Agent Zero
127 lines
8.0 KiB
Python
127 lines
8.0 KiB
Python
"""T09: ai_conversations, ai_messages, workflows, workflow_instances, workflow_step_history tables.
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Revision ID: 0004_ai_workflows
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Revises: 0003_plugin_system
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Create Date: 2026-06-29
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"""
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from __future__ import annotations
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects import postgresql
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revision: str = "0004_ai_workflows"
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down_revision: Union[str, None] = "0003_plugin_system"
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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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# --- ai_conversations table (tenant-scoped) ---
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op.create_table(
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"ai_conversations",
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sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
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sa.Column("tenant_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("tenants.id", ondelete="CASCADE"), nullable=False),
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sa.Column("user_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("users.id", ondelete="CASCADE"), nullable=False),
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sa.Column("title", sa.String(255), nullable=False, server_default="Untitled"),
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sa.Column("context", postgresql.JSONB, nullable=False, server_default=sa.text("'{}'::jsonb")),
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sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
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sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
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)
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op.execute('CREATE INDEX IF NOT EXISTS ix_ai_conversations_tenant_id ON ai_conversations (tenant_id)')
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op.execute('CREATE INDEX IF NOT EXISTS ix_ai_conversations_tenant_user ON ai_conversations (tenant_id, user_id)')
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# --- ai_messages table (tenant-scoped) ---
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op.create_table(
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"ai_messages",
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sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
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sa.Column("tenant_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("tenants.id", ondelete="CASCADE"), nullable=False),
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sa.Column("conversation_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("ai_conversations.id", ondelete="CASCADE"), nullable=False),
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sa.Column("role", sa.String(20), nullable=False),
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sa.Column("content", sa.Text, nullable=False),
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sa.Column("proposed_actions", postgresql.JSONB, nullable=True),
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sa.Column("executed_action", postgresql.JSONB, nullable=True),
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sa.Column("execution_result", postgresql.JSONB, nullable=True),
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sa.Column("message_index", sa.Integer, nullable=False, server_default="0"),
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sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
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sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
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)
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op.execute('CREATE INDEX IF NOT EXISTS ix_ai_messages_tenant_id ON ai_messages (tenant_id)')
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op.execute('CREATE INDEX IF NOT EXISTS ix_ai_messages_tenant_conversation ON ai_messages (tenant_id, conversation_id)')
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op.execute('CREATE INDEX IF NOT EXISTS ix_ai_messages_conversation_id ON ai_messages (conversation_id)')
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# --- workflows table (tenant-scoped) ---
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op.create_table(
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"workflows",
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sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
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sa.Column("tenant_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("tenants.id", ondelete="CASCADE"), nullable=False),
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sa.Column("name", sa.String(200), nullable=False),
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sa.Column("description", sa.Text, nullable=True),
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sa.Column("trigger_event", sa.String(100), nullable=True),
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sa.Column("steps", postgresql.JSONB, nullable=False),
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sa.Column("is_active", sa.Boolean, nullable=False, server_default=sa.text("true")),
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sa.Column("created_by", postgresql.UUID(as_uuid=True), sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
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sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
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sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
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)
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op.execute('CREATE INDEX IF NOT EXISTS ix_workflows_tenant_id ON workflows (tenant_id)')
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op.execute('CREATE INDEX IF NOT EXISTS ix_workflows_tenant_active ON workflows (tenant_id, is_active)')
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op.execute('CREATE INDEX IF NOT EXISTS ix_workflows_tenant_trigger ON workflows (tenant_id, trigger_event)')
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# --- workflow_instances table (tenant-scoped) ---
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op.create_table(
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"workflow_instances",
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sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
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sa.Column("tenant_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("tenants.id", ondelete="CASCADE"), nullable=False),
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sa.Column("workflow_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("workflows.id", ondelete="CASCADE"), nullable=False),
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sa.Column("status", sa.String(30), nullable=False, server_default="pending"),
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sa.Column("current_step_index", sa.Integer, nullable=False, server_default="0"),
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sa.Column("context", postgresql.JSONB, nullable=False, server_default=sa.text("'{}'::jsonb")),
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sa.Column("initiated_by", postgresql.UUID(as_uuid=True), sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
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sa.Column("completed_at", sa.DateTime(timezone=True), nullable=True),
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sa.Column("timeout_hours", sa.Integer, nullable=True),
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sa.Column("timeout_at", sa.DateTime(timezone=True), nullable=True),
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sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
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sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
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)
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op.execute('CREATE INDEX IF NOT EXISTS ix_wf_instances_tenant_id ON workflow_instances (tenant_id)')
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op.execute('CREATE INDEX IF NOT EXISTS ix_wf_instances_tenant_status ON workflow_instances (tenant_id, status)')
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op.execute('CREATE INDEX IF NOT EXISTS ix_wf_instances_tenant_workflow ON workflow_instances (tenant_id, workflow_id)')
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op.execute('CREATE INDEX IF NOT EXISTS ix_wf_instances_workflow_id ON workflow_instances (workflow_id)')
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# --- workflow_step_history table (tenant-scoped) ---
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op.create_table(
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"workflow_step_history",
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sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
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sa.Column("tenant_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("tenants.id", ondelete="CASCADE"), nullable=False),
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sa.Column("instance_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("workflow_instances.id", ondelete="CASCADE"), nullable=False),
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sa.Column("step_index", sa.Integer, nullable=False),
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sa.Column("step_type", sa.String(50), nullable=False),
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sa.Column("action", sa.String(50), nullable=False),
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sa.Column("actor_id", postgresql.UUID(as_uuid=True), sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
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sa.Column("details", postgresql.JSONB, nullable=True),
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sa.Column("created_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
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sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
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)
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op.execute('CREATE INDEX IF NOT EXISTS ix_wf_step_history_tenant_id ON workflow_step_history (tenant_id)')
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op.execute('CREATE INDEX IF NOT EXISTS ix_wf_step_history_tenant_instance ON workflow_step_history (tenant_id, instance_id)')
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op.execute('CREATE INDEX IF NOT EXISTS ix_wf_step_history_instance_id ON workflow_step_history (instance_id)')
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# --- RLS Policies ---
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for table in ["ai_conversations", "ai_messages", "workflows", "workflow_instances", "workflow_step_history"]:
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op.execute(f"ALTER TABLE {table} ENABLE ROW LEVEL SECURITY;")
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op.execute(
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f"CREATE POLICY {table}_tenant_isolation ON {table} "
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f"USING (tenant_id::text = current_setting('app.current_tenant_id', true));"
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)
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def downgrade() -> None:
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for table in ["workflow_step_history", "workflow_instances", "workflows", "ai_messages", "ai_conversations"]:
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op.execute(f"DROP POLICY IF EXISTS {table}_tenant_isolation ON {table};")
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op.execute(f"ALTER TABLE {table} DISABLE ROW LEVEL SECURITY;")
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op.drop_table(table)
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