added function to get all data

code/database.py

@@ -175,4 +175,10 @@ def get_content():
     with Data_table() as dt:
         query = f'SELECT * FROM {dt._name} ORDER BY time DESC '
         df = pd.read_sql_query(query, dt.con)
-    return df['content']
+    return df['content']
+
+def get_all():
+    with Data_table() as dt:
+        query = f'SELECT * FROM {dt._name} ORDER BY time DESC '
+        df = pd.read_sql_query(query, dt.con)
+    return df