convore.json/groups/django-community/how-can-you-rollback-a-deployment-when-the-db-changes/messages.json

[{"user_id": 4219, "stars": [], "topic_id": 20583, "date_created": 1303330782.0970919, "message": "but how do you rollback when there are db changes?", "group_id": 81, "id": 760889}, {"user_id": 1736, "stars": [], "topic_id": 20583, "date_created": 1303330850.133409, "message": "South creates reverse migrations by default, so just deploy the code and force a schema rollback", "group_id": 81, "id": 760912}, {"user_id": 1736, "stars": [{"date_created": 1303344376.052891, "user_id": 209}], "topic_id": 20583, "date_created": 1303330956.271616, "message": "I don't think nashvegas (yet) supports reverse migrations", "group_id": 81, "id": 760933}, {"user_id": 1736, "stars": [], "topic_id": 20583, "date_created": 1303331175.4100161, "message": "reverse the DB migration, then re-deploy the old code", "group_id": 81, "id": 760963}, {"user_id": 4219, "stars": [], "topic_id": 20583, "date_created": 1303330770.300159, "message": "I read how many people say they deploy many times per day, and rollback any screw ups.", "group_id": 81, "id": 760887}, {"user_id": 4219, "stars": [], "topic_id": 20583, "date_created": 1303330799.382297, "message": "or is it we 'rollback' in general terms, not in all cases like when there is a db schema change.", "group_id": 81, "id": 760893}, {"user_id": 1736, "stars": [], "topic_id": 20583, "date_created": 1303331166.2034631, "message": "I guess you should flip the order of those", "group_id": 81, "id": 760962}, {"user_id": 209, "stars": [], "topic_id": 20583, "date_created": 1303344433.608254, "message": "Oh, I guess patrick isn't on convore", "group_id": 81, "id": 763159}, {"user_id": 209, "stars": [], "topic_id": 20583, "date_created": 1303344415.5162001, "message": "@coderanger, I don't believe that reverse migrations are even really on the roadmap right now for south (cc @paltman)", "group_id": 81, "id": 763153}, {"user_id": 1736, "stars": [], "topic_id": 20583, "date_created": 1303345862.4239061, "message": "@issackelly For nashvegas you mean", "group_id": 81, "id": 763333}, {"user_id": 275, "stars": [], "topic_id": 20583, "date_created": 1303345589.167443, "message": "Don't rollback, roll forward! :P", "group_id": 81, "id": 763302}, {"user_id": 1736, "stars": [], "topic_id": 20583, "date_created": 1303345873.590672, "message": "They work fine in South :-)", "group_id": 81, "id": 763339}, {"user_id": 1127, "stars": [], "topic_id": 20583, "date_created": 1303348151.219775, "message": "I feel like a blog post is in order. This seems to get asked way too much :)", "group_id": 81, "id": 763797}, {"user_id": 1127, "stars": [], "topic_id": 20583, "date_created": 1303348498.578625, "message": "@coderanger Ya, you should never do that :)", "group_id": 81, "id": 763891}, {"user_id": 1127, "stars": [{"date_created": 1303395407.1502881, "user_id": 275}, {"date_created": 1303562121.495245, "user_id": 20170}], "topic_id": 20583, "date_created": 1303348183.8744171, "message": "on that note, you dont migrate backwards, only forwards, and all forward changes should not be required for your app to run, which means as long as they're backwards compatible (nullable) you shouldn't have to worry about data migration concerns", "group_id": 81, "id": 763802}, {"user_id": 1736, "stars": [], "topic_id": 20583, "date_created": 1303348484.352957, "message": "@zeeg That presumes you never do things like rename columns and the like", "group_id": 81, "id": 763884}, {"user_id": 209, "stars": [], "topic_id": 20583, "date_created": 1303358867.904479, "message": "@coderanger o yeah, nashvegas, whoops", "group_id": 81, "id": 765562}]