This is for those who had problems understanding a generic default account marking business process. I had a problem understanding the same, so I came up with a visual that helped a lot.
Business rules:
Rule 1:
At any time only 1 account can be marked as "O"
Rule 2:
If there is a "O" type account in one category then no "Y" type account is required in that category
Rule 3:
If there is a "Y" type account in one category then all other accounts should be of "N" type.
Following is the simple code for the above flow.
private void ApplyRulesEx(DataTable dtAtmCards)
{
//Pseudo:
//STEP 1: Demark old account status to N
//STEP 2: Mark the new account status to O or Y
//
bool bStatus = false;
try
{
string strRequestCategory = m_strCategory;//"10";//
string strRequestAccountNumber = m_strAccountNumber;//"0949011001576";//
string strRequestMarkAs = m_strFlagToBeMarked; //"Overall Default";// //mark as O, overall default
for (int nRowNumber = 0; nRowNumber < dtAtmCards.Rows.Count; nRowNumber++)
{
//1. Parse through each db record, get the status and category
//2. if dbCategory = requestCategory) then mark all O and Y's as N
//3. Else, its a different category, so mark all O as Y.
// make it default for that type only
//4. Send
string dbAccountStatus = dtAtmCards.Rows[nRowNumber]["Default_Account"].ToString();
if (dbAccountStatus.Equals("")) dbAccountStatus = "Non Default";
string dbAccountNumber = dtAtmCards.Rows[nRowNumber]["Account_No"].ToString();
string dbAccountCategory = dtAtmCards.Rows[nRowNumber]["Account_Type"].ToString();
if (dbAccountCategory == strRequestCategory)
{
if (dbAccountNumber == strRequestAccountNumber)
{
//the request account status change is same as the current overall default account.
//Lets change that directly. Only one call to phoenix.
//this means, that the requested account number and category is same as
//the db account number and category, so, no need to send any "N" statuses,
//lets do nothing. and break;
CLogger.getInstance().Log("Try marking account: [" + dbAccountNumber + ":" + dbAccountCategory + "] as: [" + strRequestMarkAs + "]", System.Diagnostics.TraceLevel.Info);
bStatus = MarkAs(strRequestMarkAs, dbAccountCategory, dbAccountNumber);
}
else
{
//2. if dbCategory = requestCategory) then mark all O and Y's as N
//means, the requested category is same as the this account's category,
//so this means if the current db status is overall or yes,
//we need to make it N
if (dbAccountStatus == AccountStatuses.Overall || dbAccountStatus == AccountStatuses.Yes)
{
//Make it "N", which means No.
CLogger.getInstance().Log("Try marking account: [" + dbAccountNumber + ":" + dbAccountCategory + "] as: [" + AccountStatuses.No.ToString().Substring(0, 1).ToString() + "]", System.Diagnostics.TraceLevel.Info);
bStatus = MarkAs(AccountStatuses.No.ToString().Substring(0, 1), dbAccountCategory, dbAccountNumber);
}
}
}
else
{
//3. else, its a different category, so mark all O as Y.
// make it default for that type only
if (dbAccountStatus == AccountStatuses.Overall)
{
//Change any overall status from Overall to Yes, send Y. Static/hardcoded.
//TODO: Put Y in app.config for ready change.
CLogger.getInstance().Log("Try marking account: [" + dbAccountNumber + ":" + dbAccountCategory + "] as: [" + "Y" + "]", System.Diagnostics.TraceLevel.Info);
bStatus = MarkAs("Y", dbAccountCategory, dbAccountNumber);
}
}
}
}
catch (Exception exc)
{
CLogger.getInstance().Error("CAccountHandler", "ApplyRules", exc.Message);
}
}
Hope this helps.