add webpage info

alembic/versions/2025_09_03_1752-57f67bce2bec_add_webpage.py

@@ -0,0 +1,45 @@
+"""add webpage
+
+Revision ID: 57f67bce2bec
+Revises: 058739dc7aa6
+Create Date: 2025-09-03 17:52:10.644879
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '57f67bce2bec'
+down_revision: Union[str, Sequence[str], None] = '058739dc7aa6'
+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! ###
+    op.create_table('webpage',
+    sa.Column('id', sa.String(), nullable=False),
+    sa.Column('n', sa.Integer(), nullable=True),
+    sa.Column('description', sa.String(), nullable=True),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('webpage', schema=None) as batch_op:
+        batch_op.create_index(batch_op.f('ix_webpage_id'), ['id'], unique=False)
+        batch_op.create_index(batch_op.f('ix_webpage_n'), ['n'], unique=False)
+
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('webpage', schema=None) as batch_op:
+        batch_op.drop_index(batch_op.f('ix_webpage_n'))
+        batch_op.drop_index(batch_op.f('ix_webpage_id'))
+
+    op.drop_table('webpage')
+    # ### end Alembic commands ###