add effective user&strategy and strategy result show time interval to second

main.py

@@ -95,7 +95,18 @@ def rolling_optimize(ret, lookback=126, backtest=126, role="max_sharpe", gamma=N
 @app.route('/')
 # @cache.cached(timeout=300)
 def index():
-    return render_template('base.html')
+    conn = psycopg2.connect(**SQL_CONFIG)
+    cur = conn.cursor()
+    # Number of effective users
+    cur.execute("select count(b.a) as num_effective_users from (select min(id) as a from strategy group by username) as b")
+    num_effective_users = cur.fetchone()[0]
+    # Number of effective strategies
+    cur.execute("select count(id) as num_effective_strategies from strategy where annual_sr!=0")
+    num_effective_strategies = cur.fetchone()[0]
+    cur.close()
+    conn.close()
+
+    return render_template('base.html',num_effective_users=num_effective_users, num_effective_strategies=num_effective_strategies)
 
 # Login Page
 @app.route('/login')

templates/base.html

@@ -184,6 +184,7 @@
             {% endwith %}
             {% cache 300 %}
             <div class="prose lg:prose-xl p-3">
+                <h2 class="text-xl font-bold mb-4">有效使用者數：{{num_effective_users}}、有效策略數：{{num_effective_strategies}}</h2>
                 <h2 class="text-xl font-bold mb-4">平台簡介</h2>
                 <hr class="mt-0 mb-2">
                 <p class="font-bold">

templates/result.html

@@ -81,7 +81,7 @@
                                 <td>{{ info[6] }}</td>
                                 <td>{{ info[5] }}</td>
                                 <td>{{ info[7] }}</td>
-                                <td>{{ info[1]|truncate(16, False, '', 0) }}</td>
+                                <td>{{ info[1]|truncate(32, False, '', 0) }}</td>
                             </tr>
                         </thead>
                         {% endfor %}