first base of project-changed apps: Herd-livestock-tag-log-elasticsearch-

apps/core/permissions.py

@@ -0,0 +1,48 @@
+from rest_framework.permissions import BasePermissionMetaclass
+from apps.authorization import models as authorize_models
+import itertools
+import typing
+
+
+class BasePermission(metaclass=BasePermissionMetaclass):
+    """
+    A base class from which all permission classes should inherit.
+    """
+
+    def get_user_permissions(self, request, view) -> typing.Dict:  # noqa
+        """
+        get permissions by role and user specified permissions
+        combined permissions and returns a list
+        """
+        organization_type = []
+        permissions_info = {}
+        relations = request.user.user_relation.select_related()
+        for relation in relations:
+            role_permissions = list(itertools.chain(*[
+                    list(item.values()) for item in
+                    list(relation.role.permissions.prefetch_related().values('name'))
+                ]
+            ))
+            user_permissions = list(itertools.chain(*[
+                list(item.values()) for item in
+                list(relation.permissions.prefetch_related().values('name'))])
+            )
+            result = list(set(role_permissions + user_permissions))
+            organization_type.append(relation.organization.type.key)
+            permissions_info['organization_type'] = organization_type
+            permissions_info['permissions'] = result
+            print(result, permissions_info)
+        return permissions_info
+
+    def has_permission(self, request, view):  # noqa
+        """
+        Return `True` if permission is granted, `False` otherwise.
+        """
+
+        return True
+
+    def has_object_permission(self, request, view, obj):  # noqa
+        """
+        Return `True` if permission is granted, `False` otherwise.
+        """
+        return True