On supprime la navigation vers les pages 1 an avant maintenant et 1 an après maintenant

src/agenda_culturel/calendar.py

@@ -3,7 +3,6 @@ import calendar
 from django.db.models import Q
 from django.utils import timezone
 
-
 import logging
 
 logger = logging.getLogger(__name__)

src/agenda_culturel/templates/agenda_culturel/page-day.html

@@ -38,19 +38,27 @@
                 <header>
                     <div class="title"><h1>{{ day | date:"l j F Y"|frdate }}</h1></div>
                     <div class="navigation">
+                        {% if day|shift_day:-1|not_before_first %}
+                        {% if day|not_after_last %}
                             <div>
                             {% with day|shift_day:-1 as pred_day %}
                             <a role="button" href="{% url 'day_view' pred_day.year pred_day.month pred_day.day %}?{{ filter.get_url }}">
                                 {% picto_from_name "chevron-left" %} précédent</a>
                             {% endwith %}
                             </div>
+                        {% endif %}
+                        {% endif %}
+                        {% if day|shift_day:-1|not_before_first %}
+                        {% if day|not_after_last %}
                             <div class="right">
                             {% with day|shift_day:1 as next_day %}
                             <a role="button" href="{% url 'day_view' next_day.year next_day.month next_day.day %}?{{ filter.get_url }}">suivant 
                                 {% picto_from_name "chevron-right" %}
                             </a>
                         {% endwith %}
+                        {% endif %}
                         </div>
+                        {% endif %}
                     </div>
                 </header>
         </article>

src/agenda_culturel/templates/agenda_culturel/page-month.html

@@ -35,14 +35,22 @@
         <div class="title"><h1>{{ calendar.firstdate | date:"F o" }}</h1></div>
         <div class="navigation">
             <div>
+            {% if calendar.firstdate|shift_day:-1|not_before_first %}
+            {% if calendar.lastdate|not_after_last %}
             <a role="button" href="{% url 'month_view' calendar.previous_month.year calendar.previous_month.month %}?{{ filter.get_url }}">
                 {% picto_from_name "chevron-left" %} précédent</a>
             </div>
+            {% endif %}
+            {% endif %}
+            {% if calendar.lastdate|shift_day:+1|not_after_last %}
+            {% if calendar.lastdate|not_before_first %}
             <div class="right">
                 <a role="button" href="{% url 'month_view' calendar.next_month.year calendar.next_month.month %}?{{ filter.get_url }}">suivant 
                 {% picto_from_name "chevron-right" %}
             </a>
             </div>
+            {% endif %}
+            {% endif %}
         </div>
     </header>
     <div id="calendar">

src/agenda_culturel/templates/agenda_culturel/page-week.html

@@ -31,14 +31,22 @@
         <div class="title"><h1>Semaine du {{ calendar.calendar_days_list.0.date |date|frdate }}</h1></div>
         <div class="navigation">
             <div>
+            {% if calendar.firstdate|shift_day:-1|not_before_first %}
+            {% if calendar.lastdate|not_after_last %}
                     <a role="button" href="{% url 'week_view' calendar.previous_week.year calendar.previous_week|week %}?{{ filter.get_url }}">
                 {% picto_from_name "chevron-left" %} précédente</a>
+            {% endif %}
+            {% endif %}
             </div>
+            {% if calendar.lastdate|shift_day:+1|not_after_last %}
+            {% if calendar.lastdate|not_before_first %}
             <div class="right">
             <a role="button" href="{% url 'week_view' calendar.next_week.year calendar.next_week|week %}?{{ filter.get_url }}">suivante 
                 {% picto_from_name "chevron-right" %}
             </a>
             </div>
+            {% endif %}
+            {% endif %}
         </div>
     </header>
     <div id="calendar">

src/agenda_culturel/templatetags/utils_extra.py

@@ -3,7 +3,8 @@ from django.utils.safestring import mark_safe
 from django.template.defaultfilters import stringfilter
 
 from urllib.parse import urlparse
-from datetime import timedelta, date
+from datetime import timedelta, date, datetime
+from dateutil.relativedelta import relativedelta
 from django.urls import reverse_lazy
 from django.templatetags.static import static
 from string import ascii_uppercase as auc
@@ -27,6 +28,14 @@ def week(d):
     return d.isocalendar()[1]
 
 
+@register.filter
+def not_before_first(d):
+    return d >= datetime.now().date() - relativedelta(years=1)
+
+@register.filter
+def not_after_last(d):
+    return d <= datetime.now().date() + relativedelta(years=1)
+
 @register.filter
 def shift_day(d, shift):
     return d + timedelta(days=shift)