Added excel export

counter/templates/counter/list.html

@@ -4,6 +4,11 @@
 
 {% block content %}
 <h1 class="center">Counts</h1>
+<p class="center">
+  <a class="btn waves-effect waves-light" href="{% url "count_export" %}" style="margin-bottom: 3em">
+    Excel Data (CSV) <i class="material-icons right">file_download</i>
+  </a>
+</p>
 {% include 'pagination.html' %}
 <table class="centered">
   <thead>

counter/templates/index.html

@@ -4,7 +4,13 @@
 {% block title %}Home{% endblock %}
 {% block content %}
 <h1 class="center">Arrow counter</h1>
-<h5 class="center" style="margin-bottom: 3rem">A simple online arrow counter</h5>
+<h5 class="center">A simple online arrow counter</h5>
+<p class="center" style="margin-bottom: 3rem">
+  <a class="btn waves-effect waves-light" href="{% url "count_export" %}">
+    Excel Data (CSV) <i class="material-icons right">file_download</i>
+  </a>
+</p>
+
 {% if user.is_authenticated %}
 <div class="card-panel grey lighten-2">
   <h5 class="center">Arrows shot this year:</h5>

counter/urls.py

@@ -5,6 +5,7 @@ from . import views
 urlpatterns = [
     path('', views.index, name='index'),
     path('stats', views.count_stats, name='stats'),
+    path('count/export', views.arrow_count_export, name='count_export'),
     path('count/list', views.arrow_count_list, name='count_list'),
     path('count/new', login_required(views.NewArrowCount.as_view()),
         name='count_new'),

counter/views.py

@@ -16,6 +16,8 @@ from django.db.models import Sum
 from datetime import datetime, timedelta, date
 import json
 from django.core.serializers.json import DjangoJSONEncoder
+import csv
+from django.utils.encoding import smart_str
 
 # https://stackoverflow.com/questions/5882405
 def tofirstdayinisoweek(year, week):
@@ -51,6 +53,7 @@ def index(request):
     else:
         return HttpResponse(template.render({}), request)
 
+@login_required
 def count_stats(request):
     template = loader.get_template('stats.html')
 
@@ -71,6 +74,25 @@ def count_stats(request):
         'weeklyArrows': json.dumps(list(weeklyArrows), cls=DjangoJSONEncoder)
         }, request))
 
+@login_required
+def arrow_count_export(request):
+    counts = ArrowCount.objects.filter(user=request.user).order_by('-date').all()
+    response = HttpResponse(content_type='text/csv')
+    response['Content-Disposition'] = 'attachment; filename=counts-' \
+        + datetime.today().strftime('%Y-%m-%d') + '.csv'
+    writer = csv.writer(response, csv.excel, delimiter=';')
+    response.write(u'\ufeff'.encode('utf8'))
+    writer.writerow([
+        smart_str(u"Date"),
+        smart_str(u"Count")
+    ])
+    for row in counts:
+        writer.writerow([
+            smart_str(row.date.strftime('%Y-%m-%d')),
+            smart_str(row.count)
+        ])
+    return response
+
 @login_required
 def arrow_count_list(request):
     page = request.GET.get('page')