gistfile1.py

views.py:
----------
def index(request):
    plannings = Planning.objects.order_by('time_start').filter(user=request.user)
    cal_source = PlanningCalendar(plannings)
    cal = cal_source.formatmonth(datetime.now().year, datetime.now().month)
    return render_to_response("planning/index.html", locals(), context_instance=RequestContext(request))
----------

index.html
----------
    {% autoescape off %}
    {{ cal }}        
    {% endautoescape %}
----------

calendars.py
----------
class PlanningCalendar(HTMLCalendar):
    
    def __init__(self, plannings):
        super(PlanningCalendar, self).__init__()
        self.plannings = self.group_by_day(plannings)
        
    def formatday(self, day, weekday):
        # print "day is %s and weekday is %s" % (day, weekday)
        print self.plannings
        if day != 0:
            cssclass = self.cssclasses[weekday]
            if date.today() == date(self.year, self.month, day):
                cssclass += ' today'
            if day in self.plannings:
                cssclass += ' filled'
                body = ['<ul>']
                for planning in self.plannings[day]:
                    body.append('<li>')
                    body.append('(%s) <a href="%s">%s' % (planning.time_start.strftime("%H:%M"), planning.get_absolute_url(), planning.name))
                    body.append('</a></li>')
                body.append('</ul>')
                return self.day_cell(cssclass, '%d %s' % (day, ''.join(body)))
            return self.day_cell(cssclass, day)
        return self.day_cell('noday', '&nbsp;')

    def formatmonth(self, year, month):
        self.year, self.month = year, month
        return super(PlanningCalendar, self).formatmonth(year, month)
    
    def group_by_day(self, plannings):
        field = lambda planning: planning.time_start.day
        return dict(
            [(day, list(items)) for day, items in groupby(plannings, field)]
        )
    
    def day_cell(self, cssclass, body):
        return '<td class="%s">%s</td>' % (cssclass, body)
----------

models.py
----------
class Planning(models.Model):
    """
    Planning
    """
    user = models.ForeignKey(User)
    name = models.CharField(blank=False, max_length=255)
    project = models.ForeignKey(Project)
    date_added = models.DateField(default=datetime.today)
    time_start = models.DateTimeField(blank=False, default=datetime.now)
    time_end = models.DateTimeField(blank=True, default=datetime.now)
    description = models.TextField(blank=True)

    class Meta:
        verbose_name_plural = u"Planningen"
    
    def clientname(self):
        return self.project.client.name
    
    def get_absolute_url(self):
        return reverse('planning-detail', args=[self.time_start.strftime("%Y").lower(), self.time_start.strftime("%b").lower(), self.time_start.strftime("%d").lower(), self.id])
    
    def __unicode__(self):
        return str(self.name) + " (" + self.project.client.name + ")"
----------