I am making a portfolio page in rails. On the front page I have an "About" section where I have a personal description of myself. I want to be able to change this dynamically (not hard-coded html).

I would like to have the description be a text variable or string that I can modify through a form in the view section.

Questions
1. How should I declare this variable in the controller?
2. How do I access and change it from the form in the view?
3. Is there a better solution to my problem?