saveCacheObjectToList static method

Future<bool> saveCacheObjectToList(String key, CacheObject cacheObject, String keyField, { bool overwrite = true, bool deleteOnError = true, int? limit, })

Implementation

static Future<bool> saveCacheObjectToList(
    String key, CacheObject cacheObject, String keyField,
    {bool overwrite = true, bool deleteOnError = true, int? limit}) async {
  try {
    if (getSharedPreferences().containsKey(key)) {
      List<String> values = getSharedPreferences().getStringList(key)!;
      List<String> newValues = [];
      bool foundInOld = false;
      values.forEach((element) {
        if (jsonDecode(_reApplyCacheKey(element))[keyField] ==
            cacheObject.getData()[keyField]) {
          foundInOld = true;
          if (overwrite) {
            newValues.add(_applyCacheKey(jsonEncode(cacheObject.getData())));
          } else {
            newValues.add(element);
          }
        } else {
          newValues.add(element);
        }
      });
      if (!foundInOld) {
        newValues.add(_applyCacheKey(jsonEncode(cacheObject.getData())));
      }
      if (limit != null && limit > 0) {
        while (newValues.length > limit) {
          newValues.removeAt(0);
        }
      }
      await getSharedPreferences().setStringList(key, newValues);
      return true;
    } else {
      if (await getSharedPreferences().setStringList(
          key, [_applyCacheKey(jsonEncode(cacheObject.getData()))])) {
        return true;
      }
    }
  } catch (e) {
    if (deleteOnError) {
      print("CacheHandler: Delete Key: " + key);
      await removeCacheObject(key);
    }
    print(e);
  }
  return false;
}