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feat: Phase 1 Group 2 — add account_id to AI branching tables

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Tables: session_branches, session_handoffs, fork_points,
        ai_session_steps, ai_suggestions
Backfill: session_id → ai_sessions.account_id (all except
ai_suggestions which uses user_id → users.account_id)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
chihlasm
2026-04-09 05:12:18 +00:00
parent 4666c4f6d2
commit 2779a41b94
7 changed files with 169 additions and 0 deletions
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7
backend/app/models/ai_session_step.py
View File

@@ -50,6 +50,13 @@ class AISessionStep(Base):
nullable=False,
index=True,
)
account_id: Mapped[uuid.UUID] = mapped_column(
UUID(as_uuid=True),
ForeignKey("accounts.id", ondelete="CASCADE"),
nullable=False,
index=True,
comment="Denormalized from ai_sessions.account_id for direct tenant filtering.",
)
step_order: Mapped[int] = mapped_column(
Integer, nullable=False,
comment="Sequential position in the session (0-indexed)",

6
backend/app/models/ai_suggestion.py
View File

@@ -28,6 +28,12 @@ class AISuggestion(Base):
nullable=False,
index=True,
)
account_id: Mapped[uuid.UUID] = mapped_column(
UUID(as_uuid=True),
ForeignKey("accounts.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
session_id: Mapped[Optional[uuid.UUID]] = mapped_column(
UUID(as_uuid=True),
ForeignKey("ai_chat_sessions.id", ondelete="SET NULL"),

6
backend/app/models/fork_point.py
View File

@@ -23,6 +23,12 @@ class ForkPoint(Base):
id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
session_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("ai_sessions.id", ondelete="CASCADE"), nullable=False, index=True)
account_id: Mapped[uuid.UUID] = mapped_column(
UUID(as_uuid=True),
ForeignKey("accounts.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
parent_branch_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("session_branches.id", ondelete="CASCADE"), nullable=False)
trigger_step_id: Mapped[Optional[uuid.UUID]] = mapped_column(UUID(as_uuid=True), ForeignKey("ai_session_steps.id", ondelete="SET NULL"), nullable=True)
fork_reason: Mapped[str] = mapped_column(Text, nullable=False)

6
backend/app/models/session_branch.py
View File

@@ -35,6 +35,12 @@ class SessionBranch(Base):
id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
session_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("ai_sessions.id", ondelete="CASCADE"), nullable=False)
account_id: Mapped[uuid.UUID] = mapped_column(
UUID(as_uuid=True),
ForeignKey("accounts.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
parent_branch_id: Mapped[Optional[uuid.UUID]] = mapped_column(UUID(as_uuid=True), ForeignKey("session_branches.id", ondelete="CASCADE"), nullable=True)
fork_point_step_id: Mapped[Optional[uuid.UUID]] = mapped_column(UUID(as_uuid=True), ForeignKey("ai_session_steps.id", ondelete="SET NULL"), nullable=True)
branch_order: Mapped[int] = mapped_column(Integer, nullable=False, default=1)

6
backend/app/models/session_handoff.py
View File

@@ -27,6 +27,12 @@ class SessionHandoff(Base):
id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
session_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("ai_sessions.id", ondelete="CASCADE"), nullable=False, index=True)
account_id: Mapped[uuid.UUID] = mapped_column(
UUID(as_uuid=True),
ForeignKey("accounts.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
handed_off_by: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"), nullable=False)
intent: Mapped[str] = mapped_column(String(20), nullable=False)
source_branch_id: Mapped[Optional[uuid.UUID]] = mapped_column(UUID(as_uuid=True), ForeignKey("session_branches.id", ondelete="SET NULL"), nullable=True)