feat(Spanner): add sample for update database (GoogleCloudPlatform#1793)

Author: vishwarajanand

spanner/composer.json

@@ -1,5 +1,5 @@
 {
     "require": {
-        "google/cloud-spanner": "^1.54.0"
+        "google/cloud-spanner": "^1.62.1"
     }
 }

spanner/src/update_database.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * Copyright 2023 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * For instructions on how to run the full sample:
+ *
+ * @see https://github.com/GoogleCloudPlatform/php-docs-samples/tree/main/spanner/README.md
+ */
+
+namespace Google\Cloud\Samples\Spanner;
+
+// [START spanner_update_database]
+use Google\Cloud\Spanner\SpannerClient;
+
+/**
+ * Updates the drop protection setting for a database.
+ * Example:
+ * ```
+ * update_database($instanceId, $databaseId);
+ * ```
+ *
+ * @param string $instanceId The Spanner instance ID.
+ * @param string $databaseId The Spanner database ID.
+ */
+function update_database(string $instanceId, string $databaseId): void
+{
+    $spanner = new SpannerClient();
+    $instance = $spanner->instance($instanceId);
+    $database = $instance->database($databaseId);
+    printf(
+        'Updating database %s',
+        $database->name(),
+    );
+    $op = $database->updateDatabase(['enableDropProtection' => true]);
+    $op->pollUntilComplete();
+    $database->reload();
+    printf(
+        'Updated the drop protection for %s to %s' . PHP_EOL,
+        $database->name(),
+        $database->info()['enableDropProtection']
+    );
+}
+// [END spanner_update_database]
+
+// The following 2 lines are only needed to run the samples
+require_once __DIR__ . '/../../testing/sample_helpers.php';
+\Google\Cloud\Samples\execute_sample(__FILE__, __NAMESPACE__, $argv);

spanner/test/spannerTest.php

@@ -239,6 +239,28 @@ public function testCreateDatabaseWithEncryptionKey()
         $this->assertStringContainsString('Created database en-test-', $output);
     }
 
+    /**
+     * @depends testCreateDatabase
+     */
+    public function testUpdateDatabase()
+    {
+        $output = $this->runFunctionSnippet('update_database', [
+            'instanceId' => self::$instanceId,
+            'databaseId' => self::$databaseId
+        ]);
+        $this->assertStringContainsString(self::$databaseId, $output);
+        $this->assertStringContainsString(true, $output);
+
+        // reset the enableDropProtection for test tear down
+        $spanner = new SpannerClient();
+        $instance = $spanner->instance(self::$instanceId);
+        $database = $instance->database(self::$databaseId);
+        $op = $database->updateDatabase(['enableDropProtection' => false]);
+        $op->pollUntilComplete();
+        $database->reload();
+        $this->assertFalse($database->info()['enableDropProtection']);
+    }
+
     /**
      * @depends testCreateDatabase
      */