Create a new table to warehouse the monthly billing numbers

migrations/versions/0109_monthly_billing.py

@@ -0,0 +1,37 @@
+"""empty message
+
+Revision ID: 0109_monthly_billing
+Revises: 0108_change_logo_not_nullable
+Create Date: 2017-07-13 14:35:03.183659
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '0109_monthly_billing'
+down_revision = '0108_change_logo_not_nullable'
+
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+
+def upgrade():
+
+    op.create_table('monthly_billing',
+                    sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
+                    sa.Column('service_id', postgresql.UUID(as_uuid=True), nullable=False),
+                    sa.Column('month', sa.String(), nullable=False),
+                    sa.Column('year', sa.Float(), nullable=False),
+                    sa.Column('notification_type',
+                              postgresql.ENUM('email', 'sms', 'letter', name='notification_type', create_type=False),
+                              nullable=False),
+                    sa.Column('monthly_totals', postgresql.JSON(), nullable=False),
+                    sa.ForeignKeyConstraint(['service_id'], ['services.id'], ),
+                    sa.PrimaryKeyConstraint('id')
+                    )
+    op.create_index(op.f('ix_monthly_billing_service_id'), 'monthly_billing', ['service_id'], unique=False)
+    op.create_index(op.f('uix_monthly_billing'), 'monthly_billing', ['service_id', 'month', 'year', 'notification_type'], unique=True)
+
+
+def downgrade():
+    op.drop_table('monthly_billing')