New endpoint for template stats to use new query. Breaking change to the returned JSON, so adding on a different url.

app/template_statistics/rest.py

@@ -5,6 +5,7 @@ from flask import (
 )
 
 from app.dao.notifications_dao import (
+    dao_get_template_usage,
     dao_get_template_statistics_for_service,
     dao_get_template_statistics_for_template
 )
@@ -36,6 +37,31 @@ def get_template_statistics_for_service(service_id):
     return jsonify(data=data)
 
 
+@template_statistics.route('/replacement')
+def get_template_statistics_for_service_by_day(service_id):
+    if request.args.get('limit_days'):
+        try:
+            limit_days = int(request.args['limit_days'])
+        except ValueError as e:
+            error = '{} is not an integer'.format(request.args['limit_days'])
+            message = {'limit_days': [error]}
+            raise InvalidRequest(message, status_code=400)
+    else:
+        limit_days = None
+    stats = dao_get_template_usage(service_id, limit_days=limit_days)
+
+    def serialize(row):
+        return {
+            'count': row.count,
+            'day': str(row.day),
+            'template_id': str(row.template_id),
+            'template_name': row.name,
+            'template_type': row.template_type
+        }
+
+    return jsonify(data=[serialize(row) for row in stats])
+
+
 @template_statistics.route('/<template_id>')
 def get_template_statistics_for_template_id(service_id, template_id):
     stats = dao_get_template_statistics_for_template(template_id)