1 """Collecting Day and date-related items."""
2 from datetime import datetime
3 from sqlite3 import Row
4 from plomtask.misc import HandledException
5 from plomtask.db import DatabaseConnection
7 DATE_FORMAT = '%Y-%m-%d'
10 def date_valid(date: str):
11 """Validate date against DATE_FORMAT, return Datetime or None."""
13 result = datetime.strptime(date, DATE_FORMAT)
14 except (ValueError, TypeError):
20 """Individual days defined by their dates."""
22 def __init__(self, date: str):
24 self.datetime = date_valid(self.date)
26 raise HandledException(f'Given date of wrong format: {self.date}')
29 def add(cls, db_conn: DatabaseConnection, date: str):
30 """Add (or re-write) new Day(date) to database."""
31 db_conn.exec('REPLACE INTO days VALUES (?)', (date,))
34 def from_table_row(cls, row: Row):
35 """Make new Day from database row."""
39 def all(cls, db_conn: DatabaseConnection):
40 """Return list of all Days in database."""
42 for row in db_conn.exec('SELECT * FROM days'):
43 days += [cls.from_table_row(row)]
48 """Return what weekday matches self.date."""
49 return self.datetime.strftime('%A')
51 def __eq__(self, other: object):
52 return isinstance(other, self.__class__) and self.date == other.date
54 def __lt__(self, other):
55 return self.date < other.date