+ def save(self, db_conn: DatabaseConnection):
+ """Add (or re-write) self to database."""
+ db_conn.exec('REPLACE INTO days VALUES (?)', (self.date,))
+
+ @classmethod
+ def from_table_row(cls, row: Row):
+ """Make new Day from database row."""
+ return cls(row[0])
+
+ @classmethod
+ def all(cls, db_conn: DatabaseConnection,
+ date_range: tuple[str, str] = ('', '')):
+ """Return list of Days in database within date_range."""
+ start_date = date_range[0] if date_range[0] else '2024-01-01'
+ end_date = date_range[1] if date_range[1] else '2030-12-31'
+ days = []
+ sql = 'SELECT * FROM days WHERE date >= ? AND date <= ?'
+ for row in db_conn.exec(sql, (start_date, end_date)):
+ days += [cls.from_table_row(row)]
+ days.sort()
+ return days
+
+ @classmethod
+ def by_date(cls, db_conn: DatabaseConnection, date: str):
+ """Retrieve Day by date if in DB, else return None."""
+ for row in db_conn.exec('SELECT * FROM days WHERE date = ?', (date,)):
+ return cls.from_table_row(row)
+ return None
+