title: Add default table field when creating new obect Ruby on Rails 3
body: <p>My models are: <code>Projects</code> <code>has_many</code> <code>Feeds</code>.  I just added a column to my Feeds table called <code>feed_error</code>.  I currently have a form on the app that creates a new Feed when entered.  I want to be able to set <code>feed_error</code> to <code>false</code> by default.  In my feeds_controller, I have my create method:</p>
  
  <pre><code>def create
  @feed = Project.find(params[:project_id]).feeds.build(params[:feed])
  
  respond_to do |format|
    if @feed.save
      format.html { redirect_to( :back, :notice =&gt; 'Feed was successfully created.') }
      format.xml  { render :xml =&gt; @feed, :status =&gt; :created, :location =&gt; [@feed.project, @feed] }
    else
      format.html { render :action =&gt; "new" }
      format.xml  { render :xml =&gt; @feed.errors, :status =&gt; :unprocessable_entity }
    end
  end
  end
  </code></pre>
  
  <p>I was thinking I could try adding <code>:feed_error =&gt; 'false'</code> to the params, but that doesn't seem to work.  How do I set this field by default?</p>