Updating rails 2 2
So far there has been 3 updates (4.1.4) over time and changes are not feature breaking.
I would recommend now would be a good time to start migrating to rails 4.1 I am going to give it a shot and see how far I can go. So far there has been 3 updates (4.1.4) over time and changes are not feature breaking.
Make sure you have a decent suite of tests and they are all passing before you start with the upgrade.
If you’re on Rails 3.2, it is tempting to upgrade directly to Rails 4.2. Instead, upgrade first to 4.0.x, then 4.1.x, and finally 4.2.x.
There's still some time left (about a year) before the archive is frozen, but I would like to be assured that everything will be solved by that time. For examples: source:tags/2.4.2/test/unit/issue_test.rb#L52 So, I use config.active_record.whitelist_attributes = false.
awesome_nested_set master branch requires Rails4.https://travis-ci.org/marutosi/redmine/builds/16771785 Redmine on Rails3 tests fail on awesome_nested_set 2-1-stable branch.https://travis-ci.org/marutosi/redmine/builds/16771672 == 105 Build Projects Tree: migrating =========================================== rake aborted!
RAILS_GEM_VERSION ②, modified: app / controllers / rename for under application_Rails are Application Controller controller base class, in Rails 2.3.0 before, Application Controller category stored in app / controllers / document, and in Rails 2.3.0, this category has been stored in app / controllers / application_controller. This compared with the helper classes application_in naming style on the more unified, if you are using the Rails project Rails 2.3.0 version generated before, when you will update Rails to Rails 2.3.0 database after the necessary manual will be app / controllers / manually renamed the app / controllers / application_
If you do not change the file name, the system will be prompted an error: uninitialized constant Application Controller Quote from: sample code with executorsjava chat program example Incorrect column count: expected 1, actual 33spring remote services strutseasyui tree empty folder 188.8.131.52：8088
If you run into problems, it is easier to figure out what changed between the minor versions rather than looking at all the changes.' app/controllers/application_controller.rb:106:in `find_current_user' app/controllers/application_controller.rb:87:in `user_setup' Use attribute writers instead of before_create callback to normalize comments and committer (#14534).Unlike other adapters, SQLite raises Encoding:: Undefined Conversion Error before the callback that reencodes attributes is called.I would recommend now would be a good time to start migrating to rails 4.1 I am going to give it a shot and see how far I can go.Rails 4.2 is about to be released and will be the last 4.x branch.