VietTH: Update kaminari layout

app/views/kaminari/_first_page.html.haml

+%li
+  = link_to_unless current_page.first?, raw(t 'views.pagination.first'), url, :remote => remote

app/views/kaminari/_gap.html.haml

+%li.disabled
+  = content_tag :a, raw(t 'views.pagination.truncate')

app/views/kaminari/_last_page.html.haml

+%li
+  = link_to_unless current_page.last?, raw(t 'views.pagination.last'), url, {:remote => remote}

app/views/kaminari/_next_page.html.haml

+%li
+  = link_to_unless current_page.last?, raw(t 'views.pagination.next'), url, :rel => 'next', :remote => remote

app/views/kaminari/_page.html.haml

+- if page.current?
+  %li.active
+    = content_tag :a, page, remote: remote, rel: (page.next? ? 'next' : (page.prev? ? 'prev' : nil))
+- else
+  %li
+    = link_to page, url, remote: remote, rel: (page.next? ? 'next' : (page.prev? ? 'prev' : nil))

app/views/kaminari/_paginator.html.haml

+= paginator.render do
+  %ul.pagination
+    = first_page_tag unless current_page.first?
+    = prev_page_tag unless current_page.first?
+    - each_page do |page|
+      - if page.left_outer? || page.right_outer? || page.inside_window?
+        = page_tag page
+      - elsif !page.was_truncated?
+        = gap_tag
+    = next_page_tag unless current_page.last?
+    = last_page_tag unless current_page.last?

app/views/kaminari/_prev_page.html.haml

+%li
+  = link_to_unless current_page.first?, raw(t 'views.pagination.previous'), url, :rel => 'prev', :remote => remote

app/views/search/_form_search.html.haml

@@ -8,7 +8,7 @@
       = label :query, 'Category: ', class: 'col-sm-2 control-label'
       = label :query, 'Category: ', class: 'col-sm-2 control-label'
       .col-sm-5
       .col-sm-5
         - cache("search-#{cache_key_for_categories}") do
         - cache("search-#{cache_key_for_categories}") do
-          = select_tag :category, options_from_collection_for_select(@categories.decorate, :id, :title, params[:category]), {include_blank: '-- Select category --', class: 'form-control chosen-select', multiple: true}
+          = select_tag :category, options_from_collection_for_select(@categories.decorate, :id, :title, params[:category].try(:map, &:to_i)), {include_blank: '-- Select category --', class: 'form-control chosen-select', multiple: true}
     .form-group
     .form-group
       = label :query, 'Product price: ', class: 'col-sm-2 control-label'
       = label :query, 'Product price: ', class: 'col-sm-2 control-label'
       .col-sm-2
       .col-sm-2