mirror of
https://gitee.com/fasiondog/hikyuu.git
synced 2024-12-08 06:48:39 +08:00
61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
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# -*- coding: utf8 -*-
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#
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# The MIT License (MIT)
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#
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# Copyright (c) 2010-2019 fasiondog/hikyuu
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#
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import os
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import sys
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import sqlite3
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from hikyuu.util import *
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def dbcommit(func):
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def wrapfunc(*args, **kwargs):
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result = None
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x = args[0]
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try:
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hku_check(x.cursor is None, "You cannot nest using database cursors!")
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x.cursor = x._get_cursor()
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result = func(*args, **kwargs)
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x._cnx.commit()
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except Exception as e:
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hku_error("{} [{}.{}]".format(e, func.__module__, func.__name__))
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result = None
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if x.cursor is not None:
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x.cursor.close()
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x.cursor = None
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return result
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return wrapfunc
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class SqliteMemDriver:
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def __init__(self):
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self._cnx = sqlite3.connect("file:hikyuu_mem?mode=memory&cache=shared")
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self.cursor = None
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def _get_cursor(self):
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return self._cnx.cursor()
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@dbcommit
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def create_table(self):
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filename = os.path.dirname(__file__) + '/sqlite_mem/createdb.sql'
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with open(filename, 'r', encoding='utf8') as f:
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self.cursor.executescript(f.read())
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@dbcommit
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def insert_bars(self, market, code, bars, ktype):
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kline = [
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(
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code, bar['datetime'], bar['open'], bar['high'], bar['low'], bar['close'],
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bar['amount'], bar['volumn']
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) for bar in bars
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]
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sql = 'INSERT OR REPLACE INTO {}_{}(code, datetime, open, high, low, close, amount, \
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volumn) VALUES (?,?,?,?,?,?,?,?)'.format(market, ktype)
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self.cursor.executemany(sql, kline)
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