service-finder/archive/2026-03-29/root/manual_migration_summary.md

Schema Upgrade: Lifecycle, Transfer Requests, and Data Weights

Summary of Changes Applied via sync_engine.py

The following schema changes were successfully applied to the database:

1. Added data_status column to vehicle.assets table

• Column: data_status VARCHAR(20)
• Nullable: Yes (initially to handle existing rows)
• Default: 'draft'
• Purpose: Tracks data completeness lifecycle (draft → verified → archived)

2. Created vehicle.vehicle_transfer_requests table

• Purpose: Tracks asset transfer requests between owners/organizations
• Columns:
  • id UUID PRIMARY KEY
  • asset_id UUID REFERENCES vehicle.assets(id)
  • requester_id INTEGER REFERENCES identity.users(id)
  • current_owner_id INTEGER REFERENCES identity.persons(id) (nullable)
  • status VARCHAR(20) DEFAULT 'pending'
  • proof_document_id UUID REFERENCES system.documents(id) (nullable)
  • requested_at TIMESTAMPTZ DEFAULT now()
  • processed_at TIMESTAMPTZ (nullable)
  • notes TEXT (nullable)

3. Created system.system_data_completion_weights table

• Purpose: System-wide configuration for data completion weighting
• Columns:
  • id INTEGER PRIMARY KEY AUTOINCREMENT
  • entity_type VARCHAR(50) (e.g., "vehicle", "person", "organization")
  • field_name VARCHAR(100) (e.g., "vin", "license_plate", "email")
  • weight_percent INTEGER (0-100%)
  • is_mandatory BOOLEAN DEFAULT false
  • is_active BOOLEAN DEFAULT true
  • description TEXT (nullable)
  • created_at TIMESTAMPTZ DEFAULT now()
  • updated_at TIMESTAMPTZ DEFAULT now() ON UPDATE now()
• Unique Constraint: (entity_type, field_name)

SQL Equivalent

-- 1. Add data_status to assets
ALTER TABLE vehicle.assets 
ADD COLUMN data_status VARCHAR(20) NULL DEFAULT 'draft';

-- 2. Create vehicle_transfer_requests table
CREATE TABLE vehicle.vehicle_transfer_requests (
    id UUID PRIMARY KEY,
    asset_id UUID NOT NULL REFERENCES vehicle.assets(id),
    requester_id INTEGER NOT NULL REFERENCES identity.users(id),
    current_owner_id INTEGER REFERENCES identity.persons(id),
    status VARCHAR(20) NOT NULL DEFAULT 'pending',
    proof_document_id UUID REFERENCES system.documents(id),
    requested_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    processed_at TIMESTAMPTZ,
    notes TEXT,
    INDEX (asset_id),
    INDEX (requester_id),
    INDEX (current_owner_id)
);

-- 3. Create system_data_completion_weights table
CREATE TABLE system.system_data_completion_weights (
    id INTEGER PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY,
    entity_type VARCHAR(50) NOT NULL,
    field_name VARCHAR(100) NOT NULL,
    weight_percent INTEGER NOT NULL,
    is_mandatory BOOLEAN DEFAULT false,
    is_active BOOLEAN DEFAULT true,
    description TEXT,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    UNIQUE (entity_type, field_name)
);
CREATE INDEX ON system.system_data_completion_weights(entity_type);
CREATE INDEX ON system.system_data_completion_weights(field_name);

Model Updates

The following Python models were updated/created:

1. backend/app/models/vehicle/asset.py:

   • Added data_status: Mapped[Optional[str]] field to Asset model
   • Added VehicleTransferRequest model class

2. backend/app/models/system/system.py:

   • Added SystemDataCompletionWeight model class

Verification

The sync_engine.py script reported:

• ✅ 942 elements OK
• ✅ 3 elements fixed/created
• ⚠️ 2 extra (shadow) elements (unrelated to this migration)

All schema changes have been successfully applied to the database.