matchMorphOneOrMany method

List<Map<String, dynamic>> matchMorphOneOrMany(List<Map<String, dynamic>> models, List<Map<String, dynamic>> results, String relation, String parentKey, String relatedIdKey, String typeKey, String expectedType,)

Match one related morph model to parents (for hasOne polymorphic relation). Only includes results where typeKey equals expectedType and returns only the first matching result.

Implementation

List<Map<String, dynamic>> matchMorphOneOrMany(
  List<Map<String, dynamic>> models,
  List<Map<String, dynamic>> results,
  String relation,
  String parentKey,
  String relatedIdKey,
  String typeKey,
  String expectedType,
) {
  Map<String, Map<String, dynamic>> dictionary = {};
  final type = expectedType.toLowerCase();
  for (var result in results) {
    if (result[typeKey]?.toString().toLowerCase() == type) {
      String key = result[relatedIdKey].toString();
      if (!dictionary.containsKey(key)) {
        dictionary[key] = result;
      }
    }
  }
  models = models.map((model) {
    String key = model[parentKey].toString();
    Map<String, dynamic> cloneModel = Map.from(model);
    if (dictionary.containsKey(key)) {
      cloneModel[relation] = dictionary[key];
    } else {
      cloneModel[relation] = null;
    }
    return cloneModel;
  }).toList();

  return models;
}