public async Task <long> NextAsync(string name)
{
if (await idHolderRepository.ExistsAsync(name))
{
var entity = await idHolderRepository.GetAsync(name);
var idHolderName = IdHolderName.Create(entity.Name);
var idHolderCurrentId = IdHolderCurrentId.Create(entity.CurrentId);
var idHolder = new IdHolder(idHolderName.Value, idHolderCurrentId.Value);
entity.CurrentId = idHolder.Next();
await idHolderRepository.UpdateAsync(entity);
return(idHolder.CurrentId.Value);
}
else
{
var idHolderName = IdHolderName.Create(name);
var idHolderCurrentId = IdHolderCurrentId.Create(StartFromDefault);
var result = Result.Combine(idHolderName, idHolderCurrentId);
if (result.IsSuccess)
{
var idHolder = new IdHolder(idHolderName.Value, idHolderCurrentId.Value);
await CreateIdHolderTableEntityAsync(idHolder);
return(StartFromDefault);
}
else
{
throw new Exception(result.Error);
}
}
}
private async Task CreateIdHolderTableEntityAsync(IdHolder idHolder)
{
var entity = new IdHolderTableEntity
{
Name = idHolder.Name,
CurrentId = idHolder.CurrentId
};
await idHolderRepository.CreateAsync(entity);
}
public async Task <ActionResult <Lamp> > Post([FromBody] LampCreationApi lamp)
{
var newItem = mapper.Map <Lamp>(lamp);
IdHolder <int> idHolder = await db.Lamps.AddAsync(newItem);
await db.SaveAsync();
newItem.SetId(idHolder.Id);
return(CreatedAtAction(nameof(Get), new { id = newItem.Id }, newItem));
}
public void Next_ReturnsIncrementedValue()
{
var idHolderName = IdHolderName.Create("name");
var idHolderCurrentId = IdHolderCurrentId.Create(1);
var idHolder = new IdHolder(idHolderName.Value, idHolderCurrentId.Value);
var next = idHolder.Next();
next.Should().Be(2);
idHolderCurrentId.Value.Value.Should().Be(2);
}
public async Task CreateAsync(CreateIdHolderDto createIdHolderDto)
{
var exists = await ExistsAsync(createIdHolderDto.Name);
if (exists)
{
throw new ArgumentException($"IdHolder Name { createIdHolderDto.Name } is in use");
}
var idHolderName = IdHolderName.Create(createIdHolderDto.Name);
var idHolderCurrentId = IdHolderCurrentId.Create(createIdHolderDto.StartFrom);
var result = Result.Combine(idHolderName, idHolderCurrentId);
if (result.IsSuccess)
{
var idHolder = new IdHolder(idHolderName.Value, idHolderCurrentId.Value);
await CreateIdHolderTableEntityAsync(idHolder);
}
else
{
throw new Exception(result.Error);
}
}
