added consumable resources

ordr2/resources/admin.py

@@ -1,10 +1,10 @@
 from pyramid.security import Allow, Authenticated, Deny, DENY_ALL, Everyone
 
 from .base import BaseResource, PaginationResourceMixin
-from ordr2.models import User, Role
-
+from ordr2.models import Category, Consumable, User, Role
 
 
+# user accounr resources
 
 class UserAccount(BaseResource):
     def __acl__(self):
@@ -67,6 +67,68 @@ class UserList(BaseResource, PaginationResourceMixin):
 
 
 
+# consumables resources
+class ConsumableResource(BaseResource):
+    def __acl__(self):
+        return [
+            (Allow, 'role:admin', 'view'),
+            (Allow, 'role:admin', 'edit'),
+            (Allow, 'role:admin', 'delete'),
+            DENY_ALL
+            ]
+
+
+class ConsumableList(BaseResource, PaginationResourceMixin):
+    sql_model_class = Consumable
+    child_resource_class = ConsumableResource
+    default_sorting = 'cas.asc'
+    default_items_per_page = 12
+
+    def __acl__(self):
+        return [
+            (Allow, 'role:admin', 'view'),
+            (Allow, 'role:admin', 'edit'),
+            (Allow, 'role:admin', 'delete'),
+            DENY_ALL
+            ]
+
+
+    def prepare_filtered_query(self, dbsession, filter_params):
+        ''' setup the base filtered query '''
+        query = dbsession.query(self.sql_model_class)
+        category_name = filter_params.get('category', None)
+        try:
+            category_name = cat_name.lower()
+            category = Category(category_name)
+            query = query.filter_by(category=category)
+        except (AttributeError, ValueError):
+            category_name = None
+        self.filters['category'] = category_name
+        return query
+
+
+    def prepare_sorted_query(self, query, sorting):
+        ''' setup the base filtered query '''
+        available_fields = {
+            'cas': 'cas_description',
+            'category': 'category',
+            'catalog': 'catalog_nr',
+            'vendor': 'vendor',
+            'pkg': 'package_size',
+            'price': 'unit_price',
+            'currency': 'currency'
+            }
+        name = available_fields.get(sorting.field, None)
+        model_field = getattr(self.sql_model_class, name, None)
+        if model_field:
+            sort_func = sorting.func(model_field)
+            query = query.order_by(sort_func)
+        default_sort = self.parse_sort_parameters(self.default_sorting)
+        if sorting.field != default_sort.field:
+            default_sort = self.parse_sort_parameters(self.default_sorting)
+            query = self.prepare_sorted_query(query, default_sort)
+        return query
+
 class Admin(BaseResource):
 
     nodes = {