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parent_children() now uses lazy='selectin'

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This commit is contained in:
Yusur 2025-08-15 12:08:03 +02:00
parent da6c767698
commit 76921a2841
1 changed files with 5 additions and 3 deletions
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8
src/suou/sqlalchemy.py
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@ -204,7 +204,7 @@ def age_pair(*, nullable: bool = False, **ka) -> tuple[Column, Column]:
return (date_col, acc_col)
def parent_children(keyword: str, /, **kwargs):
def parent_children(keyword: str, /, *, lazy: str = 'selectin', **kwargs):
"""
Self-referential one-to-many relationship pair.
Parent comes first, children come later.
@ -214,13 +214,15 @@ def parent_children(keyword: str, /, **kwargs):
Additional keyword arguments can be sourced with parent_ and child_ argument prefixes,
obviously.
CHANGED 0.5.0: the both relationship()s use lazy='selectin' attribute now by default.
"""
parent_kwargs = kwargs_prefix(kwargs, 'parent_')
child_kwargs = kwargs_prefix(kwargs, 'child_')
parent = Incomplete(relationship, Wanted(lambda o, n: o.__name__), back_populates=f'child_{keyword}s', **parent_kwargs)
child = Incomplete(relationship, Wanted(lambda o, n: o.__name__), back_populates=f'parent_{keyword}', **child_kwargs)
parent = Incomplete(relationship, Wanted(lambda o, n: o.__name__), back_populates=f'child_{keyword}s', lazy=lazy, **parent_kwargs)
child = Incomplete(relationship, Wanted(lambda o, n: o.__name__), back_populates=f'parent_{keyword}', lazy=lazy, **child_kwargs)
return parent, child