// get user prompts for table fields and add a new row
// to a table, with an auto-incremented id.
void CreateInTable(TableDefinition Def, char* Table, char* key){
string name, val;
DB.UseTableDefinition(Def);
//cout << "key: " << key;
TableRow Columns = DB.GetColumnsForTable(Table); // get all the columns
TableDataSet NewDataSet;
for(unsigned int i=0; i<Columns.size(); i++){
if(Columns[i] == key){
int maxID = DB.GetMaxField(Table, key);
int newID = maxID+1;
stringstream ID("");
ID << newID;
NewDataSet.push_back(make_pair(key, (char*)ID.str().c_str()));
}
else{
cout << Columns[i] << ": ";
getline(cin, val);
FieldDefinition WorkingFieldDefinition = DB.GetFieldDefinition((char*)Columns[i].c_str());
if((WorkingFieldDefinition.getLength() > 0) && (WorkingFieldDefinition.Validate((char*)val.c_str()))){
NewDataSet.push_back(make_pair(Columns[i],val));
}
else{
cout << "validation failed for the field " << WorkingFieldDefinition.getName();
return;
}
}
}
DB.Create(Table, NewDataSet);
DB.ShowTable(Table, NewDataSet);
return;
}
// add a transaction to the table.
void TransactAmount(bool isCredit){
if(isCredit){
cout << "Deposit" << endl;
}
else{
cout << "Withdraw" << endl;
}
stringstream AAID(""); // active account id
stringstream AUID(""); // active user id
stringstream TNUM(""); // transaction number
stringstream TAMT(""); // transaction amount
stringstream DATE(""); // timestamp
stringstream NBAL(""); // updated balance
// create a new transaction id
int TransNum = DB.GetMaxField(TRANSACTION_TABLE, "TransNum");
int newTransNum = TransNum+1;
// get the transaction amount
double transAmt = GetUserInput("Enter Transaction Amount", INT_MAX);
stringstream sM("");
sM << transAmt;
// validation. Minimal validation. Better than nothing.
if(!validate::string::money(sM.str())){
cout << "that does not appear to be a valid monetary amount.";
return;
}
AAID << ActiveAccountID;
AUID << ActiveUserID;
if(!validate::string::numeric(AAID.str())){
ActiveAccountID = -1;
cout << "The account id is invalid. " << endl;
return;
}
if(!validate::string::numeric(AUID.str())){
ActiveUserID = -1;
cout << "the user id is invalid. " << endl;
return;
}
stringstream clause("");
// this is terrible, but it works.
clause << " UserID = '" << ActiveUserID << "' and AcctID = '" << ActiveAccountID << "' ";
double exSum = DB.GetSumField(TRANSACTION_TABLE, "TransAmount", (char*)clause.str().c_str());
TNUM << newTransNum;
DATE << time(0);
if(isCredit){
TAMT << transAmt;
NBAL << (exSum+transAmt);
}
else{
TAMT << "-" << transAmt;
NBAL << (exSum-transAmt);
}
TableDataSet NewDataSet;
NewDataSet.push_back(make_pair("AcctID", AAID.str().c_str()));
NewDataSet.push_back(make_pair("UserID", AUID.str().c_str()));
NewDataSet.push_back(make_pair("TransNum", TNUM.str().c_str()));
NewDataSet.push_back(make_pair("TransAmount", TAMT.str().c_str()));
NewDataSet.push_back(make_pair("TransDate", DATE.str().c_str()));
NewDataSet.push_back(make_pair("Balance", NBAL.str().c_str()));
DB.Create(TRANSACTION_TABLE, NewDataSet);
DB.ShowTable(TRANSACTION_TABLE, NewDataSet, 2);
}