blob: 831861000ce8782f515ad6dd1858d1c7ba8ac9d7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
import typing
from typing import Dict
from typing import Optional
from sqlalchemy import ForeignKey
from sqlalchemy.orm import attribute_keyed_dict
from sqlalchemy.orm import DeclarativeBase
from sqlalchemy.orm import Mapped
from sqlalchemy.orm import mapped_column
from sqlalchemy.orm import relationship
class Base(DeclarativeBase):
pass
class Item(Base):
__tablename__ = "item"
id: Mapped[int] = mapped_column(primary_key=True)
notes: Mapped[Dict[str, "Note"]] = relationship(
collection_class=attribute_keyed_dict("keyword"),
cascade="all, delete-orphan",
)
class Note(Base):
__tablename__ = "note"
id: Mapped[int] = mapped_column(primary_key=True)
item_id: Mapped[int] = mapped_column(ForeignKey("item.id"))
keyword: Mapped[str]
text: Mapped[Optional[str]]
def __init__(self, keyword: str, text: str):
self.keyword = keyword
self.text = text
item = Item()
item.notes["a"] = Note("a", "atext")
if typing.TYPE_CHECKING:
# EXPECTED_TYPE: dict_items[str, Note]
reveal_type(item.notes.items())
|
