class FieldInstance in Drupal 9

Drupal 6 field instances source from database.

Available configuration keys:

• node_type: (optional) The content type (machine name) to filter field instances retrieved from the source. If omitted, all field instances are retrieved.

Example:

source:
  plugin: d6_field_instance
  node_type: page

In this example field instances of type page are retrieved from the source database.

For additional configuration keys, refer to the parent classes:

Plugin annotation

@MigrateSource(
  id = "d6_field_instance",
  source_module = "content"
)

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
    • class \Drupal\migrate\Plugin\migrate\source\SourcePluginBase implements RollbackAwareInterface, MigrateSourceInterface
      • class \Drupal\migrate\Plugin\migrate\source\SqlBase implements ContainerFactoryPluginInterface, RequirementsInterface
        • class \Drupal\migrate_drupal\Plugin\migrate\source\DrupalSqlBase implements DependentPluginInterface uses DependencyTrait
          • class \Drupal\field\Plugin\migrate\source\d6\FieldInstance

See also

\Drupal\migrate\Plugin\migrate\source\SqlBase

\Drupal\migrate\Plugin\migrate\source\SourcePluginBase

1 file declares its use of FieldInstance

FieldDiscoveryTest.php in core/modules/migrate_drupal/tests/src/Kernel/d6/FieldDiscoveryTest.php

File

core/modules/field/src/Plugin/migrate/source/d6/FieldInstance.php, line 38

Namespace

Drupal\field\Plugin\migrate\source\d6

class FieldInstance extends DrupalSqlBase {

  /**
   * {@inheritdoc}
   */
  public function query() {
    $query = $this
      ->select('content_node_field_instance', 'cnfi')
      ->fields('cnfi');
    if (isset($this->configuration['node_type'])) {
      $query
        ->condition('cnfi.type_name', $this->configuration['node_type']);
    }
    $query
      ->join('content_node_field', 'cnf', '[cnf].[field_name] = [cnfi].[field_name]');
    $query
      ->fields('cnf');
    $query
      ->orderBy('cnfi.field_name');
    $query
      ->orderBy('cnfi.type_name');
    return $query;
  }

  /**
   * {@inheritdoc}
   */
  public function fields() {
    return [
      'field_name' => $this
        ->t('The machine name of field.'),
      'type_name' => $this
        ->t('Content type where this field is in use.'),
      'weight' => $this
        ->t('Weight.'),
      'label' => $this
        ->t('A name to show.'),
      'widget_type' => $this
        ->t('Widget type.'),
      'widget_settings' => $this
        ->t('Serialize data with widget settings.'),
      'display_settings' => $this
        ->t('Serialize data with display settings.'),
      'description' => $this
        ->t('A description of field.'),
      'widget_module' => $this
        ->t('Module that implements widget.'),
      'widget_active' => $this
        ->t('Status of widget'),
      'module' => $this
        ->t('The module that provides the field.'),
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function prepareRow(Row $row) {

    // Unserialize data.
    $widget_settings = unserialize($row
      ->getSourceProperty('widget_settings'));
    $display_settings = unserialize($row
      ->getSourceProperty('display_settings'));
    $global_settings = unserialize($row
      ->getSourceProperty('global_settings'));
    $row
      ->setSourceProperty('widget_settings', $widget_settings);
    $row
      ->setSourceProperty('display_settings', $display_settings);
    $row
      ->setSourceProperty('global_settings', $global_settings);

    // Determine the translatable setting.
    $translatable = TRUE;
    $synchronized_fields = $this
      ->variableGet('i18nsync_nodeapi_' . $row
      ->getSourceProperty('type_name'), NULL);
    if ($synchronized_fields) {
      if (in_array($row
        ->getSourceProperty('field_name'), $synchronized_fields)) {
        $translatable = FALSE;
      }
    }
    $row
      ->setSourceProperty('translatable', $translatable);
    return parent::prepareRow($row);
  }

  /**
   * {@inheritdoc}
   */
  public function getIds() {
    $ids = [
      'field_name' => [
        'type' => 'string',
        'alias' => 'cnfi',
      ],
      'type_name' => [
        'type' => 'string',
      ],
    ];
    return $ids;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_entityStorages	protected	property
DependencySerializationTrait::$_serviceIds	protected	property
DependencySerializationTrait::__wakeup	public	function		2
DependencyTrait::$dependencies	protected	property	The object's dependencies.
DependencyTrait::addDependencies	protected	function	Adds multiple dependencies.
DependencyTrait::addDependency	protected	function	Adds a dependency.
DrupalSqlBase::$entityTypeManager	protected	property	The entity type manager.
DrupalSqlBase::$requirements	protected	property	If the source provider is missing.
DrupalSqlBase::$systemData	protected	property	The contents of the system table.
DrupalSqlBase::calculateDependencies	public	function	Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies	1
DrupalSqlBase::checkRequirements	public	function	Checks if requirements for this plugin are OK. Overrides SqlBase::checkRequirements	4
DrupalSqlBase::create	public static	function	Creates an instance of the plugin. Overrides SqlBase::create	3
DrupalSqlBase::getModuleSchemaVersion	protected	function	Retrieves a module schema_version from the source Drupal database.
DrupalSqlBase::getSystemData	public	function	Retrieves all system data information from the source Drupal database.
DrupalSqlBase::moduleExists	protected	function	Checks if a given module is enabled in the source Drupal database.
DrupalSqlBase::variableGet	protected	function	Reads a variable from a source Drupal database.
DrupalSqlBase::__construct	public	function	Constructs a \Drupal\Component\Plugin\PluginBase object. Overrides SqlBase::__construct	6
FieldInstance::fields	public	function	Returns available fields on the source. Overrides MigrateSourceInterface::fields
FieldInstance::getIds	public	function	Defines the source fields uniquely identifying a source row. Overrides MigrateSourceInterface::getIds
FieldInstance::prepareRow	public	function	Adds additional data to the row. Overrides SourcePluginBase::prepareRow
FieldInstance::query	public	function	Overrides SqlBase::query
MessengerTrait::$messenger	protected	property	The messenger.	27
MessengerTrait::messenger	public	function	Gets the messenger.	27
MessengerTrait::setMessenger	public	function	Sets the messenger.
MigrateSourceInterface::NOT_COUNTABLE		constant	Indicates that the source is not countable.
PluginBase::$configuration	protected	property	Configuration information passed into the plugin.	1
PluginBase::$pluginDefinition	protected	property	The plugin implementation definition.	1
PluginBase::$pluginId	protected	property	The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR		constant	A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId	public	function	Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId	public	function	Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition	2
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable	public	function	Determines if the plugin is configurable.
SourcePluginBase::$cache	protected	property	The backend cache.
SourcePluginBase::$cacheCounts	protected	property	Whether this instance should cache the source count.	1
SourcePluginBase::$cacheKey	protected	property	Key to use for caching counts.
SourcePluginBase::$currentRow	protected	property	The current row from the query.
SourcePluginBase::$currentSourceIds	protected	property	The primary key of the current row.
SourcePluginBase::$highWaterProperty	protected	property	Information on the property used as the high-water mark.
SourcePluginBase::$highWaterStorage	protected	property	The key-value storage for the high-water value.
SourcePluginBase::$idMap	protected	property	The migration ID map.
SourcePluginBase::$iterator	protected	property	The iterator to iterate over the source rows.
SourcePluginBase::$mapRowAdded	protected	property	Flags whether source plugin will read the map row and add to data row.
SourcePluginBase::$migration	protected	property	The entity migration object.
SourcePluginBase::$moduleHandler	protected	property	The module handler service.	2
SourcePluginBase::$originalHighWater	protected	property	The high water mark at the beginning of the import operation.
SourcePluginBase::$skipCount	protected	property	Whether this instance should not attempt to count the source.	1
SourcePluginBase::$trackChanges	protected	property	Flags whether to track changes to incoming data.	1
SourcePluginBase::aboveHighwater	protected	function	Check if the incoming data is newer than what we've previously imported.
SourcePluginBase::count	public	function	Gets the source count.	9
SourcePluginBase::current	public	function
SourcePluginBase::getCache	protected	function	Gets the cache object.
SourcePluginBase::getCurrentIds	public	function	Gets the currentSourceIds data member.
SourcePluginBase::getHighWater	protected	function	The current value of the high water mark.
SourcePluginBase::getHighWaterField	protected	function	Get the name of the field used as the high watermark.
SourcePluginBase::getHighWaterProperty	protected	function	Get information on the property used as the high watermark.
SourcePluginBase::getHighWaterStorage	protected	function	Get the high water storage object.
SourcePluginBase::getIterator	protected	function	Returns the iterator that will yield the row arrays to be processed.
SourcePluginBase::getModuleHandler	protected	function	Gets the module handler.
SourcePluginBase::getSourceModule	public	function	Gets the source module providing the source data. Overrides MigrateSourceInterface::getSourceModule
SourcePluginBase::key	public	function	Gets the iterator key.
SourcePluginBase::next	public	function
SourcePluginBase::postRollback	public	function	Performs post-rollback tasks. Overrides RollbackAwareInterface::postRollback
SourcePluginBase::preRollback	public	function	Performs pre-rollback tasks. Overrides RollbackAwareInterface::preRollback
SourcePluginBase::rewind	public	function	Rewinds the iterator.
SourcePluginBase::rowChanged	protected	function	Checks if the incoming row has changed since our last import.
SourcePluginBase::saveHighWater	protected	function	Save the new high water mark.
SourcePluginBase::valid	public	function	Checks whether the iterator is currently valid.
SqlBase::$batch	protected	property	The count of the number of batches run.
SqlBase::$batchSize	protected	property	Number of records to fetch from the database during each batch.
SqlBase::$database	protected	property	The database object.	1
SqlBase::$query	protected	property	The query string.
SqlBase::$state	protected	property	State service for retrieving database info.
SqlBase::doCount	protected	function	Gets the source count using countQuery(). Overrides SourcePluginBase::doCount
SqlBase::fetchNextBatch	protected	function	Prepares query for the next set of data from the source database.
SqlBase::fetchNextRow	protected	function	Position the iterator to the following row. Overrides SourcePluginBase::fetchNextRow
SqlBase::getDatabase	public	function	Gets the database connection object.	2
SqlBase::initializeIterator	protected	function	Initializes the iterator with the source data. Overrides SourcePluginBase::initializeIterator	18
SqlBase::mapJoinable	protected	function	Checks if we can join against the map table.	1
SqlBase::prepareQuery	protected	function	Adds tags and metadata to the query.
SqlBase::select	protected	function	Wrapper for database select.
SqlBase::setUpDatabase	protected	function	Gets a connection to the referenced database.
SqlBase::__sleep	public	function	Overrides DependencySerializationTrait::__sleep
SqlBase::__toString	public	function	Prints the query string when the object is used as a string. Overrides MigrateSourceInterface::__toString
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	4
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.