262 lines
12 KiB
C#
262 lines
12 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Web;
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using WeiSha.Common;
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using Song.ServiceInterfaces;
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using Song.Entities;
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using System.Data;
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using System.IO;
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namespace Song.Site
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{
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/// <summary>
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/// 课程学习（web端）
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/// </summary>
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public class CourseStudy : BasePage
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{
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//章节id,课程id
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int id = WeiSha.Common.Request.QueryString["olid"].Int32 ?? 0;
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int couid = WeiSha.Common.Request.QueryString["couid"].Int32 ?? 0;
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//状态值（来自地址栏），1为视频，2为内容，3为附件，4为试题
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int stateVal = WeiSha.Common.Request.QueryString["state"].Int32 ?? 0;
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//是否选学的当前课程，是否购买
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bool isStudy = false, isBuy = false;
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protected override void InitPageTemplate(HttpContext context)
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{
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Song.Entities.Course gmjl = Business.Do<ICourse>().CourseSingle(couid);
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//当前章节，如果章节id，则取课程第一个章节
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Song.Entities.Outline ol = id < 1 ?
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Business.Do<IOutline>().OutlineFirst(couid, true)
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: Business.Do<IOutline>().OutlineSingle(id);
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couid = couid > 0 ? couid : (ol != null ? ol.Cou_ID : 0);
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//当前课程
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Song.Entities.Course course = Business.Do<ICourse>().CourseSingle(couid);
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if (course == null || !course.Cou_IsUse) return;
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this.Document.Variables.SetValue("course", course);
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//如果章节为空，则不再后面的了
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if (ol == null) return;
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this.Document.Variables.SetValue("outline", ol);
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this.Document.Variables.SetValue("olid", ol.Ol_ID.ToString());
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//上级章节
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this.Document.Variables.SetValue("pat", Business.Do<IOutline>().OutlineSingle(ol.Ol_PID));
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Response.Cookies.Add(new HttpCookie("olid", ol.Ol_ID.ToString()));
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//当前课程
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//Song.Entities.Course course = Business.Do<ICourse>().CourseSingle(couid >0 ? couid : ol.Cou_ID);
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//if (course == null || !course.Cou_IsUse) return;
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//是否免费，或是限时免费
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if (course.Cou_IsLimitFree)
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{
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DateTime freeEnd = course.Cou_FreeEnd.AddDays(1).Date;
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if (!(course.Cou_FreeStart <= DateTime.Now && freeEnd >= DateTime.Now))
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course.Cou_IsLimitFree = false;
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}
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this.Document.Variables.SetValue("course", course);
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//判断是否允许在桌面应用中学习
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this.Document.Variables.SetValue("StudyForDeskapp", getForDeskapp(course, ol));
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//是否学习当前课程，如果没有学习且课程处于免费，则创建关联
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if (this.Account != null)
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{
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isStudy = Business.Do<ICourse>().Study(course.Cou_ID, this.Account.Ac_ID);
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isBuy = course.Cou_IsFree || course.Cou_IsLimitFree ? true : Business.Do<ICourse>().IsBuy(course.Cou_ID, this.Account.Ac_ID);
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}
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this.Document.Variables.SetValue("isStudy", isStudy);
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this.Document.Variables.SetValue("isBuy", isBuy);
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//是否可以学习,如果是免费或已经选修便可以学习，否则当前课程允许试用且当前章节是免费的，也可以学习
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bool canStudy = isBuy || (isStudy && ol.Ol_IsUse && ol.Ol_IsFinish && course.Cou_IsTry && ol.Ol_IsFree);
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this.Document.Variables.SetValue("canStudy", canStudy);
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//记录学员当前学习的课程
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if (isStudy) Extend.LoginState.Accounts.Course(course);
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#region 章节输出
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// 当前课程的所有章节
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Song.Entities.Outline[] outlines = Business.Do<IOutline>().OutlineAll(ol.Cou_ID, true);
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//课程章节列表
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this.Document.Variables.SetValue("outlines", outlines);
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//树形章节输出
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if (outlines.Length > 0)
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this.Document.Variables.SetValue("olTree", Business.Do<IOutline>().OutlineTree(outlines));
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#endregion
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#region 内容输出
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CourseContext_State state = new CourseContext_State();
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//视频
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Song.Entities.Accessory video = getVideo(ol.Ol_UID);
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this.Document.Variables.SetValue("video", video);
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if (video != null) state.Video = canStudy ? true : false;
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if (Extend.LoginState.Accounts.IsLogin)
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{
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Song.Entities.LogForStudentStudy studyLog = Business.Do<IStudent>().LogForStudySingle(this.Account.Ac_ID, ol.Ol_ID);
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if (studyLog != null)
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{
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this.Document.Variables.SetValue("studyLog", studyLog);
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double historyPlay = (double)studyLog.Lss_PlayTime / 1000;
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this.Document.Variables.SetValue("historyPlay", historyPlay);
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}
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}
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//内容
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if (!string.IsNullOrWhiteSpace(ol.Ol_Intro)) state.Context = canStudy ? true : false;
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//附件
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List<Song.Entities.Accessory> access = Business.Do<IAccessory>().GetAll(ol.Ol_UID, "Course");
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if (access.Count > 0)
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{
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foreach (Accessory ac in access)
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ac.As_FileName = Upload.Get["Course"].Virtual + ac.As_FileName;
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this.Document.Variables.SetValue("access", access);
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state.Attachment = canStudy ? true : false;
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}
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//当前章节是否有试题
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if (canStudy)
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{
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bool isQues = Business.Do<IOutline>().OutlineIsQues(ol.Ol_ID, true);
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if (isQues) state.Questions = canStudy ? true : false; ;
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}
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state.JudgeNull(stateVal);
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this.Document.Variables.SetValue("state", state);
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#endregion
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//章节事件
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OutlineEvent[] events = Business.Do<IOutline>().EventAll(-1, ol.Ol_ID, -1, true);
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this.Document.Variables.SetValue("events", events);
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this.Document.RegisterGlobalFunction(this.getEventQues);
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this.Document.RegisterGlobalFunction(this.getEventFeedback);
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this.Document.RegisterGlobalFunction(this.GetOrder);
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}
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/// <summary>
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/// 判断是否必须在桌面应用中学习
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/// </summary>
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/// <returns>如果为true，则必须在课面应用中学习</returns>
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private bool getForDeskapp(Song.Entities.Course course, Song.Entities.Outline ol)
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{
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//自定义配置项
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WeiSha.Common.CustomConfig config = CustomConfig.Load(this.Organ.Org_Config);
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//是否限制在桌面应用中学习
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bool studyFordesk = config["StudyForDeskapp"].Value.Boolean ?? false; //课程学习需要在桌面应用打开
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bool freeFordesk = config["FreeForDeskapp"].Value.Boolean ?? false; //免费课程和试用章节除外
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if (!WeiSha.Common.Browser.IsDestopApp)
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{
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if (!freeFordesk)
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{
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return studyFordesk && !WeiSha.Common.Browser.IsDestopApp;
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}
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else
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{
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if (course.Cou_IsFree || course.Cou_IsLimitFree) return false;
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if (ol.Ol_IsFree) return false;
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}
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}
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return true && !WeiSha.Common.Browser.IsDestopApp;
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}
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#region 章节事件用到的方法
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/// <summary>
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/// 获取视频的弹出试题选项内容
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/// </summary>
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/// <returns></returns>
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private DataTable getEventQues(object[] paras)
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{
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int oeid = 0;
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if (paras.Length > 0 && paras[0] is int)
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int.TryParse(paras[0].ToString(), out oeid);
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DataTable dt = Business.Do<IOutline>().EventQues(oeid);
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return dt;
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}
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/// <summary>
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/// 设置实时反馈的选项内容
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/// </summary>
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/// <returns></returns>
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private DataTable getEventFeedback(object[] paras)
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{
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int oeid = 0;
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if (paras.Length > 0 && paras[0] is int)
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int.TryParse(paras[0].ToString(), out oeid);
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DataTable dt = Business.Do<IOutline>().EventFeedback(oeid);
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return dt;
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}
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/// <summary>
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/// 获取序号
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/// </summary>
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/// <param name="index"></param>
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/// <returns></returns>
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protected object GetOrder(object[] index)
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{
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int tax = 0;
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if (index.Length > 0)
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tax = Convert.ToInt32(index[0]);
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return (char)(tax - 1 + 65);
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}
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#endregion
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/// <summary>
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/// 获取视频
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/// </summary>
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/// <param name="couUID"></param>
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/// <returns></returns>
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public static Song.Entities.Accessory getVideo(string couUID)
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{
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//视频
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List<Song.Entities.Accessory> videos = Business.Do<IAccessory>().GetAll(couUID, "CourseVideo");
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if (videos.Count <= 0) return null;
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Song.Entities.Accessory video = null;
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//如果是外部链接
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if (videos[0].As_IsOuter) video = videos[0];
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//如果是内部链接
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if (!videos[0].As_IsOuter)
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{
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videos[0].As_FileName = Upload.Get[videos[0].As_Type].Virtual + videos[0].As_FileName;
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string fileHy = WeiSha.Common.Server.MapPath(videos[0].As_FileName);
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if (!System.IO.File.Exists(fileHy))
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{
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string ext = System.IO.Path.GetExtension(fileHy).ToLower();
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if (ext == ".mp4") videos[0].As_FileName = Path.ChangeExtension(videos[0].As_FileName, ".flv");
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if (ext == ".flv") videos[0].As_FileName = Path.ChangeExtension(videos[0].As_FileName, ".mp4");
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}
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video = videos[0];
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}
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return video;
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}
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}
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/// <summary>
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/// 课程内容状态，例如有没有视频，有没有试题
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/// </summary>
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public class CourseContext_State
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{
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//视频,第一个指是否有内容，第二为状态是否该显示
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public bool Video { get; set; }
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public bool VideoState { get; set; }
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//内容
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public bool Context { get; set; }
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public bool ContextState { get; set; }
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//附件
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public bool Attachment { get; set; }
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public bool AttachmentState { get; set; }
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//试题
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public bool Questions { get; set; }
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public bool QuestionsState { get; set; }
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//没有任何内容
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public bool Null { get; set; }
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/// <summary>
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/// 判断是否是全没有内容
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/// </summary>
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/// <returns></returns>
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public bool JudgeNull(int stateVal)
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{
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this.VideoState = this.Video && stateVal == 1;
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this.ContextState = this.Context && stateVal == 2;
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this.AttachmentState = this.Attachment && stateVal == 3;
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this.QuestionsState = this.Questions && stateVal == 4;
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if (stateVal == 0)
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{
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if (this.Video) this.VideoState = true;
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if (this.Context) this.ContextState = true;
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if (this.Attachment) this.AttachmentState = true;
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if (this.Questions) this.QuestionsState = true;
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}
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//如果有一个不空，则不空
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this.Null = !(this.Video || this.Context || this.Attachment || this.Questions);
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return this.Null;
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}
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};
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}
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