add passage attribute to item and bundles generation method for solver run

app/models/solver_run.py

@@ -27,3 +27,17 @@ class SolverRun(BaseModel):
   def remove_items(self, items):
     self.items = [item for item in self.items if item not in items]
     return True
+
+  def bundles(self, type_attribute):
+    bundles = []
+
+    for item in self.items:
+      attribute_id = getattr(item, type_attribute)()
+      bundle_index = next((index for (index, bundle) in enumerate(bundles) if bundle['id'] == attribute_id), None)
+
+      if bundle_index == None:
+        bundles.append({ 'id': item.passage, 'count': 1, 'type': type_attribute })
+      else:
+        bundles[bundle_index]['count'] += 1
+
+    return bundles