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trait DummyQueryTrait in Drupal 8

Same name and namespace in other branches
  1. 9 core/modules/migrate/src/Plugin/migrate/source/DummyQueryTrait.php \Drupal\migrate\Plugin\migrate\source\DummyQueryTrait

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.

Hierarchy

3 files declare their use of DummyQueryTrait
CommentVariable.php in core/modules/comment/src/Plugin/migrate/source/d6/CommentVariable.php
UploadInstance.php in core/modules/file/src/Plugin/migrate/source/d6/UploadInstance.php
UserPictureInstance.php in core/modules/user/src/Plugin/migrate/source/UserPictureInstance.php

File

core/modules/migrate/src/Plugin/migrate/source/DummyQueryTrait.php, line 13

Namespace

Drupal\migrate\Plugin\migrate\source
View source 
trait DummyQueryTrait {

  /**
   * {@inheritdoc}
   */
  public function query() {

    // Pass an arbitrary 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($refresh = FALSE) {
    return 1;
  }

}

Members

Namesort descending Modifiers Type Description Overrides
DummyQueryTrait::count public function 2
DummyQueryTrait::query public function