Issue #2996432 by andypost: Replace all calls to db_truncate, which is deprecated

core/includes/database.inc

@@ -266,6 +266,7 @@ function db_delete($table, array $options = []) {
  * @see \Drupal\Core\Database\Connection::defaultOptions()
  */
 function db_truncate($table, array $options = []) {
+  @trigger_error('db_truncate() is deprecated in Drupal 8.0.x and will be removed before Drupal 9.0.0. Instead, get a database connection injected into your service from the container and call truncate() on it. For example, $injected_database->truncate($table, $options). See https://www.drupal.org/node/2993033', E_USER_DEPRECATED);
   if (empty($options['target']) || $options['target'] == 'replica') {
     $options['target'] = 'default';
   }

core/modules/statistics/tests/src/Functional/StatisticsLoggingTest.php

@@ -2,6 +2,7 @@
 
 namespace Drupal\Tests\statistics\Functional;
 
+use Drupal\Core\Database\Database;
 use Drupal\Tests\BrowserTestBase;
 use Drupal\node\Entity\Node;
 
@@ -82,7 +83,7 @@ class StatisticsLoggingTest extends BrowserTestBase {
       ->save();
 
     // Clear the logs.
-    db_truncate('node_counter');
+    Database::getConnection()->truncate('node_counter');
     $this->client = \Drupal::httpClient();
   }
 

core/tests/Drupal/KernelTests/Core/Database/DatabaseLegacyTest.php

@@ -5,6 +5,7 @@ namespace Drupal\KernelTests\Core\Database;
 use Drupal\Core\Database\Query\Condition;
 use Drupal\Core\Database\Query\Delete;
 use Drupal\Core\Database\Query\Merge;
+use Drupal\Core\Database\Query\Truncate;
 use Drupal\Core\Database\Query\Update;
 use Drupal\Core\Database\Transaction;
 use Drupal\Core\Database\Database;
@@ -376,4 +377,13 @@ class DatabaseLegacyTest extends DatabaseTestBase {
     $this->assertInstanceOf(Delete::class, db_delete('test'));
   }
 
+  /**
+   * Tests deprecation of the db_truncate() function.
+   *
+   * @expectedDeprecation db_truncate() is deprecated in Drupal 8.0.x and will be removed before Drupal 9.0.0. Instead, get a database connection injected into your service from the container and call truncate() on it. For example, $injected_database->truncate($table, $options). See https://www.drupal.org/node/2993033
+   */
+  public function testDbTruncate() {
+    $this->assertInstanceOf(Truncate::class, db_truncate('test'));
+  }
+
 }

core/tests/Drupal/KernelTests/Core/Database/DeleteTruncateTest.php

@@ -60,7 +60,7 @@ class DeleteTruncateTest extends DatabaseTestBase {
     $num_records_before = db_query("SELECT COUNT(*) FROM {test}")->fetchField();
     $this->assertTrue($num_records_before > 0, 'The table is not empty.');
 
-    db_truncate('test')->execute();
+    $this->connection->truncate('test')->execute();
 
     $num_records_after = db_query("SELECT COUNT(*) FROM {test}")->fetchField();
     $this->assertEqual(0, $num_records_after, 'Truncate really deletes everything.');

core/tests/Drupal/KernelTests/Core/Database/TransactionTest.php

@@ -337,7 +337,7 @@ class TransactionTest extends DatabaseTestBase {
    * Starts over for a new test.
    */
   protected function cleanUp() {
-    db_truncate('test')
+    $this->connection->truncate('test')
       ->execute();
   }