Open a new command prompt to get the path changes. Amit Thawait Amit Thawait 4, 2 2 gold badges 30 30 silver badges 23 23 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Making Agile work for data science. Stack Gives Back Featured on Meta. This isn't always as practical as direct modification, of course. For educational purposes when it doesn't matter if modifications are lost , it's fine, and makes more sense than duplicating everything.
Sometimes cloning a repo and using it, particularly during exploratory phases, is cleaner. Dave Newton's advice is wisdom and you should take it, but there's nothing wrong with taking a look at it to learn something. Running gem env will show you where your gems are installed; the lib directory is where you tend to find the meat of the code.
Gems are made to be updated when improvements and bug-fixes are made. That will instantly wipe out the changes you have done, breaking your code. You can freeze your version by making it read-only, or use bundler or copying the entire Ruby distribution, but in each of those you are going against the flow.
I used to work at a major corporation that decided it was a good idea to make a patch to one of the source files in their mail system. The software was not something they wrote themselves, so, as time went by, they spent more and more time having to roll in their "special" changes to the software as the vendor grew the product.
Eventually, it took months to roll in the changes and made the software fragile, which is not a good thing for something that is a core-business service. Ruby's ability to redefine a method would have saved them untold dollars and months of work. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?
Collectives on Stack Overflow. Learn more. Can I edit the gem installed using 'gem install' or from my gemfile? Ask Question. Asked 10 years ago. Active 10 years ago. Viewed 11k times. On my server or laptop for that matter whenever I install a gem using: gem install mygemname or in my gemfile: gem 'mygemname' It will install on the computer to some folder on my computer.
Blankman Blankman k gold badges silver badges bronze badges. I also want to do the same. If you need to connect to a remote server or a different port, try:.
Then run bundle install. It will automatically hook into Rails or Merb on application boot. Mina is a server automation and deployment tool.
Mina is substantially faster than Capistrano, which is a remote server automation tool. This is because it creates a Bash script for an entire procedure and remotely runs it on the server. Thus, it reduces the load on SSH connections. Pagy gem is agnostic pagination in plain ruby: it works with any framework, ORM, and DB type, with all types of collections, including pre-paginated, scopes, Arrays, JSON data… and pretty much anything else you can think of. Easy to use and personalize, as well as quick and light.
If you use Bundler, add the gem in the Gemfile, optionally avoiding the next major version with breaking changes e. When developing Ruby on Rails web projects, using Ruby on Rails gems is normal to practice. The gems listed above are capable of resolving any common Rails app development difficulty. For example, uploads, file checking, authentication, and authorization difficulties can all be easily resolved using these.
Furthermore, these ruby gems rails eliminate the need to reinvent the wheel for each project. Nonetheless, the gems will not solve all of your application development issues but can assist you in a smoother and faster development process.
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