Adding missing migration.

migrations/versions/9b43e725f39c_.py

@@ -0,0 +1,44 @@
+"""empty message
+
+Revision ID: 9b43e725f39c
+Revises: 55c6cd407d89
+Create Date: 2020-05-25 23:09:14.761831
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '9b43e725f39c'
+down_revision = '55c6cd407d89'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('approval_file',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('file_id', sa.Integer(), nullable=False),
+    sa.Column('approval_id', sa.Integer(), nullable=False),
+    sa.Column('file_version', sa.Integer(), nullable=False),
+    sa.ForeignKeyConstraint(['approval_id'], ['approval.id'], ),
+    sa.ForeignKeyConstraint(['file_id'], ['file.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.add_column('approval', sa.Column('date_created', sa.DateTime(timezone=True), nullable=True))
+    op.add_column('approval', sa.Column('version', sa.Integer(), nullable=True))
+    op.add_column('approval', sa.Column('workflow_hash', sa.String(), nullable=True))
+    op.drop_column('approval', 'workflow_version')
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('approval', sa.Column('workflow_version', sa.VARCHAR(), autoincrement=False, nullable=True))
+    op.drop_column('approval', 'workflow_hash')
+    op.drop_column('approval', 'version')
+    op.drop_column('approval', 'date_created')
+    op.drop_table('approval_file')
+    # ### end Alembic commands ###