Fix more foreing key usages

Also refactors user info to class

inventory-app/api.py

@@ -32,24 +32,17 @@ def view_users():
 @page_api.route("/cards", methods=["POST"])
 @check_api_key
 def get_group_cards():
-    groups = request.json.get("groups", False)
-    if not groups:
+    request_groups = request.json.get("groups", False)
+    if not request_groups:
         return "must specify groups in parameter", 400
-    print(f"groups requested are: {groups}")
+    print(f"groups requested are: {request_groups}")
     print(f"found users: {users}")
-    gu = []
+    keys = []
     for u in users:
-        for gr in u["status"]["groups"]:
-            group_name = f"{gr['prefix']}:{gr['name']}"
-            print(f"prefix is {gr['prefix']}")
-            print(f"name is {gr['name']}")
-            print(f"group name is {group_name}")
-            for group in groups:
-                print(f"checking {group}")
-                if group_name == group:
-                    gu.append(u)
-    print(f"gu is: {gu}")
-    keys = list(map(lambda u: u["metadata"]["name"], gu))
+        for group in u.groups:
+            if group in request_groups:
+                keys.append(u.username)
+                break
     print(f"keys are {keys}")
     flt = {
         "token.uid_hash": {"$exists": True},