Is There a Rails Console Command (Rails 3+) to Reload Changed Code

Is there a Rails Console command (Rails 3+) to reload changed code?

Of course, simply type:

reload!

how do I reload a model in rails console?

reload! doesn't reinitialize existing objects, it just reloads the code. If you create a new instance of the class it should reflect the changes.

Reload the rails console

Yes, you need to call reload! as this will clear the loaded constants that have been loaded and will load them as they're referenced in the console.

If you have old objects from before the reload! you will need to call reload on these individual objects or find new objects and work with them if you want to try out the new method.

As an alternative, I would really recommend looking into a testing framework such as RSpec which gives you repeatable tests and a safety net for your application.

It looks like you're trying to use the console as a testing tool for new functionality in your application, which is what RSpec is better suited for. The console is really good for experimentation.

Why will Rails Console not load Changes to ruby file

If you're making changes to files that are stored within the app/ directory, you can reload these with the reload! command.

If you're making changes outside of that, you need to exit and restart your console.

As a note, the .rb extension is almost always omitted in a require call. Another thing to keep in mind is that require 'file' will look in your $LOAD_PATH for something called file.rb and will load in the first one. It's possible you have two files with the same name. Try renaming it to see if that has any effect.

Rails has a pretty good auto-loader so it's usually not necessary to use require if you put your files in the correct place to start with. For example, MyClass could go in app/models/my_class.rb and would load automatically. The autoloader can be configured to look in different places as well.

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