Added SQLServer_Persister #30
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Kulv3r
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Kulv3r
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Nice persister!
Please fix these minor problems I mentioned and we can merge it.
| primary_key=self._primary_key) | ||
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| @staticmethod | ||
| def __check_dependencies(): |
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Please look how it's implemented in the other persisters and adjust your code accordingly:
https://github.com/i2mint/py2store/blob/master/py2store/persisters/sql_w_sqlalchemy.py#L3
| import pyodbc | ||
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| if 'ubuntu' in platform.platform().lower(): | ||
| result = subprocess.Popen(["dpkg", "-s", "msodbcsql17"], stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
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This code will be executed every time you init a new SQLServerPersister instance.
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This is the intended behaviour, As py2store will be used for every storage type, but whenever user wants to use to for the SQLServer and creates an instance of the SQLServerPersister, we should check for dependencies of the SQLServer.
| self._cursor.execute(self._select_query.format(value=k)) | ||
| record = self._cursor.fetchone() | ||
| return record if record else print(f"No record found for primary_key: {k}") | ||
| # TODO: Raise a proper exception here |
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Please raise KeyError here and below.
| .format(conn_protocol, host, port, db_name, db_username, db_pass)) | ||
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| self._cursor = self._sql_server_client.cursor() | ||
| self._table_name = table_name |
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We need to make sure this table will be created, if it's not present, so user dont have to worry about it.
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| class SQLServerPersister(MutableMapping): | ||
| def __init__(self, conn_protocol='tcp', host='localhost', port='1433', db_username='SA', db_pass='Admin123x', | ||
| db_name='py2store', table_name='person', primary_key='id', data_fields=('name',)): |
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primary_key might be a tuple of multiple key fields. Persister should be flexible enough to work with such cases.
Also, please rename it to key_fields.
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Thanks for your kind review @Kulv3r, I've incorporated the changes you suggested. Please take a look. |
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Baseline SQLServer_Persister Added.
Added useful error messages while resolution of dependencies in order to run it.