Re: [sqlalchemy] Re: can I use SA to dump a table's DDL to a file?
If anyone is interested, I have some code that writes basic details for tables, constraints, indexes, and triggers out to files. Code is here: https://bitbucket.org/rsyring/mssqlddlwriter/ -- Randy Syring Intelicom Direct: 502-276-0459 Office: 502-212-9913 For the wages of sin is death, but the free gift of God is eternal life in Christ Jesus our Lord (Rom 6:23) On 06/02/2011 11:03 AM, Michael Bayer wrote: On Jun 2, 2011, at 3:14 AM, Randy Syring wrote: Looks like I beat you to the answer by about 3 mins, thanks for answering though. :) I have a follow-up though. The foreign key constraints are not getting created with "ON DELETE CASCADE" as expected. I tried this in both MSSQL and Postgres. Is this expected behavior? yeah I don't think this aspect of the FK is reflected right now.Plenty of room for that as a new feature of course If so, is it possible to modify the FKs after they are reflected to set ondelete and onupdate as appropriate? My test code: http://paste.pocoo.org/show/399307/ And my output: CREATE TABLE blog_comments ( id INTEGER NOT NULL, blog_id INTEGER, CONSTRAINT blog_comments_pkey PRIMARY KEY (id), CONSTRAINT blog_comments_blog_id_fkey FOREIGN KEY(blog_id) REFERENCES blog (id) ) It would seem to be a reflection issue though, b/c if I create a table manually, the "ON DELETE CASCADE" is added correctly. I think if you went through the Table object's .constraints collection and looked for ForeignKeyConstraint objects you could set up the "onupdate" and "ondelete" attributes on them, sure. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@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.
Re: [sqlalchemy] Re: can I use SA to dump a table's DDL to a file?
That was it, thanks. I was trying to go through the column and looking at it's foreign_keys collection. When I set those values, it didn't affect the output. Reflects my ignorance of SA, obviously. Thanks again. -- Randy Syring Intelicom Direct: 502-276-0459 Office: 502-212-9913 For the wages of sin is death, but the free gift of God is eternal life in Christ Jesus our Lord (Rom 6:23) On 06/02/2011 11:03 AM, Michael Bayer wrote: I think if you went through the Table object's .constraints collection and looked for ForeignKeyConstraint objects you could set up the "onupdate" and "ondelete" attributes on them, sure. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@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.
Re: [sqlalchemy] Re: can I use SA to dump a table's DDL to a file?
On Jun 2, 2011, at 3:14 AM, Randy Syring wrote: > Looks like I beat you to the answer by about 3 mins, thanks for > answering though. :) > > I have a follow-up though. The foreign key constraints are not > getting created with "ON DELETE CASCADE" as expected. I tried this in > both MSSQL and Postgres. Is this expected behavior? yeah I don't think this aspect of the FK is reflected right now.Plenty of room for that as a new feature of course > > If so, is it possible to modify the FKs after they are reflected to > set ondelete and onupdate as appropriate? My test code: > > http://paste.pocoo.org/show/399307/ > > And my output: > > CREATE TABLE blog_comments ( > id INTEGER NOT NULL, > blog_id INTEGER, > CONSTRAINT blog_comments_pkey PRIMARY KEY (id), > CONSTRAINT blog_comments_blog_id_fkey FOREIGN KEY(blog_id) REFERENCES > blog (id) > ) > > It would seem to be a reflection issue though, b/c if I create a table > manually, the "ON DELETE CASCADE" is added correctly. I think if you went through the Table object's .constraints collection and looked for ForeignKeyConstraint objects you could set up the "onupdate" and "ondelete" attributes on them, sure. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@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.
[sqlalchemy] Re: can I use SA to dump a table's DDL to a file?
Looks like I beat you to the answer by about 3 mins, thanks for answering though. :) I have a follow-up though. The foreign key constraints are not getting created with "ON DELETE CASCADE" as expected. I tried this in both MSSQL and Postgres. Is this expected behavior? If so, is it possible to modify the FKs after they are reflected to set ondelete and onupdate as appropriate? My test code: http://paste.pocoo.org/show/399307/ And my output: CREATE TABLE blog_comments ( id INTEGER NOT NULL, blog_id INTEGER, CONSTRAINT blog_comments_pkey PRIMARY KEY (id), CONSTRAINT blog_comments_blog_id_fkey FOREIGN KEY(blog_id) REFERENCES blog (id) ) It would seem to be a reflection issue though, b/c if I create a table manually, the "ON DELETE CASCADE" is added correctly. On Jun 1, 8:36 pm, Michael Bayer wrote: > sure, you'd use the "mock" executor as in the second example > here:http://www.sqlalchemy.org/trac/wiki/FAQ#HowcanIgettheCREATETABLEDROPT... > > On Jun 1, 2011, at 8:01 PM, Randy Syring wrote: > > > > > > > > > I'd like to be able to dump an MS SQL server's objects to text on the > > local file system. I have a working solution for views, stored > > procedures, and functions, but tables are a different story. Can i > > use SA's reflection and table creation abilities to write create table > > DDL to a text file? > > > -- > > You received this message because you are subscribed to the Google Groups > > "sqlalchemy" group. > > To post to this group, send email to sqlalchemy@googlegroups.com. > > To unsubscribe from this group, send email to > > sqlalchemy+unsubscr...@googlegroups.com. > > For more options, visit this group > > athttp://groups.google.com/group/sqlalchemy?hl=en. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@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.
[sqlalchemy] Re: can I use SA to dump a table's DDL to a file?
In the FAQ...sorry: http://www.sqlalchemy.org/trac/wiki/FAQ#HowcanIgettheCREATETABLEDROPTABLEoutputasastring On Jun 1, 8:01 pm, Randy Syring wrote: > I'd like to be able to dump an MS SQL server's objects to text on the > local file system. I have a working solution for views, stored > procedures, and functions, but tables are a different story. Can i > use SA's reflection and table creation abilities to write create table > DDL to a text file? -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@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.
