public Operation <Harvest> UpdateHarvest(Harvest harvest)
=> Operation.Try(async() =>
{
//verify the
await harvest
.ThrowIfNull(new GaiaException(PolluxErrorCodes.InvalidArgument))
.Validate();
var persisted = (await _queries
.GetHarvest(harvest.Id))
.ThrowIfNull(new GaiaException(ErrorCodes.InvalidStoreQueryResult));
var farm = (await _queries
.GetFarm(persisted.Batch.Farm.Id))
.ThrowIfNull(new GaiaException(ErrorCodes.InvalidStoreQueryResult));
//data access authorization
await _dataAuth.AuthorizeCustomAccess(new FarmerDataAccess
{
Farmer = farm.Owner,
Farm = farm
});
//cannot update harvest of a published batch
if (persisted.Batch.Status == HarvestBatchStatus.Published)
{
throw new GaiaException(ErrorCodes.DomainLogicError);
}
//make sure the new harvest product exists
var produce = (await _queries
.GetFarmProduce(harvest.Produce.Id))
.ThrowIfNull(new GaiaException(ErrorCodes.DomainLogicError));
//copy values
persisted.Produce = produce;
persisted.Unit = harvest.Unit;
persisted.UnitAmount = harvest.UnitAmount;
var storeCommand = _storeProvider.CommandFor(typeof(HarvestBatch).FullName);
return((await storeCommand
.Update(persisted))
.ThrowIfNull(new GaiaException(ErrorCodes.InvalidStoreCommandResult)));
});
public Operation <Harvest> CreateHarvest(Guid batchId, Harvest harvest)
=> Operation.Try(async() =>
{
//verify the parameters
batchId.ThrowIf(
default(Guid),
new GaiaException(PolluxErrorCodes.InvalidArgument));
await harvest
.ThrowIfNull(new GaiaException(PolluxErrorCodes.InvalidArgument))
.Validate();
var batch = (await _queries
.GetBatch(batchId))
.ThrowIfNull(new GaiaException(ErrorCodes.InvalidStoreQueryResult));
var farmer = (await _queries
.GetFarmer(batch.Farm.Owner.Id))
.ThrowIfNull(new GaiaException(ErrorCodes.InvalidStoreQueryResult));
//data access authorization: make sure the current user is the farmer that owns the farm to which the batch is being added
await _dataAuth.AuthorizeCustomAccess(new FarmerDataAccess
{
Farmer = farmer,
Farm = batch.Farm
});
//cannot add a harvest to an already published batch
if (batch.Status == HarvestBatchStatus.Published)
{
throw new GaiaException(ErrorCodes.DomainLogicError);
}
//harvest.Id = Guid.NewGuid(); //<-- this is redundant because the StoreTransformer always adds new Guids for objects being added to the store.
harvest.Batch = batch;
var storeCommand = _storeProvider.CommandFor(typeof(Harvest).FullName);
return((await storeCommand
.Add(harvest))
.ThrowIfNull(new GaiaException(ErrorCodes.InvalidStoreCommandResult)));
});
