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    <p>Ok this is basic and you should be knowing this but still, I will tell you. The question is also vague so I will assume that you have a counter which is a number and a name for the counter. This is how you update any column from scratch.So first create </p> <pre><code> rails generate scaffold counter count:integer name:string </code></pre> <p>After this step. </p> <pre><code> def update @counter = Counter.find(params[:id]) if @counter.update_attributes(params[:counter]) redirect_to @counter, :flash =&gt; { :success =&gt; "Profile updated." } end end </code></pre> <p>After this create a view in edit.html.erb under views:</p> <pre><code>&lt;%= form_for(@counter) do |f| %&gt; &lt;div class="field"&gt; &lt;%= f.label :name %&gt;&lt;br /&gt; &lt;%= f.text_field :name %&gt; &lt;/div&gt; &lt;div class="field"&gt; &lt;%= f.label :count %&gt;&lt;br /&gt; &lt;%= f.text_field :count %&gt; &lt;/div&gt; &lt;div class="actions"&gt; &lt;%= f.submit "Update" %&gt; &lt;/div&gt; &lt;% end %&gt; </code></pre> <p>Go to counter.rb model and do the following:</p> <pre><code>class Counter &lt; ActiveRecord::Base attr_accessible :count, :name end </code></pre> <p>You dont have to add anything in the routes file because it already has the update resource. Now open the browser and if you say </p> <pre><code>localhost:3000/counter/1/update </code></pre> <p>after creating the first counter value then you can update stuff from there. </p> <p>This is how you updating can be done in ruby on rails. If you need more explanation regarding your code you should check the api documentation for rails it is a good start. I am a beginner too. </p>
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    1. COThank you So much!
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