Password = db.Column(db.String, nullable=False)Ĭreated_on = db.Column(db.DateTime, nullable=False) Id = db.Column(db.Integer, primary_key=True)Įmail = db.Column(db.String, unique=True, nullable=False) Return dialect.type_descriptor(types.VARCHAR(100))ĭef process_bind_param(self, value, dialect):ĭef process_result_value(self, value, dialect): from datetime import datetimeĬlass SqliteNumeric(types.TypeDecorator): However I thought I am handling it fine? I am open to recommendations with what I should do if it's not enough. Please consider storing Decimal numbers as strings or integers on this platform for lossless storage. I am receiving this warning: SAWarning: Dialect sqlite+pysqlite does *not* support Decimal objects natively, and SQLAlchemy must convert from floating point - rounding errors and other issues may occur. nfig = 'sqlite:///site.Hello so I am having troubles with storing decimals for prices and balance in my db. Using your example, I believe it will work if you move the call from where you have it to the end of your _init_.py: In your example I did not see a call to db.create_all() but I suspect that it is in the wrong spot. Resp.headers = flask.url_for("student_by_id", _id=student.id) Here is a working example in one module: import flaskĪpp.config = '3bce79429ad6b79670e4e800fb4a57b9'Īpp.config = 'sqlite:///site.db' You have to call it after you have defined all of your models. It probably has to do with where you are calling db.create_all(). Last_name = db.Column(db.String(60), nullable=False)Ĭollege = db.Column(db.String(60), nullable=False)Įmail = db.Column(db.String(120), unique=True, nullable=False) Id = db.Column(db.Integer, primary_key=True) [SQL: SELECT students.id AS students_id, students.last_name AS students_last_name, llege AS students_college, students.email AS students_email : (sqlite3.OperationalError) no such table: students Reraise(type(exception), exception, tb=exc_tb, cause=cause)įile "C:\Users\Martin\Desktop\regtry\venv\lib\site-packages\sqlalchemy\util\compat.py", line 152, in reraise Util.raise_from_cause(sqlalchemy_exception, exc_info)įile "C:\Users\Martin\Desktop\regtry\venv\lib\site-packages\sqlalchemy\util\compat.py", line 398, in raise_from_cause Return connection._execute_clauseelement(self, multiparams, params)įile "C:\Users\Martin\Desktop\regtry\venv\lib\site-packages\sqlalchemy\engine\base.py", line 1101, in _execute_clauseelementįile "C:\Users\Martin\Desktop\regtry\venv\lib\site-packages\sqlalchemy\engine\base.py", line 1250, in _execute_contextĮ, statement, parameters, cursor, contextįile "C:\Users\Martin\Desktop\regtry\venv\lib\site-packages\sqlalchemy\engine\base.py", line 1476, in _handle_dbapi_exception Result = conn.execute(querycontext.statement, self._params)įile "C:\Users\Martin\Desktop\regtry\venv\lib\site-packages\sqlalchemy\engine\base.py", line 982, in executeįile "C:\Users\Martin\Desktop\regtry\venv\lib\site-packages\sqlalchemy\sql\elements.py", line 287, in _execute_on_connection Return self._execute_and_instances(context)įile "C:\Users\Martin\Desktop\regtry\venv\lib\site-packages\sqlalchemy\orm\query.py", line 3392, in _execute_and_instances The above exception was the direct cause of the following exception:įile "C:\Users\Martin\Desktop\regtry\venv\lib\site-packages\sqlalchemy\orm\query.py", line 3211, in allįile "C:\Users\Martin\Desktop\regtry\venv\lib\site-packages\sqlalchemy\orm\query.py", line 3367, in _iter_ Sqlite3.OperationalError: no such table: students Traceback (most recent call last):įile "C:\Users\Martin\Desktop\regtry\venv\lib\site-packages\sqlalchemy\engine\base.py", line 1246, in _execute_contextįile "C:\Users\Martin\Desktop\regtry\venv\lib\site-packages\sqlalchemy\engine\default.py", line 581, in do_execute I compared my codes with my existing projects and it is the same. I've also executed the db.create_all() in the python shell after importing db. The db file is in the same directory as the init and models. I've tried this before and it worked, now I'm doing it again but it doesn't.
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