On Mon, 17 Jul 2006 11:59:40 -0700, Randall Smith <[EMAIL PROTECTED]> wrote:
> The following was done with SVN trunk 1712.
>
> I have a table defined as such:
>
> schemaname='web'
> metadata = DynamicMetaData(name="web_metadata")
>
> visit_identities = Table("visit_identities", metadata,
> Column("id", INTEGER, primary_key=True),
> Column("visit_key", String(40), nullable=False, unique=True),
> Column("user_id", INTEGER, ForeignKey(users.c.id), index=True),
> schema=schemaname
> )
>
> users is a table defined in the same way. Notice the schema =
> schemaname part. When I map an engine to metadata and issue the command:
>
> visit_identities.create()
>
> I get the following error:
>
> sqlalchemy.exceptions.SQLError: (ProgrammingError) relation "users" does
> not exist
> '\nCREATE TABLE web.visit_identities (\n\tid SERIAL NOT NULL,
> \n\tvisit_key VARCHAR(40) NOT NULL, \n\tuser_id INTEGER, \n\tPRIMARY KEY
> (id), \n\t FOREIGN KEY(user_id) REFERENCES users (id)\n)\n\n' {}
>
> The create method is not taking into account the schema of users. I
> believe that previous versions of SA did take into account the schema
> when a ForeignKey was defined with a direct reference.
>
individual table creation (ddl) doesn't take into account dependencies, it
expects dependent tables to already be in place.
as an alternative you can use.
metadata.create_all()
which will create tables bound to the metadata iff they don't exist, which
does take into account table fk dependencies.
cheers,
kapil
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