Issue #2066145 by mtift: Convert node_admin_theme() to the configuration system.

core/modules/book/book.module

@@ -272,7 +272,7 @@ function _book_node_is_removable(EntityInterface $node) {
  * Implements hook_admin_paths().
  */
 function book_admin_paths() {
-  if (variable_get('node_admin_theme')) {
+  if (Drupal::config('node.settings')->get('use_admin_theme')) {
     $paths = array(
       'node/*/outline' => TRUE,
       'node/*/outline/remove' => TRUE,

core/modules/node/config/node.settings.yml

 items_per_page: '10'
+use_admin_theme: '0'

core/modules/node/config/schema/node.schema.yml

@@ -7,6 +7,9 @@ node.settings:
     items_per_page:
       type: integer
       label: 'Number of posts on front page'
+    use_admin_theme:
+      type: boolean
+      label: 'Use admin theme when editing or creating content'
 
 node.type.*:
   type: mapping

core/modules/node/node.install

@@ -430,7 +430,6 @@ function node_uninstall() {
 
   // Delete remaining general module variables.
   Drupal::state()->delete('node.node_access_needs_rebuild');
-  variable_del('node_admin_theme');
   variable_del('node_recent_block_count');
 
   // Delete any stored state.
@@ -1114,6 +1113,17 @@ function node_update_8020() {
   Drupal::state()->set('node.type.locked', $locked);
 }
 
+/**
+ * Converts node_admin_theme variable to config.
+ *
+ * @ingroup config_upgrade
+ */
+function node_update_8021() {
+  update_variables_to_config('node.settings', array(
+    'node_admin_theme' => 'use_admin_theme'
+  ));
+}
+
 /**
  * @} End of "addtogroup updates-7.x-to-8.x"
  * The next series of updates should start at 9000.

core/modules/node/node.module

@@ -223,7 +223,7 @@ function node_uri(EntityInterface $node) {
  * Implements hook_admin_paths().
  */
 function node_admin_paths() {
-  if (variable_get('node_admin_theme')) {
+  if (Drupal::config('node.settings')->get('use_admin_theme')) {
     $paths = array(
       'node/*/edit' => TRUE,
       'node/*/delete' => TRUE,
@@ -1900,10 +1900,10 @@ function node_form_system_site_information_settings_form_submit($form, &$form_st
  * @see node_form_system_themes_admin_form_submit()
  */
 function node_form_system_themes_admin_form_alter(&$form, &$form_state, $form_id) {
-  $form['admin_theme']['node_admin_theme'] = array(
+  $form['admin_theme']['use_admin_theme'] = array(
     '#type' => 'checkbox',
     '#title' => t('Use the administration theme when editing or creating content'),
-    '#default_value' => variable_get('node_admin_theme', '0'),
+    '#default_value' => Drupal::config('node.settings')->get('use_admin_theme'),
   );
   $form['#submit'][] = 'node_form_system_themes_admin_form_submit';
 }
@@ -1914,7 +1914,9 @@ function node_form_system_themes_admin_form_alter(&$form, &$form_state, $form_id
  * @see node_form_system_themes_admin_form_alter()
  */
 function node_form_system_themes_admin_form_submit($form, &$form_state) {
-  variable_set('node_admin_theme', $form_state['values']['node_admin_theme']);
+  Drupal::config('node.settings')
+    ->set('use_admin_theme', $form_state['values']['use_admin_theme'])
+    ->save();
 }
 
 /**

core/modules/overlay/lib/Drupal/overlay/Tests/OverlayCloseTest.php

@@ -35,7 +35,7 @@ public static function getInfo() {
   function testNodeCreation() {
     // Make sure the node creation page is considered an administrative path
     // (which will appear in the overlay).
-    variable_set('node_admin_theme', TRUE);
+    $this->container->get('config.factory')->get('node.settings')->set('use_admin_theme', '1')->save();
 
     // Create a content type and a user who has permission to create it inside
     // the overlay.

core/modules/shortcut/lib/Drupal/shortcut/Tests/ShortcutLinksTest.php

@@ -74,7 +74,7 @@ function testShortcutLinkAdd() {
   function testShortcutQuickLink() {
     theme_enable(array('seven'));
     \Drupal::config('system.theme')->set('admin', 'seven')->save();
-    variable_set('node_admin_theme', TRUE);
+    $this->container->get('config.factory')->get('node.settings')->set('use_admin_theme', '1')->save();
 
     $link = reset($this->set->links);
 

core/modules/system/lib/Drupal/system/Tests/System/ThemeTest.php

@@ -183,7 +183,7 @@ function testAdministrationTheme() {
     // Enable an administration theme and show it on the node admin pages.
     $edit = array(
       'admin_theme' => 'seven',
-      'node_admin_theme' => TRUE,
+      'use_admin_theme' => TRUE,
     );
     $this->drupalPost('admin/appearance', $edit, t('Save configuration'));
 
@@ -201,7 +201,7 @@ function testAdministrationTheme() {
 
     // Disable the admin theme on the node admin pages.
     $edit = array(
-      'node_admin_theme' => FALSE,
+      'use_admin_theme' => FALSE,
     );
     $this->drupalPost('admin/appearance', $edit, t('Save configuration'));
 
@@ -217,7 +217,7 @@ function testAdministrationTheme() {
       ->save();
     $edit = array(
       'admin_theme' => '0',
-      'node_admin_theme' => FALSE,
+      'use_admin_theme' => FALSE,
     );
     $this->drupalPost('admin/appearance', $edit, t('Save configuration'));
 

core/modules/translation/translation.module

@@ -98,7 +98,7 @@ function _translation_tab_access(NodeInterface $node) {
  * Implements hook_admin_paths().
  */
 function translation_admin_paths() {
-  if (variable_get('node_admin_theme')) {
+  if (Drupal::config('node.settings')->get('use_admin_theme')) {
     $paths = array(
       'node/*/translate' => TRUE,
     );

core/profiles/standard/standard.install

@@ -85,5 +85,5 @@ function standard_install() {
   // Enable the admin theme.
   theme_enable(array('seven'));
   Drupal::config('system.theme')->set('admin', 'seven')->save();
-  variable_set('node_admin_theme', '1');
+  Drupal::config('node.settings')->set('use_admin_theme', '1')->save();
 }