🎨 (Marshmallow) Improve naming of schemas in Smorest section

We still need to update the e-book to show the new names.

Author: jslvtr

project/03-items-stores-smorest/schemas.py

@@ -1,29 +1,26 @@
 from marshmallow import Schema, fields
 
 
-class ItemSchema(Schema):
-    id = fields.Str(dump_only=True)
+class PlainItemSchema(Schema):
+    id = fields.Int(dump_only=True)
     name = fields.Str(required=True)
     price = fields.Float(required=True)
-    store_id = fields.Int(required=True)
 
 
-class ItemWithoutStoreSchema(Schema):
-    id = fields.Str(dump_only=True)
-    name = fields.Str(required=True)
-    price = fields.Float(required=True)
+class PlainStoreSchema(Schema):
+    id = fields.Int(dump_only=True)
+    name = fields.Str()
+
+
+class ItemSchema(PlainItemSchema):
+    store_id = fields.Int(required=True, load_only=True)
+    store = fields.Nested(lambda: PlainStoreSchema(), dump_only=True)
 
 
 class ItemUpdateSchema(Schema):
     name = fields.Str()
     price = fields.Float()
 
 
-class StoreSchema(Schema):
-    id = fields.Str(dump_only=True)
-    name = fields.Str(required=True)
-
-
-class StoreWitoutItemsSchema(Schema):
-    id = fields.Str()
-    name = fields.Str()
+class StoreSchema(PlainStoreSchema):
+    items = fields.List(fields.Nested(PlainItemSchema()), dump_only=True)