added Link.get_unread

.gitignore

@@ -1,2 +1,4 @@
 *.sqlite3
 .env
+
+*.pyc

main.py

@@ -1,3 +1,4 @@
+from pprint import pprint
 import logging
 import os
 import sqlite3
@@ -39,7 +40,7 @@ class Bot:
 
     @property
     def db(self):
-        return sqlite3.connect(self.settings.db)
+        return sqlite3.connect(self.settings.db, detect_types=sqlite3.PARSE_DECLTYPES)
 
     def _init_db(self):
         with self.db as db:
@@ -49,8 +50,8 @@ class Bot:
                     id INTEGER PRIMARY KEY AUTOINCREMENT,
                     link TEXT,
                     user_id TEXT,
-                    read_at DATETIME,
+                    read_at TIMESTAMP,
-                    added_at DATETIME
+                    added_at TIMESTAMP
                 );
             """)
 
@@ -62,11 +63,19 @@ class Bot:
     def cmd_test(self, update: Update, context: CallbackContext):
         l = Link(
             link="2137",
-            user_id="papiez"
+            user_id=update.effective_user.id
         )
         with self.db as db:
             l.create(db)
 
+    def cmd_unread(self, update: Update, context: CallbackContext):
+        # TODO: ignore messages from group
+        user_id = update.effective_user.id
+        with self.db as db:
+            links = Link.get_unread(db, user_id)
+        pprint(list(links))
+
+
     def run(self):
         self.updater.start_polling()
 

models.py

@@ -1,6 +1,8 @@
+from os import read
 import sqlite3
 from dataclasses import dataclass
 from datetime import datetime
+from typing import Tuple
 
 
 @dataclass
@@ -23,3 +25,24 @@ class Link:
         assert len(r[0]) == 1
         assert int(r[0][0])
         self.id = r[0][0]
+
+    @classmethod
+    def _from_tuple(cls, tuple) -> 'Link':
+        id, link, user_id, read_at, added_at = tuple
+        return cls(
+            id=id,
+            link=link,
+            user_id=user_id,
+            read_at=read_at,
+            added_at=added_at
+        )
+
+    @classmethod
+    def _get(cls, db: sqlite3.Connection, where: str, values: Tuple = ()) -> 'Link':
+        cur = db.cursor()
+        rows = cur.execute(f"SELECT * FROM links WHERE {where}", values)
+        return map(cls._from_tuple, rows)
+
+    @classmethod
+    def get_unread(cls, db: sqlite3.Connection, user_id: str):
+        return cls._get(db, "user_id = ? AND read_at IS NULL", (user_id,))