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authorChristian Franke <nobody@nowhere.ws>2012-01-02 02:26:33 +0100
committerChristian Franke <nobody@nowhere.ws>2012-01-02 02:28:35 +0100
commitd52f1cf588d265ef85545a2725bd6c0537402282 (patch)
treeb77253cb7bd6e5efc1b15bfc85590e9555a509f4 /sublab_project/calendarium
parent31486bf6431f1f42adfe2584ce8d5b7d42defadd (diff)
Add calendarium for iCal foo
Diffstat (limited to 'sublab_project/calendarium')
-rw-r--r--sublab_project/calendarium/__init__.py0
-rw-r--r--sublab_project/calendarium/calendarium.py79
-rw-r--r--sublab_project/calendarium/models.py3
-rw-r--r--sublab_project/calendarium/tests.py16
-rw-r--r--sublab_project/calendarium/views.py1
5 files changed, 99 insertions, 0 deletions
diff --git a/sublab_project/calendarium/__init__.py b/sublab_project/calendarium/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/sublab_project/calendarium/__init__.py
diff --git a/sublab_project/calendarium/calendarium.py b/sublab_project/calendarium/calendarium.py
new file mode 100644
index 0000000..2b04a50
--- /dev/null
+++ b/sublab_project/calendarium/calendarium.py
@@ -0,0 +1,79 @@
+import urllib2
+import icalendar
+from dateutil.rrule import rrulestr
+
+class Event(object):
+ def __init__(self, name, description, start, end):
+ self.name = name
+ self.description = description
+ self.start = start
+ self.end = end
+
+ def __repr__(self):
+ return '<%s.%s (name=%s, start=%s, end=%s)>' % (
+ __name__, self.__class__.__name__,
+ repr(self.name), repr(self.start), repr(self.end))
+
+class Calendarium(object):
+ def __init__(self, string):
+ """
+ Loads a calendar from the string and provides a nice API to it.
+ """
+
+ self.calendar = icalendar.Calendar.from_string(string)
+
+ def get_events(self, after, before):
+ """
+ This functions yields a list of events in the calendar.
+
+ Only events after (including) after will be shown. Recurring
+ events til before (inclusively) will be shown.
+ """
+
+ for event in self.calendar.walk('vevent'):
+ event_fields = [
+ # dest , src, default
+ ('name', 'summary', 'unknown Event'),
+ ('description', 'description', ''),
+ ]
+
+ event_info = {}
+ for fieldinfo in event_fields:
+ try:
+ event_info[fieldinfo[0]] = str(event[fieldinfo[1]])
+ except KeyError:
+ event_info[fieldinfo[0]] = fieldinfo[2]
+
+ start = icalendar.vDatetime.from_ical(event['dtstart'].ical())
+ end = icalendar.vDatetime.from_ical(event['dtend'].ical())
+
+ if 'rrule' in event:
+ rrule = rrulestr(event['rrule'].ical(), dtstart=start)
+ duration = end - start
+
+ for occurence in rrule.between(after, before, True):
+ yield Event(
+ start=occurence,
+ end=occurence + duration,
+ **event_info)
+ else:
+ if start >= after:
+ yield Event(start=start, end=end, **event_info)
+
+if __name__ == '__main__':
+ # simple example
+
+ from dateutil.relativedelta import relativedelta
+ from datetime import datetime
+ import urllib2
+
+ calendar_request = urllib2.urlopen('https://sublab.org:5232/calendars/events')
+ calendar = Calendarium(calendar_request.read())
+ calendar_request.close()
+
+ now = datetime.now()
+ events = list(calendar.get_events(now-relativedelta(days=1), now+relativedelta(months=+2)))
+ events.sort(key=lambda x:x.start)
+
+ for event in events:
+ print event
diff --git a/sublab_project/calendarium/models.py b/sublab_project/calendarium/models.py
new file mode 100644
index 0000000..71a8362
--- /dev/null
+++ b/sublab_project/calendarium/models.py
@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.
diff --git a/sublab_project/calendarium/tests.py b/sublab_project/calendarium/tests.py
new file mode 100644
index 0000000..501deb7
--- /dev/null
+++ b/sublab_project/calendarium/tests.py
@@ -0,0 +1,16 @@
+"""
+This file demonstrates writing tests using the unittest module. These will pass
+when you run "manage.py test".
+
+Replace this with more appropriate tests for your application.
+"""
+
+from django.test import TestCase
+
+
+class SimpleTest(TestCase):
+ def test_basic_addition(self):
+ """
+ Tests that 1 + 1 always equals 2.
+ """
+ self.assertEqual(1 + 1, 2)
diff --git a/sublab_project/calendarium/views.py b/sublab_project/calendarium/views.py
new file mode 100644
index 0000000..60f00ef
--- /dev/null
+++ b/sublab_project/calendarium/views.py
@@ -0,0 +1 @@
+# Create your views here.