protected void Page_Load(object sender, EventArgs e)
{
Song.Entities.Accounts st = this.Master.Account;
if (st == null)
{
return;
}
org = Business.Do <IOrganization>().OrganCurrent();
dtLog = Business.Do <IStudent>().StudentStudyCourseLog(org.Org_ID, this.Master.Account.Ac_ID);
if (!this.IsPostBack)
{
BindData(null, null);
}
//此页面的ajax提交，全部采用了POST方式
if (Request.ServerVariables["REQUEST_METHOD"] == "POST")
{
string action = WeiSha.Common.Request.Form["action"].String.ToLower();
string couid = WeiSha.Common.Request.Form["couid"].String.ToLower();
string json = string.Empty;
switch (action)
{
case "getstc":
Song.Entities.Student_Course stc = GetStc(couid);
if (stc == null)
{
json = "{\"success\":\"0\"}";
}
else
{
json = "{\"success\":\"1\",data:" + stc.ToJson() + "}";
}
break;
}
Response.Write(json);
Response.End();
}
}
/// <summary>
/// 学习卡使用后的回滚，将删除学员的关联课程
/// </summary>
/// <param name="entity"></param>
/// <param name="isclear">是否清理学习记录</param>
public void CardRollback(LearningCard entity, bool isclear)
{
//只是领用，但未使用
if (entity.Lc_IsUsed && entity.Lc_State == 0)
{
//标注状态为回滚
entity.Lc_State = -1;
Gateway.Default.Save <LearningCard>(entity);
}
//真正使用过，回滚较复杂
if (entity.Lc_IsUsed && entity.Lc_State == 1)
{
LearningCardSet set = this.SetSingle(entity.Lcs_ID);
//学习时间的起始时间
int day = entity.Lc_Span;
if (day <= 0)
{
if (set.Lcs_Unit == "日" || set.Lcs_Unit == "天")
{
day = set.Lcs_Span;
}
if (set.Lcs_Unit == "周")
{
day = set.Lcs_Span * 7;
}
if (set.Lcs_Unit == "月")
{
day = set.Lcs_Span * 30;
}
if (set.Lcs_Unit == "年")
{
day = set.Lcs_Span * 365;
}
}
//关联的课程
Course[] courses = this.CoursesGet(set.Lcs_RelatedCourses);
using (DbTrans tran = Gateway.Default.BeginTrans())
{
try
{
foreach (Course cou in courses)
{
Song.Entities.Student_Course sc = tran.From <Student_Course>().Where(Student_Course._.Ac_ID == entity.Ac_ID &&
Student_Course._.Cou_ID == cou.Cou_ID).ToFirst <Student_Course>();
if (sc == null)
{
continue;
}
//扣除学习卡所增加的时间，计算出学习结束时间
DateTime end = sc.Stc_EndTime.AddDays(-day);
if (sc.Stc_StartTime < end)
{
//如果扣除学习卡增加的时间后，仍然大于开始时间，则更改
tran.Update <Student_Course>(new Field[] { Student_Course._.Stc_EndTime }, new object[] { end },
Student_Course._.Ac_ID == entity.Ac_ID && Student_Course._.Cou_ID == cou.Cou_ID);
}
else
{
//如果扣除学习卡增加的时间后，小于开始时间，则直接删除课程
tran.Delete <Student_Course>(Student_Course._.Ac_ID == entity.Ac_ID && Student_Course._.Cou_ID == cou.Cou_ID);
if (isclear)
{
_cardRollback_clear(entity.Ac_ID, cou.Cou_ID);
}
tran.Update <Accounts>(new Field[] { Accounts._.Ac_CurrCourse }, new object[] { -1 },
Accounts._.Ac_ID == entity.Ac_ID && Accounts._.Ac_CurrCourse == cou.Cou_ID);
}
}
entity.Lc_State = -1;
tran.Save <LearningCard>(entity);
tran.Commit();
Extend.LoginState.Accounts.Refresh(entity.Ac_ID);
}
catch (Exception ex)
{
tran.Rollback();
throw ex;
}
finally
{
tran.Close();
}
}
}
}
/// <summary>
/// 使用该学习卡
/// </summary>
/// <param name="card">学习卡</param>
/// <param name="acc">学员账号</param>
public void CardUse(LearningCard card, Accounts acc)
{
if (card.Lc_State != 0)
{
throw new Exception("该学习卡已经使用");
}
LearningCardSet set = this.SetSingle(card.Lcs_ID);
if (set == null || set.Lcs_IsEnable == false)
{
throw new Exception("该学习卡不可使用");
}
//是否过期
if (!(DateTime.Now > card.Lc_LimitStart && DateTime.Now < card.Lc_LimitEnd.Date.AddDays(1)))
{
throw new Exception("该学习卡已经过期");
}
//设置学习卡的使用信息
card.Lc_UsedTime = DateTime.Now;
card.Lc_State = 1; //状态，0为初始，1为使用，-1为回滚
card.Ac_ID = acc.Ac_ID;
card.Ac_AccName = acc.Ac_AccName;
using (DbTrans tran = Gateway.Default.BeginTrans())
{
//学习时间的起始时间
DateTime start = DateTime.Now, end = DateTime.Now;
if (set.Lcs_Unit == "日" || set.Lcs_Unit == "天")
{
end = start.AddDays(set.Lcs_Span);
}
if (set.Lcs_Unit == "周")
{
end = start.AddDays(set.Lcs_Span * 7);
}
if (set.Lcs_Unit == "月")
{
end = start.AddMonths(set.Lcs_Span);
}
if (set.Lcs_Unit == "年")
{
end = start.AddYears(set.Lcs_Span);
}
int span = (end - start).Days;
try
{
Course[] courses = this.CoursesGet(set.Lcs_RelatedCourses);
foreach (Course cou in courses)
{
Song.Entities.Student_Course sc = null;
sc = tran.From <Student_Course>().Where(Student_Course._.Ac_ID == card.Ac_ID &&
Student_Course._.Cou_ID == cou.Cou_ID).ToFirst <Student_Course>();
if (sc != null)
{
//如果是免费或试用
if (sc.Stc_IsFree || sc.Stc_IsTry)
{
sc.Stc_StartTime = start;
sc.Stc_EndTime = end;
}
else
{
//已经过期，则重新设置时间
if (sc.Stc_EndTime < DateTime.Now)
{
sc.Stc_StartTime = start;
sc.Stc_EndTime = end;
}
else
{
//如果未过期，则续期
sc.Stc_EndTime = sc.Stc_EndTime.AddDays(span);
}
}
}
else
{
sc = new Student_Course();
sc.Stc_CrtTime = DateTime.Now;
sc.Stc_StartTime = start;
sc.Stc_EndTime = end;
}
sc.Ac_ID = card.Ac_ID;
sc.Cou_ID = cou.Cou_ID;
sc.Stc_Money = card.Lc_Price;
sc.Org_ID = card.Org_ID;
sc.Stc_IsFree = sc.Stc_IsTry = false;
tran.Save <Student_Course>(sc);
}
//使用数量加1
set.Lsc_UsedCount = tran.Count <LearningCard>(LearningCard._.Lcs_ID == set.Lcs_ID && LearningCard._.Lc_IsUsed == true);
set.Lsc_UsedCount = card.Lc_IsUsed ? set.Lsc_UsedCount : set.Lsc_UsedCount + 1;
tran.Save <LearningCardSet>(set);
//标注学习卡已经使用
card.Lc_IsUsed = true;
card.Lc_Span = span; //记录学习卡使后，增加的学习时间（单位：天），方便回滚扣除
tran.Save <LearningCard>(card);
tran.Commit();
}
catch (Exception ex)
{
tran.Rollback();
throw ex;
}
finally
{
tran.Close();
}
}
}