/// <summary>
/// Manages the resources.
/// </summary>
private async void ManageResources()
{
ManageResourcesContentDialog.DataContext = CourseResources;
var result = await ManageResourcesContentDialog.ShowAsync();
var selectedCourse = (Course)CoursesListView.SelectedItem;
if (result != ContentDialogResult.Primary)
{
if (result == ContentDialogResult.Secondary)
{
UpdateCourseResources(selectedCourse);
}
}
else
{
if (selectedCourse == null)
{
return;
}
foreach (var selectedCourseResource in selectedCourse.Resources.ToArray())
{
if (CourseResources.All(r => r.ResourceId != selectedCourseResource.ResourceId))
{
await DeleteCourseResource(selectedCourseResource, selectedCourse);
}
}
foreach (var courseResource in CourseResources)
{
if (courseResource.ResourceId == 0)
{
await AddCourseResource(courseResource, selectedCourse);
}
else
{
var originalResource =
selectedCourse.Resources.Find(r => r.ResourceId == courseResource.ResourceId);
if (originalResource.Name == courseResource.Name &&
originalResource.Link == courseResource.Link)
{
continue;
}
await UpdateCourseResource(courseResource);
originalResource.Name = courseResource.Name;
originalResource.Link = courseResource.Link;
}
}
}
}
/// <summary>
/// Updates the course resources.
/// </summary>
/// <param name="course">The course.</param>
private void UpdateCourseResources(Course course)
{
if (course == null)
{
return;
}
CourseResources.Clear();
foreach (var r in course.Resources)
{
CourseResources.Add(new Resource {
ResourceId = r.ResourceId, Name = r.Name, Link = r.Link
});
}
}
public async Task <IActionResult> Upload(List <IFormFile> files, int course_id, int lecture_id)
{
long size = files.Sum(f => f.Length);
var filePaths = new List <string>();
foreach (var formFile in files)
{
if (formFile.Length > 0)
{
//Create the new filename
var new_filename = course_id.ToString() + "_" + lecture_id.ToString() + "_" + formFile.FileName;
var course_resource = new CourseResources
{
Original_Name = formFile.FileName,
Generated_Name = new_filename,
Course_Id = course_id,
Lecture_Id = lecture_id
};
_context.CourseResources.Add(course_resource);
_context.SaveChanges();
var filePath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot\\Course_Resources", new_filename);
filePaths.Add(filePath);
using var stream = new FileStream(filePath, FileMode.Create);
await formFile.CopyToAsync(stream);
}
}
// process uploaded files
// Don't rely on or trust the FileName property without validation.
return(RedirectToAction("Details", "Trainings", new { id = course_id }));
}
public async Task <IActionResult> OnGetAsync(int?id)
{
int ID = (int)id;
CurrentCourse = await courseDbContext.Courses.SingleOrDefaultAsync(m => m.ID == ID);
if (CurrentCourse != null)
{
var tempList = await courseResourceDbContext.Resources.ToListAsync();
foreach (var resource in tempList)
{
if (resource.CourseID == ID)
{
CourseResources.Add(resource);
}
}
return(Page());
}
else
{
return(RedirectToPage("/NotFound"));
}
}
/// <summary> /// Removes the resource. /// </summary> /// <param name="sender">The sender.</param> /// <param name="e">The <see cref="RoutedEventArgs" /> instance containing the event data.</param> private void RemoveResource(object sender, RoutedEventArgs e) => CourseResources.Remove((Resource)ManageResourcesListView.SelectedItem);
/// <summary>
/// Adds the resource.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="RoutedEventArgs" /> instance containing the event data.</param>
private void AddResource(object sender, RoutedEventArgs e) => CourseResources.Add(new Resource {
Name = "New Resource"
});