On Mon, Jan 7, 2019 at 4:39 PM Rich Shepard <[email protected]> wrote: > > An application I'm developing (postgres back end) has a SQL DOMAIN as a > check constraint on state/province codes. This is different from the SA > ORM's domain perspective. The SQL statement is: > > CREATE DOMAIN the_state_code AS char(2) > DEFAULT '??' > CONSTRAINT valid_state_code > CHECK (value IN ('AL', 'AK', 'AZ', ...)); > > and in postgres tables is this attribute: > > state_code char(2), > > which is in the equivalent model classes; e.g., > > org_state = Column(String) > > My question is how I add the CREATE DOMAIN DDL in models.py. I am not seeing > the answer in the SA docs.
there's no built-in construct for CREATE DOMAIN but we do support reflection of custom domains, to do CREATE DOMAIN you can just use a DDL() construct: https://docs.sqlalchemy.org/en/latest/core/ddl.html?highlight=ddl, the DOMAIN you have there looks like of like an ENUM though, we have built in support for that would that be better? > > TIA, > > Rich > > -- > SQLAlchemy - > The Python SQL Toolkit and Object Relational Mapper > > http://www.sqlalchemy.org/ > > To post example code, please provide an MCVE: Minimal, Complete, and > Verifiable Example. See http://stackoverflow.com/help/mcve for a full > description. > --- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/d/optout. -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
