public async Task <DepartmentCreateResult> Create(DepartmentCreateParameters parameters)
{
var validationResult = await Validate(0, parameters);
var manager = await _dbContext.Employees.FindAsync(parameters.ManagerId);
if (validationResult != DepartmentValidationStatus.Success)
{
return(new DepartmentCreateResult
{
Status = validationResult
});
}
var result = await _dbContext.Departments.AddAsync(new Department()
{
Employees = new List <Employee>(),
Manager = manager,
Name = parameters.Name,
});
await _dbContext.SaveChangesAsync();
var department = result.Entity;
if (manager == null)
{
return(new DepartmentCreateResult
{
Data = new DepartmentViewResult
{
Id = department.Id,
Name = department.Name,
}
});
}
else
{
return(new DepartmentCreateResult
{
Data = new DepartmentViewResult
{
Id = department.Id,
Name = department.Name,
ManagerName = manager.Name
}
});
}
}
public async Task <DepartmentUpdateResult> Update(int id, DepartmentCreateParameters parameters)
{
var validationResult = await Validate(id, parameters);
if (validationResult != DepartmentValidationStatus.Success)
{
return(new DepartmentUpdateResult(validationResult));
}
var department = await _dbContext.Departments
.Include(d => d.Manager)
.FirstOrDefaultAsync(d => d.Id == id);
if (department == null)
{
return(null);
}
if (!string.IsNullOrWhiteSpace(parameters.Name))
{
department.Name = parameters.Name;
}
if (parameters.ManagerId.HasValue)
{
var manager = await _dbContext.Employees.FirstOrDefaultAsync(e => e.Id == parameters.ManagerId.Value);
if (manager != null)
{
department.Manager = manager;
department.ManagerId = department.ManagerId;
}
}
await _dbContext.SaveChangesAsync();
return(new DepartmentUpdateResult(DepartmentValidationStatus.Success)
{
Id = department.Id,
Name = department.Name,
ManagerName = department.Manager?.Name
});
}
private async Task <DepartmentValidationStatus> Validate(int id, DepartmentCreateParameters parameters)
{
var findName = await _dbContext.Departments.AnyAsync(d => (id == 0 || d.Id != id) && d.Name.ToLower().Equals(parameters.Name.ToLower()));
var findManager = await _dbContext.Departments.FirstOrDefaultAsync(d => d.ManagerId.Equals(parameters.ManagerId));
if (findName)
{
return(DepartmentValidationStatus.DepartmentNameAlreadyExists);
}
else if (findManager != null && findManager.ManagerId == parameters.ManagerId)
{
return(DepartmentValidationStatus.DepartmentManagerAlreadyExists);
}
else
{
return(DepartmentValidationStatus.Success);
}
}
public async Task <DepartmentUpdateResult> Put(int id, DepartmentCreateParameters parameters)
{
return(await _departmentService.Update(id, parameters));
}
public async Task <DepartmentCreateResult> Post(DepartmentCreateParameters parameters)
{
return(await _departmentService.Create(parameters));
}
