Replace Flask-SQLAlchemy helpers (db.relationship, db.ForeignKey, etc.) with plain SQLAlchemy equivalents

This commit is contained in:
2026-04-06 01:16:10 +08:00
parent 970c2e9946
commit e6d25882fc
3 changed files with 62 additions and 64 deletions
+1 -1
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@@ -37,7 +37,7 @@ def init_accounts_command(username: str) -> None:
creator_pk: int = get_user_pk(username)
bases: list[BaseAccount] = db.session.scalars(
sa.select(BaseAccount).where(db.func.length(BaseAccount.code) == 4)
sa.select(BaseAccount).where(sa.func.length(BaseAccount.code) == 4)
.order_by(BaseAccount.code)).unique().all()
if len(bases) == 0:
raise click.Abort
+60 -61
View File
@@ -27,8 +27,7 @@ from typing import Self
import sqlalchemy as sa
from babel import Locale
from flask_babel import get_locale, get_babel
from sqlalchemy import text
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.orm import Mapped, mapped_column, relationship
from . import db
from .locale import gettext
@@ -44,9 +43,9 @@ class BaseAccount(db.Model):
title_l10n: Mapped[str] = mapped_column("title")
"""The title."""
l10n: Mapped[list[BaseAccountL10n]] \
= db.relationship(back_populates="account", lazy=False)
= relationship(back_populates="account", lazy=False)
"""The localized titles."""
accounts: Mapped[list[Account]] = db.relationship(back_populates="base")
accounts: Mapped[list[Account]] = relationship(back_populates="base")
"""The descendant accounts under the base account."""
def __str__(self) -> str:
@@ -84,11 +83,11 @@ class BaseAccountL10n(db.Model):
__tablename__ = "accounting_base_accounts_l10n"
"""The table name."""
account_code: Mapped[str] \
= mapped_column(db.ForeignKey(BaseAccount.code, onupdate="CASCADE",
= mapped_column(sa.ForeignKey(BaseAccount.code, onupdate="CASCADE",
ondelete="CASCADE"),
primary_key=True)
"""The account code."""
account: Mapped[BaseAccount] = db.relationship(back_populates="l10n")
account: Mapped[BaseAccount] = relationship(back_populates="l10n")
"""The account."""
locale: Mapped[str] = mapped_column(primary_key=True)
"""The locale."""
@@ -103,40 +102,40 @@ class Account(db.Model):
id: Mapped[int] = mapped_column(primary_key=True, autoincrement=False)
"""The account ID."""
base_code: Mapped[str] \
= mapped_column(db.ForeignKey(BaseAccount.code, onupdate="CASCADE",
= mapped_column(sa.ForeignKey(BaseAccount.code, onupdate="CASCADE",
ondelete="CASCADE"))
"""The code of the base account."""
base: Mapped[BaseAccount] = db.relationship(back_populates="accounts")
base: Mapped[BaseAccount] = relationship(back_populates="accounts")
"""The base account."""
no: Mapped[int] = mapped_column(default=text("1"))
no: Mapped[int] = mapped_column(default=sa.text("1"))
"""The account number under the base account."""
title_l10n: Mapped[str] = mapped_column("title")
"""The title."""
is_need_offset: Mapped[bool] = mapped_column(default=False)
"""Whether the journal entry line items of this account need offset."""
created_at: Mapped[dt.datetime] \
= mapped_column(db.DateTime(timezone=True),
server_default=db.func.now())
= mapped_column(sa.DateTime(timezone=True),
server_default=sa.func.now())
"""The date and time when this record was created."""
created_by_id: Mapped[int] \
= mapped_column(db.ForeignKey(user_pk_column, onupdate="CASCADE"))
= mapped_column(sa.ForeignKey(user_pk_column, onupdate="CASCADE"))
"""The ID of the user who created the record."""
created_by: Mapped[user_cls] = db.relationship(foreign_keys=created_by_id)
created_by: Mapped[user_cls] = relationship(foreign_keys=created_by_id)
"""The user who created the record."""
updated_at: Mapped[dt.datetime] \
= mapped_column(db.DateTime(timezone=True),
server_default=db.func.now())
= mapped_column(sa.DateTime(timezone=True),
server_default=sa.func.now())
"""The date and time when this record was last updated."""
updated_by_id: Mapped[int] \
= mapped_column(db.ForeignKey(user_pk_column, onupdate="CASCADE"))
= mapped_column(sa.ForeignKey(user_pk_column, onupdate="CASCADE"))
"""The ID of the last user who updated the record."""
updated_by: Mapped[user_cls] = db.relationship(foreign_keys=updated_by_id)
updated_by: Mapped[user_cls] = relationship(foreign_keys=updated_by_id)
"""The last user who updated the record."""
l10n: Mapped[list[AccountL10n]] \
= db.relationship(back_populates="account", lazy=False)
= relationship(back_populates="account", lazy=False)
"""The localized titles."""
line_items: Mapped[list[JournalEntryLineItem]] \
= db.relationship(back_populates="account")
= relationship(back_populates="account")
"""The journal entry line items."""
CASH_CODE: str = "1111-001"
@@ -360,11 +359,11 @@ class AccountL10n(db.Model):
__tablename__ = "accounting_accounts_l10n"
"""The table name."""
account_id: Mapped[int] \
= mapped_column(db.ForeignKey(Account.id, onupdate="CASCADE",
= mapped_column(sa.ForeignKey(Account.id, onupdate="CASCADE",
ondelete="CASCADE"),
primary_key=True)
"""The account ID."""
account: Mapped[Account] = db.relationship(back_populates="l10n")
account: Mapped[Account] = relationship(back_populates="l10n")
"""The account."""
locale: Mapped[str] = mapped_column(primary_key=True)
"""The locale."""
@@ -381,29 +380,29 @@ class Currency(db.Model):
name_l10n: Mapped[str] = mapped_column("name")
"""The currency name."""
created_at: Mapped[dt.datetime] \
= mapped_column(db.DateTime(timezone=True),
server_default=db.func.now())
= mapped_column(sa.DateTime(timezone=True),
server_default=sa.func.now())
"""The date and time when this record was created."""
created_by_id: Mapped[int] \
= mapped_column(db.ForeignKey(user_pk_column, onupdate="CASCADE"))
= mapped_column(sa.ForeignKey(user_pk_column, onupdate="CASCADE"))
"""The ID of the user who created the record."""
created_by: Mapped[user_cls] = db.relationship(foreign_keys=created_by_id)
created_by: Mapped[user_cls] = relationship(foreign_keys=created_by_id)
"""The user who created the record."""
updated_at: Mapped[dt.datetime] \
= mapped_column(db.DateTime(timezone=True),
server_default=db.func.now())
= mapped_column(sa.DateTime(timezone=True),
server_default=sa.func.now())
"""The date and time when this record was last updated."""
updated_by_id: Mapped[int] \
= mapped_column(db.ForeignKey(user_pk_column, onupdate="CASCADE"))
= mapped_column(sa.ForeignKey(user_pk_column, onupdate="CASCADE"))
"""The ID of the last user who updated the record."""
updated_by: Mapped[user_cls] \
= db.relationship(foreign_keys=updated_by_id)
= relationship(foreign_keys=updated_by_id)
"""The last user who updated the record."""
l10n: Mapped[list[CurrencyL10n]] \
= db.relationship(back_populates="currency", lazy=False)
= relationship(back_populates="currency", lazy=False)
"""The localized names."""
line_items: Mapped[list[JournalEntryLineItem]] \
= db.relationship(back_populates="currency")
= relationship(back_populates="currency")
"""The journal entry line items."""
def __str__(self) -> str:
@@ -489,11 +488,11 @@ class CurrencyL10n(db.Model):
__tablename__ = "accounting_currencies_l10n"
"""The table name."""
currency_code: Mapped[str] \
= mapped_column(db.ForeignKey(Currency.code, onupdate="CASCADE",
= mapped_column(sa.ForeignKey(Currency.code, onupdate="CASCADE",
ondelete="CASCADE"),
primary_key=True)
"""The currency code."""
currency: Mapped[Currency] = db.relationship(back_populates="l10n")
currency: Mapped[Currency] = relationship(back_populates="l10n")
"""The currency."""
locale: Mapped[str] = mapped_column(primary_key=True)
"""The locale."""
@@ -552,30 +551,30 @@ class JournalEntry(db.Model):
"""The journal entry ID."""
date: Mapped[dt.date]
"""The date."""
no: Mapped[int] = mapped_column(default=text("1"))
no: Mapped[int] = mapped_column(default=sa.text("1"))
"""The journal entry number under the date."""
note: Mapped[str | None]
"""The note."""
created_at: Mapped[dt.datetime] \
= mapped_column(db.DateTime(timezone=True),
server_default=db.func.now())
= mapped_column(sa.DateTime(timezone=True),
server_default=sa.func.now())
"""The date and time when this record was created."""
created_by_id: Mapped[int] \
= mapped_column(db.ForeignKey(user_pk_column, onupdate="CASCADE"))
= mapped_column(sa.ForeignKey(user_pk_column, onupdate="CASCADE"))
"""The ID of the user who created the record."""
created_by: Mapped[user_cls] = db.relationship(foreign_keys=created_by_id)
created_by: Mapped[user_cls] = relationship(foreign_keys=created_by_id)
"""The user who created the record."""
updated_at: Mapped[dt.datetime] \
= mapped_column(db.DateTime(timezone=True),
server_default=db.func.now())
= mapped_column(sa.DateTime(timezone=True),
server_default=sa.func.now())
"""The date and time when this record was last updated."""
updated_by_id: Mapped[int] \
= mapped_column(db.ForeignKey(user_pk_column, onupdate="CASCADE"))
= mapped_column(sa.ForeignKey(user_pk_column, onupdate="CASCADE"))
"""The ID of the last user who updated the record."""
updated_by: Mapped[user_cls] = db.relationship(foreign_keys=updated_by_id)
updated_by: Mapped[user_cls] = relationship(foreign_keys=updated_by_id)
"""The last user who updated the record."""
line_items: Mapped[list[JournalEntryLineItem]] \
= db.relationship(back_populates="journal_entry")
= relationship(back_populates="journal_entry")
"""The line items."""
def __str__(self) -> str:
@@ -669,36 +668,36 @@ class JournalEntryLineItem(db.Model):
id: Mapped[int] = mapped_column(primary_key=True, autoincrement=False)
"""The line item ID."""
journal_entry_id: Mapped[int] \
= mapped_column(db.ForeignKey(JournalEntry.id, onupdate="CASCADE",
= mapped_column(sa.ForeignKey(JournalEntry.id, onupdate="CASCADE",
ondelete="CASCADE"))
"""The journal entry ID."""
journal_entry: Mapped[JournalEntry] \
= db.relationship(back_populates="line_items")
= relationship(back_populates="line_items")
"""The journal entry."""
is_debit: Mapped[bool]
"""True for a debit line item, or False for a credit line item."""
no: Mapped[int]
"""The line item number under the journal entry and debit or credit."""
original_line_item_id: Mapped[int | None] \
= mapped_column(db.ForeignKey(id, onupdate="CASCADE"))
= mapped_column(sa.ForeignKey(id, onupdate="CASCADE"))
"""The ID of the original line item."""
original_line_item: Mapped[JournalEntryLineItem | None] \
= db.relationship(remote_side=id, passive_deletes=True)
= relationship(remote_side=id, passive_deletes=True)
"""The original line item."""
currency_code: Mapped[str] \
= mapped_column(db.ForeignKey(Currency.code, onupdate="CASCADE"))
= mapped_column(sa.ForeignKey(Currency.code, onupdate="CASCADE"))
"""The currency code."""
currency: Mapped[Currency] = db.relationship(back_populates="line_items")
currency: Mapped[Currency] = relationship(back_populates="line_items")
"""The currency."""
account_id: Mapped[int] \
= mapped_column(db.ForeignKey(Account.id, onupdate="CASCADE"))
= mapped_column(sa.ForeignKey(Account.id, onupdate="CASCADE"))
"""The account ID."""
account: Mapped[Account] \
= db.relationship(back_populates="line_items", lazy=False)
= relationship(back_populates="line_items", lazy=False)
"""The account."""
description: Mapped[str | None]
"""The description."""
amount: Mapped[Decimal] = mapped_column(db.Numeric(14, 2))
amount: Mapped[Decimal] = mapped_column(sa.Numeric(14, 2))
"""The amount."""
def __str__(self) -> str:
@@ -895,23 +894,23 @@ class Option(db.Model):
"""The table name."""
name: Mapped[str] = mapped_column(primary_key=True)
"""The name."""
value: Mapped[str] = mapped_column(db.Text)
value: Mapped[str] = mapped_column(sa.Text)
"""The option value."""
created_at: Mapped[dt.datetime] \
= mapped_column(db.DateTime(timezone=True),
server_default=db.func.now())
= mapped_column(sa.DateTime(timezone=True),
server_default=sa.func.now())
"""The date and time when this record was created."""
created_by_id: Mapped[int] \
= mapped_column(db.ForeignKey(user_pk_column, onupdate="CASCADE"))
= mapped_column(sa.ForeignKey(user_pk_column, onupdate="CASCADE"))
"""The ID of the user who created the record."""
created_by: Mapped[user_cls] = db.relationship(foreign_keys=created_by_id)
created_by: Mapped[user_cls] = relationship(foreign_keys=created_by_id)
"""The user who created the record."""
updated_at: Mapped[dt.datetime] \
= mapped_column(db.DateTime(timezone=True),
server_default=db.func.now())
= mapped_column(sa.DateTime(timezone=True),
server_default=sa.func.now())
"""The date and time when this record was last updated."""
updated_by_id: Mapped[int] \
= mapped_column(db.ForeignKey(user_pk_column, onupdate="CASCADE"))
= mapped_column(sa.ForeignKey(user_pk_column, onupdate="CASCADE"))
"""The ID of the last user who updated the record."""
updated_by: Mapped[user_cls] = db.relationship(foreign_keys=updated_by_id)
updated_by: Mapped[user_cls] = relationship(foreign_keys=updated_by_id)
"""The last user who updated the record."""
+1 -2
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@@ -28,7 +28,6 @@ from flask.testing import FlaskCliRunner
from flask_babel_js import BabelJS
from flask_sqlalchemy import SQLAlchemy
from flask_wtf import CSRFProtect
from sqlalchemy import Column
bp: Blueprint = Blueprint("home", __name__)
"""The global blueprint."""
@@ -105,7 +104,7 @@ def create_app(is_testing: bool = False, is_skip_accounts: bool = False,
return auth.User
@property
def pk_column(self) -> Column:
def pk_column(self) -> sa.Column:
return auth.User.id
@property