/**
* 获取班级信息
*
* @return List<ClassInfoModel> 班级信息列表
*/
public static List<ClassInfoModel> getClassInfoModels() {
List<ClassInfoModel> classInfoModels = new ArrayList<ClassInfoModel>();
DataManager dataManager = DBUtil.getDataManager();
try {
// 刻意使用一个局部变量作为承载，若返回空，catch，并直接返回空列表，杜绝外部空的可能
List<ClassInfoModel> localClassInfoModels =
dataManager.getList(ClassInfoModel.class, null, null);
classInfoModels.addAll(localClassInfoModels);
} catch (Exception e) {
}
return classInfoModels;
}
/**
* 保存班级信息列表
*
* @param classInfoModels 班级信息列表
*/
public static void saveClassInfoModels(List<ClassInfoModel> classInfoModels) {
if (classInfoModels != null) {
DataManager dataManager = DBUtil.getDataManager();
dataManager.beginTransaction();
try {
dataManager.delete(ClassInfoModel.class, null, null);
for (ClassInfoModel classInfoModel : classInfoModels) {
if (classInfoModel != null) {
dataManager.save(classInfoModel);
}
}
dataManager.endTransaction();
} catch (Exception e) {
dataManager.rollBack();
}
}
}