I am having problems getting a list of table classes
using automap_base when the table has a composite primary key.
Not sure if this is the intended behaviour.
When I try to get the list tables classes using automap_base,
I only get tables 'a' and 'b' below and not table 'ab'.
This is using sqlalchemy 1.2.15.
This example was tested with sqlite3 but I get the same issue with Postgres
Here is the schema:
CREATE TABLE a (
id INTEGER,
PRIMARY KEY(id)
);
CREATE TABLE b (
id INTEGER,
PRIMARY KEY(id)
);
CREATE TABLE ab (
a_id INTEGER NOT NULL,
b_id INTEGER NOT NULL,
FOREIGN KEY(a_id) REFERENCES a(id),
FOREIGN KEY(b_id) REFERENCES b(id),
PRIMARY KEY (a_id, b_id)
);
Base = automap_base()
engine = create_engine("sqlite:///mydb.db")
Base.prepare(engine, reflect=True)
print ('classes {}'.format(Base.classes.keys()))
--
SQLAlchemy -
The Python SQL Toolkit and Object Relational Mapper
http://www.sqlalchemy.org/
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