Python Datasource.is_exists_rate示例

import json

rates_file = open(file_name, 'r+')
rates = json.load(rates_file)
rates_file.close()

[fin_info] = ds.get_finances({'disabled =': 0, 'fin_id =': fin_id})

if fin_info['curr_code'] not in rates:
    print(
        "Ошибка curr_code. Неправильный формат файла \"{}\"".format(file_name))
    quit()

if 'rates' not in rates[fin_info['curr_code']]:
    print("Ошибка rates. Неправильный формат файла \"{}\"".format(file_name))
    quit()

from interfaces import Sbrf

sbr = Sbrf(ds)

print("Процесс пошёл")
prev_event_ts = 0
for rate_row in rates[fin_info['curr_code']]['rates']:
    row = {'fin_id': fin_id}
    row.update(sbr._get_rate_row(rate_row))
    if not ds.is_exists_rate(row) and row['event_ts'] != prev_event_ts:
        ds.insert_rates(row)
    prev_event_ts = row['event_ts']
print("Процесс окончен")