# fromEntity method Null safety

dynamic fromEntity(

1. AppModel app,
2. OpenDialogEntity entity

)
override

## Implementation

    static Future<ActionModel> fromEntity(
        AppModel app, OpenDialogEntity entity) async {
      if (entity.appID == null) {
        throw Exception('entity OpenDialog.appID is null');
      }
      if (entity.dialogID == null) {
        throw Exception('entity OpenDialog.dialogID is null');
      }
      return OpenDialog(app,
          conditions: await DisplayConditionsModel.fromEntity(entity.conditions),
          dialogID: entity.dialogID!);
    }