public function WineFileBlobMigration::__construct in Migrate 7.2

General initialization of a Migration object.

Overrides AdvancedExampleMigration::__construct

File

migrate_example/wine.inc, line 237

Advanced migration examples. These serve two purposes:

Class

WineFileBlobMigration

Migration class to test importing from a BLOB column into a file entity.

Code

public function __construct($arguments) {
  parent::__construct($arguments);
  $this->description = t('Example migration from BLOB column into files.');
  $query = db_select('migrate_example_wine_blobs', 'wf')
    ->fields('wf', array(
    'imageid',
    'imageblob',
  ));
  $this->source = new MigrateSourceSQL($query);

  // Note that the WineFileCopyMigration example let the second argument,
  // the file_class, default to MigrateFileUri, indicating that the
  // 'value' we're passing was a URI. In this case, we're passing a blob, so
  // tell the destination to expect it.
  $this->destination = new MigrateDestinationFile('file', 'MigrateFileBlob');
  $this->map = new MigrateSQLMap($this->machineName, array(
    'imageid' => array(
      'type' => 'int',
      'unsigned' => TRUE,
      'not null' => TRUE,
      'description' => 'Image ID.',
    ),
  ), MigrateDestinationFile::getKeySchema());

  // Basic fields
  $this
    ->addFieldMapping('value', 'imageblob')
    ->description('An image blob in the DB');

  // The destination filename must be specified for blobs
  $this
    ->addFieldMapping('destination_file')
    ->defaultValue('druplicon.png');
  $this
    ->addFieldMapping('uid')
    ->defaultValue(1);

  // Unmapped destination fields
  $this
    ->addUnmigratedDestinations(array(
    'destination_dir',
    'fid',
    'file_replace',
    'preserve_files',
    'timestamp',
  ));
  $this
    ->removeFieldMapping('pathauto');
}