update alembic migrations

alembic/versions/004_widen_string_columns.py

@@ -0,0 +1,25 @@
+"""widen parser_id brand model columns
+
+Revision ID: 004
+Revises: 003_add_composite_indexes
+Create Date: 2026-04-15
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = "004_widen_string_columns"
+down_revision = "003_add_composite_indexes"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.alter_column("cars", "parser_id", type_=sa.String(255), existing_nullable=False)
+    op.alter_column("cars", "brand", type_=sa.String(100), existing_nullable=False)
+    op.alter_column("cars", "model", type_=sa.String(500), existing_nullable=False)
+
+
+def downgrade() -> None:
+    op.alter_column("cars", "parser_id", type_=sa.String(50), existing_nullable=False)
+    op.alter_column("cars", "brand", type_=sa.String(50), existing_nullable=False)
+    op.alter_column("cars", "model", type_=sa.String(50), existing_nullable=False)