8000 QueryList: Better object handling by tony · Pull Request #415 · vcs-python/libvcs · GitHub
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QueryList: Better object handling #415

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Merged
merged 7 commits into from
Sep 18, 2022
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QueryList: Better object handling #415

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1c873a5
QueryList: Better object handling
tony Sep 17, 2022
fe98727
tests(QueryList): Lookup by objects
tony Sep 18, 2022
4acf23a
tests/docs(query_list): Document object lookups
tony Sep 18, 2022
d73d110
docs(query_list): Clean up keygetter
tony Sep 18, 2022
133d4eb
docs(query_list): More detailed docs for keygetter
tony Sep 18, 2022
1ce6f15
docs(query_list): Clean up parse_lookup
tony Sep 18, 2022
d98c54f
docs(CHANGES): QueryList fixes
tony Sep 18, 2022
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docs(query_list): More detailed docs for keygetter
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@tony
tony committed Sep 18, 2022
commit 133d4eb6b6769f7978be72e6217d63b1e3a4989e
49 changes: 46 additions & 3 deletions src/libvcs/_internal/query_list.py
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Expand Up @@ -19,10 +19,53 @@ def keygetter(
) -> Union[None, Any, str, list[str], Mapping[str, str]]:
"""Fetch values in objects and keys, deeply.

>>> keygetter({ "foods": { "breakfast": "cereal" } }, "foods__breakfast")
'cereal'
>>> keygetter({ "foods": { "breakfast": "cereal" } }, "foods")
**With dictionaries**:

>>> keygetter({ "menu": { "breakfast": "cereal" } }, "menu")
{'breakfast': 'cereal'}

>>> keygetter({ "menu": { "breakfast": "cereal" } }, "menu__breakfast")
'cereal'

**With objects**:

>>> from typing import Optional
>>> from dataclasses import dataclass, field

>>> @dataclass()
... class Menu:
... fruit: list[str] = field(default_factory=list)
... breakfast: Optional[str] = None


>>> @dataclass()
... class Restaurant:
... place: str
... city: str
... state: str
... menu: Menu = field(default_factory=Menu)


>>> restaurant = Restaurant(
... place="Largo",
... city="Tampa",
... state="Florida",
... menu=Menu(
... fruit=["banana", "orange"], breakfast="cereal"
... )
... )

>>> restaurant
Restaurant(place='Largo',
city='Tampa',
state= 577E 'Florida',
menu=Menu(fruit=['banana', 'orange'], breakfast='cereal'))

>>> keygetter(restaurant, "menu")
Menu(fruit=['banana', 'orange'], breakfast='cereal')

>>> keygetter(restaurant, "menu__breakfast")
'cereal'
"""
try:
sub_fields = path.split("__")
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