on ajoute la semaine au début de la ligne dans la vue par mois

src/agenda_culturel/static/style.scss

@@ -177,6 +177,21 @@ footer {
     .infos-and-buttons .buttons {
         flex: auto;
     }
+
+    .grid.week-in-month {
+        grid-template-columns: 2.5em repeat(auto-fit, minmax(0%, 1fr));
+        margin-bottom: .5em;
+      }
+    .entete-semaine {
+        text-orientation: upright;
+        writing-mode: sideways-lr;
+        background: rgba(0, 137, 137, 0.2);
+        padding: 1em 0;
+        h2 {
+            margin: 0;
+        }
+    }
+
 }
 
 article.day {

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

@@ -8,7 +8,7 @@
 
 <article class="day{{ day|calendar_classes:fixed_style }}" id="{{ daytag }}">
     <header>
-    <h2><a href="{{ day.date | url_day }}?{{ filter.get_url }}">{{ day.date | date:"l j" }}</a></h2>
+    <{% if headers %}{{ headers }}{% else %}h2{% endif %}><a href="{{ day.date | url_day }}?{{ filter.get_url }}">{{ day.date | date:"l j" }}</a></{% if headers %}{{ headers }}{% else %}h2{% endif %}>
     </header>
     {% if day.events %}
     {% if resume %}

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

@@ -45,10 +45,13 @@
         </div>
     </header>
     <div id="calendar">
-        <div class="grid">
+        <div class="grid week-in-month">
         {% for d in calendar.calendar_days_list %}
-        {% if forloop.counter0|divisibleby:7 and not forloop.first %}</div><div class="grid">{% endif %}
-        {% include "agenda_culturel/day-inc.html" with day=d resume=1 fixed_style=calendar.all_in_past filter=filter %}
+        {% if forloop.counter0|divisibleby:7 %}
+            {% if not forloop.first %}</div><div class="grid week-in-month">{% endif %}
+                <div class="entete-semaine"><h2><a href="{% url 'week_view' calendar.month d.week %}?{{ filter.get_url }}">Semaine {{ d.week }}</a></h2></div>
+                {% endif %}
+        {% include "agenda_culturel/day-inc.html" with day=d resume=1 fixed_style=calendar.all_in_past filter=filter headers="h3" %}
         {% endfor %}
         </div>
     </div>

src/agenda_culturel/views.py

@@ -41,6 +41,7 @@ class CalendarDay:
     def __init__(self, d, on_requested_interval = True):
         self.date = d
         now = date.today()
+        self.week = d.isocalendar()[1]
 
         self.in_past = d < now
         self.today = d == now