implemented new model for database, new routes for save. Fixed logout not allowing post requests

app/__init__.py

@@ -20,6 +20,7 @@ def create_app():
     login_manager.login_view = "login.login"
 
     from .models.user import User
+    from .models.gamestate import GameState
 
     with app.app_context():
         db.create_all()

app/models/gamestate.py

@@ -0,0 +1,11 @@
+from .. import db
+from flask_login import UserMixin
+
+class GameState(UserMixin, db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    user_id = db.Column(db.Integer, nullable=False)
+
+    board = db.Column(db.Text, nullable=False)  # JSON String
+    mode = db.Column(db.String(10), nullable=False)  # queens / rooks
+
+    created_at = db.Column(db.DateTime, default=db.func.now())

app/routes/login_routes.py

@@ -46,7 +46,7 @@ def login():
 
     return render_template("login.html")
 
-@login_bp.route('/logout')
+@login_bp.route('/logout', methods=['POST'])
 @login_required
 def logout():
     logout_user()

app/routes/main_routes.py

@@ -1,6 +1,9 @@
 from flask import Blueprint, jsonify, render_template, request
 from flask_login  import login_required, current_user
-import random
+import random, json
+from ..models.gamestate import GameState
+from ..models.user import User
+from .. import db
 
 main_bp = Blueprint("main", __name__)
 
@@ -73,3 +76,33 @@ def solve_rooks(n=8):
     random.shuffle(solution)
     return solution
 
+@main_bp.route("/save", methods=["POST"])
+def save_game():
+    data = request.json
+
+    board = data["board"]
+    mode = data["mode"]
+
+    game = GameState(
+        user_id=current_user.id,
+        board=json.dumps(board),
+        mode=mode
+    )
+
+    db.session.add(game)
+    db.session.commit()
+
+    return jsonify({"status": "saved"})
+
+@main_bp.route("/load")
+def load_game():
+    game = GameState.query.filter_by(user_id=current_user.id)\
+        .order_by(GameState.id.desc()).first()
+
+    if not game:
+        return jsonify({"board": [-1]*8, "mode": "queens"})
+
+    return jsonify({
+        "board": json.loads(game.board),
+        "mode": game.mode
+    })

app/static/js/dashboard.js

@@ -196,4 +196,39 @@ function updateQueenList() {
             count++;
         }
     }
-}
+}
+
+async function saveGame() {
+    await fetch("/save", {
+        method: "POST",
+        headers: {
+            "Content-Type": "application/json"
+        },
+        body: JSON.stringify({
+            board: board,
+            mode: mode
+        })
+    });
+
+    alert("💾 Spiel gespeichert!");
+}
+
+async function loadGame() {
+    const res = await fetch("/load");
+    const data = await res.json();
+
+    board = data.board;
+    mode = data.mode;
+
+    // Buttons richtig setzen
+    document.getElementById("btnQueens").classList.remove("active");
+    document.getElementById("btnRooks").classList.remove("active");
+
+    if (mode === "queens") {
+        document.getElementById("btnQueens").classList.add("active");
+    } else {
+        document.getElementById("btnRooks").classList.add("active");
+    }
+
+    drawBoard();
+}

app/templates/dashboard.html

@@ -62,6 +62,9 @@
                 <button class="btn" onclick="solve()">Solve</button>
                 <button class="btn" onclick="checkSolution()">Check</button>
                 <button class="btn secondary" onclick="resetBoard()">Reset</button>
+
+                <button class="btn" onclick="saveGame()">💾 Save</button>
+                <button class="btn" onclick="loadGame()">📂 Load</button>
             </div>
         </div>
 

database_setup.sql

@@ -5,3 +5,11 @@ CREATE TABLE users (
     email VARCHAR(120) NOT NULL UNIQUE,
     created_at DATETIME DEFAULT CURRENT_TIMESTAMP
 );
+
+CREATE TABLE game_state (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    user_id INTEGER NOT NULL,
+    board TEXT NOT NULL,       -- JSON String (z.B. "[0,4,7,5,2,6,1,3]")
+    mode TEXT NOT NULL,        -- "queens" oder "rooks"
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);