def choose_trans(self, user):
chain_func = cf()
trans_table = chain_func.get_unused_trans(user)
if len(trans_table) == 0:
return -1, -1
else:
while 1:
print('请选择txn号：')
print('若想退出，请输入“qw:”')
txn_option = input()
if txn_option == 'qw:':
return -2, -2
elif int(txn_option) > len(trans_table) or int(
txn_option) <= 0:
print('请选择正确的txn号！')
continue
else:
amount = chain_func.get_txn_amount(
user, trans_table[int(txn_option) - 1][7])
break
return amount, trans_table[int(txn_option) - 1][7]
def person_read_trans(self, user):
chain_func = cf()
chain_func.read_ledger(user)
return
def company_read_trans(self, user):
chain_func = cf()
chain_func.read_ledger(user)
return
def person_create_trans(self, trans):
chain_func = cf()
chain_func.write_ledger(trans)
chain_func.sync_ledger(trans)
return
def company_create_trans(self, trans):
chain_func = cf()
chain_func.write_ledger(trans)
chain_func.sync_ledger(trans)
return