title: Rails: Naming conventions for attributes
body: <p>Im creating a model with the line </p>
  
  <pre><code>rails g scaffold contact firstname:string lastname:string email:string
  </code></pre>
  
  <p>But should the attributes be like </p>
  
  <pre><code>first_name:string 
  </code></pre>
  
  <p>instead? </p>