[sqlalchemy] How to refer to columns whose names begin with a number when autoloading?

2021-04-11 Thread Rob Rosenfeld
Hi All, I'm using SQLAlchemy to access a legacy MSSQL database. I'm using the autoload feature to load the schema from the database. In this example I'd like to read data out of the column named "1st_period" in the database. The following query shows the SQL I'd need. But trying to access a

Re: [sqlalchemy] Many-to-many using custom join columns and autoloaded tables

2020-07-22 Thread Rob Rosenfeld
udent.details) > > the different ways to join are laid out at > > > https://docs.sqlalchemy.org/en/13/orm/query.html?highlight=query%20join#sqlalchemy.orm.query.Query.join > > > > On Tue, Jul 21, 2020, at 9:40 PM, Rob Rosenfeld wrote: > > > Hi All, > > I'

[sqlalchemy] Many-to-many using custom join columns and autoloaded tables

2020-07-21 Thread Rob Rosenfeld
Hi All, I'm struggling to put several concepts together. I am working with a legacy SQL Server database (2008 R2 and 2019) that was not setup with much planning, let alone ORM in mind. I would like to set up a many to many relationship that joins through columns I specify and all the tables ar

Re: [sqlalchemy] Retaining plain old python instance member values betwen Flask-SQLAlchemy requests.

2020-02-22 Thread Rob Rosenfeld
User.__data_cache.get(self.id) if data is None: User.__data_cache[self.id] = 0 User.__data_cache[self.id] += 1 Rob On Wednesday, February 12, 2020 at 9:43:37 PM UTC-6, Rob Rosenfeld wrote: > > Thanks for the thoughts. I'm going to digest, read docs, and experiment. > > >

Re: [sqlalchemy] Retaining plain old python instance member values betwen Flask-SQLAlchemy requests.

2020-02-12 Thread Rob Rosenfeld
Thanks for the thoughts. I'm going to digest, read docs, and experiment. On Wed, Feb 12, 2020 at 8:52 AM Mike Bayer wrote: > > > On Tue, Feb 11, 2020, at 11:41 PM, Rob Rosenfeld wrote: > > Hi All, > > I am using Flask-SQLAlchemy on a legacy database. My SQLA cl

[sqlalchemy] Retaining plain old python instance member values betwen Flask-SQLAlchemy requests.

2020-02-11 Thread Rob Rosenfeld
Hi All, I am using Flask-SQLAlchemy on a legacy database. My SQLA classes / tables are setup using declarative base and autoload. In addition to using the class to access persisted data, I also use plain old Python to enrich them with ephemeral data. Every time I load a User object, I'd lik