protected void Page_Load(object sender, EventArgs e)
{
if (Session["currentUser"] == null)
{
Response.Redirect("Login.aspx");
}
else
{
User currentUser = (User)Session["currentUser"];
Course_elearnDAO ceDAO = new Course_elearnDAO();
Course_elearn currentCourse = ceDAO.get_course_by_id(Convert.ToInt32(Request.QueryString["id"]));
Boolean superuser = false;
Boolean course_creator = false;
foreach (string s in currentUser.getRoles())
{
if (s.Equals("superuser"))
{
superuser = true;
}
else if (s.Equals("course creator"))
{
course_creator = true;
}
}
if (currentUser.getUserID() != currentCourse.getCourseCreator().getUserID() && !(superuser || course_creator))
{
Response.Redirect("errorPage.aspx");
}
else
{
if (!IsPostBack)
{
moduleType.SelectedValue = currentCourse.getCategoryID().ToString();
ddlCourseType.SelectedValue = currentCourse.getCourseType();
nameOfModuleInput.Text = currentCourse.getCourseName();
lblBreadcrumbCourseName.Text = currentCourse.getCourseName();
descriptionModuleInput.Text = currentCourse.getDescription();
hoursInput.Text = currentCourse.getHoursAwarded().ToString();
if (currentCourse.getTargetAudience() != null)
{
txtTargetAudience.Text = currentCourse.getTargetAudience().ToString();
}
fromDateInput.Text = currentCourse.getStartDate().ToString("dd/MM/yyyy");
toDateInput.Text = currentCourse.getExpiryDate().ToString("dd/MM/yyyy");
//prerequisites
ArrayList allPrerequisites = currentCourse.getPrerequisite();
List <int> prereqIDlist = new List <int>();
foreach (Course_elearn prereq in allPrerequisites)
{
prereqIDlist.Add(prereq.getCourseID());
}
Session["selectedPrereq"] = prereqIDlist;
var itemIDs = string.Join(",", ((IList <int>)Session["selectedPrereq"]).ToArray());
//postrequisites
List <int> postReqIDList = getAllPostRequisiteCourses(currentCourse.getCourseID());
List <int> postReqIDListNoDup = new List <int>();
foreach (int postreqID in postReqIDList)
{
if (!postReqIDListNoDup.Contains(postreqID) && postReqIDList.Contains(postreqID))
{
postReqIDListNoDup.Add(postreqID);
}
}
Session["selectedPostreq"] = postReqIDListNoDup;
var itemIDs2 = string.Join(",", ((IList <int>)Session["selectedPostreq"]).ToArray());
//to load course list
var sqlQueryCourseList = "";
if (itemIDs.Length > 0 && itemIDs2.Length > 0)
{
sqlQueryCourseList = String.Format("SELECT * FROM [Elearn_course] ec INNER JOIN [Elearn_courseCategory] ecc ON ec.categoryID = ecc.categoryID WHERE ec.status='active' and ec.start_date<=getDate() and ec.expiry_date>=getDate() and ec.elearn_courseID NOT IN ({0}) and ec.elearn_courseID NOT IN ({1}) and ec.courseType='Online Learning' and ec.elearn_courseID != " + currentCourse.getCourseID(), itemIDs, itemIDs2);
}
else if (itemIDs.Length > 0 && itemIDs2.Length < 1)
{
sqlQueryCourseList = String.Format("SELECT * FROM [Elearn_course] ec INNER JOIN [Elearn_courseCategory] ecc ON ec.categoryID = ecc.categoryID WHERE ec.status='active' and ec.start_date<=getDate() and ec.expiry_date>=getDate() and ec.elearn_courseID NOT IN ({0}) and ec.courseType='Online Learning' and ec.elearn_courseID != " + currentCourse.getCourseID(), itemIDs);
}
else if (itemIDs.Length < 1 && itemIDs2.Length > 0)
{
sqlQueryCourseList = String.Format("SELECT * FROM [Elearn_course] ec INNER JOIN [Elearn_courseCategory] ecc ON ec.categoryID = ecc.categoryID WHERE ec.status='active' and ec.start_date<=getDate() and ec.expiry_date>=getDate() and ec.elearn_courseID NOT IN ({0}) and ec.courseType='Online Learning' and ec.elearn_courseID != " + currentCourse.getCourseID(), itemIDs2);
}
else
{
sqlQueryCourseList = String.Format("SELECT * FROM [Elearn_course] ec INNER JOIN [Elearn_courseCategory] ecc ON ec.categoryID = ecc.categoryID WHERE ec.status='active' and ec.start_date<=getDate() and ec.expiry_date>=getDate() and ec.courseType='Online Learning' and ec.elearn_courseID != " + currentCourse.getCourseID());
}
SqlDataSource1.SelectCommand = sqlQueryCourseList;
gvPrereq.DataSource = SqlDataSource1;
gvPrereq.DataBind();
gvPrereq.UseAccessibleHeader = true;
if (gvPrereq.Rows.Count > 0)
{
gvPrereq.HeaderRow.TableSection = TableRowSection.TableHeader;
}
//to load prereq cart
var sqlQuery = "";
if (itemIDs.Length > 0)
{
sqlQuery = String.Format("SELECT * FROM [Elearn_course] WHERE [elearn_courseID] IN ({0}) and elearn_courseID != " + currentCourse.getCourseID(), itemIDs);
}
else
{
sqlQuery = "SELECT * FROM [Elearn_course] WHERE [elearn_courseID] = -1";
}
SqlDataSourcePrereqCart.SelectCommand = sqlQuery;
gvPrereqCart.DataSource = SqlDataSourcePrereqCart;
gvPrereqCart.DataBind();
Session["currentMod"] = nameOfModuleInput.Text;
}
}
}
}