Added a query and endpoint to return the count of complaints for a date-range.

Unit tests for complaints_rest.get_complaint_count have yet to be written.
Maybe there is a better name for the new endpoint.

app/complaint/complaint_rest.py

@@ -21,11 +21,12 @@ def get_all_complaints():
     return jsonify([x.serialize() for x in complaints]), 200
 
 
-@complaint_blueprint.route('/total-per-day', methods=['GET'])
+@complaint_blueprint.route('/count-by-date-range', methods=['GET'])
 def get_complaint_count():
     request_json = request.args.to_dict
     start_date = None
     end_date = None
+    # TODO: unit tests have yet to be written, need to test setting start and end date
     if request_json:
         validate(request_json, complaint_count_request)
         start_date = request_json.get('start_date', None)

app/dao/complaint_dao.py

@@ -1,6 +1,11 @@
+from datetime import timedelta
+
+from sqlalchemy import desc
+
 from app import db
 from app.dao.dao_utils import transactional
 from app.models import Complaint
+from app.utils import get_london_midnight_in_utc
 
 
 @transactional
@@ -9,8 +14,11 @@ def save_complaint(complaint):
 
 
 def fetch_complaints_by_service(service_id):
-    return Complaint.query.filter_by(service_id=service_id).all()
+    return Complaint.query.filter_by(service_id=service_id).order_by(desc(Complaint.created_at)).all()
 
 
 def fetch_count_of_complaints(start_date, end_date):
-    return Complaint.count.filter(Complaint.created_at >= start_date, Complaint.created_at < end_date)
+    start_date = get_london_midnight_in_utc(start_date)
+    end_date = get_london_midnight_in_utc(end_date + timedelta(days=1))
+
+    return Complaint.query.filter(Complaint.created_at >= start_date, Complaint.created_at < end_date).count()

tests/app/dao/test_complaint_dao.py

@@ -1,10 +1,10 @@
 import uuid
 
-from datetime import datetime
+from datetime import datetime, timedelta
 
-from app.dao.complaint_dao import save_complaint, fetch_complaints_by_service
+from app.dao.complaint_dao import save_complaint, fetch_complaints_by_service, fetch_count_of_complaints
 from app.models import Complaint
-from tests.app.db import create_service, create_template, create_notification
+from tests.app.db import create_service, create_template, create_notification, create_complaint
 
 
 def test_fetch_complaint_by_service_returns_one(sample_service, sample_email_notification):
@@ -51,7 +51,8 @@ def test_fetch_complaint_by_service_return_many(notify_db_session):
                             service_id=service_2.id,
                             ses_feedback_id=str(uuid.uuid4()),
                             complaint_type='abuse',
-                            complaint_date=datetime.utcnow()
+                            complaint_date=datetime.utcnow(),
+                            created_at=datetime.utcnow() + timedelta(minutes=1)
                             )
 
     save_complaint(complaint_1)
@@ -60,5 +61,33 @@ def test_fetch_complaint_by_service_return_many(notify_db_session):
 
     complaints = fetch_complaints_by_service(service_id=service_2.id)
     assert len(complaints) == 2
-    assert complaints[0] == complaint_2
-    assert complaints[1] == complaint_3
+    assert complaints[0] == complaint_3
+    assert complaints[1] == complaint_2
+
+
+def test_fetch_count_of_complaints(sample_email_notification):
+    create_complaint(service=sample_email_notification.service,
+                     notification=sample_email_notification,
+                     created_at=datetime(2018, 6, 6, 22, 00, 00))
+    create_complaint(service=sample_email_notification.service,
+                     notification=sample_email_notification,
+                     created_at=datetime(2018, 6, 6, 23, 00, 00))
+    create_complaint(service=sample_email_notification.service,
+                     notification=sample_email_notification,
+                     created_at=datetime(2018, 6, 7, 00, 00, 00))
+    create_complaint(service=sample_email_notification.service,
+                     notification=sample_email_notification,
+                     created_at=datetime(2018, 6, 7, 13, 00, 00))
+    create_complaint(service=sample_email_notification.service,
+                     notification=sample_email_notification,
+                     created_at=datetime(2018, 6, 7, 23))
+
+    count_of_complaints = fetch_count_of_complaints(start_date=datetime(2018, 6, 7),
+                                                    end_date=datetime(2018, 6, 7))
+    assert count_of_complaints == 3
+
+
+def test_fetch_count_of_complaints_returns_zero(notify_db):
+    count_of_complaints = fetch_count_of_complaints(start_date=datetime(2018, 6, 7),
+                                                    end_date=datetime(2018, 6, 7))
+    assert count_of_complaints == 0

tests/app/db.py

@@ -566,7 +566,8 @@ def create_ft_billing(bst_date,
 
 
 def create_complaint(service=None,
-                     notification=None):
+                     notification=None,
+                     created_at=None):
     if not service:
         service = create_service()
     if not notification:
@@ -577,7 +578,8 @@ def create_complaint(service=None,
                           service_id=service.id,
                           ses_feedback_id=str(uuid.uuid4()),
                           complaint_type='abuse',
-                          complaint_date=datetime.utcnow()
+                          complaint_date=datetime.utcnow(),
+                          created_at=created_at if created_at else datetime.now()
                           )
     db.session.add(complaint)
     db.session.commit()