what is Ruby on Rails?
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what is the role of Rails Controller?
What is the difference between save and save?
what is the difference between the Observers and Callbacks in Ruby on Rails?
What is the function of orm in ruby on rails?
What is the use of the super function in ruby on rails?
what is ORM (Object-Relationship-Model) in Rails?
What is the difference between concern and application_controller.rb in ruby on rails?
What is Rails?
When are self.up and self.down methods used?
how can we define Ruby regular expressions?
when self.up and self.down method is used?
what is active record?