Road to learning Ruby On Rails. How much Ruby Should I know Before Learning Rails?

I’m currently learning Ruby on Rails and ran into a beginners problem where I couldn’t read the Ruby Syntax.

I decided to learn some Ruby.

I’ve almost finished this Chris Pines Learn To Program First Edition. http://ift.tt/1qySfNK

I have done about half the exercise on here Learn Ruby The Hard Way. http://ift.tt/1pbR6PP

How much ruby do you think a beginner such as myself should know before moving onto rails?

How long did it take you to learn enough ruby that you felt you have a decent grasp?

If you are a ruby on rails programmer what’s your advice to a beginner learning Ruby On Rails?

What’s some things you wished you knew when you first started learning Ruby on Rails?