Created
July 19, 2021 16:12
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simple Database URI parser
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| import os | |
| import re | |
| from pony.orm import Database | |
| class DatabaseURI: | |
| """ | |
| DB url parser for PonyORM. | |
| Sample usage: | |
| from pony import orm | |
| db = orm.Database() | |
| DatabaseUrl(url_env_name='DATABASE_URL').bind_to_pony_db(db) | |
| """ | |
| def __init__(self, url: str = None) -> None: | |
| scheme, _, user, password, host, database = re.match(r'(.*?):/*((\w*):(\w*))?@?([\w.]*)/?(\w*)?', url).groups() | |
| self.provider = scheme | |
| self.user = user | |
| self.password = password | |
| self.host = host | |
| self.database = database | |
| self.filepath = os.path.join(os.getcwd(), self.host) | |
| def bind_to_pony_db(self, database: Database) -> None: | |
| if self.provider == "sqlite": | |
| database.bind( | |
| provider=self.provider, | |
| filename=self.filepath, | |
| create_db=True, | |
| ) | |
| else: | |
| database.bind( | |
| provider=self.provider, | |
| user=self.user, | |
| password=self.password, | |
| host=self.host, | |
| database=self.database, | |
| create_db=True, | |
| ) |
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