/// <summary>
/// Create a StaffCohortAssociation object
/// </summary>
/// <param name="cs">the service to use for this action</param>
/// <param name="associations">the StaffCohortAssociation to create</param>
/// <returns>result of this action</returns>
public static async Task<ActionResponseResult> CreateOneStaffCohortAssociation(CohortService cs, string cId, string sId)
{
var a = new StaffCohortAssociation { cohortId = cId, staffId = sId, beginDate = DateTime.Now };
var result = await cs.CreateStaffCohortAssociation(a);
return GlobalHelper.GetActionResponseResult(sId, "", result, HttpStatusCode.Created);
}