Write the command to update rvm in rails.
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Explain about restful architecture?
How many types of variables are available in ruby class?
what are some advantages of using ruby on rails?
How many types of associations relationships does a model have?
what is Cross-Site Request Forgery (CSRF) and how Rails is protected against it?
Who designed active record in rails?
Why we use migration in rails?
How to serialize data with yaml?
What is the current version of ruby on rails?
what is the difference in scope for these two variables: @@name and @name?
What is the purpose of load in ruby?
If you want to set up a one-to-one relationship between two models, you'll need to add belongs_to to one, and has_one to the other. How do you know which is which?