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119 lines
3.6 KiB
Python
119 lines
3.6 KiB
Python
"""131_add_document_revisions
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Revision ID: 131
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Revises: 130
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Create Date: 2026-04-28
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Adds two snapshot tables that back the per-action revert flow:
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* ``document_revisions``: pre-mutation snapshot of NOTE/FILE/EXTENSION docs.
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* ``folder_revisions``: pre-mutation snapshot of folder mkdir/move/delete.
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Both are written by :class:`KnowledgeBasePersistenceMiddleware` ahead of
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state-changing tool calls and consumed by ``revert_service.revert_action``.
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"""
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from __future__ import annotations
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from collections.abc import Sequence
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import sqlalchemy as sa
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from sqlalchemy.dialects import postgresql
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from alembic import op
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revision: str = "131"
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down_revision: str | None = "130"
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branch_labels: str | Sequence[str] | None = None
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depends_on: str | Sequence[str] | None = None
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def upgrade() -> None:
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op.create_table(
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"document_revisions",
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sa.Column("id", sa.Integer(), primary_key=True, index=True),
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sa.Column(
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"document_id",
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sa.Integer(),
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sa.ForeignKey("documents.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(
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"search_space_id",
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sa.Integer(),
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sa.ForeignKey("searchspaces.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("content_before", sa.Text(), nullable=True),
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sa.Column("title_before", sa.String(), nullable=True),
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sa.Column("folder_id_before", sa.Integer(), nullable=True),
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sa.Column(
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"chunks_before", postgresql.JSONB(astext_type=sa.Text()), nullable=True
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),
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sa.Column(
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"metadata_before", postgresql.JSONB(astext_type=sa.Text()), nullable=True
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),
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sa.Column(
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"created_by_turn_id", sa.String(length=64), nullable=True, index=True
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),
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sa.Column(
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"agent_action_id",
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sa.Integer(),
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sa.ForeignKey("agent_action_log.id", ondelete="SET NULL"),
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nullable=True,
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index=True,
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),
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sa.Column(
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"created_at",
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sa.TIMESTAMP(timezone=True),
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nullable=False,
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server_default=sa.text("(now() AT TIME ZONE 'utc')"),
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index=True,
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),
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)
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op.create_table(
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"folder_revisions",
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sa.Column("id", sa.Integer(), primary_key=True, index=True),
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sa.Column(
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"folder_id",
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sa.Integer(),
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sa.ForeignKey("folders.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(
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"search_space_id",
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sa.Integer(),
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sa.ForeignKey("searchspaces.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("name_before", sa.String(length=255), nullable=True),
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sa.Column("parent_id_before", sa.Integer(), nullable=True),
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sa.Column("position_before", sa.String(length=50), nullable=True),
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sa.Column(
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"created_by_turn_id", sa.String(length=64), nullable=True, index=True
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),
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sa.Column(
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"agent_action_id",
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sa.Integer(),
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sa.ForeignKey("agent_action_log.id", ondelete="SET NULL"),
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nullable=True,
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index=True,
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),
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sa.Column(
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"created_at",
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sa.TIMESTAMP(timezone=True),
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nullable=False,
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server_default=sa.text("(now() AT TIME ZONE 'utc')"),
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index=True,
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),
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)
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def downgrade() -> None:
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op.drop_table("folder_revisions")
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op.drop_table("document_revisions")
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