title: Rails link_to how to show blank when null
body: <p>I have this in my view:</p>
  
  <pre><code> &lt;td&gt;&lt;%= link_to product_sale.product.consignor.try(:NAME), { controller: :consignors, action: :edit, ID: product_sale.product.consignor.try(:ID) }, :target =&gt; "_blank" %&gt;&lt;/td&gt;
  </code></pre>
  
  <p>which in product_sale view links to edit consignors for products listed. </p>
  
  <p>Some product doesn't have consignor. When that happens, it shows <code>/consignors/edit</code></p>
  
  <p>How can I show it blank instead?</p>