Afegir temes coocurrents

folkugat_web/model/temes.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import dataclasses
 import datetime
 import enum
@@ -110,6 +112,7 @@ class Tema:
     creation_date: datetime.datetime = dataclasses.field(default_factory=datetime.datetime.now)
     # Stats
     stats: Stats | None = None
+    played_with: list[CommonlyPlayedTema] | None = None
 
     def ngrams(self) -> NGrams:
         return ngrams.get_text_ngrams(self.title, *self.alternatives)
@@ -149,6 +152,12 @@ class Tema:
         return bool(self.lyrics)
 
 
+@dataclasses.dataclass
+class CommonlyPlayedTema:
+    tema: Tema
+    count: int
+
+
 class TemaCols(enum.Enum):
     NOM = "nom"
     COPS_TOCAT = "cops_tocat"