/// <summary>
/// Constructor to create "new" PaymentAdvices.
/// New paymentAdvices will be created "unlocked".
/// </summary>
/// <param name="parentPAList">Parent PaymentAdviceList: must assign to create PaymentAdvice</param>
/// <param name="StudId">Student Id: must assign a valid student id to create PaymentAdvice</param>
public PaymentAdvice(PaymentAdviceList parentPAList, int StudId)
{
if (parentPAList == null)
throw new ApasInvaidOperationException(
"Invalid Operation: Unable to create a PaymentAdvice without " +
"a valid parent PaymentAdviceList.");
_IsLocked=false;
IdStudent = StudId;
IsFrozen=0;
IsExcluded=0;
IdLockHolder=null;
LockKey = null;
ClassFees = new Dictionary<int, ClassFee>();
OtherFees = new Dictionary<long, OtherFee>();
LastAction = "Create";
LastModifiedTime = DateTime.Now;
LastModifiedBy = ApasAccessControlManager.GetCurrentInstance().LogonUser.Id;
parentPAList.AddPaymentAdvice(this);
}
public object Get(GetBankPaymentAdviceList request)
{
// Get the contract for the Bank by specifying the bank address
var contract = AppServices.web3.Eth.GetContract(AppModelConfig.BANK.abi, AppServices.GetEcosystemAdr(request.ContractAdr).BankContractAdr);
// Create a new return instance for Bank Metadata and set the Bank contract address
uint countPaymentAdvice = contract.GetFunction("countPaymentAdviceEntries").CallAsync <uint>().Result;
// Create the bond list object and initialise
PaymentAdviceList list = new PaymentAdviceList()
{
Items = new List <PaymentAdviceDetail>()
};
// Iterate through all the payment advice entries available according to count
for (uint i = 0; i < countPaymentAdvice; i++)
{
// Call the payment advice from the specified idx
PaymentAdviceDetail advice = contract.GetFunction("bankPaymentAdvice").CallDeserializingToObjectAsync <PaymentAdviceDetail>(i).Result;
// Verify the payment advice returned has not already been processed (check the payment amount)
if (advice.Amount > 0)
{
// Set the Advice index
advice.Idx = i;
// Convert the payment subject if applicable
if (advice.PaymentSubject.StartsWith("0x000000") == true)
{
advice.PaymentSubject = Convert.ToUInt64(advice.PaymentSubject.RemoveHexPrefix(), 16).ToString();
}
// Add advice to the list
list.Items.Add(advice);
}
}
// Return the list of all outstanding payment advice
return(list);
}
public virtual PaymentAdviceList GetParentPAList()
{
ISession db = NHibernateManager.GetCurrentSession();
PaymentAdviceList parent =
db.Get<PaymentAdviceList>(IdPaymentAdviceList);
if (parent == null)
{
parent = new PaymentAdviceList(IdPaymentAdviceList, false);
}
return parent;
}
private void setCurrentPAList(PaymentAdviceList newPAList)
{
if (CurrentPAList != null)
NHibernateManager.GetCurrentSession().Evict(CurrentPAList);
_CurrentPAList = newPAList;
}
/// <summary>
/// A method to be called at the start of APAS
/// </summary>
public void PreparePAList(DateTime month)
{
//forget about the Access Control for now
//bool canCreate = ApasAccessControlManager.GetCurrentInstance()
// .isAccessGranted("PaymentAdviceList", "Create");
//bool canEdit = ApasAccessControlManager.GetCurrentInstance()
// .isAccessGranted("PaymentAdviceList", "Edit");
//only one thread can perform this method at a time
lock (criticalSection)
{
//check if a PAlist exists for the requreded month
//Create new PAlist and generate if not exists,
//Sync if exists (must hold records first)
PaymentAdviceList newPA, prevPA;
IList<PaymentAdviceList> pList;
if ( SelectPAList(month) )
{
//has PAList already created
newPA = _CurrentPAList;
if (newPA.IsFrozen==0) //resync only if not frozen
{
ResyncPAList();
}
}
else
{
//dun have PAList
//create one
//Get previous month PAList. must have one. Else error
pList = PaymentAdviceList.FindByMonth
(month.AddMonths(-1));
if (pList.Count == 0)
{
throw new ApasInvaidOperationException(
"Invalid Operation: Missing payment advise list for " + month.AddMonths(-1).ToString("MMM yyyy") +
". In order to generate " + month.ToString("MMM yyyy") +
" payment advice list, you must have generated " + month.AddMonths(-1).ToString("MMM yyyy") +
" payment advice list.");
}
else
{
newPA = new PaymentAdviceList(month);
newPA.LastAction="Create";
newPA.LastModifiedBy =
ApasAccessControlManager.GetCurrentInstance().LogonUser.Id;
newPA.LastModifiedTime = DateTime.Now;
newPA.Save();
newPA.GeneratePaymentAdvices(pList[0]);
//release all locks
//select generated PAlist as current PAList
setCurrentPAList(newPA);
}
}
}
}
