【Python】辞書（ディクショナリ）オブジェクトからインサート文（ON DUPLICATE KEY UPDATE文対応）を生成するクラスを作りました。
ソースコードは以下のとおりです。
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| # coding: utf-8 | |
| import MySQLdb | |
| class MySQL(): | |
| def __init__(self, config): | |
| connection = MySQLdb.connect(db=config['db'], user=config['user'], passwd=config['passwd'], charset=config['charset'], init_command=config['init_command']) | |
| self.cursor = connection.cursor() | |
| def insertFromDict(self, table, dict, duplicate_keys=[]): | |
| sql = self.buildQueryInsertFromDict(table, dict, duplicate_keys) | |
| self.cursor.execute(sql, dict) | |
| def dictValuePad(self, key): | |
| return "%(" + str(key) + ")s" | |
| def keyValuePad(self, key): | |
| return key + "=%(" + str(key) + ")s" | |
| def buildQueryInsertFromDict(self, table, dict, duplicate_keys): | |
| sql = "INSERT INTO " + table + " (" + ",".join(dict) + ") VALUES (" + ",".join(map(self.dictValuePad, dict)) + ")" | |
| if len(duplicate_key) > 0: | |
| sql += " ON DUPLICATE KEY UPDATE " + ",".join(map(self.keyValuePad, duplicate_keys)) | |
| sql += ";" | |
| return sql | |
| if __name__ == "__main__": | |
| mysql = MySQL({ | |
| "db": "database", | |
| "user": "username", | |
| "passwd": "password", | |
| "charset": "utf8", | |
| "init_command": "set names utf8" | |
| }) | |
| dict = { | |
| "a": "a", | |
| "b": "b" | |
| } | |
| mysql.insertFromDict("table", dict) |
by Pythonをはじめて一週間ほどなのでまだまだ無知なのですが、こういったモジュールはすでに存在するのでしょうか？