Add function_alias column in jobs table

Story: #2005921
Task: #34185

Change-Id: I6ec192fb90a06f9c728b3ee6adac7bb3902c58c2

qinling/db/sqlalchemy/migration/alembic_migrations/versions/006_function_alias_for_job.py

@@ -0,0 +1,32 @@
+# Copyright 2019 Catalyst Cloud Ltd.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License");
+#    you may not use this file except in compliance with the License.
+#    You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS,
+#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#    See the License for the specific language governing permissions and
+#    limitations under the License.
+
+"""add function_alias field for jobs table
+
+Revision ID: 006
+Revises: 005
+"""
+
+revision = '006'
+down_revision = '005'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.add_column(
+        'jobs',
+        sa.Column('function_alias', sa.String(length=255), nullable=True)
+    )

qinling/db/sqlalchemy/models.py

@@ -78,6 +78,7 @@ class Job(model_base.QinlingSecureModelBase):
     function = relationship('Function', back_populates="jobs")
     function_input = sa.Column(sa.String(255), nullable=True)
     function_version = sa.Column(sa.Integer, default=0)
+    function_alias = sa.Column(sa.String(255), nullable=True)
 
     def to_dict(self):
         d = super(Job, self).to_dict()