Provider Statistics added.

Rates command added with a test.

Updated to include added migration.

app/commands.py

@@ -0,0 +1,30 @@
+from datetime import datetime
+from decimal import Decimal
+from flask.ext.script import Command, Manager, Option
+from app.models import PROVIDERS
+from app.dao.provider_rates_dao import create_provider_rates
+
+
+class CreateProviderRateCommand(Command):
+
+    option_list = (
+        Option('-p', '--provider_name', dest="provider_name", help='Provider name'),
+        Option('-c', '--cost', dest="cost", help='Cost (pence) per message including decimals'),
+        Option('-d', '--valid_from', dest="valid_from", help="Date (%Y-%m-%dT%H:%M:%S) valid from")
+    )
+
+    def run(self, provider_name, cost, valid_from):
+        if provider_name not in PROVIDERS:
+            raise Exception("Invalid provider name, must be one of ({})".format(', '.join(PROVIDERS)))
+
+        try:
+            cost = Decimal(cost)
+        except:
+            raise Exception("Invalid cost value.")
+
+        try:
+            valid_from = datetime.strptime('%Y-%m-%dT%H:%M:%S', valid_from)
+        except:
+            raise Exception("Invalid valid_from date. Use the format %Y-%m-%dT%H:%M:%S")
+
+        create_provider_rates(provider_name, valid_from, cost)