sql migration

migrations/versions/2020_091020_84471852b610_.py

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+"""empty message
+
+Revision ID: 84471852b610
+Revises: b82bcad9accf
+Create Date: 2020-09-10 20:15:10.956801
+
+"""
+import sqlalchemy_utils
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '84471852b610'
+down_revision = 'b82bcad9accf'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('batch_import',
+    sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
+    sa.Column('created_at', sqlalchemy_utils.types.arrow.ArrowType(), nullable=False),
+    sa.Column('updated_at', sqlalchemy_utils.types.arrow.ArrowType(), nullable=True),
+    sa.Column('user_id', sa.Integer(), nullable=False),
+    sa.Column('file_id', sa.Integer(), nullable=False),
+    sa.Column('processed', sa.Boolean(), nullable=False),
+    sa.Column('summary', sa.Text(), nullable=True),
+    sa.ForeignKeyConstraint(['file_id'], ['file.id'], ondelete='cascade'),
+    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ondelete='cascade'),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.add_column('alias', sa.Column('batch_import_id', sa.Integer(), nullable=True))
+    op.create_foreign_key(None, 'alias', 'batch_import', ['batch_import_id'], ['id'], ondelete='SET NULL')
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(None, 'alias', type_='foreignkey')
+    op.drop_column('alias', 'batch_import_id')
+    op.drop_table('batch_import')
+    # ### end Alembic commands ###