private ErrorManager Validate(DeveloperUpdateCommand command)
{
return(new ErrorManager()
.NoDuplicate(command.Experiences,
x => new { x.Position, x.Company },
exp => $"The experience of '{exp.Position}' at '{exp.Company}' is duplicated")
.Conditional(
cond => cond.CheckPeriods(command.Experiences,
x => x.StartDate,
x => x.EndDate,
exp => $"StartDate of '{exp.Company}' is greater than it's EndDate"),
then => then.NoOverlaps(command.Experiences,
x => x.StartDate,
x => x.EndDate,
(exp, others) => $"The experiences of '{exp.Company}' overlaps with '{string.Join(", ", others.Select(x => x.Company))}'"))
.NoDuplicate(command.SideProjects,
x => x.Title,
proj => $"The side project of '{proj.Title}' is duplicated")
.NoDuplicate(command.Educations,
x => new { x.Degree, x.University },
edu => $"The education of '{edu.Degree}' in '{edu.University}' is duplicated")
.Conditional(
cond => cond.CheckPeriods(command.Educations,
x => x.StartDate,
x => x.EndDate,
edu => ""),
then => then.NoOverlaps(command.Educations,
x => x.StartDate,
x => x.EndDate,
(edu, others) => $"The education of '{edu.University}' overlaps with '{string.Join(", ", others.Select(x => x.University))}'")));
}
private void UpdateAggregates(DeveloperUpdateCommand command)
{
_summary = command.Summary;
Skills = command.Skills;
Update(_experiences, command.Experiences, AddExperience);
Update(_sideProjects, command.SideProjects, AddSideProject);
Update(_educations, command.Educations, AddEducation);
}
public static DeveloperFactoryResult Create(DeveloperUpdateCommand command)
{
var dev = new Developer();
var errorManager = new ErrorManager()
.Add(dev.Update(command).Errors)
.NotEmpty(command.Experiences, "Experiences");
if (errorManager.Dirty)
{
return(DeveloperFactoryResult.MakeFailure(errorManager));
}
return(DeveloperFactoryResult.MakeSuccess(dev));
}
public CommandResult Update(DeveloperUpdateCommand command)
{
if (command == null)
{
throw new ArgumentNullException("command");
}
var errorManager = Validate(command);
if (errorManager.Dirty)
{
return(new CommandResult(errorManager.Errors));
}
UpdateAggregates(command);
return(new CommandResult(Enumerable.Empty <string>()));
}
