Added A Very Basic CMS

This evening I added a very basic CMS to my very basic blog.

First, I installed the gem by adding the following into my gemfile:

      gem 'devise'

then running

      $ bundle install

I then ran the generator as follows:

      $ rails generate devise:install

Next, I ran the model generator and the views generator:

      $ rails generate devise admin
      $ rails generate devise:views admin

I want to grant logged in users full CRUD access, but everyone else should only have read access. To do this, I added the below to the posts controller:

      before_filter :authenticate_admin!, except: [ :index, :show ]

In order to only show the create, update and destroy links in the show template, I simply had to add a little bit of logic as such:

      <% if admin_signed_in? %>
        <%= link_to "Edit post", edit_post_path(@post) %>
        <%= link_to "Delete", post_path(@post), method: :delete, data: {confirm: "Are you sure?"} %>
      <% end %>

And finally, in order to allow the admin user to log out, I added the following to the template:

      <% if admin_signed_in? %>
        | <%= link_to "New Post", new_post_path %>
        | <%= link_to('Logout', destroy_admin_session_path, :method => :delete) %>
      <% end %>

This turned out to be a lot easier than I expected. At least for my very simple use-case, this is super easy. The official README and How To pages are also very easy to read and helpful.