public async Task SaveCommentsPolicyAsync(CommentsPolicy policy)
{
using (var transaction = db.Database.BeginTransaction())
{
await db.CommentsPolicies.Where(x => x.CourseId == policy.CourseId).DeleteAsync().ConfigureAwait(false);
db.CommentsPolicies.Add(policy);
await db.SaveChangesAsync().ConfigureAwait(false);
transaction.Commit();
}
}
public async Task SaveCommentsPolicy(CommentsPolicy policy)
{
using (var transaction = db.Database.BeginTransaction())
{
var query = db.CommentsPolicies.Where(x => x.CourseId == policy.CourseId);
if (query.Any())
{
db.CommentsPolicies.Remove(query.First());
await db.SaveChangesAsync();
}
db.CommentsPolicies.Add(policy);
await db.SaveChangesAsync();
transaction.Commit();
}
}
private async Task <bool> CanCommentNowAsync(string userId, string courseId, CommentsPolicy commentsPolicy)
{
/* Instructors have unlimited comments */
if (await courseRolesRepo.HasUserAccessToCourseAsync(userId, courseId, CourseRoleType.Instructor).ConfigureAwait(false))
{
return(true);
}
var isUserAddedMaxCommentsInLastTime = await commentsRepo.IsUserAddedMaxCommentsInLastTimeAsync(
userId,
commentsPolicy.MaxCommentsCountInLastTime,
commentsPolicy.LastTimeForMaxCommentsLimit
).ConfigureAwait(false);
return(!isUserAddedMaxCommentsInLastTime);
}
private async Task <bool> CanCommentHereAsync(string userId, string courseId, bool isReply, CommentsPolicy commentsPolicy)
{
var isInstructor = await courseRolesRepo.HasUserAccessToCourseAsync(userId, courseId, CourseRoleType.Instructor).ConfigureAwait(false);
if (!isInstructor && !commentsPolicy.IsCommentsEnabled)
{
return(false);
}
if (isReply && !isInstructor && commentsPolicy.OnlyInstructorsCanReply)
{
return(false);
}
return(true);
}
