In my system I have rails 4.2.5
and ruby 2.2.3.
how can I update to rails 5.0.0.beta version.
Thank you.
The upgrade instructions for the current beta are available here.
You need to have a test suite with good coverage before you begin. Run rake rails:update to update your configs. You also need to follow the instructions on the upgrade page, which include changing class names to the ones that are currently in use.
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.
I received a ruby on rails application that was written three years ago
(Rails 4.2.1)
I need to update everything to current version of ruby, rails, rvm, bundler, rbenv, gems, etc...
Please help on process to achieving the update and the app to run not only locally but live.
To check what your ruby in now
$Ruby -v
Update it to ruby version 2.3.7
$rvm list known
$rvm install 2.3.7
$rvm use 2.3.7 --default
$gem install bundler
Let me know if does that help!
Hey dude upgrate from a very old to newest versions requires a lot of patient and skills. I found an article that might help you and also helped me before. I hope it can help you. Let me know if you have any more doubts
Upgrade ruby on rails project
Start a new Rails app with the latest Ruby, and use Test Driven Development to port the old app over, line by line.
Write a test that fails, copy a line out of the old app, pass the test, integrate & deploy, and repeat until all the features are installed - with tests.
TDD is where you write a test that fails, run it and make sure it fails for a correct, predictable reason, and only then add the production code that passes the test. Only integrate if all the tests pass. Learn more about TDD at its original web page: wiki.c2.com/?TestDrivenDevelopment . Learn to TDD in Rails by reading its flagship book, /Agile Web Development with Rails/.
The title sums it up pretty much.
I want to do it via the console using the `bundler. There are several changes on the way rails has handled things such as the frontend. More details over here.
Will I have to rewrite frontend of my app again? Will it be enough to just update the bins and executables manually? Or run $ rails app:update to overwrite old stuff.
Well, it may have been a joke back when you originally posted this question, but Rails 6.0.0 is now a reality! Released Aug. 15, 2019. I would recommend running gem update rails as a first try, but "updating" to Rails 6 was not so easy for my Windows 10 system.
If you used railsinstaller.org to install Rails previously, you will not be able to install Rails 6 with it - or update - at the time of this writing. In order to update to Rails 6 you must be running ruby 2.4.4 or greater, but railsinstaller.org is limited to ruby 2.3 max. Check your version with ruby -v. I used this tutorial to do a fresh install of Ruby 2.6 and Rails 6 while updating gem to 3.0.
I would recommend installing everything fresh so you know where all of your dependencies are and how they work. It will also be much easier to update each individual component this way -- unless you opt to use tools like rvm, which by nature will be easier.
If you're having issues and want a fresh install of the latest Ruby and Rails, read the article I linked :) I only posted this answer because I know railsinstaller.org was recommended to a lot of people (like me) as an easy install method back when it was being maintained.
Latest version — Rails 5.1.5 released February 14, 2018 .
Rails 6 is NOT released !! And if it was the case bundler should make it clean
The post you linked is just a joke. Anyway, Rails 6 is under development (since January 30 I believe). Just wait.
https://github.com/rails/rails/blob/master/version.rb
Just run on your terminal:
gem update rails
That worked for me.
I have my current application in Ruby 1.9.3 and I want to migrate it to ruby 2.0. I have googled it but couldn't find any resource that clearly describes the steps required to upgrade to 2.0. Can anyone give me the stepwise guide for migrating from ruby 1.9 to 2.0? thanks in advance.
This is a detailed instruction:
install new ruby version
run all tests
fix all errors
profit
You need to follow the following steps:
Install new Ruby Version
Run bundle install (you may need to update some gems and rails)
Run tests . (If you have coverage of all of you application. If not run the whole application manually and fix the errors. Most of the errors would be syntax and other small issues.)
Your application is migrated.
I am currently using Rails 2.1.0 and want to upgrade to Rails 2.1.1. After issuing the following command
gem update rails
I suppose that I need to change this line
RAILS_GEM_VERSION = '2.1.0' unless defined? RAILS_GEM_VERSION
in environment.rb
What other actions should I take to ensure that my application is using the latest version? Are there some other files that need an update?
You'll also need to go into your application directory and run the following command:
rake rails:update
Then run your tests and make sure everything works.
As far as I know, that right there defines what version of rails your application as a whole will use. I know for a project I'm in right now I had to override that to 2.1.1 to work on my VM because I had installed the latest, and had not specified the 2.1.0 as required by the project.
The biggest thing you have to watch out for is plugins and extensions that may override this setting, as well as incompatibility that will likely arise from changing versions.
Also there are some known issues with 2.1.1, unless there is a feature you absolutely need now, you may want to wait.