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alembic/versions/2025_11_18_1441-b33fd7a2da6c_added_birth_date_storing_revenue_as_.py

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+"""Added birth_date, storing revenue as number
+
+Revision ID: b33fd7a2da6c
+Revises: 630b0c367dcb
+Create Date: 2025-11-18 14:41:17.567595
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'b33fd7a2da6c'
+down_revision: Union[str, Sequence[str], None] = '630b0c367dcb'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+
+    # Convert VARCHAR to Double with explicit CAST for PostgreSQL compatibility
+    # PostgreSQL requires USING clause for type conversion
+    connection = op.get_bind()
+    if connection.dialect.name == 'postgresql':
+        op.execute(
+            "ALTER TABLE conversion_rooms "
+            "ALTER COLUMN total_revenue TYPE DOUBLE PRECISION "
+            "USING total_revenue::DOUBLE PRECISION"
+        )
+    else:
+        # For SQLite and other databases, use standard alter_column
+        op.alter_column('conversion_rooms', 'total_revenue',
+                   existing_type=sa.VARCHAR(),
+                   type_=sa.Double(),
+                   existing_nullable=True)
+
+    op.add_column('conversions', sa.Column('guest_birth_date', sa.Date(), nullable=True))
+    op.add_column('conversions', sa.Column('guest_id', sa.String(), nullable=True))
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('conversions', 'guest_id')
+    op.drop_column('conversions', 'guest_birth_date')
+
+    # Convert Double back to VARCHAR with explicit CAST for PostgreSQL compatibility
+    connection = op.get_bind()
+    if connection.dialect.name == 'postgresql':
+        op.execute(
+            "ALTER TABLE conversion_rooms "
+            "ALTER COLUMN total_revenue TYPE VARCHAR "
+            "USING total_revenue::VARCHAR"
+        )
+    else:
+        # For SQLite and other databases, use standard alter_column
+        op.alter_column('conversion_rooms', 'total_revenue',
+                   existing_type=sa.Double(),
+                   type_=sa.VARCHAR(),
+                   existing_nullable=True)
+    # ### end Alembic commands ###