// POST: odata/Roles
public async Task<IHttpActionResult> Post(Role role)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
// Get the list of claim ids
var newClaims = role.Claims.Select(x => x.Id);
role.Claims = new List<Claim>();
// We need to attach the existing claims from the database and not from the client
role.Claims.AddRange(db.Claims.Where(x => newClaims.Contains(x.Id)));
db.Roles.Add(role);
try
{
await db.SaveChangesAsync();
}
catch (DbUpdateException)
{
if (RoleExists(role.Id))
{
return Conflict();
}
throw;
}
return Created(role);
}
// PUT: odata/Roles(5)
public async Task<IHttpActionResult> Put([FromODataUri] string key, Role newRole)
{
if (!ModelState.IsValid)
{
return BadRequest(ModelState);
}
var existingRole = db.Roles.Find(key);
if (existingRole == null)
{
return NotFound();
}
db.Entry(existingRole).Collection(x => x.Claims).Load();
var claimIds = newRole.Claims.Select(x => x.Id).ToList();
newRole.Claims = new List<Claim>();
// Remove claims not in the list
existingRole.Claims.RemoveAll(x => !claimIds.Contains(x.Id));
// Find the ids of the claims we need to add
var existingClaimIds = new HashSet<Guid>(existingRole.Claims.Select(x => x.Id));
var claimIdsToAdd = claimIds.Where(x => !existingClaimIds.Contains(x));
// Add the claims to the newRole
foreach (var claim in db.Claims.Where(x => claimIdsToAdd.Contains(x.Id)))
{
existingRole.Claims.Add(claim);
}
// Overwrite the existing newRole values to the new newRole values
db.Entry(existingRole).CurrentValues.SetValues(newRole);
try
{
await db.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!RoleExists(key))
{
return NotFound();
}
throw;
}
return Updated(newRole);
}