# fromMap method Null safety

DocumentEntity? fromMap(

1. Object? o,
2. {Map<String, String>? newDocumentIds}

)

## Implementation

    static DocumentEntity? fromMap(Object? o,
        {Map<String, String>? newDocumentIds}) {
      if (o == null) return null;
      var map = o as Map<String, dynamic>;

      var imagesFromMap = map['images'];
      List<DocumentItemEntity> imagesList;
      if (imagesFromMap != null) {
        imagesList = (map['images'] as List<dynamic>)
            .map((dynamic item) => DocumentItemEntity.fromMap(item as Map,
                newDocumentIds: newDocumentIds)!)
            .toList();
      } else {
        imagesList = [];
      }
      var backgroundFromMap = map['background'];
      if (backgroundFromMap != null) {
        backgroundFromMap = BackgroundEntity.fromMap(backgroundFromMap,
            newDocumentIds: newDocumentIds);
      }
      var conditionsFromMap = map['conditions'];
      if (conditionsFromMap != null) {
        conditionsFromMap = StorageConditionsEntity.fromMap(conditionsFromMap,
            newDocumentIds: newDocumentIds);
      }

      return DocumentEntity(
        appId: map['appId'],
        description: map['description'],
        content: map['content'],
        padding: double.tryParse(map['padding'].toString()),
        images: imagesList,
        background: backgroundFromMap,
        conditions: conditionsFromMap,
      );
    }