;, echo=True)
>
> m.create_all(e)
>
> and we see:
>
> CREATE TABLE t (
> x VARCHAR,
> CHECK (x ~ '^[A-Za-z0-9_-]+$')
> )
>
>
>
> So something else must be happening here, for which I'd need more detail
> as to how you
Hi,
I was trying to define a subclass of CheckConstraint to match a column
(whose name is given) to a regexp.
class CodenameConstraint(CheckConstraint):
"""Check that the column uses a limited alphabet."""
def __init__(self, column_name):
column = ColumnClause(column_name)
Done.
https://bitbucket.org/sqlalchemy/sqlalchemy/pull-request/36/fix-the-collectionlink-decorator
http://www.sqlalchemy.org/trac/ticket/2653
http://www.sqlalchemy.org/trac/ticket/2654
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Thanks for the reply.
I started diving into the code to debug the issues and, perhaps, write a
patch to fix them and I think I discovered their causes.
The problem with the "link" decorator is the following:
- the "@collection.link"[1] decorator sets the "_sa_instrument_role" of
the meth
Hello everyone,
I'm posting here because I don't know if the issues I'm having are bugs or
just improper use of the library.
I'd like to define a custom collection class since I'm not completely
satisfied by the default ones. In particular I'd like to subclass
MappedCollection and make it prov
