95 lines
5.1 KiB
Python
95 lines
5.1 KiB
Python
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"""add_business_groups
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Revision ID: l1m2n3o4p5q6
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Revises: k1l2m3n4o5p6
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Create Date: 2026-09-21
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业务分组（business_groups / business_group_phases / business_group_members）
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--------------------------------------------------------------------------
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LICA 部门内部再分一层数据范围：生产大组看生产制造、维修大组看售后回流。
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组与 lifecycle_phase 直接映射，不新造业务概念 —— 这套阶段语义系统里早就有了
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（app/core/lifecycle.py），此前只用于展示与校验，没有权限含义。
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三张表的分工：
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· business_groups 组定义，parent_id 表达「大组 > 小组」。子组默认继承
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父组的可见范围，所以生产大组配一次就够。
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· business_group_phases 组的可见范围，独立成表是为了支持多选 —— 需求明确
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要求「范围可配置、不要写死」，单列存不下多个 phase。
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· business_group_members 成员，一人可属多组（这是「让某人同时看生产+维修」
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的实现方式，不需要任何特殊逻辑）。
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本迁移只建表，**不写入任何种子数据**。
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一个组都没有时，resolve_data_scope 会走到「未分组」分支，配合
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config.DATA_SCOPE_UNGROUPED 开关决定行为 —— 所以可以先部署代码、再建组，
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分批上线。初始化入口见 backend/scripts/seed_business_groups.py。
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"""
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from typing import Sequence, Union
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import sqlalchemy as sa
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from alembic import op
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revision: str = "l1m2n3o4p5q6"
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down_revision: Union[str, None] = "k1l2m3n4o5p6"
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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op.create_table(
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"business_groups",
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sa.Column("id", sa.Integer(), autoincrement=True, primary_key=True,
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comment="分组ID(数字，对外稳定不变；显示名可改而引用不变)"),
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sa.Column("parent_id", sa.Integer(),
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sa.ForeignKey("business_groups.id", ondelete="CASCADE"),
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nullable=True,
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comment="上级大组ID(为空=大组；有值=挂在某大组下的小组)"),
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sa.Column("name", sa.String(50), nullable=False, unique=True,
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comment="分组显示名(可修改)"),
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sa.Column("description", sa.String(200), nullable=True, comment="备注说明"),
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sa.Column("sort_order", sa.Integer(), nullable=False, server_default="0",
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comment="同层排序(升序)"),
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sa.Column("is_active", sa.Boolean(), nullable=False, server_default="true",
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comment="是否启用。停用后该组所有成员立即退回未分组状态"),
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sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, comment="创建时间"),
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sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, comment="最后修改时间"),
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)
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# 列表页按大组罗列子组，走 parent_id
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op.create_index("ix_business_groups_parent_id", "business_groups", ["parent_id"])
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op.create_table(
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"business_group_phases",
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sa.Column("group_id", sa.Integer(),
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sa.ForeignKey("business_groups.id", ondelete="CASCADE"),
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primary_key=True, comment="分组ID"),
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sa.Column("phase", sa.String(20), primary_key=True,
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comment="可见的生命周期阶段: PRODUCTION | AFTER_SALES"),
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)
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op.create_table(
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"business_group_members",
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sa.Column("id", sa.Integer(), autoincrement=True, primary_key=True),
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sa.Column("group_id", sa.Integer(),
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sa.ForeignKey("business_groups.id", ondelete="CASCADE"),
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nullable=False, comment="所属分组ID"),
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sa.Column("user_id", sa.String(64), nullable=False,
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comment="成员账号(逻辑外键→MOM sys_user，与 Task.assignee_id 同口径)"),
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sa.Column("is_leader", sa.Boolean(), nullable=False, server_default="false",
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comment="是否组长(可管理本组成员；数据范围与组员相同)"),
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sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, comment="加入时间"),
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sa.UniqueConstraint("group_id", "user_id",
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name="uq_business_group_members_group_user"),
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)
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# 每个请求都会按 user_id 反查「我在哪些组」—— 这是热路径，必须建索引
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op.create_index("ix_business_group_members_user_id", "business_group_members", ["user_id"])
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# 组详情页列成员、以及 CASCADE 删除，走 group_id
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op.create_index("ix_business_group_members_group_id", "business_group_members", ["group_id"])
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def downgrade() -> None:
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op.drop_index("ix_business_group_members_group_id", table_name="business_group_members")
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op.drop_index("ix_business_group_members_user_id", table_name="business_group_members")
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op.drop_table("business_group_members")
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op.drop_table("business_group_phases")
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op.drop_index("ix_business_groups_parent_id", table_name="business_groups")
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op.drop_table("business_groups")
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