From 7080c75945ea95aaae06f6f661591935bb5a4145 Mon Sep 17 00:00:00 2001
From: webchick <webchick@24967.no-reply.drupal.org>
Date: Wed, 18 Dec 2013 14:13:07 -0800
Subject: [PATCH] Issue #2152735 by chx: Migrate process plugin: extract.
---
.../Plugin/migrate/process/Extract.php | 42 ++++++++++++
.../migrate/Tests/process/ExtractTest.php | 68 +++++++++++++++++++
2 files changed, 110 insertions(+)
create mode 100644 core/modules/migrate/lib/Drupal/migrate/Plugin/migrate/process/Extract.php
create mode 100644 core/modules/migrate/tests/Drupal/migrate/Tests/process/ExtractTest.php
diff --git a/core/modules/migrate/lib/Drupal/migrate/Plugin/migrate/process/Extract.php b/core/modules/migrate/lib/Drupal/migrate/Plugin/migrate/process/Extract.php
new file mode 100644
index 000000000000..3c825b133d39
--- /dev/null
+++ b/core/modules/migrate/lib/Drupal/migrate/Plugin/migrate/process/Extract.php
@@ -0,0 +1,42 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\migrate\Plugin\migrate\process\Extract.
+ */
+
+namespace Drupal\migrate\Plugin\migrate\process;
+
+use Drupal\Component\Utility\NestedArray;
+use Drupal\migrate\ProcessPluginBase;
+use Drupal\migrate\MigrateException;
+use Drupal\migrate\MigrateExecutable;
+use Drupal\migrate\Row;
+
+/**
+ * This plugin extracts a value from an array.
+ *
+ * @see https://drupal.org/node/2152731
+ *
+ * @MigrateProcessPlugin(
+ * id = "extract"
+ * )
+ */
+class Extract extends ProcessPluginBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function transform($value, MigrateExecutable $migrate_executable, Row $row, $destination_property) {
+ if (!is_array($value)) {
+ throw new MigrateException('Input should be an array.');
+ }
+ $new_value = NestedArray::getValue($value, $this->configuration['index'], $key_exists);
+ if (!$key_exists) {
+ throw new MigrateException('Array index missing, extraction failed.');
+ }
+ return $new_value;
+ }
+
+}
+
diff --git a/core/modules/migrate/tests/Drupal/migrate/Tests/process/ExtractTest.php b/core/modules/migrate/tests/Drupal/migrate/Tests/process/ExtractTest.php
new file mode 100644
index 000000000000..5e1e7d999638
--- /dev/null
+++ b/core/modules/migrate/tests/Drupal/migrate/Tests/process/ExtractTest.php
@@ -0,0 +1,68 @@
+<?php
+/**
+ * @file
+ * Contains \Drupal\migrate\Tests\process\ExtractTest.
+ */
+
+namespace Drupal\migrate\Tests\process;
+
+use Drupal\migrate\Plugin\migrate\process\Extract;
+
+/**
+ * Tests the extract plugin.
+ *
+ * @see \Drupal\migrate\Plugin\migrate\process\Extract
+ * @group Drupal
+ * @group migrate
+ */
+class ExtractTest extends MigrateProcessTestCase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function getInfo() {
+ return array(
+ 'name' => 'Extract process plugin',
+ 'description' => 'Tests the extract process plugin.',
+ 'group' => 'Migrate',
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setUp() {
+ $configuration['index'] = array('foo');
+ $this->plugin = new Extract($configuration, 'map', array());
+ parent::setUp();
+ }
+
+ /**
+ * Tests successful extraction.
+ */
+ public function testExtract() {
+ $value = $this->plugin->transform(array('foo' => 'bar'), $this->migrateExecutable, $this->row, 'destinationproperty');
+ $this->assertSame($value, 'bar');
+ }
+
+ /**
+ * Tests invalid input.
+ *
+ * @expectedException \Drupal\migrate\MigrateException
+ * @expectedExceptionMessage Input should be an array.
+ */
+ public function testExtractFromString() {
+ $this->plugin->transform('bar', $this->migrateExecutable, $this->row, 'destinationproperty');
+ }
+
+ /**
+ * Tests unsuccessful extraction.
+ *
+ * @expectedException \Drupal\migrate\MigrateException
+ * @expectedExceptionMessage Array index missing, extraction failed.
+ */
+ public function testExtractFail() {
+ $this->plugin->transform(array('bar' => 'foo'), $this->migrateExecutable, $this->row, 'destinationproperty');
+ }
+
+}
--
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