Remove the status column from jobs, and update the new job status column with the previous values

migrations/versions/0049_set_job_status.py

@@ -0,0 +1,22 @@
+"""empty message
+
+Revision ID: 0049_set_job_status
+Revises: 0048_job_scheduled_time
+Create Date: 2016-08-24 13:21:51.744526
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '0049_set_job_status'
+down_revision = '0048_job_scheduled_time'
+
+from alembic import op
+
+
+def upgrade():
+    op.execute("update jobs set job_status = status where job_status is null")
+    pass
+
+
+def downgrade():
+    pass

migrations/versions/0050_drop_jobs_status.py

@@ -0,0 +1,28 @@
+"""empty message
+
+Revision ID: 0050_drop_jobs_status
+Revises: 0049_set_job_status
+Create Date: 2016-08-25 15:56:31.779399
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '0050_drop_jobs_status'
+down_revision = '0049_set_job_status'
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+def upgrade():
+    op.alter_column('jobs', 'job_status',
+               existing_type=sa.VARCHAR(length=255),
+               nullable=False)
+    op.drop_column('jobs', 'status')
+
+
+def downgrade():
+    op.add_column('jobs', sa.Column('status', postgresql.ENUM('pending', 'in progress', 'finished', 'sending limits exceeded', name='job_status_types'), autoincrement=False, nullable=False))
+    op.alter_column('jobs', 'job_status',
+               existing_type=sa.VARCHAR(length=255),
+               nullable=True)