42 lines
1000 B
Python
42 lines
1000 B
Python
# -*- coding: utf-8 -*-
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from traceback import format_exc
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class DBImpl:
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def __init__(self, engine, params):
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self.db_engine = engine
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self.connection = engine.connect(**params)
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def transaction_commit(self):
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self.connection.commit()
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def transaction_rollback(self):
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self.connection.rollback()
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def close(self):
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if self.connection:
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self.connection.close()
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def get_cursor(self):
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return self.connection.cursor()
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def execute(self, sql_query):
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try:
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cur = self.get_cursor()
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cur.execute(sql_query)
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self.transaction_commit()
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except:
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self.transaction_rollback()
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raise BaseException("Error execute sql query. Reason : {}".format(format_exc()))
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def get_rows(self, query_string):
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cur = self.connection.cursor()
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cur.execute(query_string)
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rows = cur.fetchall()
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if cur:
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cur.close()
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return rows
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