public async Task <IActionResult> RandomVariant(long key)
{
var variants = await _db.TaskVariants
.Where(variant => variant.TaskModule.Id == key)
.Select(variant => variant.Id)
.ToArrayAsync();
if (variants.Length == 0)
{
return(new NotFoundResult());
}
var variantId = variants[new Random().Next(0, variants.Length)];
var selectedVariant = await _db.TaskVariants
.Include(v => v.TaskModule)
.SingleAsync(v => v.Id == variantId);
var result = new ContentResult
{
StatusCode = StatusCodes.Status200OK,
ContentType = "application/json",
Content = TaskVariantConverter.ToJson(selectedVariant)
};
return(result);
}
public TaskVariantsController(GraphLabsContext context, TaskVariantConverter taskVariantConverter)
{
_db = context;
_taskVariantConverter = taskVariantConverter;
}
