Add inschrijflink for start of academic year (#275)

* Add inschrijflink for start of academic year

* Rely on autoprefixer

content/assets/stylesheets/includes/navbar.scss

@@ -1,3 +1,5 @@
+@import 'mixins';
+
 #navbar {
     align-items: flex-end;
     margin-bottom: 10px;
@@ -61,4 +63,9 @@
             }
         }
     }
+
+    #ledenformulier {
+        color: $zeus-orange;
+        transform: rotate(10deg);
+    }
 }

layouts/partials/_navbar.erb

@@ -20,6 +20,11 @@
           <%= i[:title] %>
         </a>
         <% end %>
+        <% if new_member_time? %>
+          <a class="navbar-item" id="ledenformulier" href="https://zeus.gent/ledenformulier">
+            Schrijf je in!
+          </a>
+        <%end%>
       </div>
       <!-- TODO: Remove this is-hidden-touch, it's just a convenience for now -->
       <div class="navbar-end is-hidden-touch">

lib/helpers/time.rb

@@ -13,6 +13,11 @@ module TimeHelper
                ])
   end
 
+  def new_member_time?
+    year = Time.now.year
+    timehelper([[Time.new(year, 9, 20), Time.new(year, 10, 15)]])
+  end
+
   def timehelper(ranges)
     ranges.any? { |range| periodhelper(*range) }
   end