Refine permissions and style

app/controllers/rooms_controller.rb

@@ -16,6 +16,7 @@ class RoomsController < ApplicationController
     @rooms = Room.public_rooms
     @message = Message.new
     @messages = @room.messages
+    @new_room = Room.new
 
     render "index"
   end

app/policies/message_policy.rb

@@ -35,22 +35,22 @@ class MessagePolicy
   end
 
   def new?
-    @user.admin?
+    @user.signed_in?
   end
 
   def create?
-    @user.admin?
+    @user.signed_in?
   end
 
   def edit?
-    @user.admin?
+    @user.admin? || @user == @message.user
   end
 
   def update?
-    @user.admin?
+    @user.admin? || @user == @message.user
   end
 
   def destroy?
-    @user.admin?
+    @user.admin? || @user == @message.user
   end
 end

app/policies/room_policy.rb

@@ -35,22 +35,22 @@ class RoomPolicy
   end
 
   def new?
-    @user.admin?
+    @user.admin? || @user.signed_in?
   end
 
   def create?
-    @user.admin?
+    @user.admin? || @user.signed_in?
   end
 
   def edit?
-    @user.admin?
+    @user.admin? || @user == @room.user
   end
 
   def update?
-    @user.admin?
+    @user.admin? || @user == @room.user
   end
 
   def destroy?
-    @user.admin?
+    @user.admin? || @user == @room.user
   end
 end

app/views/layouts/_navigation_links.html.erb

@@ -14,6 +14,9 @@
     <% if policy(:table).index? %>
       <li><%= link_to 'Tables', tables_path %></li>
     <% end  %>
+    <% if policy(:room).index? %>
+      <li><%= link_to 'Chat', rooms_path %></li>
+    <% end  %>
     <% if current_user.signed_in? %>
       <% if current_user.admin? %>
         <li><%= link_to 'Users', users_path %></li>

app/views/layouts/_new_room_form.html.haml

@@ -1,3 +1,3 @@
-= form_with(model: @new_room, remote: true) do |f|
+= form_with(model: @new_room, remote: true, url: rooms_path) do |f|
   = f.text_field :name, class: "form-control", autocomplete: 'off'
   = f.submit data: { disable_with: false }

app/views/rooms/index.html.haml

@@ -5,7 +5,11 @@
   .contain
     #messages
       = render @messages
-    = render partial: 'layouts/new_message_form'
+    - if current_user.signed_in?
+      = render partial: 'layouts/new_message_form'
+    - else
+      = link_to "Sign in", new_session_path(current_user)
+      to join the chat
 
 %h1 Rooms index