Add CSV exporter for the sessions list to token options

This way a static site (for example) can pull down all sessions and
their data.

Author: Steve Singer

postgresqleu/confreg/backendviews.py

@@ -9,6 +9,7 @@
 from django.conf import settings
 
 import csv
+import io
 import json
 from collections import OrderedDict
 
@@ -25,7 +26,7 @@
 from .jinjapdf import render_jinja_ticket, render_jinja_badges
 from .util import send_conference_mail, get_conference_or_404, send_conference_notification
 
-from .models import Conference, ConferenceSeries
+from .models import Conference, ConferenceSeries, ConferenceSession
 from .models import ConferenceRegistration
 from .models import Speaker
 from .models import PrepaidBatch
@@ -976,12 +977,53 @@ def tokendata(request, urlname, token, datatype, dataformat, subrequest=None):
             return sponsorclaimsfile(conference, subrequest.lstrip('/'))
         else:
             return _structured_tokendata(sponsorclaimsdata(conference), dataformat)
+    elif datatype == 'sessions':
+        sessiondata(conference, writer)
     else:
         raise Http404()
 
     return writer.response
 
 
+def csvembed(iter):
+    f = io.StringIO()
+    writer = csv.writer(f, lineterminator='', delimiter=';')
+    writer.writerow(iter)
+    return f.getvalue()
+
+
+def sessiondata(conference, writer):
+    result = []
+    status_filter = []
+    sessions = ConferenceSession.objects.filter(conference=conference)
+    header = ['id', 'title', 'shorttitle', 'abstract', 'status', 'speaker', 'company',
+              'email', 'track', 'starttime', 'endtime', 'recordingconsent', 'room', 'submissionnote']
+    writer.columns(header)
+    writer.grouping = False
+    for s in sessions:
+        speaker_names = csvembed(map(lambda spk: spk.name, s.speaker.all()))
+        speaker_emails = csvembed(map(lambda spk: spk.email, s.speaker.all()))
+        speaker_companies = csvembed(map(lambda spk: spk.company, s.speaker.all()))
+        row = [
+            s.id,
+            s.title,
+            s.shorttitle,
+            s.abstract,
+            s.status_string,
+            speaker_names,
+            speaker_companies,
+            speaker_emails,
+            None if s.track is None else s.track.trackname,
+            s.starttime,
+            s.endtime,
+            s.recordingconsent,
+            None if s.room is None else s.room.roomname,
+            s.submissionnote,
+        ]
+        result.append(row)
+    writer.write_rows(result)
+
+
 def registration_dashboard_send_email(request, urlname):
     conference = get_authenticated_conference(request, urlname)
 

postgresqleu/confreg/migrations/0023_accesstokens.py

@@ -18,7 +18,7 @@ class Migration(migrations.Migration):
                 ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
                 ('token', models.CharField(max_length=200)),
                 ('description', models.TextField()),
-                ('permissions', postgresqleu.util.forms.ChoiceArrayField(base_field=models.CharField(max_length=32, choices=[('regtypes', 'Registration types and counters'), ('discounts', 'Discount codes'), ('discountspublic', 'Public discount codes'), ('vouchers', 'Voucher codes'), ('sponsors', 'Sponsors and counts'), ('addopts', 'Additional options and counts'), ('schedule', 'Schedule JSON'), ('sponsorlevels', 'Sponsor level metadata'), ('sponsorclaims', 'Sponsor claimed benefits')]), size=None)),
+                ('permissions', postgresqleu.util.forms.ChoiceArrayField(base_field=models.CharField(max_length=32, choices=[('regtypes', 'Registration types and counters'), ('discounts', 'Discount codes'), ('discountspublic', 'Public discount codes'), ('vouchers', 'Voucher codes'), ('sponsors', 'Sponsors and counts'), ('addopts', 'Additional options and counts'), ('schedule', 'Schedule JSON'), ('sponsorlevels', 'Sponsor level metadata'), ('sponsorclaims', 'Sponsor claimed benefits'), ('sessions', 'Sessions')]), size=None)),
                 ('conference', models.ForeignKey(to='confreg.Conference', on_delete=models.CASCADE)),
             ],
         ),

postgresqleu/confreg/models.py

@@ -1556,6 +1556,7 @@ class Meta:
     ('schedule', 'Schedule JSON'),
     ('sponsorlevels', 'Sponsor level metadata'),
     ('sponsorclaims', 'Sponsor claimed benefits'),
+    ('sessions', 'Sessions')
 )