public async Task<IHttpActionResult> PutClass(UpdateClassBindingModel uclassvm)
{
if(!ModelState.IsValid)
{
return BadRequest(ModelState);
}
try
{
await _classManager.UpdateClass(uclassvm);
}
catch(Exception ex)
{
throw new HttpResponseException(Request.CreateErrorResponse(HttpStatusCode.NotFound, ex.Message));
}
return StatusCode(HttpStatusCode.NoContent);
}
/// <summary>
/// Updates a class using details in the given model
/// </summary>
/// <param name="ucbm">Model containing details of the class to update</param>
public async Task UpdateClass(UpdateClassBindingModel ucbm)
{
// Find the class and update its properties
var @class = await _db.Classes.FindAsync(ucbm.Id);
if(@class == null)
{
throw new Exception("No class with id: " + ucbm.Id);
}
// Update attributes
@class.Title = ucbm.Title;
@class.Prefix = ucbm.Prefix;
@class.CourseNumber = ucbm.CourseNumber;
@class.Section = ucbm.Section;
@class.GradeDistribution = ucbm.GradeDistribution;
_db.Entry(@class).State = EntityState.Modified;
try
{
await _db.SaveChangesAsync();
}
catch(DbUpdateConcurrencyException)
{
// Deleted before update maybe?
if(!ClassExists(@class.Id))
{
throw new Exception("No class with id: " + ucbm.Id);
}
}
}
