public ActionResult SlideComments(string courseId, Guid slideId, bool showOnlyInstructorsOnlyComments = false)
{
var slide = courseManager.GetCourse(courseId).GetSlideById(slideId);
var comments = commentsRepo.GetSlideComments(courseId, slideId).ToList();
var commentsPolicy = commentsRepo.GetCommentsPolicy(courseId);
var commentsByParent = comments.GroupBy(x => x.ParentCommentId)
.ToDictionary(x => x.Key, x => x.OrderBy(c => c.PublishTime).ToList());
/* Top-level comments (with ParentCommentId = -1)
* are sorting by publish time, but pinned comments are always higher */
List <Comment> topLevelComments;
if (commentsByParent.ContainsKey(-1))
{
topLevelComments = commentsByParent.Get(-1)
.OrderBy(x => !x.IsPinnedToTop).ThenBy(x => x.PublishTime).ToList();
}
else
{
topLevelComments = new List <Comment>();
}
var userId = User.Identity.GetUserId();
var commentsLikesCounts = commentsRepo.GetCommentsLikesCounts(comments);
var commentsLikedByUser = commentsRepo.GetSlideCommentsLikedByUser(courseId, slideId, userId).ToImmutableHashSet();
var isAuthorizedAndCanComment = CanAddCommentHere(User, courseId, false);
var canReply = CanAddCommentHere(User, courseId, true);
var canModerateComments = CanModerateComments(User, courseId);
var canSeeNotApprovedComments = canModerateComments;
var canViewAuthorSubmissions = coursesRepo.HasCourseAccess(userId, courseId, CourseAccessType.ViewAllStudentsSubmissions) || User.HasAccessFor(courseId, CourseRole.CourseAdmin);
var canViewProfiles = systemAccessesRepo.HasSystemAccess(userId, SystemAccessType.ViewAllProfiles) || User.IsSystemAdministrator();
var model = new SlideCommentsModel
{
CourseId = courseId,
Slide = slide,
IsAuthorizedAndCanComment = isAuthorizedAndCanComment,
CanReply = canReply,
CanModerateComments = canModerateComments,
CanSeeNotApprovedComments = canSeeNotApprovedComments,
CanViewAuthorSubmissions = canViewAuthorSubmissions,
TopLevelComments = topLevelComments,
CommentsByParent = commentsByParent,
CommentsLikesCounts = commentsLikesCounts,
CommentsLikedByUser = commentsLikedByUser,
CurrentUser = User.Identity.IsAuthenticated ? userManager.FindById(userId) : null,
CommentsPolicy = commentsPolicy,
CanViewAuthorProfiles = canViewProfiles,
CanViewAndAddCommentsForInstructorsOnly = CanViewAndAddCommentsForInstructorsOnly(User, courseId),
ShowOnlyInstructorsOnlyComments = showOnlyInstructorsOnlyComments
};
return(PartialView(model));
}
public ActionResult SlideComments(string courseId, Guid slideId)
{
var slide = courseManager.GetCourse(courseId).GetSlideById(slideId);
var comments = commentsRepo.GetSlideComments(courseId, slideId).ToList();
var commentsPolicy = commentsRepo.GetCommentsPolicy(courseId);
var commentsByParent = comments.GroupBy(x => x.ParentCommentId)
.ToDictionary(x => x.Key, x => x.OrderBy(c => c.PublishTime).ToList());
/* Top-level comments (with ParentCommentId = -1)
* are sorting by publish time, but pinned comments are always higher */
List <Comment> topLevelComments;
if (commentsByParent.ContainsKey(-1))
{
topLevelComments = commentsByParent.Get(-1)
.OrderBy(x => !x.IsPinnedToTop).ThenBy(x => x.PublishTime).ToList();
}
else
{
topLevelComments = new List <Comment>();
}
var commentsLikesCounts = commentsRepo.GetCommentsLikesCounts(comments);
var commentsLikedByUser = commentsRepo.GetSlideCommentsLikedByUser(courseId, slideId, User.Identity.GetUserId()).ToImmutableHashSet();
var isInstructor = User.HasAccessFor(courseId, CourseRole.Instructor);
var isAuthorizedAndCanComment = CanAddCommentHere(User, courseId, false);
var canReply = CanAddCommentHere(User, courseId, true);
var canModerateComments = User.Identity.IsAuthenticated && isInstructor;
var canSeeNotApprovedComments = User.Identity.IsAuthenticated && isInstructor;
var model = new SlideCommentsModel
{
CourseId = courseId,
Slide = slide,
IsAuthorizedAndCanComment = isAuthorizedAndCanComment,
CanReply = canReply,
CanModerateComments = canModerateComments,
CanSeeNotApprovedComments = canSeeNotApprovedComments,
TopLevelComments = topLevelComments,
CommentsByParent = commentsByParent,
CommentsLikesCounts = commentsLikesCounts,
CommentsLikedByUser = commentsLikedByUser,
CurrentUser = User.Identity.IsAuthenticated ? userManager.FindById(User.Identity.GetUserId()) : null,
CommentsPolicy = commentsPolicy,
};
return(PartialView(model));
}
private bool CanAddCommentHere(IPrincipal user, string courseId, bool isReply)
{
if (!User.Identity.IsAuthenticated)
{
return(false);
}
var commentsPolicy = commentsRepo.GetCommentsPolicy(courseId);
var isInstructor = user.HasAccessFor(courseId, CourseRole.Instructor);
if (!isInstructor && !commentsPolicy.IsCommentsEnabled)
{
return(false);
}
if (isReply && !isInstructor && commentsPolicy.OnlyInstructorsCanReply)
{
return(false);
}
return(true);
}