TER doApply () override
{
Account const refereeID (mTxn.getFieldAccount160 (sfDestination));
Account const referenceID (mTxnAccountID);
if (!refereeID)
{
m_journal.warning <<
"Malformed transaction: Referee account not specified.";
return temDST_NEEDED;
}
else if (referenceID == refereeID)
{
// You're referring yourself.
m_journal.trace <<
"Malformed transaction: Redundant transaction:" <<
" reference=" << to_string(referenceID) <<
" referee=" << to_string(refereeID);
return temREDUNDANT;
}
//
// Open a ledger for editing.
SLE::pointer sleReferee(mEngine->entryCache(ltACCOUNT_ROOT, Ledger::getAccountRootIndex(refereeID)));
SLE::pointer sleReference(mEngine->entryCache(ltACCOUNT_ROOT, Ledger::getAccountRootIndex(referenceID)));
if (!sleReferee) {
// Referee account does not exist.
m_journal.trace <<
"Malformed transaction: Referee account does not exist.";
return tecNO_DST;
} else if (!sleReference) {
// Reference account does not exist.
m_journal.trace <<
"Malformed transaction: Reference account does not exist.";
return terNO_ACCOUNT;
} else if (sleReference->getFieldAccount(sfReferee).getAccountID().isNonZero())
{
// The tag is basically account-specific information we don't
// understand, but we can require someone to fill it in.
// We didn't make this test for a newly-formed account because there's
// no way for this field to be set.
m_journal.trace << "Malformed transaction: Referee has been set.";
return tefREFEREE_EXIST;
}
else
{
// Tell the engine that we are intending to change the the destination
// account. The source account gets always charged a fee so it's always
// marked as modified.
STArray references = sleReferee->getFieldArray(sfReferences);
for (auto it = references.begin(); it != references.end(); ++it) {
Account id = it->getFieldAccount(sfReference).getAccountID();
if (id == referenceID) {
m_journal.trace << "Malformed transaction: Reference has been set.";
return tefREFERENCE_EXIST;
}
}
mEngine->entryModify(sleReference);
mEngine->entryModify(sleReferee);
sleReference->setFieldAccount(sfReferee, refereeID);
STObject obj;
obj.setFieldAccount(sfReference, referenceID);
references.push_back(obj);
sleReferee->setFieldArray(sfReferences, references);
}
return tesSUCCESS;
}
