public IActionResult AddRemoveTechnicians(int id)
{
AddRemoveTechniciansViewModel addRemoveTechniciansViewModel = new AddRemoveTechniciansViewModel {
Id = id,
AvailableTechnicians = this.technicianService.GetAllNamesOfTechniciansNotWorkingOnAGivenTask(id).GetAwaiter().GetResult().ToArray(),
TechniciansWorkingOnRepairTask = this.technicianService.GetAllNamesOfTechniciansWorkingOnAGivenTask(id).ToArray()
};
return(this.View(addRemoveTechniciansViewModel));
}
public async Task <IActionResult> AddRemoveTechnicians(AddRemoveTechniciansViewModel addRemoveTechniciansViewModel, int id)
{
if (ModelState.IsValid == false)
{
return(this.View(addRemoveTechniciansViewModel));
}
foreach (string nameOfTechnicianToAdd in addRemoveTechniciansViewModel.TechniciansToAdd) /*Here the order is VERY IMPORTANT. Adding of technicians
* must be the first operation since the removing of
* technicians checks whether there are any technicians
* left to work on the task. If there are none, the status
* of the task is changed to PENDING. Hence, if the adding
* is done after the removing and the changing of the
* status there is a conflict (we have a PENDING Repair Task
* that has a Technician assigned to it).*/
{
await this.repairTaskService.AddTechnicianToRepairTaskAsync(nameOfTechnicianToAdd, id);
}
foreach (string nameOfTechnicianToRemove in addRemoveTechniciansViewModel.TechniciansToRemove)
{
await this.repairTaskService.RemoveTechnicianFromRepairTaskAsync(nameOfTechnicianToRemove, id);
}
return(this.RedirectToAction(StringConstants.ActionNameRepairTaskDetails, new { id }));
}
