date1,date2 = period['name'].split(' to ')
query = "SELECT SUM(credit-debit) FROM account_move_line AS line, account_account as ac \
WHERE (line.account_id=ac.id) AND ac.type='receivable' \
- AND (COALESCE(line.date,date) BETWEEN '%s' AND '%s') \
- AND (reconcile_id IS NULL) AND ac.active"%(str(date2),str(date1))
- cr.execute(query)
+ AND (COALESCE(line.date,date) BETWEEN %s AND %s) \
+ AND (reconcile_id IS NULL) AND ac.active"
+ cr.execute(query, (date2, date1))
amount = cr.fetchone()
amount = amount[0] or 0.00
res[period['id']] = amount