refs #30 simplify rel attribute

* do not output rel="start" by default
* do not output rel on first_page and last_page

app/views/kaminari/_first_page.html.erb

@@ -7,5 +7,5 @@
     remote:        data-remote
 -%>
 <span class="first<%= ' disabled' if current_page == 1 %>">
-  <%= link_to_unless current_page == 1, raw(t 'views.pagination.first'), url, :rel => (current_page == 2) ? 'start prev':'start', :remote => remote %>
+  <%= link_to_unless current_page == 1, raw(t 'views.pagination.first'), url, :remote => remote %>
 </span>

app/views/kaminari/_first_page.html.haml

@@ -6,4 +6,4 @@
     per_page:      number of items to fetch per page
     remote:        data-remote
 %span{:class => "first#{' disabled' if current_page == 1}"}
-  = link_to_unless current_page == 1, raw(t 'views.pagination.first'), url, :rel => (current_page == 2) ? 'start prev':'start', :remote => remote
+  = link_to_unless current_page == 1, raw(t 'views.pagination.first'), url, :remote => remote

app/views/kaminari/_last_page.html.erb

@@ -7,6 +7,5 @@
     remote:        data-remote
 -%>
 <span class="last<%= ' disabled' if current_page == num_pages %>">
-  <% opts = {:remote => remote}; opts[:rel] = 'next' if current_page == num_pages - 1 %>
-  <%= link_to_unless current_page == num_pages, raw(t 'views.pagination.last'), url, opts %>
+  <%= link_to_unless current_page == num_pages, raw(t 'views.pagination.last'), url, {:remote => remote} %>
 </span>

app/views/kaminari/_last_page.html.haml

@@ -6,6 +6,4 @@
     per_page:      number of items to fetch per page
     remote:        data-remote
 %span{:class => "last#{' disabled' if current_page == num_pages}"}
-  - opts = {:remote => remote};
-  - opts[:rel] = 'next' if current_page == num_pages - 1
-  = link_to_unless current_page == num_pages, raw(t 'views.pagination.last'), url, opts
+  = link_to_unless current_page == num_pages, raw(t 'views.pagination.last'), url, {:remote => remote}

app/views/kaminari/_page.html.erb

@@ -8,11 +8,5 @@
     remote:        data-remote
 -%>
 <span class="page<%= ' current' if page.current? %>">
-  <% 
-    opts = {:remote => remote}
-    opts[:rel] = 'start' if page.first?
-    opts[:rel] = 'next' if page.number == current_page + 1
-    opts[:rel] = opts[:rel].nil? ? 'prev' : opts[:rel] + ' prev' if page.number == current_page - 1
-  %>
-  <%= link_to_unless page.current?, page, url, opts %>
+  <%= link_to_unless page.current?, page, url, opts = {:remote => remote, :rel => page.next? ? 'next' : page.prev? ? 'prev' : nil} %>
 </span>

app/views/kaminari/_page.html.haml

@@ -6,10 +6,5 @@
     num_pages:     total number of pages
     per_page:      number of items to fetch per page
     remote:        data-remote
-    
 %span{:class => "page#{' current' if page.current?}"}
-  - opts = {:remote => remote}
-  - opts[:rel] = 'start' if page.first?
-  - opts[:rel] = 'next' if page.number == current_page + 1
-  - opts[:rel] = opts[:rel].nil? ? 'prev' : opts[:rel] + ' prev' if page.number == current_page - 1
-  = link_to_unless page.current?, page, url, opts
+  = link_to_unless page.current?, page, url, {:remote => remote, :rel => page.next? ? 'next' : page.prev? ? 'prev' : nil}

app/views/kaminari/_prev_page.html.erb

@@ -7,5 +7,5 @@
     remote:        data-remote
 -%>
 <span class="prev<%= ' disabled' if current_page == 1 %>">
-  <%= link_to_unless current_page == 1, raw(t 'views.pagination.previous'), url, :rel => (current_page == 2) ? 'start prev':'prev', :remote => remote %>
+  <%= link_to_unless current_page == 1, raw(t 'views.pagination.previous'), url, :rel => 'prev', :remote => remote %>
 </span>

app/views/kaminari/_prev_page.html.haml

@@ -6,4 +6,4 @@
     per_page:      number of items to fetch per page
     remote:        data-remote
 %span{:class => "prev#{' disabled' if current_page == 1}"}
-  = link_to_unless current_page == 1, raw(t 'views.pagination.previous'), url, :rel => (current_page == 2) ? 'start prev':'prev', :remote => remote
+  = link_to_unless current_page == 1, raw(t 'views.pagination.previous'), url, :rel => 'prev', :remote => remote

lib/kaminari/helpers/tags.rb

@@ -134,6 +134,16 @@ module Kaminari
           @page == @options[:num_pages]
         end
 
+        # the previous page or not
+        def prev?
+          @page == @options[:current_page] - 1
+        end
+
+        # the next page or not
+        def next?
+          @page == @options[:current_page] + 1
+        end
+
         # within the left outer window or not
         def left_outer?
           @page <= @options[:left]