Currently I am using rails 2.3.10, I want to update my rails version to version 3.
What's the command to update rails?
So, the basic command would be:
gem update rails
But, upgrading from 2.3.x to 3.x isn't a trivial task... you should really read up a little more on it before you do so.
Ryan Bates shows you how to do it here. The Rails version you are using are completely different so you will have to upgrade Rails and then use this plugin to help upgrade your application unless you already know everything.
Related
Trying to migrate application from Rails-1.1.2 to 2.0.0 to current version.
Basic problem is can't find documentation for it.
I think in Rails 1.1.2 they don't have command to update the application like bundle update rails or rails app:update.
Directly changing ruby version gives boot error.
The first thing you need to do is to upgrade your Rails app to version 1.2.6, which is documented here.
After that you can upgrade to Rails 2.0, which is documented here.
The Rails releases page might be a useful page for you to check out, since they hold the info on how to upgrade. Like you said, there's hardly any information on how to upgrade the older Rails versions, so the official releases page is your best bet.
I'd upgrade to each release individually, so from 1.1.2 to 1.2.0, then to 1.2.6. Then go to 2.0, 2.1, etc. Update your Ruby seperate from it.
You can't directly migrate rails-1.1.x to rails-2.0 due to till Rails 2.3 doesn't have built-in bundler support because it came out before Bundler and no Gemfile in rails also that not a good way to directly update the ruby.
Note: before migrate to any version make sure you have more than 70% test coverage.
Steps help to migrate
Change the rails version (rails 1.1.x to rails 2.0) manually (means in vendor folder).
Run the test case and fix the failing syntax in your code (If any)
Then migrate rails 2.0 to rails 2.higher version (make sure higher than rails 2.3)
Again Run the test case and fix the failing syntax in your code (If any)
Then migrate rails 2.x to rails 3 pre version
Now you can add Gemfile put all gems into that upgrade your bundler gem.
Now you can migrate the ruby version as well.
Again Run the test case and fix the failing syntax in your code (If any)
Then migrate rails 3.0-pre to rails 3.higher version
Again Run the test case and fix the failing syntax in your code (If any)
Then migrate rails 3.x to rails 4 pre version
Now you can migrate the ruby version as well.
This is very long successful process for rails migration if your rails version older that 3.0.
There is one more way to achieve that. If you just want a Gemfile, rather than Bundler integration with Rails, you can create one easily enough.
gem install bundler
bundle init
Then follow below Guide to The Rails Command Line may help you, especially the section that covers rake gems:install.
https://guides.rubyonrails.org/v2.3.11/command_line.html#rake-is-ruby-make
I hope that help you.
Before looking at starting to upgrade an app from such an old version of Rails, I'd suggest reviewing how complicated it is and questioning if it would actually be quicker to build from scratch in the most recent version rather than go through so many upgrades.
First of all, I think it isn't a prohibited question on StackOverflow since it's a precise question about environment, an objective question. But if it's prohibited, please tell me.
Currently I'm developing a specific project that is using Ruby 1.9.3 and Rails 3.2.3, at the moment we can't upgrade to Rails 4 because the project dependencies.
My question is:
Using Rails 3.2.3, we can upgrade to a newest Ruby version? If so, what version: Ruby 2.0, Ruby 2.1.2 or another one?
Also, I searched on Google and StackOverflow and I don't find a question like that.
Thanks!
The first release of rails that officially support ruby 2.0 was 3.2.13 (see the announcement on the rails blog.
I deployed several applications running 3.2.15-3.2.17 and ruby 2.0 (They've since been upgraded to rails 4) without any problems that I recall.
The recently released 3.2.22 supports ruby 2.2 (announcement)
According to the Travis configuration, Rails 3.2.3 was only tested with Ruby 1.8.7, 1.9.2 and 1.9.3, so it doesn't seem to be a good idea to use a later version of Ruby (but you can always test it yourself.) However, Rails 3.2.3 has some known security vulnerabilities that have been patched in 3.2.19.
On the other hand, the configuration for Rails 3.2.19 does suggest that the developers expect it to work with Ruby 2.0.0. Your project might benefit from investing some effort to see if you can upgrade from Rails 3.2.3 to 3.2.19, and test a combination of that with Ruby 2.0 for your application, if there are new Ruby features that you need and cannot efficiently backport them. Bear in mind that the only recent answer to a similar question warns of 'weird issues' from such a combination. Also consider that the latest Rails 3.2 release notes do not mention Ruby 2.0.
I would like to upgrade one of my application from rails -2.3.11 to 4.0.0.
Before going to do anything, I just need plan for it and my application not that
much of big size but got some 6/7 plugins and 5/6 gems.
Existed : Ruby 1.8.7 + Rails 2.3.11
Expected : Ruby 2.0.0 + Rails 4.0.0
For this, I have plan as in two ways like below,
1).Multi-step process : First need to upgrade app from rails 2.* to 3.* and then
do upgrade from rails 3.* to 4.0.0
2).Create new application from rails - 4.0.0 and rebuild old application all
features as we have already css, layouts...
I hope both strategies will take same time.
Any how, I need some inputs from you all. So please share your thoughts/comments.
Thanks in advance.
check these casts ,it will help you migrating from rails 2 to rails 3 and then from rails 3 to rails 4
they are very helpfull
http://railscasts.com/episodes/225-upgrading-to-rails-3-part-1
http://railscasts.com/episodes/226-upgrading-to-rails-3-part-2
http://railscasts.com/episodes/227-upgrading-to-rails-3-part-3
and then upgrading to rails 4
http://railscasts.com/episodes/415-upgrading-to-rails-4
First, you could upgrade your Ruby gradually to 2.1.1. Then start to upgrade your Rails app from 2 to 3, finally upgrade to 4. If you have good test coverage, you could make sure that you did not break anything. Rewrite is also an option. I recommend you read this article A Guide for Upgrading Ruby on Rails.
I am using Ruby on Rails 3.2.9 and on the official blog it has been posted the following article: "[SEC] [ANN] Rails 3.2.13, 3.1.12, and 2.3.18 have been released!".
My question is: Which Ruby on Rails version should I upgrade to?
Note: I ask this because in the linked blog post (and in related linked pages) there is a bit of confusion. I would be grateful if someone would tell me a little more about the upgrades.
I suggest to upgrade to the latest release of the branch you are currently using, i.e. from 3.2.9 to 3.2.13.
rails current stable version(3.2.13)
I have updated rails and have rails -v and it says 3.0.5. (which is good) when i open my old programs, will it still always use 3.0.4 as that is what was used?
And ..
when i create new one will it use 3.0.5
I have done this as i'm a newbie and having problems with tutorials from the rails by example book michael hartl and wondering if it is the version that is giving the problems.
Thanks for any help..
In Rails 3 Bundler was added to handle gem dependencies. Within each application a Gemfile exists that specifies the version of Rails to use. If you want to update an application change the version in your Gemfile and run bundle install.