standardize week numbers on iso format

panikweb/paniktags/templatetags/paniktags.py

@@ -10,10 +10,11 @@ from django.conf import settings
 from django.db.models.query import QuerySet
 from django.utils import simplejson
 from datetime import datetime, timedelta
-from django.views.generic.dates import _date_from_string
 
 from emissions.utils import period_program
 
+from panikweb import utils
+
 register = template.Library()
 
 @register.filter(name='zip')
@@ -93,11 +94,12 @@ def metanav(context, active=None):
 	}
 
 @register.inclusion_tag('includes/week.html', takes_context=True)
-def weekview(context, year=None, week=None, weekday=None, fragment= None):
-    year = year if year else datetime.today().year
-    week = week if week else datetime.today().isocalendar()[1]-1
+def weekview(context, year=None, week=None, weekday=None, fragment=None):
+    year = year if year else datetime.today().isocalendar()[0]
+    week = week if week else datetime.today().isocalendar()[1]
     weekday = weekday if weekday else datetime.today().weekday()
-    date = _date_from_string(str(year), '%Y', '1', '%w', str(week), '%W')
+
+    date = utils.tofirstdayinisoweek(year, week)
     date = datetime(*date.timetuple()[:3])
 
     program = period_program(date, date+timedelta(days=7))

panikweb/utils.py

+from datetime import datetime, timedelta
+
+def tofirstdayinisoweek(year, week):
+    # from http://stackoverflow.com/questions/5882405/get-date-from-iso-week-number-in-python
+    ret = datetime.strptime('%04d-%02d-1' % (year, week), '%Y-%W-%w')
+    if datetime(year, 1, 4).isoweekday() > 4:
+        ret -= timedelta(days=7)
+    return ret
+

panikweb/views.py

@@ -19,6 +19,8 @@ from emissions.models import Category, Emission, Episode, Diffusion, SoundFile,
 
 from emissions.utils import whatsonair, period_program
 
+from . import utils
+
 
 class EmissionMixin:
     def get_emission_context(self, emission, episode_ids=None):
@@ -109,19 +111,22 @@ class ProgramView(TemplateView):
     def get_context_data(self, year=None, week=None, **kwargs):
         context = super(ProgramView, self).get_context_data(**kwargs)
         context['sectionName'] = "Emissions"
-        schedules = Schedule.objects.select_related().order_by('datetime')
-        days = []
-        for day in range(7):
-            days.append({'schedules': [x for x in schedules if x.is_on_weekday(day+1)],
-                         'datetime': datetime(2007, 1, day+1)})
-        context['days'] = days
+
         context['weekday'] = datetime.today().weekday()
-        context['week'] = week = int(week) if week is not None else datetime.today().isocalendar()[1]-1
-        context['year'] = year = int(year) if year is not None else datetime.today().year
-        context['week_first_day'] = datetime.strptime(str(year)+' '+str(week)+' 1', '%Y %U %w')
-        context['week_last_day'] = context['week_first_day'] + timedelta(days=+6)
-        context['week_previous'] =  context['week_first_day'] + timedelta(days=-7)
-        context['week_next'] = context['week_last_day']
+
+        context['week'] = week = int(week) if week is not None else datetime.today().isocalendar()[1]
+        context['year'] = year = int(year) if year is not None else datetime.today().isocalendar()[0]
+        context['week_first_day'] = utils.tofirstdayinisoweek(year, week)
+        context['week_last_day'] = context['week_first_day'] + timedelta(days=6)
+
+        previous_week = context['week_first_day'] - timedelta(days=7)
+        context['previous_week_no'] = previous_week.isocalendar()[1]
+        context['previous_week_year'] = previous_week.isocalendar()[0]
+
+        next_week = context['week_first_day'] + timedelta(days=7)
+        context['next_week_no'] = next_week.isocalendar()[1]
+        context['next_week_year'] = next_week.isocalendar()[0]
+
         return context
 
 program = ProgramView.as_view()

panikweb_templates/templates/program.html

@@ -8,10 +8,10 @@
 	<div class="program ">
 		<nav class="center">
 			<ul class="custom distributed">
-				{% if week_previous %}
+				{% if previous_week_no %}
 				<li>
 					<a 
-						href="{% url 'program_week' year=week_previous|date:"Y" week=week_previous|date:"W" %}" 
+						href="{% url 'program_week' year=previous_week_year week=previous_week_no %}" 
 						class="icon-chevron-sign-left"
 						></a>
 				</li>
@@ -19,7 +19,7 @@
 				<li>Du {{week_first_day|date:"l j N"}} au {{week_last_day|date:"l j N"}}</li>
 				<li>
 					<a 
-						href="{% url 'program_week' year=week_last_day|date:"Y" week=week_last_day|date:"W" %}" 
+						href="{% url 'program_week' year=next_week_year week=next_week_no %}" 
 						class="icon-chevron-sign-right"
 						></a>
 				</li>