-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Michael Bayer ha scritto: > [...] > Unfortunately, fold_equivalents is not a generic solution for me > I have a generative query, where I later add the select_from object. > > The query is generative, since the tables involved are not know in > advance. > I have several plugins, that take a query instance as input, and return > the (modified) query, and the additional tables involved. > These tables are later joined together. > >> I don't understand what you want then. the flag is applied at the point >> of select() where the list of columns that will be in its columns clause >> is passed, and then its fixed...unless you're adding columns after the >> fact (an unusual pattern).
Here is the code I have: http://paste.pocoo.org/show/178959/ What each plugin do is: - - add additional columns in the select list - - add additional where clauses or order_by clauses Basically I have a simple table inheritance scheme, where each additional table "derive" from the `contents` table, > Feel free to look at its implementation and >> suggest what it is you're looking for. > I think I need to refactor that code. Each plugin *must not* add columns; instead the columnn to add should be computed using the util.folded_equivalents if tables are joined. So I think that I simply need the util.folded_equivalents function, thanks. Manlio -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkt6+ukACgkQscQJ24LbaURAtACcC2jVBx4GEc04Yb8Yckbvpve6 eh4An16RWuv9gwfpfj7Vc4rreXBcSogU =UsZP -----END PGP SIGNATURE----- -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalch...@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
