add EdgeDB dataschema and module

.gitignore

@@ -7,3 +7,4 @@
 __pycache__/
 data/
 .env
+*.edgeql

dbschema/default.esdl

@@ -0,0 +1,82 @@
+module default {
+
+  type GameBoard {
+    overloaded required id: uuid {
+      readonly := true;
+      constraint exclusive;
+    }
+    url: str {
+      readonly := true;
+    }
+    required created_at: datetime {
+      readonly := true;
+    }
+    required turns: int32 {
+      readonly := true;
+    }
+    required map: str {
+      readonly := true;
+    }
+    required single type: GameType {
+      readonly := true;
+      on source delete delete target;
+    }
+    required single ruleset: Ruleset {
+      readonly := true;
+      on source delete delete target;
+    }
+    required winner: str {
+      readonly := true;
+    }
+    required multi moves: Moves {
+      readonly := true;
+    }
+    required single snake: Snake {
+      readonly := true;
+      on source delete delete target;
+    }
+  }
+
+  type GameType {
+    required name: str {
+      readonly := true;
+    }
+    required is_ladder: bool {
+      readonly := true;
+    }
+  }
+
+  type Ruleset {
+    required name: str {
+      readonly := true;
+    }
+    required version: str {
+      readonly := true;
+    }
+    required settings: json {
+      readonly := true;
+    }
+  }
+
+  type Snake {
+    required type: str {
+      readonly := true;
+    }
+    calculations: array<json> {
+      readonly := true;
+    }
+  }
+
+  type Moves {
+    required turn: int32 {
+      readonly := true;
+    }
+    required snake_move: str {
+      readonly := true;
+    }
+    required game_board: json {
+      readonly := true;
+    }
+  }
+
+}

edgedb.toml

@@ -0,0 +1,2 @@
+[edgedb]
+server-version = "5.3"

requirements.txt

@@ -1,5 +1,6 @@
 blinker==1.7.0
 click==8.1.7
+edgedb==1.9.0
 Flask==3.0.3
 itsdangerous==2.2.0
 Jinja2==3.1.3

server/GameBoard.py

@@ -138,3 +138,4 @@ class GameBoard:
   def save(self, store_class, **kwargs):
     store = store_class(**kwargs)
     store.save(self)
+    del store