constructFromMetadata static method

dynamic constructFromMetadata(List<Object> metadata)

creates the information from the given annotations meta data

Implementation

static constructFromMetadata(List<Object> metadata) {
  FieldDataType?  foundType;
  bool      foundNullable     = false;
  bool      foundIsPrimary    = false;

  for (final annotation in metadata) {
    switch (annotation) {
      case annotation_tags.primary:
        foundIsPrimary = true;
        break;
      case annotation_tags.nullable:
        foundNullable = true;
        break;

      case annotation_tags.integer:
        foundType = FieldDataType.integer;
        break;
      case annotation_tags.float:
        foundType = FieldDataType.float;
        break;
      case annotation_tags.text:
        foundType = FieldDataType.text;
        break;
      case annotation_tags.boolean:
        foundType = FieldDataType.boolean;
        break;
      case annotation_tags.date:
        foundType = FieldDataType.date;
        break;
    }
  }

  if (foundType == null) throw "found no type annotations";

  return FieldTypeInfo(
    dataType:     foundType,
    isNullable:   foundNullable,
    isPrimaryKey: foundIsPrimary,
  );
}