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POHow to hide parts of the view given a user role on Rails 4
 

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  1. POHow to hide parts of the view given a user role on Rails 4
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    <p>I'm trying to hide parts of my views depending on the User role.</p> <p>So let's say I want only admins to be able to destroy Products. Besides the code in the controller for preventing regular users from destroying records, I would do the following in the view:</p> <pre><code>&lt;% if current_user.admin? %&gt; &lt;%= link_to 'Delete', product, method: :delete %&gt; &lt;% end %&gt; </code></pre> <p>The previous code works, but it's prone to errors of omission, which may cause regular users to see links to actions they are not allowed to execute.</p> <p>Also, if I decide later on that a new role (e.g. "moderator") can delete Products, I would have to find the views that display a delete link and add the logic allowing moderators to see it.</p> <p>And if there are many models that can be deleted only by admin users (e.g. Promotion, User) maitenance of all the ifs would be pretty challenging.</p> <p>Is there a better way of doing it? Maybe using helpers, or something similar? I'm looking for something maybe like this:</p> <pre><code>&lt;%= destroy_link 'Delete', product %&gt; # Only admins can see it &lt;%= edit_link 'Edit', promotion %&gt; # Again, only admins see this link &lt;%= show_link 'Show', comment %&gt; # Everyone sees this one </code></pre> <p>I found these two questions that are similar to mine, but none of them answered my question:</p> <p><a href="https://stackoverflow.com/questions/14076469/show-and-hide-based-on-user-role-in-rails">Show and hide based on user role in rails</a></p> <p><a href="https://stackoverflow.com/questions/4719319/ruby-on-rails-3-hiding-parts-of-the-view">Ruby on Rails (3) hiding parts of the view</a></p>
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