Feat: Wiederkehrende Trainingsevents

Fügt die Funktionalität hinzu, wiederkehrende Trainingsevents zu erstellen,
zu verwalten und zu löschen. Ein Coach kann nun ein Training erstellen,
das sich alle X Tage bis zu einem bestimmten Enddatum wiederholt.

Wesentliche Änderungen:
- **Datenmodell ():** Das -Modell wurde um Felder
  für die Wiederholung (, ,
  ) und zur Gruppierung von Serien ()
  erweitert.
- **Formulare ():** Das Formular zur Erstellung von Trainings
  wurde um die neuen Wiederholungsoptionen erweitert.
- **Views:**
    - : Die Logik wurde erweitert, um beim Speichern
      eines wiederkehrenden Events automatisch alle zukünftigen Instanzen
      der Serie zu erstellen.
    - : Bietet nun die Möglichkeit, entweder nur ein
      einzelnes Event einer Serie oder die gesamte Serie zu löschen.
- **Templates:**
    - : Enthält jetzt die neuen Formularfelder mit
      JavaScript, um die Wiederholungsoptionen dynamisch ein- und
      auszublenden.
    - : Zeigt eine Auswahlmöglichkeit für den
      Löschumfang an, wenn das Event Teil einer Serie ist.
- **Migration:** Eine neue Datenbankmigration wurde erstellt, um die
  Änderungen am -Modell anzuwenden.

calendars/forms.py

@@ -12,9 +12,14 @@ class EventForm(forms.ModelForm):
 class TrainingForm(forms.ModelForm):
     start_time = forms.DateTimeField(input_formats=['%d.%m.%Y %H:%M', '%Y-%m-%dT%H:%M'], widget=forms.DateTimeInput(format='%d.%m.%Y %H:%M', attrs={'type': 'datetime-local'}))
     end_time = forms.DateTimeField(input_formats=['%d.%m.%Y %H:%M', '%Y-%m-%dT%H:%M'], widget=forms.DateTimeInput(format='%d.%m.%Y %H:%M', attrs={'type': 'datetime-local'}), required=False)
+    is_recurring = forms.BooleanField(required=False, widget=forms.CheckboxInput(attrs={'class': 'form-check-input'}))
+    recurrence_interval = forms.IntegerField(required=False, min_value=1, widget=forms.NumberInput(attrs={'class': 'form-control'}), help_text="Repeat every X days.")
+    recurrence_end_date = forms.DateField(required=False, widget=forms.DateInput(attrs={'class': 'form-control', 'type': 'date'}))
+
     class Meta:
         model = Training
-        fields = ['title', 'description', 'start_time', 'end_time', 'location_address', 'team']
+        fields = ['title', 'description', 'start_time', 'end_time', 'location_address', 'team', 'is_recurring', 'recurrence_interval', 'recurrence_end_date']
+
 
 class GameForm(forms.ModelForm):
     start_time = forms.DateTimeField(input_formats=['%d.%m.%Y %H:%M', '%Y-%m-%dT%H:%M'], widget=forms.DateTimeInput(format='%d.%m.%Y %H:%M', attrs={'type': 'datetime-local'}))

calendars/migrations/0006_event_is_recurring_event_parent_event_and_more.py

@@ -0,0 +1,34 @@
+# Generated by Django 5.2.6 on 2025-11-22 09:00
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('calendars', '0005_game_number_of_innings_and_more'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='event',
+            name='is_recurring',
+            field=models.BooleanField(default=False),
+        ),
+        migrations.AddField(
+            model_name='event',
+            name='parent_event',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='child_events', to='calendars.event'),
+        ),
+        migrations.AddField(
+            model_name='event',
+            name='recurrence_end_date',
+            field=models.DateField(blank=True, null=True),
+        ),
+        migrations.AddField(
+            model_name='event',
+            name='recurrence_interval',
+            field=models.PositiveIntegerField(blank=True, help_text='In days', null=True),
+        ),
+    ]

calendars/models.py

@@ -10,6 +10,12 @@ class Event(models.Model):
     location_address = models.CharField(max_length=255)
     maps_shortlink = models.URLField(blank=True, editable=False)
     team = models.ForeignKey('clubs.Team', on_delete=models.CASCADE, related_name='events')
+    
+    # Fields for recurring events
+    is_recurring = models.BooleanField(default=False)
+    recurrence_interval = models.PositiveIntegerField(null=True, blank=True, help_text="In days")
+    recurrence_end_date = models.DateField(null=True, blank=True)
+    parent_event = models.ForeignKey('self', on_delete=models.SET_NULL, null=True, blank=True, related_name='child_events')
 
     def save(self, *args, **kwargs):
         if self.location_address and not self.maps_shortlink:

calendars/templates/calendars/event_confirm_delete.html

@@ -8,9 +8,28 @@
                 <h2>Delete Event</h2>
             </div>
             <div class="card-body">
-                <p>Are you sure you want to delete "{{ object.title }}"?</p>
+                <p>Are you sure you want to delete the event: <strong>"{{ object.title }}"</strong> on <strong>{{ object.start_time|date:"d.m.Y" }}</strong>?</p>
                 <form method="post">
                     {% csrf_token %}
+
+                    {% if is_series %}
+                        <fieldset class="mb-3">
+                            <legend class="h6">Deletion Scope</legend>
+                            <div class="form-check">
+                                <input class="form-check-input" type="radio" name="delete_scope" id="delete_one" value="one" checked>
+                                <label class="form-check-label" for="delete_one">
+                                    Delete only this event
+                                </label>
+                            </div>
+                            <div class="form-check">
+                                <input class="form-check-input" type="radio" name="delete_scope" id="delete_all" value="all">
+                                <label class="form-check-label" for="delete_all">
+                                    Delete the entire series
+                                </label>
+                            </div>
+                        </fieldset>
+                    {% endif %}
+
                     <button type="submit" class="btn btn-danger">Confirm Delete</button>
                     <a href="{% url 'dashboard' %}" class="btn btn-secondary">Cancel</a>
                 </form>

calendars/templates/calendars/event_form.html

@@ -1,40 +1,83 @@
 {% extends "base.html" %}
-{% load l10n %}
 
 {% block content %}
 <div class="row justify-content-center">
-    <div class="col-md-6">
+    <div class="col-md-8">
         <div class="card">
             <div class="card-header">
-                <h2>{% if object %}Edit Event{% else %}Create Event{% endif %}</h2>
+                <h2>{% if object %}Edit Event{% else %}Create Training{% endif %}</h2>
             </div>
             <div class="card-body">
                 <form method="post">
                     {% csrf_token %}
                     
-                    {% for field in form %}
+                    <!-- Standard Fields -->
-                        <div class="mb-3">
+                    <div class="mb-3">{{ form.title.label_tag }} {{ form.title }}</div>
-                            <label for="{{ field.id_for_label }}" class="form-label">{{ field.label }}</label>
+                    <div class="mb-3">{{ form.description.label_tag }} {{ form.description }}</div>
-                            {% if object and field.name == 'start_time' %}
+                    <div class="row">
-                                <p>Current: {{ object.start_time|localize }}</p>
+                        <div class="col-md-6 mb-3">{{ form.start_time.label_tag }} {{ form.start_time }}</div>
-                            {% endif %}
+                        <div class="col-md-6 mb-3">{{ form.end_time.label_tag }} {{ form.end_time }}</div>
-                            {% if object and field.name == 'end_time' %}
+                    </div>
-                                <p>Current: {{ object.end_time|localize }}</p>
+                    <div class="mb-3">{{ form.location_address.label_tag }} {{ form.location_address }}</div>
-                            {% endif %}
+                    <div class="mb-3">{{ form.team.label_tag }} {{ form.team }}</div>
-                            {{ field }}
+
-                            {% if field.help_text %}
+                    <!-- Recurrence Fields -->
-                                <small class="form-text text-muted">{{ field.help_text }}</small>
+                    {% if 'is_recurring' in form.fields %}
-                            {% endif %}
+                        <hr>
-                            {% for error in field.errors %}
+                        <div class="form-check mb-3">
-                                <div class="alert alert-danger">{{ error }}</div>
+                            {{ form.is_recurring }}
-                            {% endfor %}
+                            <label class="form-check-label" for="{{ form.is_recurring.id_for_label }}">{{ form.is_recurring.label }}</label>
                         </div>
-                    {% endfor %}
+
+                        <div id="recurrence-options" style="display: none;">
+                            <div class="row">
+                                <div class="col-md-6 mb-3">
+                                    {{ form.recurrence_interval.label_tag }}
+                                    {{ form.recurrence_interval }}
+                                    <small class="form-text text-muted">{{ form.recurrence_interval.help_text }}</small>
+                                </div>
+                                <div class="col-md-6 mb-3">
+                                    {{ form.recurrence_end_date.label_tag }}
+                                    {{ form.recurrence_end_date }}
+                                </div>
+                            </div>
+                        </div>
+                    {% endif %}
                     
+                    {% for error in form.non_field_errors %}
+                        <div class="alert alert-danger">{{ error }}</div>
+                    {% endfor %}
+
                     <button type="submit" class="btn btn-primary">Save</button>
+                    <a href="{% url 'dashboard' %}" class="btn btn-secondary">Cancel</a>
                 </form>
             </div>
         </div>
     </div>
 </div>
 {% endblock %}
+
+{% block javascript %}
+<script>
+document.addEventListener('DOMContentLoaded', function() {
+    const recurringCheckbox = document.getElementById('{{ form.is_recurring.id_for_label }}');
+    const recurrenceOptions = document.getElementById('recurrence-options');
+
+    function toggleRecurrenceOptions() {
+        if (recurringCheckbox.checked) {
+            recurrenceOptions.style.display = 'block';
+        } else {
+            recurrenceOptions.style.display = 'none';
+        }
+    }
+
+    if (recurringCheckbox) {
+        // Set initial state on page load
+        toggleRecurrenceOptions();
+        
+        // Add event listener
+        recurringCheckbox.addEventListener('change', toggleRecurrenceOptions);
+    }
+});
+</script>
+{% endblock %}

calendars/views.py

@@ -65,6 +65,38 @@ class TrainingCreateView(LoginRequiredMixin, ManageableTeamsMixin, CreateView):
     template_name = 'calendars/event_form.html'
     success_url = reverse_lazy('dashboard')
 
+    def form_valid(self, form):
+        is_recurring = form.cleaned_data.get('is_recurring')
+        interval = form.cleaned_data.get('recurrence_interval')
+        end_date = form.cleaned_data.get('recurrence_end_date')
+
+        if is_recurring and interval and end_date:
+            # Save the first event, which will be the parent
+            self.object = form.save()
+            
+            # Get details from the parent event
+            start_time = self.object.start_time
+            duration = self.object.end_time - start_time if self.object.end_time else datetime.timedelta(hours=1)
+            
+            current_start_time = start_time + datetime.timedelta(days=interval)
+            
+            while current_start_time.date() <= end_date:
+                Training.objects.create(
+                    title=self.object.title,
+                    description=self.object.description,
+                    start_time=current_start_time,
+                    end_time=current_start_time + duration,
+                    location_address=self.object.location_address,
+                    team=self.object.team,
+                    parent_event=self.object,
+                    is_recurring=False # Child events are not themselves recurring
+                )
+                current_start_time += datetime.timedelta(days=interval)
+            
+            return redirect(self.get_success_url())
+        else:
+            return super().form_valid(form)
+
 class GameCreateView(LoginRequiredMixin, ManageableTeamsMixin, CreateView):
     model = Game
     form_class = GameForm
@@ -98,6 +130,29 @@ class EventDeleteView(LoginRequiredMixin, CoachCheckMixin, DeleteView):
     template_name = 'calendars/event_confirm_delete.html'
     success_url = reverse_lazy('dashboard')
 
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        # An event is part of a series if it has a parent or is a parent
+        context['is_series'] = self.object.parent_event is not None or self.object.child_events.exists()
+        return context
+
+    def post(self, request, *args, **kwargs):
+        self.object = self.get_object()
+        delete_scope = request.POST.get('delete_scope')
+
+        if delete_scope == 'all':
+            # Identify the parent of the series
+            parent = self.object.parent_event if self.object.parent_event else self.object
+            
+            # Delete all children and the parent itself
+            parent.child_events.all().delete()
+            parent.delete()
+            
+            return redirect(self.success_url)
+        else:
+            # Default behavior: delete only the single event
+            return super().post(request, *args, **kwargs)
+
 @login_required
 def manage_participation(request, child_id, event_id, status):
     child = get_object_or_404(CustomUser, id=child_id)