[ADD] Bookings date editing

pms/forms.py

@@ -56,3 +56,13 @@ class Meta:
             'total': forms.HiddenInput(),
             'state': forms.HiddenInput(),
         }
+
+class EditBookingDatesForm(forms.ModelForm):
+    class Meta:
+        model = Booking
+        fields = ['checkin','checkout']
+        widgets = {
+            'checkin': forms.DateInput(attrs={'type': 'date', 'class':'form-control'}),
+            'checkout': forms.DateInput(attrs={'type': 'date', 'class':'form-control'})
+        }
+

pms/templates/edit_booking_date.html

@@ -0,0 +1,15 @@
+{% extends "main.html"%} {% block content %}
+<h1>Editar fecha de la reserva: {{ booking.code }}</h1>
+<div class="card card-body mt-3">
+  {% if messages %} {% for message in messages %}
+  <div class="alert alert-danger">{{message}}</div>
+  {% endfor %} {% endif %}
+
+  <form method="POST">
+    {% csrf_token %} {{ form.as_p }}
+    <button type="submit" class="btn btn-primary">Guardar</button>
+    <a href="{% url 'home' %}" class="btn btn-secondary">Cancelar</a>
+  </form>
+</div>
+
+{% endblock content%}

pms/templates/home.html

@@ -68,7 +68,7 @@ <h3>Reservas Realizadas</h3>
                     <a href="{% url 'edit_booking' pk=booking.id%} " >Editar datos de contacto</a>
                 </div>
                 <div class="col">
-
+                    <a href="{% url 'edit_booking_date' pk=booking.id%} " >Editar fecha de la reserva</a>
                 </div>
                 <div class="col">
 

pms/tests.py

@@ -1,3 +1,65 @@
-from django.test import TestCase
+from django.test import TestCase, override_settings
+from django.urls import reverse
+from .models import Room, Room_type, Booking, Customer
+import datetime
 
 # Create your tests here.
+
+@override_settings(STATICFILES_STORAGE='django.contrib.staticfiles.storage.StaticFilesStorage')
+class EditBookingDatesTest(TestCase):
+    def setUp(self):
+        self.room_type = Room_type.objects.create(name='Simple', price=20, max_guests=1)
+        self.room = Room.objects.create(room_type=self.room_type, name='Room 7.1', description='descripcion')
+        self.customer = Customer.objects.create(name="Cliente1", email="cliente1@test.com", phone="123123123")
+
+        self.booking1 = Booking.objects.create(
+            state='NEW',
+            checkin=datetime.date(2026, 7, 10),
+            checkout=datetime.date(2026, 7, 12),
+            room=self.room,
+            guests=1,
+            customer=self.customer,
+            total=40,
+            code='B1'
+        )
+
+        self.booking2 = Booking.objects.create(
+            state='NEW',
+            checkin=datetime.date(2026, 7, 15),
+            checkout=datetime.date(2026, 7, 20),
+            room=self.room,
+            guests=1,
+            customer=self.customer,
+            total=100,
+            code='B2'
+        )
+
+    """Valida que se realiza el cambio de fecha correctamente."""
+    def test_succesful_date_change(self):
+        url = reverse('edit_booking_date', kwargs={'pk': self.booking2.id})
+
+        data = {
+            'checkin': '2026-12-26',
+            'checkout': '2026-12-30'
+        }
+
+        response = self.client.post(url, data)
+
+        self.booking2.refresh_from_db()
+        self.assertEqual(self.booking2.checkin, datetime.date(2026, 12, 26))
+        self.assertRedirects(response, reverse('home'))
+
+    """Valida que si se solapan las fechas con otra reserva, de error."""
+    def test_overlap_validation_error(self):
+        url = reverse('edit_booking_date', kwargs={'pk': self.booking2.id})
+
+        data = {
+            'checkin': '2026-7-11',
+            'checkout': '2026-7-15'
+        }
+
+        response = self.client.post(url, data)
+        self.assertContains(response, "No hay disponibilidad para las fechas seleccionadas.")
+        self.booking2.refresh_from_db()
+        self.assertEqual(self.booking2.checkin, datetime.date(2026, 7, 15))
+

pms/urls.py

@@ -11,5 +11,6 @@
     path("booking/<str:pk>/delete", views.DeleteBookingView.as_view(), name="delete_booking"),
     path("rooms/", views.RoomsView.as_view(), name="rooms"),
     path("room/<str:pk>/", views.RoomDetailsView.as_view(), name="room_details"),
-    path("dashboard/", views.DashboardView.as_view(), name="dashboard")
+    path("dashboard/", views.DashboardView.as_view(), name="dashboard"),
+    path("booking/<str:pk>/edit-dates/", views.EditBookingDatesView.as_view(), name="edit_booking_date")
 ]

pms/views.py

@@ -1,8 +1,9 @@
 from django.db.models import F, Q, Count, Sum
-from django.shortcuts import render, redirect
+from django.shortcuts import render, redirect, get_object_or_404
 from django.utils.decorators import method_decorator
 from django.views import View
 from django.views.decorators.csrf import ensure_csrf_cookie
+from django.contrib import messages
 
 from .form_dates import Ymd
 from .forms import *
@@ -244,3 +245,32 @@ def get(self, request):
             'rooms': rooms
         }
         return render(request, "rooms.html", context)
+
+
+class EditBookingDatesView(View):
+    def get(self, request, pk):
+        booking = get_object_or_404(Booking, id=pk)
+        form = EditBookingDatesForm(prefix="booking", instance=booking)
+        return render(request, "edit_booking_date.html", {'form': form, 'booking': booking})
+
+    def post(self, request, pk):
+        booking = get_object_or_404(Booking, id=pk)
+        form = EditBookingDatesForm(request.POST, instance=booking)
+
+        if form.is_valid():
+            new_checkin = form.cleaned_data['checkin']
+            new_checkout = form.cleaned_data['checkout']
+
+            overlap = Booking.objects.filter(
+                room=booking.room, state='NEW'
+                ).exclude(id=pk).filter(Q(checkin__lt=new_checkout, checkout__gt=new_checkin)
+                ).exists()
+
+            if overlap:
+                messages.error(request, "No hay disponibilidad para las fechas seleccionadas.")
+                return render(request, "edit_booking_date.html", {'form': form, 'booking': booking})
+
+            form.save()
+            return redirect("home")
+
+        return render(request, "edit_booking_date.html", {'form': form, 'booking': booking})