diff --git a/main.py b/main.py
index 6329dd8..30d2a69 100644
--- a/main.py
+++ b/main.py
@@ -1,11 +1,15 @@
-import os
-from dataclasses import dataclass
-import sqlite3
-from telegram import Update
-from telegram.ext import Updater, CommandHandler, CallbackContext
 import logging
+import os
+import sqlite3
+from dataclasses import dataclass
+from datetime import datetime
 
 from dotenv import load_dotenv
+from telegram import Update
+from telegram.ext import CallbackContext, CommandHandler, Updater
+
+from models import Link
+
 load_dotenv()
 
 logging.basicConfig(level=logging.DEBUG,
@@ -46,15 +50,23 @@ class Bot:
                     link TEXT,
                     user_id TEXT,
                     read_at DATETIME,
-                    added_at DATETIME,
-                    postponed_at DATETIME
-                )
+                    added_at DATETIME
+                );
             """)
 
     def cmd_start(self, update: Update, context: CallbackContext):
         context.bot.send_message(chat_id=update.effective_chat.id, text='Hi!')
+        # TODO: timezones
         # TODO: ask to set time or something
 
+    def cmd_test(self, update: Update, context: CallbackContext):
+        l = Link(
+            link="2137",
+            user_id="papiez"
+        )
+        with self.db as db:
+            l.create(db)
+
     def run(self):
         self.updater.start_polling()
 
diff --git a/models.py b/models.py
new file mode 100644
index 0000000..df83d9a
--- /dev/null
+++ b/models.py
@@ -0,0 +1,25 @@
+import sqlite3
+from dataclasses import dataclass
+from datetime import datetime
+
+
+@dataclass
+class Link:
+    link: str
+    user_id: str
+    id: int = None
+    read_at: datetime = None
+    added_at: datetime = None
+
+    def create(self, db: sqlite3.Connection):
+        self.added_at = datetime.now()
+        cur = db.cursor()
+        rows = (cur.execute(
+            "INSERT INTO links(link, user_id, added_at) VALUES(?, ?, ?) RETURNING id;",
+            (self.link, self.user_id, self.added_at)
+        ))
+        r = list(rows)
+        assert len(r) == 1
+        assert len(r[0]) == 1
+        assert int(r[0][0])
+        self.id = r[0][0]