public IActionResult StudentsAjax(DateTime date)
{
if (cache.Contains(date))
{
var vertretungsplan = cache.Find(date);
var tag = helper.GenerateETagSingle(vertretungsplan, User.Identity.Name, true);
return(cachingHelper.UseETag(tag) ?? PartialView("Students", helper.GenerateViewModel(VertretungsplanType.Students, vertretungsplan)));
}
else
{
return(new StatusCodeResult(StatusCodes.Status404NotFound));
}
}
public IActionResult Get(DateTime date)
{
var vertretungsplan = cache.Find(date);
if (vertretungsplan == null)
{
return(NotFound());
}
return(Ok(vertretungsplan));
}
async Task LoadDataFromApi()
{
var response = await client.GetAsync("/dates?metadata");
if (!response.IsSuccessStatusCode)
{
return;
}
var json = await response.Content.ReadAsStringAsync();
var dates = JsonConvert.DeserializeObject <List <VertretungsplanMetadata> >(json);
if (dates == null)
{
return;
}
foreach (var loaded in dates)
{
var cached = cache.Find(loaded.Date);
var dateExists = cached != null;
// New or more recent than existing version
if (!dateExists || loaded.LastUpdated > cached.LastUpdated || loaded.Version > cached.Version)
{
var dateResponse = await client.GetAsync("/dates/" + loaded.Date.ToString("yyyy-MM-dd"));
var dateJson = await dateResponse.Content.ReadAsStringAsync();
var vp = JsonConvert.DeserializeObject <Vertretungsplan>(dateJson);
cache.Add(vp);
}
}
var oldDates = cache.GetAllDates().Except(dates.Select(vp => vp.Date)).ToList();
foreach (var old in oldDates)
{
cache.Remove(old);
}
}