Version 1

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

diff --git a/web/core/modules/migrate/src/Plugin/MigrateSourceInterface.php b/web/core/modules/migrate/src/Plugin/MigrateSourceInterface.php
new file mode 100644 (file)
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+++ b/web/core/modules/migrate/src/Plugin/MigrateSourceInterface.php
@@ -0,0 +1,103 @@
+<?php
+
+namespace Drupal\migrate\Plugin;
+
+use Drupal\Component\Plugin\PluginInspectionInterface;
+use Drupal\migrate\Row;
+
+/**
+ * Defines an interface for migrate sources.
+ *
+ * @see \Drupal\migrate\Plugin\MigratePluginManager
+ * @see \Drupal\migrate\Annotation\MigrateSource
+ * @see \Drupal\migrate\Plugin\migrate\source\SourcePluginBase
+ * @see plugin_api
+ *
+ * @ingroup migration
+ */
+interface MigrateSourceInterface extends \Countable, \Iterator, PluginInspectionInterface {
+
+  /**
+   * Returns available fields on the source.
+   *
+   * @return array
+   *   Available fields in the source, keys are the field machine names as used
+   *   in field mappings, values are descriptions.
+   */
+  public function fields();
+
+  /**
+   * Adds additional data to the row.
+   *
+   * @param \Drupal\Migrate\Row $row
+   *   The row object.
+   *
+   * @return bool
+   *   FALSE if this row needs to be skipped.
+   */
+  public function prepareRow(Row $row);
+
+  /**
+   * Allows class to decide how it will react when it is treated like a string.
+   */
+  public function __toString();
+
+  /**
+   * Defines the source fields uniquely identifying a source row.
+   *
+   * None of these fields should contain a NULL value. If necessary, use
+   * prepareRow() or hook_migrate_prepare_row() to rewrite NULL values to
+   * appropriate empty values (such as '' or 0).
+   *
+   * @return array[]
+   *   An associative array of field definitions keyed by field ID. Values are
+   *   associative arrays with a structure that contains the field type ('type'
+   *   key). The other keys are the field storage settings as they are returned
+   *   by FieldStorageDefinitionInterface::getSettings(). As an example, for a
+   *   composite source primary key that is defined by an integer and a
+   *   string, the returned value might look like:
+   *   @code
+   *     return [
+   *       'id' => [
+   *         'type' => 'integer',
+   *         'unsigned' => FALSE,
+   *         'size' => 'big',
+   *       ],
+   *       'version' => [
+   *         'type' => 'string',
+   *         'max_length' => 64,
+   *         'is_ascii' => TRUE,
+   *       ],
+   *     ];
+   *   @endcode
+   *   If 'type' points to a field plugin with multiple columns and needs to
+   *   refer to a column different than 'value', the key of that column will be
+   *   appended as a suffix to the plugin name, separated by dot ('.'). Example:
+   *   @code
+   *     return [
+   *       'format' => [
+   *         'type' => 'text.format',
+   *       ],
+   *     ];
+   *   @endcode
+   *   Additional custom keys/values, that are not part of field storage
+   *   definition, can be passed in definitions. The most common setting, passed
+   *   along the ID definition, is 'alias' used by SqlBase source plugin:
+   *   @code
+   *     return [
+   *       'nid' => [
+   *         'type' => 'integer',
+   *         'alias' => 'n',
+   *       ],
+   *     ];
+   *   @endcode
+   *
+   * @see \Drupal\Core\Field\FieldStorageDefinitionInterface::getSettings()
+   * @see \Drupal\Core\Field\Plugin\Field\FieldType\IntegerItem
+   * @see \Drupal\Core\Field\Plugin\Field\FieldType\StringItem
+   * @see \Drupal\text\Plugin\Field\FieldType\TextItem
+   * @see \Drupal\migrate\Plugin\migrate\source\SqlBase
+   */
+  public function getIds();
+
+}