Add database functions

app/app_db/app_db.py

@@ -0,0 +1,17 @@
+import sqlite3
+from pathlib import Path
+import pandas as pd
+
+BASE_DIR = Path(__file__).resolve().parent
+# DB_PATH = BASE_DIR / "app_db" / "app.db"
+DB_PATH = BASE_DIR / "app.db"
+
+def get_conn():
+    # check_same_thread=False, damit Streamlit mehrere Threads nutzen kann
+    return sqlite3.connect(DB_PATH, check_same_thread=False)
+
+def get_list(sql, params=None):
+    conn = get_conn()
+    df = pd.read_sql_query(sql, conn, params=params)
+    conn.close()
+    return df