/// <summary>
/// Load up voew obj with an existing lesson
/// </summary>
/// <param name="obj"></param>
/// <returns>LessonCreateViewModel</returns>
public LessonCreateViewModel Load(LessonModel obj)
{
var model = new LessonCreateViewModel();
LessonID = obj.ID;
Title = obj.Title;
Intro = obj.IntroText;
Text = db.LessonDataModels.FirstOrDefault(f => f.ID == obj.LessonDataID).Placeholder;
if (obj.HasVideo)
{
VideoLink = obj.VideoHtml;
}
WorkList = db.WorkModels.Select(x =>
new SelectListItem {
Text = x.Title, Value = x.ID.ToString()
}).ToList();
WorkID = obj.WorkID;
PreviousLessonList = db.LessonModels.Select(x =>
new SelectListItem {
Text = x.Title, Value = x.ID.ToString()
}).ToList();
PreviousID = obj.PreviousLessonIDs;
NextLessonList = db.LessonModels.Select(x =>
new SelectListItem {
Text = x.Title, Value = x.ID.ToString()
}).ToList();
NextID = obj.NextLessonIDs;
return(model);
}
/// <summary>
/// Save editied lesson
/// </summary>
/// <param name="obj"></param>
public void Save(LessonCreateViewModel obj)
{
var data = new LessonDataModel()
{
Placeholder = obj.Text
};
db.Entry(data).State = EntityState.Modified;
// save the lesson data and get the primary key
// awkward, but functional
int dataID = db.LessonDataModels.FirstOrDefault(f => f.Placeholder == data.Placeholder).ID;
bool hasVid = false;
if (obj.VideoLink.Length > 0)
{
hasVid = true;
}
int lesID = db.LessonModels.FirstOrDefault(f => f.ID == obj.LessonID).ID;
var model = new LessonModel()
{
Title = obj.Title,
IntroText = obj.Intro,
LessonDataID = dataID,
HasVideo = hasVid,
VideoHtml = obj.VideoLink ?? null,
NextLessonIDs = obj.NextID ?? 0,
PreviousLessonIDs = obj.PreviousID ?? 0,
WorkID = obj.WorkID ?? 0,
};
if (lesID > 0)
{
model.ID = lesID;
}
;
// save the lesson
if (model.ID > 0)
{
db.Entry(model).State = EntityState.Modified;
db.SaveChanges();
}
else
{
db.LessonModels.Add(model);
db.SaveChanges();
}
}
/// <summary>
/// Load up an empty view to be used
/// </summary>
/// <param></param>
/// <returns>LessonCreateViewModel</returns>
public LessonCreateViewModel Load()
{
var model = new LessonCreateViewModel();
Title = "Insert Title Here";
Intro = "Intro Text Goes Here";
Text = "Lesson Text Goes Here";
WorkList = db.WorkModels.Select(x =>
new SelectListItem {
Text = x.InstructorNotes, Value = x.ID.ToString()
}).ToList();
PreviousLessonList = db.LessonModels.Select(x =>
new SelectListItem {
Text = x.Title, Value = x.ID.ToString()
}).ToList();
NextLessonList = db.LessonModels.Select(x =>
new SelectListItem {
Text = x.Title, Value = x.ID.ToString()
}).ToList();
return(model);
}
