Add DEMO feature to the project

services/tenant/app/models/tenants.py

@@ -36,11 +36,18 @@ class Tenant(Base):
     # Status
     is_active = Column(Boolean, default=True)
     subscription_tier = Column(String(50), default="starter")
-    
+
+    # Demo account flags
+    is_demo = Column(Boolean, default=False, index=True)
+    is_demo_template = Column(Boolean, default=False, index=True)
+    base_demo_tenant_id = Column(UUID(as_uuid=True), nullable=True, index=True)
+    demo_session_id = Column(String(100), nullable=True, index=True)
+    demo_expires_at = Column(DateTime(timezone=True), nullable=True)
+
     # ML status
     ml_model_trained = Column(Boolean, default=False)
     last_training_date = Column(DateTime(timezone=True))
-    
+
     # Ownership (user_id without FK - cross-service reference)
     owner_id = Column(UUID(as_uuid=True), nullable=False, index=True)
     

services/tenant/migrations/versions/20251002_add_demo_columns.py

@@ -0,0 +1,48 @@
+"""add_demo_columns
+
+Revision ID: 2a9b3c4d5e6f
+Revises: 1e8aebb4d9ce
+Create Date: 2025-10-02 17:00:00.000000+02:00
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '2a9b3c4d5e6f'
+down_revision: Union[str, None] = '1e8aebb4d9ce'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Add demo-related columns to tenants table
+    op.add_column('tenants', sa.Column('is_demo', sa.Boolean(), nullable=False, server_default='false'))
+    op.add_column('tenants', sa.Column('is_demo_template', sa.Boolean(), nullable=False, server_default='false'))
+    op.add_column('tenants', sa.Column('base_demo_tenant_id', sa.UUID(), nullable=True))
+    op.add_column('tenants', sa.Column('demo_session_id', sa.String(length=100), nullable=True))
+    op.add_column('tenants', sa.Column('demo_expires_at', sa.DateTime(timezone=True), nullable=True))
+
+    # Create indexes for demo columns
+    op.create_index(op.f('ix_tenants_is_demo'), 'tenants', ['is_demo'], unique=False)
+    op.create_index(op.f('ix_tenants_is_demo_template'), 'tenants', ['is_demo_template'], unique=False)
+    op.create_index(op.f('ix_tenants_base_demo_tenant_id'), 'tenants', ['base_demo_tenant_id'], unique=False)
+    op.create_index(op.f('ix_tenants_demo_session_id'), 'tenants', ['demo_session_id'], unique=False)
+
+
+def downgrade() -> None:
+    # Drop indexes
+    op.drop_index(op.f('ix_tenants_demo_session_id'), table_name='tenants')
+    op.drop_index(op.f('ix_tenants_base_demo_tenant_id'), table_name='tenants')
+    op.drop_index(op.f('ix_tenants_is_demo_template'), table_name='tenants')
+    op.drop_index(op.f('ix_tenants_is_demo'), table_name='tenants')
+
+    # Drop columns
+    op.drop_column('tenants', 'demo_expires_at')
+    op.drop_column('tenants', 'demo_session_id')
+    op.drop_column('tenants', 'base_demo_tenant_id')
+    op.drop_column('tenants', 'is_demo_template')
+    op.drop_column('tenants', 'is_demo')