From 88b0d1433408451e0d6815e365a2778a91bc498d Mon Sep 17 00:00:00 2001
From: DuaelFr <DuaelFr@931394.no-reply.drupal.org>
Date: Thu, 31 May 2018 10:26:38 -0600
Subject: [PATCH] Issue #2902867 by DuaelFr, mr.baileys, heddn: Documentation
 for skip_on_value

---
 src/Plugin/migrate/process/EntityLookup.php   |   5 +
 src/Plugin/migrate/process/SkipOnValue.php    |   3 +-
 .../migrate/process/EntityGenerateTest.php    | 354 +++++++++++++++++-
 3 files changed, 344 insertions(+), 18 deletions(-)

diff --git a/src/Plugin/migrate/process/EntityLookup.php b/src/Plugin/migrate/process/EntityLookup.php
index d02bb912..2313d5a2 100644
--- a/src/Plugin/migrate/process/EntityLookup.php
+++ b/src/Plugin/migrate/process/EntityLookup.php
@@ -152,6 +152,11 @@ class EntityLookup extends ProcessPluginBase implements ContainerFactoryPluginIn
    * {@inheritdoc}
    */
   public function transform($value, MigrateExecutableInterface $migrateExecutable, Row $row, $destinationProperty) {
+    // If the source data is an empty array, return the same.
+    if (gettype($value) === 'array' && count($value) === 0) {
+      return [];
+    }
+
     // In case of subfields ('field_reference/target_id'), extract the field
     // name only.
     $parts = explode('/', $destinationProperty);
diff --git a/src/Plugin/migrate/process/SkipOnValue.php b/src/Plugin/migrate/process/SkipOnValue.php
index ff5a0578..f9c26be0 100644
--- a/src/Plugin/migrate/process/SkipOnValue.php
+++ b/src/Plugin/migrate/process/SkipOnValue.php
@@ -20,7 +20,7 @@ use Drupal\migrate\Row;
  * - value: An single value or array of values against which the source value
  *   should be compared.
  * - not_equals: (optional) If set, skipping occurs when values are not equal.
- * - method: (optional) What to do if the input value is empty. Possible values:
+ * - method: What to do if the input value is empty. Possible values:
  *   - row: Skips the entire row when an empty value is encountered.
  *   - process: Prevents further processing of the input property when the value
  *     is empty.
@@ -32,6 +32,7 @@ use Drupal\migrate\Row;
  *   type:
  *     plugin: skip_on_value
  *     source: content_type
+ *     method: row
  *     value: blog
  * @endcode
  *
diff --git a/tests/src/Kernel/Plugin/migrate/process/EntityGenerateTest.php b/tests/src/Kernel/Plugin/migrate/process/EntityGenerateTest.php
index 0944ff83..ad6d9894 100644
--- a/tests/src/Kernel/Plugin/migrate/process/EntityGenerateTest.php
+++ b/tests/src/Kernel/Plugin/migrate/process/EntityGenerateTest.php
@@ -119,12 +119,16 @@ class EntityGenerateTest extends KernelTestBase implements MigrateMessageInterfa
   public function testTransform(array $definition, array $expected, array $preSeed = []) {
     // Pre seed some test data.
     foreach ($preSeed as $storageName => $values) {
-      /** @var \Drupal\Core\Entity\ContentEntityStorageInterface $storage */
-      $storage = $this->container
-        ->get('entity_type.manager')
-        ->getStorage($storageName);
-      $entity = $storage->create($values);
-      $entity->save();
+      // If the first element of $values is a non-empty array, create multiple
+      // entities. Otherwise, create just one entity.
+      if (isset($values[0])) {
+        foreach ($values as $itemValues) {
+          $this->createTestData($storageName, $itemValues);
+        }
+      }
+      else {
+        $this->createTestData($storageName, $values);
+      }
     }
 
     /** @var \Drupal\migrate\Plugin\Migration $migration */
@@ -139,20 +143,52 @@ class EntityGenerateTest extends KernelTestBase implements MigrateMessageInterfa
       $properties = array_diff_key($row, array_flip(['id']));
       foreach ($properties as $property => $value) {
         if (is_array($value)) {
-          foreach ($value as $key => $expectedValue) {
-            if (empty($expectedValue)) {
-              if (!$entity->{$property}->isEmpty()) {
-                $this->assertTrue($entity->{$property}[0]->entity->$key->isEmpty(), "Expected value is empty but field $property.$key is not empty.");
-              }
-              else {
-                $this->assertTrue($entity->{$property}->isEmpty(), "Expected value is empty but field $property is not empty.");
+          if (empty($value)) {
+            $this->assertEmpty($entity->{$property}->getValue(), "Expected value is 'unset' but field $property is set.");
+          }
+          else {
+            // Check if we're testing multiple values in one field. If so, loop
+            // through them one-by-one and check that they're present in the
+            // $entity.
+            if (isset($value[0])) {
+              foreach ($value as $valueID => $valueToCheck) {
+                foreach ($valueToCheck as $key => $expectedValue) {
+                  if (empty($expectedValue)) {
+                    if (!$entity->{$property}->isEmpty()) {
+                      $this->assertTrue($entity->{$property}[0]->entity->$key->isEmpty(), "Expected value is empty but field $property.$key is not empty.");
+                    }
+                    else {
+                      $this->assertTrue($entity->{$property}->isEmpty(), "FOOBAR Expected value is empty but field $property is not empty.");
+                    }
+                  }
+                  elseif ($entity->{$property}->getValue()) {
+                    $this->assertEquals($expectedValue, $entity->{$property}[$valueID]->entity->$key->value);
+                  }
+                  else {
+                    $this->fail("Expected value: $expectedValue does not exist in $property.");
+                  }
+                }
               }
             }
-            elseif ($entity->{$property}->getValue()) {
-              $this->assertEquals($expectedValue, $entity->{$property}[0]->entity->$key->value);
-            }
+            // If we get to this point, we're only checking a
+            // single field value.
             else {
-              $this->fail("Expected value: $expectedValue does not exist in $property.");
+              foreach ($value as $key => $expectedValue) {
+                if (empty($expectedValue)) {
+                  if (!$entity->{$property}->isEmpty()) {
+                    $this->assertTrue($entity->{$property}[0]->entity->$key->isEmpty(), "Expected value is empty but field $property.$key is not empty.");
+                  }
+                  else {
+                    $this->assertTrue($entity->{$property}->isEmpty(), "BINBAZ Expected value is empty but field $property is not empty.");
+                  }
+                }
+                elseif ($entity->{$property}->getValue()) {
+                  $this->assertEquals($expectedValue, $entity->{$property}[0]->entity->$key->value);
+                }
+                else {
+                  $this->fail("Expected value: $expectedValue does not exist in $property.");
+                }
+              }
             }
           }
         }
@@ -405,6 +441,273 @@ class EntityGenerateTest extends KernelTestBase implements MigrateMessageInterfa
           ],
         ],
       ],
+      'lookup single existing term returns correct term' => [
+        'definition' => [
+          'source' => [
+            'plugin' => 'embedded_data',
+            'data_rows' => [
+              [
+                'id' => 1,
+                'title' => 'content item 1',
+                'term' => 'Grapes',
+              ],
+            ],
+            'ids' => [
+              'id' => ['type' => 'integer'],
+            ],
+          ],
+          'process' => [
+            'id' => 'id',
+            'type' => [
+              'plugin' => 'default_value',
+              'default_value' => $this->bundle,
+            ],
+            'title' => 'title',
+            $this->fieldName => [
+              'plugin' => 'entity_lookup',
+              'source' => 'term',
+            ],
+          ],
+          'destination' => [
+            'plugin' => 'entity:node',
+          ],
+        ],
+        'expected' => [
+          'row 1' => [
+            'id' => 1,
+            'title' => 'content item 1',
+            $this->fieldName => [
+              'tid' => 1,
+              'name' => 'Grapes',
+            ],
+          ],
+        ],
+        'pre seed' => [
+          'taxonomy_term' => [
+            'name' => 'Grapes',
+            'vid' => $this->vocabulary,
+            'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
+          ],
+        ],
+      ],
+      'lookup single missing term returns null value' => [
+        'definition' => [
+          'source' => [
+            'plugin' => 'embedded_data',
+            'data_rows' => [
+              [
+                'id' => 1,
+                'title' => 'content item 1',
+                'term' => 'Apple',
+              ],
+            ],
+            'ids' => [
+              'id' => ['type' => 'integer'],
+            ],
+          ],
+          'process' => [
+            'id' => 'id',
+            'type' => [
+              'plugin' => 'default_value',
+              'default_value' => $this->bundle,
+            ],
+            'title' => 'title',
+            $this->fieldName => [
+              'plugin' => 'entity_lookup',
+              'source' => 'term',
+            ],
+          ],
+          'destination' => [
+            'plugin' => 'entity:node',
+          ],
+        ],
+        'expected' => [
+          'row 1' => [
+            'id' => 1,
+            'title' => 'content item 1',
+            $this->fieldName => [],
+          ],
+        ],
+        'pre seed' => [
+          'taxonomy_term' => [
+            'name' => 'Grapes',
+            'vid' => $this->vocabulary,
+            'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
+          ],
+        ],
+      ],
+      'lookup multiple existing terms returns correct terms' => [
+        'definition' => [
+          'source' => [
+            'plugin' => 'embedded_data',
+            'data_rows' => [
+              [
+                'id' => 1,
+                'title' => 'content item 1',
+                'term' => [
+                  'Grapes',
+                  'Apples',
+                ],
+              ],
+            ],
+            'ids' => [
+              'id' => ['type' => 'integer'],
+            ],
+          ],
+          'process' => [
+            'id' => 'id',
+            'title' => 'title',
+            'type' => [
+              'plugin' => 'default_value',
+              'default_value' => $this->bundle,
+            ],
+            $this->fieldName => [
+              'plugin' => 'entity_lookup',
+              'source' => 'term',
+            ],
+          ],
+          'destination' => [
+            'plugin' => 'entity:node',
+          ],
+        ],
+        'expected' => [
+          'row 1' => [
+            'id' => 1,
+            'title' => 'content item 1',
+            $this->fieldName => [
+              [
+                'tid' => 1,
+                'name' => 'Grapes',
+              ],
+              [
+                'tid' => 2,
+                'name' => 'Apples',
+              ],
+            ],
+          ],
+        ],
+        'pre seed' => [
+          'taxonomy_term' => [
+            [
+              'name' => 'Grapes',
+              'vid' => $this->vocabulary,
+              'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
+            ],
+            [
+              'name' => 'Apples',
+              'vid' => $this->vocabulary,
+              'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
+            ],
+          ],
+        ],
+      ],
+      'lookup multiple mixed terms returns correct terms' => [
+        'definition' => [
+          'source' => [
+            'plugin' => 'embedded_data',
+            'data_rows' => [
+              [
+                'id' => 1,
+                'title' => 'content item 1',
+                'term' => [
+                  'Grapes',
+                  'Pears',
+                ],
+              ],
+            ],
+            'ids' => [
+              'id' => ['type' => 'integer'],
+            ],
+          ],
+          'process' => [
+            'id' => 'id',
+            'title' => 'title',
+            'type' => [
+              'plugin' => 'default_value',
+              'default_value' => $this->bundle,
+            ],
+            $this->fieldName => [
+              'plugin' => 'entity_lookup',
+              'source' => 'term',
+            ],
+          ],
+          'destination' => [
+            'plugin' => 'entity:node',
+          ],
+        ],
+        'expected' => [
+          'row 1' => [
+            'id' => '1',
+            'title' => 'content item 1',
+            $this->fieldName => [
+              [
+                'tid' => 1,
+                'name' => 'Grapes',
+              ],
+            ],
+          ],
+        ],
+        'pre seed' => [
+          'taxonomy_term' => [
+            [
+              'name' => 'Grapes',
+              'vid' => $this->vocabulary,
+              'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
+            ],
+            [
+              'name' => 'Apples',
+              'vid' => $this->vocabulary,
+              'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
+            ],
+          ],
+        ],
+      ],
+      'lookup with empty term value returns no terms' => [
+        'definition' => [
+          'source' => [
+            'plugin' => 'embedded_data',
+            'data_rows' => [
+              [
+                'id' => 1,
+                'title' => 'content item 1',
+                'term' => [],
+              ],
+            ],
+            'ids' => [
+              'id' => ['type' => 'integer'],
+            ],
+          ],
+          'process' => [
+            'id' => 'id',
+            'title' => 'title',
+            'type' => [
+              'plugin' => 'default_value',
+              'default_value' => $this->bundle,
+            ],
+            $this->fieldName => [
+              'plugin' => 'entity_lookup',
+              'source' => 'term',
+            ],
+          ],
+          'destination' => [
+            'plugin' => 'entity:node',
+          ],
+        ],
+        'expected' => [
+          'row 1' => [
+            'id' => 1,
+            'title' => 'content item 1',
+            $this->fieldName => [],
+          ],
+        ],
+        'pre seed' => [
+          'taxonomy_term' => [
+            'name' => 'Grapes',
+            'vid' => $this->vocabulary,
+            'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
+          ],
+        ],
+      ],
     ];
   }
 
@@ -415,4 +718,21 @@ class EntityGenerateTest extends KernelTestBase implements MigrateMessageInterfa
     $this->assertTrue($type == 'status', $message);
   }
 
+  /**
+   * Create pre-seed test data.
+   *
+   * @param string $storageName
+   *   The storage manager to create.
+   * @param array $values
+   *   The values to use when creating the entity.
+   */
+  private function createTestData($storageName, array $values) {
+    /** @var \Drupal\Core\Entity\ContentEntityStorageInterface $storage */
+    $storage = $this->container
+      ->get('entity_type.manager')
+      ->getStorage($storageName);
+    $entity = $storage->create($values);
+    $entity->save();
+  }
+
 }
-- 
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