public async Task <Result <CourseBookmarkDb> > DeleteAsync(CourseBookmarkDb bookmarkDb)
{
try
{
context.CourseBookmarks.Remove(bookmarkDb);
await context.SaveChangesAsync().ConfigureAwait(false);
return(Result <CourseBookmarkDb> .Ok(bookmarkDb));
}
catch (DbUpdateConcurrencyException e)
{
return(Result <CourseBookmarkDb> .Fail <CourseBookmarkDb>($"Bookmark not deleted. {e.Message}"));
}
catch (DbEntityValidationException e)
{
return(Result <CourseBookmarkDb> .Fail <CourseBookmarkDb>($"Invalid bookmark. {e.Message}"));
}
}
public async Task <Result <CourseBookmarkDb> > AddAsync(CourseBookmarkDb bookmarkDb)
{
try
{
context.CourseBookmarks.Add(bookmarkDb);
await context.SaveChangesAsync();
return(Result <CourseBookmarkDb> .Ok(bookmarkDb));
}
catch (DbUpdateConcurrencyException e)
{
return(Result <CourseBookmarkDb> .Fail <CourseBookmarkDb>($"Cannot save bookmark. {e.Message}"));
}
catch (DbUpdateException e)
{
return(Result <CourseBookmarkDb> .Fail <CourseBookmarkDb>($"Cannot save bookmark. Duplicate field. {e.Message}"));
}
catch (DbEntityValidationException e)
{
return(Result <CourseBookmarkDb> .Fail <CourseBookmarkDb>($"Invalid bookmark. {e.Message}"));
}
}