Version 1

[yaffs-website] / web / core / modules / migrate / src / Plugin / migrate / source / DummyQueryTrait.php

diff --git a/web/core/modules/migrate/src/Plugin/migrate/source/DummyQueryTrait.php b/web/core/modules/migrate/src/Plugin/migrate/source/DummyQueryTrait.php
new file mode 100644 (file)
index 0000000..b77f95e
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+++ b/web/core/modules/migrate/src/Plugin/migrate/source/DummyQueryTrait.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Drupal\migrate\Plugin\migrate\source;
+
+/**
+ * Provides a dummy select query object for source plugins.
+ *
+ * Trait providing a dummy select query object for source plugins based on
+ * SqlBase which override initializeIterator() to obtain their data from other
+ * SqlBase services instead of a direct query. This ensures that query() returns
+ * a valid object, even though it is not used for iteration.
+ */
+trait DummyQueryTrait {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function query() {
+    // Pass an arbritrary table name - the query should never be executed
+    // anyway.
+    $query = $this->select(uniqid(), 's')
+      ->range(0, 1);
+    $query->addExpression('1');
+    return $query;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function count() {
+    return 1;
+  }
+
+}