title: Laravel Validator unique value
body: <p>I am trying to validate an email address in my Customer table. There is a column in the Customer table called Brand where effectively the same email address could be registered to multiple brands for example:</p>
  
  <pre><code> Email               Brand
   me@mywebsite.com    firstsite.com
   me@mywebsite.com    secondsite.com
  </code></pre>
  
  <p>When validating the email address I need to check the email is unique in the Customer table for the current Brand. Currently my validation rule looks like this</p>
  
  <pre><code> $rules = array('email' =&gt; 'required|email|unique:Customer,Email');
  </code></pre>
  
  <p>however Brand must appear in there someone to say the email must be unique to the customer for the current brand</p>
  
  <p>Any help much appreciated</p>