class Variable

Same name in this branch
  1. 8.9.x core/lib/Drupal/Component/Utility/Variable.php \Drupal\Component\Utility\Variable
Same name in other branches
  1. 9 core/modules/migrate_drupal/src/Plugin/migrate/source/Variable.php \Drupal\migrate_drupal\Plugin\migrate\source\Variable
  2. 9 core/lib/Drupal/Component/Utility/Variable.php \Drupal\Component\Utility\Variable
  3. 10 core/modules/migrate_drupal/src/Plugin/migrate/source/Variable.php \Drupal\migrate_drupal\Plugin\migrate\source\Variable
  4. 10 core/lib/Drupal/Component/Utility/Variable.php \Drupal\Component\Utility\Variable
  5. 11.x core/modules/migrate_drupal/src/Plugin/migrate/source/Variable.php \Drupal\migrate_drupal\Plugin\migrate\source\Variable
  6. 11.x core/lib/Drupal/Component/Utility/Variable.php \Drupal\Component\Utility\Variable

Drupal variable source from database.

This source class always returns a single row and as such is not a good example for any normal source class returning multiple rows.

Plugin annotation


@MigrateSource(
  id = "variable",
  source_module = "system",
)

Hierarchy

Expanded class hierarchy of Variable

3 files declare their use of Variable
ContactSettings.php in core/modules/contact/src/Plugin/migrate/source/ContactSettings.php
SearchPage.php in core/modules/search/src/Plugin/migrate/source/d6/SearchPage.php
SearchPage.php in core/modules/search/src/Plugin/migrate/source/d7/SearchPage.php
62 string references to 'Variable'
action_settings.yml in core/modules/action/migrations/action_settings.yml
core/modules/action/migrations/action_settings.yml
book_settings.yml in core/modules/book/migrations/book_settings.yml
core/modules/book/migrations/book_settings.yml
d6_aggregator_settings.yml in core/modules/aggregator/migrations/d6_aggregator_settings.yml
core/modules/aggregator/migrations/d6_aggregator_settings.yml
d6_dblog_settings.yml in core/modules/dblog/migrations/d6_dblog_settings.yml
core/modules/dblog/migrations/d6_dblog_settings.yml
d6_forum_settings.yml in core/modules/forum/migrations/d6_forum_settings.yml
core/modules/forum/migrations/d6_forum_settings.yml

... See full list

File

core/modules/migrate_drupal/src/Plugin/migrate/source/Variable.php, line 20

Namespace

Drupal\migrate_drupal\Plugin\migrate\source
View source
class Variable extends DrupalSqlBase {
    
    /**
     * The variable names to fetch.
     *
     * @var array
     */
    protected $variables;
    
    /**
     * {@inheritdoc}
     */
    public function __construct(array $configuration, $plugin_id, $plugin_definition, MigrationInterface $migration, StateInterface $state, EntityTypeManagerInterface $entity_type_manager) {
        parent::__construct($configuration, $plugin_id, $plugin_definition, $migration, $state, $entity_type_manager);
        $this->variables = $this->configuration['variables'];
    }
    
    /**
     * {@inheritdoc}
     */
    protected function initializeIterator() {
        return new \ArrayIterator([
            $this->values(),
        ]);
    }
    
    /**
     * Return the values of the variables specified in the plugin configuration.
     *
     * @return array
     *   An associative array where the keys are the variables specified in the
     *   plugin configuration and the values are the values found in the source.
     *   Only those values are returned that are actually in the database.
     */
    protected function values() {
        // Create an ID field so we can record migration in the map table.
        // Arbitrarily, use the first variable name.
        $values['id'] = reset($this->variables);
        return $values + array_map('unserialize', $this->prepareQuery()
            ->execute()
            ->fetchAllKeyed());
    }
    
    /**
     * {@inheritdoc}
     */
    public function count($refresh = FALSE) {
        // Variable always returns a single row with at minimum an 'id' property.
        return 1;
    }
    
    /**
     * {@inheritdoc}
     */
    public function fields() {
        return array_combine($this->variables, $this->variables);
    }
    
    /**
     * {@inheritdoc}
     */
    public function query() {
        return $this->getDatabase()
            ->select('variable', 'v')
            ->fields('v', [
            'name',
            'value',
        ])
            ->condition('name', $this->variables, 'IN');
    }
    
    /**
     * {@inheritdoc}
     */
    public function getIds() {
        $ids['id']['type'] = 'string';
        return $ids;
    }

}

Members

Title Sort descending Modifiers Object type Summary Overriden Title Overrides
DependencyTrait::$dependencies protected property The object's dependencies.
DependencyTrait::addDependencies protected function Adds multiple dependencies.
DependencyTrait::addDependency protected function Adds a dependency.
DeprecatedServicePropertyTrait::__get public function Allows to access deprecated/removed properties.
DrupalSqlBase::$deprecatedProperties protected property 1
DrupalSqlBase::$entityTypeManager protected property The entity type manager.
DrupalSqlBase::$requirements protected property If the source provider is missing.
DrupalSqlBase::$systemData protected property The contents of the system table.
DrupalSqlBase::calculateDependencies public function Calculates dependencies for the configured plugin. Overrides DependentPluginInterface::calculateDependencies 1
DrupalSqlBase::checkRequirements public function Checks if requirements for this plugin are OK. Overrides SqlBase::checkRequirements 2
DrupalSqlBase::create public static function Creates an instance of the plugin. Overrides SqlBase::create 3
DrupalSqlBase::getModuleSchemaVersion protected function Retrieves a module schema_version from the source Drupal database.
DrupalSqlBase::getSystemData public function Retrieves all system data information from the source Drupal database.
DrupalSqlBase::moduleExists protected function Checks if a given module is enabled in the source Drupal database.
DrupalSqlBase::variableGet protected function Reads a variable from a source Drupal database.
PluginInspectionInterface::getPluginDefinition public function Gets the definition of the plugin implementation. 6
PluginInspectionInterface::getPluginId public function Gets the plugin_id of the plugin instance. 2
SourcePluginBase::$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::current public function
SourcePluginBase::doCount protected function Gets the source count checking if the source is countable or using the
iterator_count function.
1
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. 1
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 The migration iterates over rows returned by the source plugin. This
method determines the next row which will be processed and imported into
the system.
SourcePluginBase::postRollback public function Performs post-rollback tasks. Overrides RollbackAwareInterface::postRollback
SourcePluginBase::prepareRow public function Adds additional data to the row. Overrides MigrateSourceInterface::prepareRow 50
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. 82
SqlBase::$state protected property State service for retrieving database info.
SqlBase::fetchNextBatch protected function Prepares query for the next set of data from the source database.
SqlBase::fetchNextRow protected function Position the iterator to the following row. Overrides SourcePluginBase::fetchNextRow
SqlBase::getDatabase public function Gets the database connection object. 2
SqlBase::mapJoinable protected function Checks if we can join against the map table. 1
SqlBase::prepareQuery protected function Adds tags and metadata to the query.
SqlBase::select protected function Wrapper for database select.
SqlBase::setUpDatabase protected function Gets a connection to the referenced database.
SqlBase::__toString public function Prints the query string when the object is used as a string. Overrides MigrateSourceInterface::__toString
Variable::$variables protected property The variable names to fetch.
Variable::count public function Gets the source count. Overrides SqlBase::count 1
Variable::fields public function Returns available fields on the source. Overrides MigrateSourceInterface::fields 2
Variable::getIds public function Defines the source fields uniquely identifying a source row. Overrides MigrateSourceInterface::getIds 2
Variable::initializeIterator protected function Initializes the iterator with the source data. Overrides SqlBase::initializeIterator 2
Variable::query public function Overrides SqlBase::query
Variable::values protected function Return the values of the variables specified in the plugin configuration. 2
Variable::__construct public function Overrides DrupalSqlBase::__construct

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