Add "Games Played" column in deck list

app/routers/decks.py

@@ -1,6 +1,6 @@
 from fastapi import APIRouter, Depends, HTTPException, Request
 from fastapi.responses import HTMLResponse
-from sqlalchemy import and_, or_
+from sqlalchemy import and_, or_, func
 from sqlalchemy.orm import Session
 
 from app.sql import models
@@ -70,6 +70,22 @@ def deck_create_html(request: Request, db=Depends(get_db)):
 @html_router.get("/list")
 def decks_html(request: Request, db=Depends(get_db)):
     decks = list_decks(db=db)
+    for deck in decks:
+        setattr(
+            deck,
+            "games_played",
+            db.query(func.count())
+            .select_from(models.Game)
+            .filter(
+                or_(
+                    *[
+                        getattr(models.Game, f"deck_id_{i+1}") == deck.id
+                        for i in range(6)
+                    ]
+                )
+            )
+            .scalar(),
+        )
     return jinja_templates.TemplateResponse(
         request, "decks/list.html", {"decks": decks}
     )

app/templates/decks/list.html

@@ -12,6 +12,7 @@
     <tr>
         <th>Deck Name</th>
         <th>Owner</th>
+        <th>Games Played</th>
     </tr>
     {% for deck in decks %}
     <tr>
@@ -19,6 +20,7 @@
             <a href="/deck/{{ deck.id }}">{{ deck.name }}</a>
         </td>
         <td>{{ deck.owner.name }}</td>
+        <td>{{ deck.games_played }}</td>
     </tr>
     {% endfor %}
 </table>