What is the difference between concern and application_controller.rb in ruby on rails?
How to find second max element from database ?
What is the naming convention for variables?
what is the difference between destroy and delete?
difference between form_for and form_tag
Tell me what is coc in rails?
how many types of callbacks available in ror?
What are gemsets in rails?
What is the function of orm in ruby on rails?
What is active record in rails?
what is the difference in scope for these two variables: @@name and @name?
What are generators in ruby on rails?
Explain the various ide's of ruby on rails.