clean imports (delete imports, which are not used)

migrations/versions/547f860f21a7_in_trashbox_model_categories_category.py

@@ -0,0 +1,48 @@
+"""in trashbox model categories->category
+
+Revision ID: 547f860f21a7
+Revises: a0206e2bf259
+Create Date: 2023-08-12 16:13:44.598427
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '547f860f21a7'
+down_revision = 'a0206e2bf259'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('poems', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('title', sa.String(), nullable=True))
+        batch_op.add_column(sa.Column('text', sa.String(), nullable=True))
+        batch_op.add_column(sa.Column('author', sa.String(), nullable=True))
+        batch_op.drop_column('poem_name')
+        batch_op.drop_column('poem_text')
+
+    with op.batch_alter_table('trashboxes', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('category', sa.String(), nullable=True))
+        batch_op.drop_column('categories')
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('trashboxes', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('categories', sa.VARCHAR(), nullable=True))
+        batch_op.drop_column('category')
+
+    with op.batch_alter_table('poems', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('poem_text', sa.VARCHAR(), nullable=True))
+        batch_op.add_column(sa.Column('poem_name', sa.VARCHAR(), nullable=True))
+        batch_op.drop_column('author')
+        batch_op.drop_column('text')
+        batch_op.drop_column('title')
+
+    # ### end Alembic commands ###