Issue #1945418 by tim.plunkett, jaskho: Fixed New-style placeholders in menu_router() table break breadcrumbs, menu tree, etc.

core/includes/menu.inc

@@ -2701,6 +2701,8 @@ function _menu_router_merge_route(array $router_item, $path) {
   $router_item['page callback'] = 'USES_ROUTE';
   $router_item['access callback'] = TRUE;
 
+  // Translate placeholders, e.g. {foo} -> %.
+  $router_item['path'] = preg_replace('/{' . DRUPAL_PHP_FUNCTION_PATTERN . '}/', '%', $router_item['path']);
 
   return $router_item;
 }

core/modules/system/lib/Drupal/system/Tests/Menu/MenuRouterTest.php

@@ -68,6 +68,23 @@ class MenuRouterTest extends WebTestBase {
     $this->drupalPlaceBlock('system_menu_block:menu-tools');
   }
 
+  /**
+   * Test local tasks with route placeholders.
+   */
+  public function testHookMenuIntegration() {
+    // Generate base path with random argument.
+    $base_path = 'foo/' . $this->randomName(8);
+    $this->drupalGet($base_path);
+    // Confirm correct controller activated.
+    $this->assertText('test1');
+    // Confirm local task links are displayed.
+    $this->assertLink('Local task A');
+    $this->assertLink('Local task B');
+    // Confirm correct local task href.
+    $this->assertLinkByHref(url($base_path));
+    $this->assertLinkByHref(url($base_path . '/b'));
+  }
+
   /**
    * Test title callback set to FALSE.
    */

core/modules/system/tests/modules/menu_test/lib/Drupal/menu_test/TestControllers.php

@@ -0,0 +1,31 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\menu_test\TestControllers.
+ */
+
+namespace Drupal\menu_test;
+
+use Drupal\Core\Entity\EntityInterface;
+
+/**
+ * Controllers for testing the menu integration routing system.
+ */
+class TestControllers {
+
+  /**
+   * Prints out test data.
+   */
+  public function test1() {
+    return 'test1';
+  }
+
+  /**
+   * Prints out test data.
+   */
+  public function test2() {
+    return 'test2';
+  }
+
+}

core/modules/system/tests/modules/menu_test/menu_test.module

@@ -394,6 +394,23 @@ function menu_test_menu() {
     'access callback' => TRUE,
   );
 
+  // Parent page for controller-based local tasks.
+  $items['foo/%'] = array(
+    'title' => 'Controller-based local tasks',
+    'route_name' => 'menu_router_test1',
+  );
+  // Controller-based local task.
+  $items['foo/%/a'] = array(
+    'title' => 'Local task A',
+    'type' => MENU_DEFAULT_LOCAL_TASK,
+  );
+  // Controller-based local task.
+  $items['foo/%/b'] = array(
+    'title' => 'Local task B',
+    'route_name' => 'menu_router_test3',
+    'type' => MENU_LOCAL_TASK,
+  );
+
   return $items;
 }
 

core/modules/system/tests/modules/menu_test/menu_test.routing.yml

@@ -0,0 +1,12 @@
+menu_router_test1:
+  pattern: '/foo/{bar}'
+  defaults:
+    _content: '\Drupal\menu_test\TestControllers::test1'
+  requirements:
+    _access: 'TRUE'
+menu_router_test3:
+  pattern: '/foo/{bar}/b'
+  defaults:
+    _content: '\Drupal\menu_test\TestControllers::test2'
+  requirements:
+    _access: 'TRUE'