Add migration for Pen

alembic/versions/20250326_222023_82396d31_create_pen.py

@@ -0,0 +1,45 @@
+"""create pens table
+
+Revision ID: b2c3d4e5f6g7
+Revises: 
+Create Date: 2023-12-20 10:00:00.000000
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.sql import func
+import uuid
+
+# revision identifiers
+revision = 'b2c3d4e5f6g7'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+def upgrade():
+    op.create_table(
+        'pens',
+        sa.Column('id', sa.String(), primary_key=True, default=lambda: str(uuid.uuid4())),
+        sa.Column('name', sa.String(), nullable=False),
+        sa.Column('brand', sa.String(), nullable=False),
+        sa.Column('color', sa.String(), nullable=False),
+        sa.Column('price', sa.Integer(), nullable=False),
+        sa.Column('in_stock', sa.Boolean(), default=True),
+        sa.Column('description', sa.String()),
+        sa.Column('created_at', sa.DateTime(), server_default=sa.func.now()),
+        sa.Column('updated_at', sa.DateTime(), server_default=sa.func.now(), onupdate=sa.func.now()),
+        sa.PrimaryKeyConstraint('id')
+    )
+    
+    # Create indexes
+    op.create_index('ix_pens_name', 'pens', ['name'])
+    op.create_index('ix_pens_brand', 'pens', ['brand'])
+    op.create_index('ix_pens_color', 'pens', ['color'])
+
+def downgrade():
+    # Drop indexes
+    op.drop_index('ix_pens_color', 'pens')
+    op.drop_index('ix_pens_brand', 'pens')
+    op.drop_index('ix_pens_name', 'pens')
+    
+    # Drop table
+    op.drop_table('pens')