Add speaker talks report

vendor/symposion/symposion/speakers/urls.py

@@ -16,4 +16,5 @@ urlpatterns = [
     url(r"^profile/(?P<pk>\d+)/$", speaker_profile, name="speaker_profile"),
     url(r"^staff/create/(\d+)/$", speaker_create_staff, name="speaker_create_staff"),
     url(r"^track-report/$", speaker_track_report, name="speaker_track_report"),
+    url(r"^talks-report/$", speaker_track_report, name="speaker_talks_report"),
 ]

vendor/symposion/symposion/speakers/views.py

@@ -165,3 +165,29 @@ def speaker_track_report(request):
         for row in cursor.fetchall():
             writer.writerow(row)
     return response
+
+
+@login_required
+@user_passes_test(lambda u: u.is_staff)
+def speaker_talks_report(request):
+    query = """
+        SELECT speaker.name speaker, email, telephone, COUNT(*) num_talks, STRING_agg(title, '; ') tracks
+        FROM symposion_proposals_proposalbase
+        INNER JOIN symposion_speakers_speaker speaker ON speaker_id = speaker.id
+        INNER JOIN symposion_proposals_proposalkind kind ON kind_id = kind.id
+        INNER JOIN auth_user ON user_id = auth_user.id
+        GROUP BY speaker.id, auth_user.id
+        ORDER BY num_talks desc
+    """
+    response = HttpResponse(content_type='text/csv')
+    filename = 'speaker_talks_report-{}.csv'.format(
+        datetime.datetime.now().strftime('%Y-%m-%d'),
+    )
+    response['Content-Disposition'] = f'attachment; filename={filename}'
+    writer = csv.writer(response)
+    with connection.cursor() as cursor:
+        cursor.execute(query)
+        writer.writerow([i[0] for i in cursor.description])
+        for row in cursor.fetchall():
+            writer.writerow(row)
+    return response