add available items button on item list page

items/views.py

@@ -14,6 +14,7 @@ from sales.models import ItemSale
 def list_items(request):
     page_query = request.GET.get('page', 1)
     mine_query = request.GET.get('mine')
+    avail_query = request.GET.get('avail')
     search_form = SearchItemForm(request.GET or None)
 
     # If the 'mine_query' query string is present, show the user's items
@@ -25,10 +26,13 @@ def list_items(request):
             Q(name__icontains=search_form.cleaned_data.get('search')) |
             Q(whereabouts__icontains=search_form.cleaned_data.get('search')) |
             Q(description__icontains=search_form.cleaned_data.get('search'))
-        )
+        ).order_by('-list_date')
     else:
         item_list = Item.objects.all().order_by('-list_date')
 
+    if avail_query:
+        item_list = item_list.filter(available=True).order_by('-list_date')
+
     paginator = Paginator(item_list, 20)
 
     try:

web/templates/items/list_items.html

@@ -8,6 +8,7 @@
       <h2>View Items</h2>
       {% if request.user.is_authenticated %}
       <a href="{% url 'list_items' %}?mine=true" class="button">Your Items</a>
+      <a href="{% url 'list_items' %}?{{ request.GET.urlencode }}&avail=true" class="button alt">Available Items</a>
       <a href="{% url 'list_items' %}" class="button alt">All Items</a>
       {% endif %}
       <form method="GET" enctype="multipart/form-data" action="">