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73 lines
2.5 KiB
Python
73 lines
2.5 KiB
Python
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"""Add the task_cell_projects table — ad-hoc per-cell project map for a task.
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A MegaTask root-subtask that spans multiple cells (and may mix per-cell projects
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from different products / OSS libs) needs a per-cell routing map without standing
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up a Product for it. ``task_cell_projects`` mirrors ``product_projects`` but is
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owned by the task: one Project per cell per task (``UNIQUE (task_id, team)``). The
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root-subtask then cuts ``feature/main_pm/{root}`` per repo and opens a root->master
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PR per repo exactly like a Product fan-out root — only the map's source differs.
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``team`` reuses the existing Postgres "team" enum (create_type=False).
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Revision ID: 052_task_cell_projects
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Revises: 051_respawn_tracker
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Create Date: 2026-06-26
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"""
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from __future__ import annotations
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import sqlalchemy as sa
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from alembic import op
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from sqlalchemy.dialects import postgresql
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revision = "052_task_cell_projects"
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down_revision = "051_respawn_tracker"
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branch_labels = None
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depends_on = None
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# Reuse the existing Postgres "team" enum in place (created in 001_initial_schema,
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# widened since by later migrations). ``create_type=False`` MUST be set on the
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# postgres-native ``postgresql.ENUM``: it's that class's ``create_type`` attribute
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# that ``_check_for_name_in_memos`` reads to suppress the redundant ``CREATE TYPE``
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# on ``op.create_table`` (checkfirst=False, so the has_type probe is skipped). On
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# the generic ``sa.Enum`` the kwarg is silently dropped, so the CREATE TYPE fires
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# and crashes a real orchestrator boot ("type 'team' already exists").
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_TEAM_ENUM = postgresql.ENUM(
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"backend",
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"frontend",
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"ux_ui",
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"board",
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"main_pm",
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"fullstack",
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"marketing",
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"system",
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name="team",
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create_type=False,
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)
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def upgrade() -> None:
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op.create_table(
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"task_cell_projects",
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sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
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sa.Column(
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"task_id",
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postgresql.UUID(as_uuid=True),
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sa.ForeignKey("tasks.id", ondelete="CASCADE"),
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nullable=False,
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index=True,
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),
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sa.Column("team", _TEAM_ENUM, nullable=False),
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sa.Column(
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"project_id",
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postgresql.UUID(as_uuid=True),
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sa.ForeignKey("projects.id", ondelete="RESTRICT"),
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nullable=False,
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index=True,
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),
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sa.UniqueConstraint("task_id", "team", name="uq_task_cell_projects_task_team"),
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)
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def downgrade() -> None:
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op.drop_table("task_cell_projects")
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