Merge branch 'issue19' into 'master'

Add prev and next button for week view. Closes #19.

Closes #19

See merge request Teckids/BiscuIT/BiscuIT-App-Alsijil!5

biscuit/apps/alsijil/templates/alsijil/group_week.html

@@ -6,7 +6,7 @@
 {% block bootstrap4_title %}{% blocktrans%}Current week{% endblocktrans %} — {{ block.super }}{% endblock %}
 
 {% block page_title %}
-  {% blocktrans %}Current week{% endblocktrans %}
+  {% blocktrans %}Week{% endblocktrans %} {{ week }} ({{ week|week_start }} - {{ week|week_end }}), {{ group.name }}
 {% endblock %}
 
 {% block content %}
@@ -22,9 +22,15 @@
       <div class="col-md-7">
         <div class="card">
           <div class="card-header bg-light text-dark">
-            {% blocktrans %}Week{% endblocktrans %}
-            {{ week }} ({{ week|week_start }} - {{ week|week_end }}),
-            {{ group.name }}
+            {% blocktrans %}Lessons{% endblocktrans %}
+            <div class="btn-group" role="group" aria-label="Week actions">
+              <a href="{% url 'group_week_by_week' week_prev %}" class="btn btn-secondary">
+                {% fa 'arrow-left' %}
+              </a>
+              <a href="{% url 'group_week_by_week' week_next %}" class="btn btn-secondary">
+                {% fa 'arrow-right' %}
+              </a>
+            </div>
           </div>
           <div class="card-body">
             {% regroup lesson_periods by period.get_weekday_display as periods_by_day %}

biscuit/apps/alsijil/views.py

@@ -147,6 +147,8 @@ def group_week(request: HttpRequest, week: Optional[int] = None) -> HttpResponse
     select_form = SelectForm(request.GET or None)
 
     context['week'] = wanted_week
+    context['week_next'] = wanted_week + 1
+    context['week_prev'] = wanted_week - 1
     context['group'] = group
     context['lesson_periods'] = lesson_periods
     context['persons'] = persons