Taxonomy: Introduce `wp-admin/term.php` for editing single terms.

This is similar to `edit.php` -> `post.php` and `users.php` -> `user-edit.php` and fixes a bug where screen options for the list table were shown while editing a term.

Fixes #34988.
Built from https://develop.svn.wordpress.org/trunk@36308


git-svn-id: http://core.svn.wordpress.org/trunk@36275 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/edit-tag-form.php

@@ -7,16 +7,8 @@
  */
 
 // don't load directly
-if ( !defined('ABSPATH') )
-	die('-1');
-
-if ( empty($tag_ID) ) { ?>
-<div class="wrap">
-	<h1><?php echo $tax->labels->edit_item; ?></h1>
-	<div id="message" class="notice notice-warning"><p><strong><?php _e( 'You did not select an item for editing.' ); ?></strong></p></div>
-</div>
-<?php
-	return;
+if ( ! defined( 'ABSPATH' ) ) {
+	die( '-1' );
 }
 
 // Back compat hooks
@@ -57,7 +49,7 @@ if ( 'category' == $taxonomy ) {
  */
 wp_reset_vars( array( 'wp_http_referer' ) );
 
-$wp_http_referer = remove_query_arg( array( 'action', 'message', 'tag_ID' ), $wp_http_referer );
+$wp_http_referer = remove_query_arg( array( 'action', 'message', 'term_id' ), $wp_http_referer );
 
 /** Also used by Edit Tags */
 require_once( ABSPATH . 'wp-admin/includes/edit-tag-messages.php' );
@@ -103,10 +95,13 @@ do_action( "{$taxonomy}_pre_edit_form", $tag, $taxonomy ); ?>
  */
 do_action( "{$taxonomy}_term_edit_form_tag" );
 ?>>
-<input type="hidden" name="action" value="editedtag" />
-<input type="hidden" name="tag_ID" value="<?php echo esc_attr($tag->term_id) ?>" />
-<input type="hidden" name="taxonomy" value="<?php echo esc_attr($taxonomy) ?>" />
-<?php wp_original_referer_field(true, 'previous'); wp_nonce_field('update-tag_' . $tag_ID); ?>
+<input type="hidden" name="action" value="editedtag"/>
+<input type="hidden" name="tag_ID" value="<?php echo esc_attr( $term_id ) ?>"/>
+<input type="hidden" name="taxonomy" value="<?php echo esc_attr( $taxonomy ) ?>"/>
+<?php
+wp_original_referer_field( true, 'previous' );
+wp_nonce_field( 'update-tag_' . $term_id );
+?>
 	<table class="form-table">
 		<tr class="form-field form-required term-name-wrap">
 			<th scope="row"><label for="name"><?php _ex( 'Name', 'term name' ); ?></label></th>

wp-admin/edit-tags.php

@@ -150,21 +150,18 @@ case 'bulk-delete':
 	break;
 
 case 'edit':
-	$title = $tax->labels->edit_item;
-
 	if ( ! isset( $_REQUEST['tag_ID'] ) ) {
 		break;
 	}
 
-	$tag_ID = (int) $_REQUEST['tag_ID'];
+	$term_id = (int) $_REQUEST['tag_ID'];
+	$term    = get_term( $term_id );
 
-	$tag = get_term( $tag_ID, $taxonomy, OBJECT, 'edit' );
-	if ( ! $tag )
+	if ( ! $term instanceof WP_Term ) {
 		wp_die( __( 'You attempted to edit an item that doesn’t exist. Perhaps it was deleted?' ) );
-	require_once( ABSPATH . 'wp-admin/admin-header.php' );
-	include( ABSPATH . 'wp-admin/edit-tag-form.php' );
-	include( ABSPATH . 'wp-admin/admin-footer.php' );
+	}
 
+	wp_redirect( esc_url_raw( get_edit_term_link( $term_id, $taxonomy, $post_type ) ) );
 	exit;
 
 case 'editedtag':

wp-admin/term.php

@@ -0,0 +1,67 @@
+<?php
+/**
+ * Edit Term Administration Screen.
+ *
+ * @package    WordPress
+ * @subpackage Administration
+ */
+
+/** WordPress Administration Bootstrap */
+require_once( dirname( __FILE__ ) . '/admin.php' );
+
+if ( empty( $_REQUEST['term_id'] ) ) {
+	$sendback = admin_url( 'edit-tags.php' );
+	if ( ! empty( $taxnow ) ) {
+		$sendback = add_query_arg( array( 'taxonomy' => $taxnow ), $sendback );
+	}
+	wp_redirect( esc_url( $sendback ) );
+	exit;
+}
+
+$term_id = absint( $_REQUEST['term_id'] );
+$tag    = get_term( $term_id, $taxnow, OBJECT, 'edit' );
+
+if ( ! $tag instanceof WP_Term ) {
+	wp_die( __( 'You attempted to edit an item that doesn&#8217;t exist. Perhaps it was deleted?' ) );
+}
+
+$tax      = get_taxonomy( $tag->taxonomy );
+$taxonomy = $tax->name;
+$title    = $tax->labels->edit_item;
+
+if ( ! in_array( $taxonomy, get_taxonomies( array( 'show_ui' => true ) ) ) ||
+     ! current_user_can( $tax->cap->manage_terms )
+) {
+	wp_die(
+		'<h1>' . __( 'Cheatin&#8217; uh?' ) . '</h1>' .
+		'<p>' . __( 'You are not allowed to manage this item.' ) . '</p>',
+		403
+	);
+}
+
+$post_type = get_current_screen()->post_type;
+
+// Default to the first object_type associated with the taxonomy if no post type was passed.
+if ( empty( $post_type ) ) {
+	$post_type = reset( $tax->object_type );
+}
+
+if ( 'post' != $post_type ) {
+	$parent_file  = ( 'attachment' == $post_type ) ? 'upload.php' : "edit.php?post_type=$post_type";
+	$submenu_file = "edit-tags.php?taxonomy=$taxonomy&amp;post_type=$post_type";
+} elseif ( 'link_category' == $taxonomy ) {
+	$parent_file  = 'link-manager.php';
+	$submenu_file = 'edit-tags.php?taxonomy=link_category';
+} else {
+	$parent_file  = 'edit.php';
+	$submenu_file = "edit-tags.php?taxonomy=$taxonomy";
+}
+
+get_current_screen()->set_screen_reader_content( array(
+	'heading_pagination' => $tax->labels->items_list_navigation,
+	'heading_list'       => $tax->labels->items_list,
+) );
+
+require_once( ABSPATH . 'wp-admin/admin-header.php' );
+include( ABSPATH . 'wp-admin/edit-tag-form.php' );
+include( ABSPATH . 'wp-admin/admin-footer.php' );

wp-includes/link-template.php

@@ -926,9 +926,8 @@ function get_edit_term_link( $term_id, $taxonomy, $object_type = '' ) {
 	}
 
 	$args = array(
-		'action' => 'edit',
 		'taxonomy' => $taxonomy,
-		'tag_ID' => $term->term_id,
+		'term_id'  => $term->term_id,
 	);
 
 	if ( $object_type ) {
@@ -938,7 +937,7 @@ function get_edit_term_link( $term_id, $taxonomy, $object_type = '' ) {
 	}
 
 	if ( $tax->show_ui ) {
-		$location = add_query_arg( $args, admin_url( 'edit-tags.php' ) );
+		$location = add_query_arg( $args, admin_url( 'term.php' ) );
 	} else {
 		$location = '';
 	}

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-alpha-36307';
+$wp_version = '4.5-alpha-36308';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.