/// <summary>
/// 业务数据检测
/// </summary>
protected override void Validate()
{
//课程标题为空时
if (string.IsNullOrWhiteSpace(Title))
{
AddBrokenRule(NewCourseFailureRule.TITLE_CANNOT_NULL_OR_EMPTY);
}
//课程内容为空时
if (string.IsNullOrWhiteSpace(Content))
{
AddBrokenRule(NewCourseFailureRule.CONTENT_CANNOT_NULL_OR_EMPTY);
}
//学习目标为空时
if (string.IsNullOrWhiteSpace(Objective))
{
AddBrokenRule(NewCourseFailureRule.OBJECTIVE_CANNOT_NULL_OR_EMPTY);
}
//所属科目不存在时
if (!SubjectsAccessor.Exists(SubjectId))
{
AddBrokenRule(NewCourseFailureRule.SUBJECT_NOT_EXISTS);
}
//创建课程的用户不存在时
if (!UsersAccessor.Exists(UserId))
{
AddBrokenRule(NewCourseFailureRule.CREATER_NOT_EXISTS);
}
}
/// <summary>
/// 修改信息
/// </summary>
/// <param name="state">将要修改后的状态</param>
/// <returns></returns>
public bool ModifyTo(CourseModifiedState state)
{
if (state == null)
{
return(false);
}
ThrowExceptionIfValidateFailure(() =>
{
//是否允许被编辑
if (CanModify())
{
//课程标题为空时
if (string.IsNullOrWhiteSpace(state.Title))
{
AddBrokenRule(CourseManageFailureRule.TITLE_CANNOT_NULL_OR_EMPTY);
}
//课程内容为空时
if (string.IsNullOrWhiteSpace(state.Content))
{
AddBrokenRule(CourseManageFailureRule.CONTENT_CANNOT_NULL_OR_EMPTY);
}
//学习目标为空时
if (string.IsNullOrWhiteSpace(state.Objective))
{
AddBrokenRule(CourseManageFailureRule.OBJECTIVE_CANNOT_NULL_OR_EMPTY);
}
//所属科目不存在时
if (!SubjectsAccessor.Exists(state.SubjectId))
{
AddBrokenRule(CourseManageFailureRule.SUBJECT_NOT_EXISTS);
}
}
else
{
AddBrokenRule(CourseManageFailureRule.CANNOT_MODIFY);
}
});
//映射数据实体对象后存储
var editCourse = TransferNewFor(state);
bool success = CourseAccessor.Update(editCourse);
if (success && Course.Status != state.Status)
{
ComputeStudyProgress(ID);
}
return(success);
}