Add view suppliers view and suppliers API endpoint

This adds a simple view (mostly cribbed from the component view but
without the database stats) to view details for a given supplier,
currently lists the components they supply and name/email address pairs for
representatives however there's room to add fields for other representative
contact and company information as well.

On the API side this adds 3 endpoints:
    * api/suppliers: returns a list of all suppliers and their
    representatives
    * api/suppliers/<id>: returns a supplier object containing the
    representatives for the given supplier
    * api/suppliers/<id>/components: returns a supplier object
    containing a list of components supplied by the given supplier

This also contains minor documentation and base template changes, fixing
the navigation menu to use class="active" on the currently selected page
(previously didn't work due to page_name capitalization)

1 files changed, 14 insertions, 2 deletions

diff --git a/procurement/api.py b/procurement/api.py
index 0419ce8..d1830c2 100644
--- a/procurement/api.py
+++ b/procurement/api.py
@@ -1,7 +1,7 @@
 from rest_framework.generics import ListAPIView, RetrieveAPIView
 
-from procurement.models import Component
-from procurement.serializers import ComponentSerializer
+from procurement.models import Component, Supplier
+from procurement.serializers import ComponentSerializer, SupplierSerializer, SupplierComponentsSerializer
 
 
 class ComponentAPIList(ListAPIView):
@@ -12,3 +12,15 @@ class ComponentAPIList(ListAPIView):
 class ComponentAPIRetrieve(RetrieveAPIView):
     queryset = Component.objects.all()
     serializer_class = ComponentSerializer
+
+class SupplierAPIList(ListAPIView):
+    queryset = Supplier.objects.filter(is_authorized=True)
+    serializer_class = SupplierSerializer
+
+class SupplierAPIRetrieve(RetrieveAPIView):
+    queryset = Supplier.objects.filter(is_authorized=True)
+    serializer_class = SupplierSerializer
+
+class SupplierAPIComponents(RetrieveAPIView):
+    queryset = Supplier.objects.filter(is_authorized=True)
+    serializer_class = SupplierComponentsSerializer