tag );
/**
* Filters the action links displayed for each term in the terms list table.
*
* The dynamic portion of the hook name, `$taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `category_row_actions`
* - `post_tag_row_actions`
*
* @since 3.0.0
*
* @param string[] $actions An array of action links to be displayed. Default
* 'Edit', 'Quick Edit', 'Delete', and 'View'.
* @param GC_Term $tag Term object.
*/
$actions = apply_filters( "{$taxonomy}_row_actions", $actions, $tag );
return $this->row_actions( $actions );
}
/**
* @param GC_Term $tag Term object.
* @return string
*/
public function column_description( $tag ) {
if ( $tag->description ) {
return $tag->description;
} else {
return '<span aria-hidden="true">—</span><span class="screen-reader-text">' . __( 'No description' ) . '</span>';
}
}
/**
* @param GC_Term $tag Term object.
* @return string
*/
public function column_slug( $tag ) {
/** This filter is documented in gc-admin/edit-tag-form.php */
return apply_filters( 'editable_slug', $tag->slug, $tag );
}
/**
* @param GC_Term $tag Term object.
* @return string
*/
public function column_posts( $tag ) {
$count = number_format_i18n( $tag->count );
$tax = get_taxonomy( $this->screen->taxonomy );
$ptype_object = get_post_type_object( $this->screen->post_type );
if ( ! $ptype_object->show_ui ) {
return $count;
}
if ( $tax->query_var ) {
$args = array( $tax->query_var => $tag->slug );
} else {
$args = array(
'taxonomy' => $tax->name,
'term' => $tag->slug,
);
}
if ( 'post' !== $this->screen->post_type ) {
$args['post_type'] = $this->screen->post_type;
}
if ( 'attachment' === $this->screen->post_type ) {
return "<a href='" . esc_url( add_query_arg( $args, 'upload.php' ) ) . "'>$count</a>";
}
return "<a href='" . esc_url( add_query_arg( $args, 'edit.php' ) ) . "'>$count</a>";
}
/**
* @param GC_Term $tag Term object.
* @return string
*/
public function column_links( $tag ) {
$count = number_format_i18n( $tag->count );
if ( $count ) {
$count = "<a href='https://docs.gechiui.com/classes/gc_terms_list_table/link-manager.php?cat_id=$tag->term_id'>$count</a>";
}
return $count;
}
/**
* @param GC_Term $tag Term object.
* @param string $column_name Name of the column.
* @return string
*/
public function column_default( $tag, $column_name ) {
/**
* Filters the displayed columns in the terms list table.
*
* The dynamic portion of the hook name, `$this->screen->taxonomy`,
* refers to the slug of the current taxonomy.
*
* Possible hook names include:
*
* - `manage_category_custom_column`
* - `manage_post_tag_custom_column`
*
* @since 2.8.0
*
* @param string $string Blank string.
* @param string $column_name Name of the column.
* @param int $term_id Term ID.
*/
return apply_filters( "manage_{$this->screen->taxonomy}_custom_column", '', $column_name, $tag->term_id );
}
/**
* Outputs the hidden row displayed when inline editing
*
* @since 3.1.0
*/
public function inline_edit() {
$tax = get_taxonomy( $this->screen->taxonomy );
if ( ! current_user_can( $tax->cap->edit_terms ) ) {
return;
}
?>
<form method="get">
<table style="display: none"><tbody id="inlineedit">
<tr id="inline-edit" class="inline-edit-row" style="display: none">
<td colspan="<?php echo $this->get_column_count(); ?>" class="colspanchange">
<fieldset>
<legend class="inline-edit-legend"><?php _e( 'Quick Edit' ); ?></legend>
<div class="inline-edit-col">
<label>
<span class="title"><?php _ex( 'Name', 'term name' ); ?></span>
<span class="input-text-wrap"><input type="text" name="name" class="ptitle" value="" /></span>
</label>
<?php if ( ! global_terms_enabled() ) : ?>
<label>
<span class="title"><?php _e( 'Slug' ); ?></span>
<span class="input-text-wrap"><input type="text" name="slug" class="ptitle" value="" /></span>
</label>
<?php endif; ?>
</div>
</fieldset>
<?php
$core_columns = array(
'cb' => true,
'description' => true,
'name' => true,
'slug' => true,
'posts' => true,
);
list( $columns ) = $this->get_column_info();
foreach ( $columns as $column_name => $column_display_name ) {
if ( isset( $core_columns[ $column_name ] ) ) {
continue;
}
/** This action is documented in gc-admin/includes/class-gc-posts-list-table.php */
do_action( 'quick_edit_custom_box', $column_name, 'edit-tags', $this->screen->taxonomy );
}
?>
<div class="inline-edit-save submit">
<button type="button" class="cancel button alignleft"><?php _e( 'Cancel' ); ?></button>
<button type="button" class="save button button-primary alignright"><?php echo $tax->labels->update_item; ?></button>
<span class="spinner"></span>
<?php gc_nonce_field( 'taxinlineeditnonce', '_inline_edit', false ); ?>
<input type="hidden" name="taxonomy" value="<?php echo esc_attr( $this->screen->taxonomy ); ?>" />
<input type="hidden" name="post_type" value="<?php echo esc_attr( $this->screen->post_type ); ?>" />
<br class="clear" />
<div class="notice notice-error notice-alt inline hidden">
<p class="error"></p>
</div>
</div>
</td></tr>
</tbody></table>
</form>
<?php
}
}