🔧 MAINTAIN: Add NotImplementedError for migration downgrades

Downgrading storage version is not explicitly supported in aiida-core, or exposed for the user. Previous to #5330, some downgrade functionality was required for testing, since migration tests involved migrating down the global profile, then migrating it back up to the target version. These migrations though were often incomplete, migrating database schema but not the actual data. Now, migration tests are performed by starting with a separate, empty profile, and migrating up. Since these downgrades are no longer required and are un-tested, we replace their content with an explicit `NotImplementedError`.
aiidateam · Feb 16, 2022 · 842d47d · 842d47d
1 parent 62fbf05
commit 842d47d
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diff --git a/aiida/backends/sqlalchemy/migrations/versions/041a79fc615f_dblog_cleaning.py b/aiida/backends/sqlalchemy/migrations/versions/041a79fc615f_dblog_cleaning.py
@@ -73,35 +73,4 @@ def downgrade():
     """
     Downgrade function to the previous schema.
     """
-    # Create an empty column objname (the data is permanently lost)
-    op.add_column('db_dblog', sa.Column('objname', sa.VARCHAR(length=255), autoincrement=False, nullable=True))
-    op.create_index('ix_db_dblog_objname', 'db_dblog', ['objname'])
-
-    # Creating a column objpk -
-    op.add_column('db_dblog', sa.Column('objpk', sa.INTEGER(), autoincrement=False, nullable=True))
-
-    # Copy the data back to objpk from dbnode_id
-    op.execute(text("""UPDATE db_dblog SET objpk=dbnode_id"""))
-
-    # Removing the column dbnode_id
-    op.drop_column('db_dblog', 'dbnode_id')
-
-    # Populate objname with correct values
-    op.execute(
-        text("""UPDATE db_dblog SET objname=db_dbnode.type
-    FROM db_dbnode WHERE db_dbnode.id = db_dblog.objpk""")
-    )
-
-    # Enrich metadata with objpk and objname if these keys don't exist
-    op.execute(
-        text(
-            """UPDATE db_dblog SET metadata = jsonb_set(metadata, '{"objpk"}', to_jsonb(objpk))
-    WHERE NOT (metadata ?| '{"objpk"}') """
-        )
-    )
-    op.execute(
-        text(
-            """UPDATE db_dblog SET metadata = jsonb_set(metadata, '{"objname"}', to_jsonb(objname))
-    WHERE NOT (metadata ?| '{"objname"}') """
-        )
-    )
+    raise NotImplementedError('Downgrade of 041a79fc615f.')
diff --git a/aiida/backends/sqlalchemy/migrations/versions/118349c10896_default_link_label.py b/aiida/backends/sqlalchemy/migrations/versions/118349c10896_default_link_label.py
@@ -47,3 +47,4 @@ def upgrade():
 
 def downgrade():
     """Migrations for the downgrade."""
+    raise NotImplementedError('Downgrade of 118349c10896.')
diff --git a/...a/backends/sqlalchemy/migrations/versions/12536798d4d3_trajectory_symbols_to_attribute.py b/...a/backends/sqlalchemy/migrations/versions/12536798d4d3_trajectory_symbols_to_attribute.py
@@ -25,7 +25,7 @@
 from alembic import op
 from sqlalchemy import Integer, String, cast
 from sqlalchemy.dialects.postgresql import JSONB, UUID
-from sqlalchemy.sql import column, func, select, table, text
+from sqlalchemy.sql import column, func, select, table
 
 from aiida.backends.sqlalchemy.migrations.utils.utils import load_numpy_array_from_repository
 
@@ -69,20 +69,4 @@ def upgrade():
 
 def downgrade():
     """Migrations for the downgrade."""
-    connection = op.get_bind()
-
-    DbNode = table(
-        'db_dbnode',
-        column('id', Integer),
-        column('uuid', UUID),
-        column('type', String),
-        column('attributes', JSONB),
-    )
-
-    nodes = connection.execute(
-        select(DbNode.c.id,
-               DbNode.c.uuid).where(DbNode.c.type == op.inline_literal('node.data.array.trajectory.TrajectoryData.'))
-    ).fetchall()
-
-    for pk, _ in nodes:
-        connection.execute(text(f"""UPDATE db_dbnode SET attributes = attributes #- '{{symbols}}' WHERE id = {pk}"""))
+    raise NotImplementedError('Downgrade of 12536798d4d3.')
diff --git a/aiida/backends/sqlalchemy/migrations/versions/140c971ae0a3_migrate_builtin_calculations.py b/aiida/backends/sqlalchemy/migrations/versions/140c971ae0a3_migrate_builtin_calculations.py
@@ -61,29 +61,4 @@ def upgrade():
 
 def downgrade():
     """Migrations for the downgrade."""
-    conn = op.get_bind()  # pylint: disable=no-member
-
-    statement = text(
-        """
-        UPDATE db_dbnode SET type = 'calculation.job.simpleplugins.arithmetic.add.ArithmeticAddCalculation.'
-        WHERE type = 'calculation.job.arithmetic.add.ArithmeticAddCalculation.';
-
-        UPDATE db_dbnode SET type = 'calculation.job.simpleplugins.templatereplacer.TemplatereplacerCalculation.'
-        WHERE type = 'calculation.job.templatereplacer.TemplatereplacerCalculation.';
-
-        UPDATE db_dbnode SET process_type = 'aiida.calculations:simpleplugins.arithmetic.add'
-        WHERE process_type = 'aiida.calculations:arithmetic.add';
-
-        UPDATE db_dbnode SET process_type = 'aiida.calculations:simpleplugins.templatereplacer'
-        WHERE process_type = 'aiida.calculations:templatereplacer';
-
-        UPDATE db_dbnode SET attributes = jsonb_set(attributes, '{"input_plugin"}', '"simpleplugins.arithmetic.add"')
-        WHERE attributes @> '{"input_plugin": "arithmetic.add"}'
-        AND type = 'data.code.Code.';
-
-        UPDATE db_dbnode SET attributes = jsonb_set(attributes, '{"input_plugin"}', '"simpleplugins.templatereplacer"')
-        WHERE attributes @> '{"input_plugin": "templatereplacer"}'
-        AND type = 'data.code.Code.';
-    """
-    )
-    conn.execute(statement)
+    raise NotImplementedError('Downgrade of 140c971ae0a3.')
diff --git a/aiida/backends/sqlalchemy/migrations/versions/162b99bca4a2_drop_dbcalcstate.py b/aiida/backends/sqlalchemy/migrations/versions/162b99bca4a2_drop_dbcalcstate.py
@@ -16,8 +16,6 @@
 
 """
 from alembic import op
-import sqlalchemy as sa
-from sqlalchemy.dialects import postgresql
 
 # revision identifiers, used by Alembic.
 revision = '162b99bca4a2'
@@ -27,19 +25,10 @@
 
 
 def upgrade():
+    """Migrations for the upgrade."""
     op.drop_table('db_dbcalcstate')
 
 
 def downgrade():
-    op.create_table(
-        'db_dbcalcstate', sa.Column('id', sa.INTEGER(), nullable=False),
-        sa.Column('dbnode_id', sa.INTEGER(), autoincrement=False, nullable=True),
-        sa.Column('state', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
-        sa.Column('time', postgresql.TIMESTAMP(timezone=True), autoincrement=False, nullable=True),
-        sa.ForeignKeyConstraint(['dbnode_id'], ['db_dbnode.id'],
-                                name='db_dbcalcstate_dbnode_id_fkey',
-                                ondelete='CASCADE',
-                                initially='DEFERRED',
-                                deferrable=True), sa.PrimaryKeyConstraint('id', name='db_dbcalcstate_pkey'),
-        sa.UniqueConstraint('dbnode_id', 'state', name='db_dbcalcstate_dbnode_id_state_key')
-    )
+    """Migrations for the downgrade."""
+    raise NotImplementedError('Downgrade of 162b99bca4a2.')
diff --git a/...kends/sqlalchemy/migrations/versions/1830c8430131_drop_node_columns_nodeversion_public.py b/...kends/sqlalchemy/migrations/versions/1830c8430131_drop_node_columns_nodeversion_public.py
@@ -20,7 +20,6 @@
 # pylint: disable=invalid-name,no-member,import-error,no-name-in-module
 
 from alembic import op
-import sqlalchemy as sa
 
 # revision identifiers, used by Alembic.
 revision = '1830c8430131'
@@ -30,10 +29,11 @@
 
 
 def upgrade():
+    """Migrations for the upgrade."""
     op.drop_column('db_dbnode', 'nodeversion')
     op.drop_column('db_dbnode', 'public')
 
 
 def downgrade():
-    op.add_column('db_dbnode', sa.Column('public', sa.BOOLEAN(), autoincrement=False, nullable=True))
-    op.add_column('db_dbnode', sa.Column('nodeversion', sa.INTEGER(), autoincrement=False, nullable=True))
+    """Migrations for the downgrade."""
+    raise NotImplementedError('Downgrade of 1830c8430131.')
diff --git a/aiida/backends/sqlalchemy/migrations/versions/1b8ed3425af9_remove_legacy_workflows.py b/aiida/backends/sqlalchemy/migrations/versions/1b8ed3425af9_remove_legacy_workflows.py
@@ -7,7 +7,7 @@
 # For further information on the license, see the LICENSE.txt file        #
 # For further information please visit http://www.aiida.net               #
 ###########################################################################
-# pylint: disable=invalid-name
+# pylint: disable=invalid-name,no-member,import-error,no-name-in-module
 """Remove legacy workflows
 
 This is similar to migration django_0032
@@ -17,11 +17,7 @@
 Create Date: 2019-04-03 17:11:44.073582
 
 """
-# Remove when https://github.com/PyCQA/pylint/issues/1931 is fixed
-# pylint: disable=no-member,import-error,no-name-in-module
 from alembic import op
-import sqlalchemy as sa
-from sqlalchemy.dialects import postgresql
 
 from aiida.backends.sqlalchemy.migrations.utils.legacy_workflows import export_workflow_data
 
@@ -49,84 +45,4 @@ def upgrade():
 
 def downgrade():
     """Migrations for the downgrade."""
-    op.create_table(
-        'db_dbworkflow',
-        sa.Column(
-            'id',
-            sa.INTEGER(),
-            server_default=sa.text("nextval('db_dbworkflow_id_seq'::regclass)"),
-            autoincrement=True,
-            nullable=False
-        ),
-        sa.Column('uuid', postgresql.UUID(), autoincrement=False, nullable=True),
-        sa.Column('ctime', postgresql.TIMESTAMP(timezone=True), autoincrement=False, nullable=True),
-        sa.Column('mtime', postgresql.TIMESTAMP(timezone=True), autoincrement=False, nullable=True),
-        sa.Column('user_id', sa.INTEGER(), autoincrement=False, nullable=True),
-        sa.Column('label', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
-        sa.Column('description', sa.TEXT(), autoincrement=False, nullable=True),
-        sa.Column('nodeversion', sa.INTEGER(), autoincrement=False, nullable=True),
-        sa.Column('lastsyncedversion', sa.INTEGER(), autoincrement=False, nullable=True),
-        sa.Column('state', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
-        sa.Column('report', sa.TEXT(), autoincrement=False, nullable=True),
-        sa.Column('module', sa.TEXT(), autoincrement=False, nullable=True),
-        sa.Column('module_class', sa.TEXT(), autoincrement=False, nullable=True),
-        sa.Column('script_path', sa.TEXT(), autoincrement=False, nullable=True),
-        sa.Column('script_md5', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
-        sa.ForeignKeyConstraint(['user_id'], ['db_dbuser.id'], name='db_dbworkflow_user_id_fkey'),
-        sa.PrimaryKeyConstraint('id', name='db_dbworkflow_pkey'),
-        sa.UniqueConstraint('uuid', name='db_dbworkflow_uuid_key'),
-        postgresql_ignore_search_path=False
-    )
-    op.create_index('ix_db_dbworkflow_label', 'db_dbworkflow', ['label'], unique=False)
-    op.create_table(
-        'db_dbworkflowdata', sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
-        sa.Column('parent_id', sa.INTEGER(), autoincrement=False, nullable=True),
-        sa.Column('name', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
-        sa.Column('time', postgresql.TIMESTAMP(timezone=True), autoincrement=False, nullable=True),
-        sa.Column('data_type', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
-        sa.Column('value_type', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
-        sa.Column('json_value', sa.TEXT(), autoincrement=False, nullable=True),
-        sa.Column('aiida_obj_id', sa.INTEGER(), autoincrement=False, nullable=True),
-        sa.ForeignKeyConstraint(['aiida_obj_id'], ['db_dbnode.id'], name='db_dbworkflowdata_aiida_obj_id_fkey'),
-        sa.ForeignKeyConstraint(['parent_id'], ['db_dbworkflow.id'], name='db_dbworkflowdata_parent_id_fkey'),
-        sa.PrimaryKeyConstraint('id', name='db_dbworkflowdata_pkey'),
-        sa.UniqueConstraint('parent_id', 'name', 'data_type', name='db_dbworkflowdata_parent_id_name_data_type_key')
-    )
-    op.create_index('ix_db_dbworkflowdata_parent_id', 'db_dbworkflowdata', ['parent_id'], unique=False)
-    op.create_index('ix_db_dbworkflowdata_aiida_obj_id', 'db_dbworkflowdata', ['aiida_obj_id'], unique=False)
-    op.create_table(
-        'db_dbworkflowstep', sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
-        sa.Column('parent_id', sa.INTEGER(), autoincrement=False, nullable=True),
-        sa.Column('user_id', sa.INTEGER(), autoincrement=False, nullable=True),
-        sa.Column('name', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
-        sa.Column('time', postgresql.TIMESTAMP(timezone=True), autoincrement=False, nullable=True),
-        sa.Column('nextcall', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
-        sa.Column('state', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
-        sa.ForeignKeyConstraint(['parent_id'], ['db_dbworkflow.id'], name='db_dbworkflowstep_parent_id_fkey'),
-        sa.ForeignKeyConstraint(['user_id'], ['db_dbuser.id'], name='db_dbworkflowstep_user_id_fkey'),
-        sa.PrimaryKeyConstraint('id', name='db_dbworkflowstep_pkey'),
-        sa.UniqueConstraint('parent_id', 'name', name='db_dbworkflowstep_parent_id_name_key')
-    )
-    op.create_table(
-        'db_dbworkflowstep_calculations', sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
-        sa.Column('dbworkflowstep_id', sa.INTEGER(), autoincrement=False, nullable=True),
-        sa.Column('dbnode_id', sa.INTEGER(), autoincrement=False, nullable=True),
-        sa.ForeignKeyConstraint(['dbnode_id'], ['db_dbnode.id'], name='db_dbworkflowstep_calculations_dbnode_id_fkey'),
-        sa.ForeignKeyConstraint(['dbworkflowstep_id'], ['db_dbworkflowstep.id'],
-                                name='db_dbworkflowstep_calculations_dbworkflowstep_id_fkey'),
-        sa.PrimaryKeyConstraint('id', name='db_dbworkflowstep_calculations_pkey'),
-        sa.UniqueConstraint('dbworkflowstep_id', 'dbnode_id', name='db_dbworkflowstep_calculations_id_dbnode_id_key')
-    )
-    op.create_table(
-        'db_dbworkflowstep_sub_workflows', sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
-        sa.Column('dbworkflowstep_id', sa.INTEGER(), autoincrement=False, nullable=True),
-        sa.Column('dbworkflow_id', sa.INTEGER(), autoincrement=False, nullable=True),
-        sa.ForeignKeyConstraint(['dbworkflow_id'], ['db_dbworkflow.id'],
-                                name='db_dbworkflowstep_sub_workflows_dbworkflow_id_fkey'),
-        sa.ForeignKeyConstraint(['dbworkflowstep_id'], ['db_dbworkflowstep.id'],
-                                name='db_dbworkflowstep_sub_workflows_dbworkflowstep_id_fkey'),
-        sa.PrimaryKeyConstraint('id', name='db_dbworkflowstep_sub_workflows_pkey'),
-        sa.UniqueConstraint(
-            'dbworkflowstep_id', 'dbworkflow_id', name='db_dbworkflowstep_sub_workflows_id_dbworkflow__key'
-        )
-    )
+    raise NotImplementedError('Removal of legacy workflows is not reversible.')
diff --git a/aiida/backends/sqlalchemy/migrations/versions/1de112340b16_django_parity_1.py b/aiida/backends/sqlalchemy/migrations/versions/1de112340b16_django_parity_1.py
@@ -168,4 +168,4 @@ def upgrade():  # pylint: disable=too-many-statements
 
 def downgrade():
     """Downgrade database schema."""
-    # No need to convert the values back to null
+    raise NotImplementedError('Downgrade of 1de112340b16.')
diff --git a/aiida/backends/sqlalchemy/migrations/versions/1de112340b18_django_parity_3.py b/aiida/backends/sqlalchemy/migrations/versions/1de112340b18_django_parity_3.py
@@ -33,3 +33,4 @@ def upgrade():
 
 def downgrade():
     """Migrations for the downgrade."""
+    raise NotImplementedError('Downgrade of 1de112340b18.')
diff --git a/aiida/backends/sqlalchemy/migrations/versions/1feaea71bd5a_migrate_repository.py b/aiida/backends/sqlalchemy/migrations/versions/1feaea71bd5a_migrate_repository.py
@@ -33,3 +33,4 @@ def upgrade():
 
 def downgrade():
     """Migrations for the downgrade."""
+    raise NotImplementedError('Migration of the file repository is not reversible.')
diff --git a/aiida/backends/sqlalchemy/migrations/versions/239cea6d2452_provenance_redesign.py b/aiida/backends/sqlalchemy/migrations/versions/239cea6d2452_provenance_redesign.py
@@ -25,7 +25,7 @@
 
 
 def upgrade():
-    """The upgrade migration actions."""
+    """Migrations for the upgrade."""
     from aiida.backends.sqlalchemy.migrations.utils import provenance_redesign
 
     # Migrate calculation nodes by inferring the process type from the type string
@@ -109,32 +109,5 @@ def upgrade():
 
 
 def downgrade():
-    """The downgrade migration actions."""
-    op.execute(
-        """
-        UPDATE db_dbnode SET type = 'calculation.job.JobCalculation.'
-        WHERE type = 'node.process.calculation.calcjob.CalcJobNode.';
-
-        UPDATE db_dbnode SET type = 'calculatison.inline.InlineCalculation.'
-        WHERE type = 'node.process.calculation.calcfunction.CalcFunctionNode.';
-
-        UPDATE db_dbnode SET type = 'calculation.function.FunctionCalculation.'
-        WHERE type = 'node.process.workflow.workfunction.WorkFunctionNode.';
-
-        UPDATE db_dbnode SET type = 'calculation.work.WorkCalculation.'
-        WHERE type = 'node.process.workflow.workchain.WorkChainNode.';
-
-
-        UPDATE db_dblink SET type = 'inputlink'
-        WHERE type = 'input_call' OR type = 'input_work';
-
-        UPDATE db_dblink SET type = 'calllink'
-        WHERE type = 'call_call' OR type = 'call_work';
-
-        UPDATE db_dblink SET type = 'createlink'
-        WHERE type = 'create';
-
-        UPDATE db_dblink SET type = 'returnlink'
-        WHERE type = 'return';
-        """
-    )
+    """Migrations for the downgrade."""
+    raise NotImplementedError('Downgrade of 239cea6d2452.')
diff --git a/...nds/sqlalchemy/migrations/versions/26d561acd560_data_migration_legacy_job_calculations.py b/...nds/sqlalchemy/migrations/versions/26d561acd560_data_migration_legacy_job_calculations.py
@@ -112,3 +112,4 @@ def upgrade():
 
 def downgrade():
     """Migrations for the downgrade."""
+    raise NotImplementedError('Downgrade of 26d561acd560.')
diff --git a/aiida/backends/sqlalchemy/migrations/versions/34a831f4286d_entry_point_core_prefix.py b/aiida/backends/sqlalchemy/migrations/versions/34a831f4286d_entry_point_core_prefix.py
@@ -75,3 +75,4 @@ def upgrade():
 
 def downgrade():
     """Migrations for the downgrade."""
+    raise NotImplementedError('Downgrade of 34a831f4286d.')
diff --git a/aiida/backends/sqlalchemy/migrations/versions/35d4ee9a1b0e_code_hidden_attr_to_extra.py b/aiida/backends/sqlalchemy/migrations/versions/35d4ee9a1b0e_code_hidden_attr_to_extra.py
@@ -54,26 +54,4 @@ def upgrade():
 
 def downgrade():
     """Migrations for the downgrade."""
-    conn = op.get_bind()
-
-    # Set hidden=True in attributes if the extras contain hidden=True
-    statement = text(
-        """
-        UPDATE db_dbnode SET attributes = jsonb_set(attributes, '{"hidden"}', to_jsonb(True))
-        WHERE type = 'code.Code.' AND extras @> '{"hidden": true}'
-        """
-    )
-    conn.execute(statement)
-
-    # Set hidden=False in attributes if the extras contain hidden=False
-    statement = text(
-        """
-        UPDATE db_dbnode SET attributes = jsonb_set(attributes, '{"hidden"}', to_jsonb(False))
-        WHERE type = 'code.Code.' AND extras @> '{"hidden": false}'
-        """
-    )
-    conn.execute(statement)
-
-    # Delete the hidden key from the extras
-    statement = text("""UPDATE db_dbnode SET extras = extras-'hidden' WHERE type = 'code.Code.'""")
-    conn.execute(statement)
+    raise NotImplementedError('Downgrade of 35d4ee9a1b0e.')
diff --git a/.../backends/sqlalchemy/migrations/versions/375c2db70663_dblog_uuid_uniqueness_constraint.py b/.../backends/sqlalchemy/migrations/versions/375c2db70663_dblog_uuid_uniqueness_constraint.py
@@ -27,10 +27,10 @@
 
 
 def upgrade():
-    """Add unique key constraint to the UUID column."""
+    """Migrations for the upgrade."""
     op.create_unique_constraint('db_dblog_uuid_key', 'db_dblog', ['uuid'])
 
 
 def downgrade():
-    """Remove unique key constraint to the UUID column."""
+    """Migrations for the downgrade."""
     op.drop_constraint('db_dblog_uuid_key', 'db_dblog')
diff --git a/aiida/backends/sqlalchemy/migrations/versions/37f3d4882837_make_all_uuid_columns_unique.py b/aiida/backends/sqlalchemy/migrations/versions/37f3d4882837_make_all_uuid_columns_unique.py
@@ -41,5 +41,4 @@ def upgrade():
 
 def downgrade():
     """Migrations for the downgrade."""
-    for table in tables:
-        op.drop_constraint(f'{table}_uuid_key', table)
+    raise NotImplementedError('Downgrade of 37f3d4882837.')
diff --git a/aiida/backends/sqlalchemy/migrations/versions/535039300e4a_computer_name_to_label.py b/aiida/backends/sqlalchemy/migrations/versions/535039300e4a_computer_name_to_label.py
@@ -25,6 +25,4 @@ def upgrade():
 
 def downgrade():
     """Migrations for the downgrade."""
-    op.drop_constraint('db_dbcomputer_label_key', 'db_dbcomputer')
-    op.alter_column('db_dbcomputer', 'label', new_column_name='name')  # pylint: disable=no-member
-    op.create_unique_constraint('db_dbcomputer_name_key', 'db_dbcomputer', ['name'])
+    raise NotImplementedError('Downgrade of 535039300e4a.')
Original file line number	Diff line number	Diff line change
Expand Up		@@ -47,3 +47,4 @@ def upgrade():

		def downgrade():
		"""Migrations for the downgrade."""
		raise NotImplementedError('Downgrade of 118349c10896.')
Original file line number	Diff line number	Diff line change
Expand Up		@@ -33,3 +33,4 @@ def upgrade():

		def downgrade():
		"""Migrations for the downgrade."""
		raise NotImplementedError('Downgrade of 1de112340b18.')
Original file line number	Diff line number	Diff line change
Expand Up		@@ -112,3 +112,4 @@ def upgrade():

		def downgrade():
		"""Migrations for the downgrade."""
		raise NotImplementedError('Downgrade of 26d561acd560.')
Original file line number	Diff line number	Diff line change
Expand Up		@@ -75,3 +75,4 @@ def upgrade():

		def downgrade():
		"""Migrations for the downgrade."""
		raise NotImplementedError('Downgrade of 34a831f4286d.')