RealmQueryExample.kt

  @JvmStatic
  fun <T : RealmObject> filterAccess(query: RealmQuery<T>): RealmQuery<T> {
    val roles = DCUserManager.getRoles().toTypedArray()
    fun RealmQuery<T>.operationTypeIs(operationType: String) {
      equalTo(RealmUtil.getField(ModelWithType.FIELD_ACCESS, AccessModel.FIELD_OPERATION), operationType)
    }

    fun RealmQuery<T>.hasAnyOfRoles(roles: Array<Int>) {
      oneOf(RealmUtil.getField(ModelWithType.FIELD_ACCESS, AccessModel.FIELD_ROLES, IntObject.FIELD_VALUE), roles)
    }

    return query.build {
      group {
        isEmpty(ModelWithType.FIELD_ACCESS)
        or
        group {
          isNotEmpty(ModelWithType.FIELD_ACCESS)
          and
          group {
            group {
              operationTypeIs(AccessModel.OPERATION_HIDE)
              and
              not {
                hasAnyOfRoles(roles)
              }
            }
            or
            group {
              not {
                operationTypeIs(AccessModel.OPERATION_HIDE)
              }
              and
              hasAnyOfRoles(roles)
            }
          }
        }
      }
    }
  }
}