Replace snippets scopes in view and controller.

app/controllers/snippets_controller.rb

@@ -26,15 +26,15 @@ class SnippetsController < ApplicationController
 
     if @user == current_user
       @snippets = case params[:scope]
-                  when 'public' then
-                    @snippets.public
-                  when 'private' then
-                    @snippets.private
+                  when 'is_public' then
+                    @snippets.is_public
+                  when 'is_private' then
+                    @snippets.is_private
                   else
                     @snippets
                   end
     else
-      @snippets = @snippets.public
+      @snippets = @snippets.is_public
     end
 
     @snippets = @snippets.page(params[:page]).per(20)

app/views/snippets/current_user_index.html.haml

@@ -18,16 +18,16 @@
           All
           %span.pull-right
             = @user.snippets.count
-      = nav_tab :scope, 'private' do
-        = link_to user_snippets_path(@user, scope: 'private') do
+      = nav_tab :scope, 'is_private' do
+        = link_to user_snippets_path(@user, scope: 'is_private') do
           Private
           %span.pull-right
-            = @user.snippets.private.count
-      = nav_tab :scope, 'public' do
-        = link_to user_snippets_path(@user, scope: 'public') do
+            = @user.snippets.is_private.count
+      = nav_tab :scope, 'is_public' do
+        = link_to user_snippets_path(@user, scope: 'is_public') do
           Public
           %span.pull-right
-            = @user.snippets.public.count
+            = @user.snippets.is_public.count
 
   .col-md-9.my-snippets
     = render 'snippets'