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migrations/versions/0112_add_start_end_dates.py

@@ -8,6 +8,8 @@ Create Date: 2017-07-12 13:35:45.636618
 from datetime import datetime
 from alembic import op
 import sqlalchemy as sa
+from sqlalchemy import text
+
 from app.dao.date_util import get_month_start_and_end_date_in_utc
 
 down_revision = '0111_drop_old_service_flags'
@@ -26,9 +28,13 @@ def upgrade():
     for x in res:
         start_date, end_date = get_month_start_and_end_date_in_utc(
             datetime(int(x.year), datetime.strptime(x.month, '%B').month, 1))
-        conn.execute("update monthly_billing set start_date = '{}', end_date = '{}' where id = '{}'".format(start_date,
-                                                                                                            end_date,
-                                                                                                            x.id))
+        input_params = {
+            "start_date": start_date,
+            "end_date": end_date,
+            "x_id": x.id
+        }
+        conn.execute(text("update monthly_billing set start_date = :start_date, end_date = :end_date where id = :x_id"),
+                     input_params)
     op.alter_column('monthly_billing', 'start_date', nullable=False)
     op.alter_column('monthly_billing', 'end_date', nullable=False)
     op.create_index(op.f('uix_monthly_billing'), 'monthly_billing', ['service_id', 'start_date', 'notification_type'],