Issue #3271100 by idimopoulos: Not all field properties appear in the entity type edit form

    if ($field_name === $id_key) {

      continue;

    }

    $columns = $base_field->getColumns();

    foreach ($columns as $column_name => $column) {

      $title = $base_field->getLabel();

      if (count($columns) > 1) {

        $title .= ' (' . $column_name . ')';

      }

    $title = $base_field->getLabel();

    $form['sparql_entity_storage']['base_fields_mapping'][$field_name] = [

      '#type' => 'details',

      '#title' => $title,

      '#description' => $base_field->getDescription(),

    ];

    $columns = $base_field->getColumns();

    foreach ($columns as $column_name => $column) {

      $column_title = $base_field->getLabel();

      if (count($columns) > 1) {

        $column_title = $title . ' (' . $column_name . ')';

      }

      $has_mapping = $mapping && $mapping->getMapping($field_name, $column_name);

      $form['sparql_entity_storage']['base_fields_mapping'][$field_name][$column_name]['predicate'] = [

        '#type' => 'url',

        '#title' => t('Mapping'),

        '#title' => t(':field_title mapping', [

          ':field_title' => $column_title,

        ]),

        '#description' => t('The RDF predicate.'),

        '#weight' => 150,

        '#default_value' => $mapping ? $mapping->getMapping($field_name, $column_name)['predicate'] : NULL,

        '#default_value' => $has_mapping ? $mapping->getMapping($field_name, $column_name)['predicate'] : NULL,

      ];

      $form['sparql_entity_storage']['base_fields_mapping'][$field_name][$column_name]['format'] = [

        '#type' => 'select',

        '#title' => t('Value format'),

        '#title' => t(':field_title value format', [

          ':field_title' => $column_title,

        ]),

        '#description' => t('The RDF format. Required if format is filled.'),

        '#options' => SparqlEntityStorageFieldHandler::getSupportedDataTypes(),

        '#empty_value' => '',

        '#weight' => 151,

        '#default_value' => $mapping ? $mapping->getMapping($field_name, $column_name)['format'] : NULL,

        '#default_value' => $has_mapping ? $mapping->getMapping($field_name, $column_name)['format'] : NULL,

      ];

    }

  }