fix: sending mail; add email host user and pwd for authentication

Readme.md

@@ -96,6 +96,8 @@ docker build -t django-nginx-image -f nginx/Dockerfile ./nginx
 
 ### Start docker container
 
+Add email password for 'Verleih' account to EMAIL_HOST_PASSWORD in the docker compose file!
+
 Build the docker containers:
 
 ```bash

docker-compose.yml

@@ -25,6 +25,8 @@ services:
       MYSQL_USER: "user"
       MYSQL_PASSWORD: "hgu"
       ETHERPAD_GROUP: "g.snlbqn7S6ksRbom3"
+      EMAIL_HOST_USER: "verleih@fet.at"
+      EMAIL_HOST_PASSWORD: ""
     depends_on:
       mysql:
         condition: service_healthy

fet2020/fet2020/settings.py

@@ -18,6 +18,8 @@ env = environ.Env(
     ETHERPAD_GROUP=(str, ""),
     GALLERY_PATH=(str, "uploads/gallery"),
     MC_MASTERPASSWORD=(str, ""),
+    EMAIL_HOST_USER=(str, ""),
+    EMAIL_HOST_PASSWORD=(str, ""),
 )
 
 # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
@@ -103,6 +105,8 @@ else:
 EMAIL_BACKEND = "django.core.mail.backends.smtp.EmailBackend"
 EMAIL_HOST = "buran.htu.tuwien.ac.at"
 EMAIL_PORT = 587
+EMAIL_HOST_USER = env("EMAIL_HOST_USER")
+EMAIL_HOST_PASSWORD = env("EMAIL_HOST_PASSWORD")
 EMAIL_USE_TLS = True
 
 

fet2020/rental/admin.py

@@ -42,7 +42,7 @@ class RentalAdmin(admin.ModelAdmin):
                     ("date_start", "date_end"),
                     "reason",
                     "rentalitems",
-                    "total_disposit",
+                    ("total_disposit", "intern"),
                 ),
             },
         ),
@@ -93,13 +93,10 @@ class RentalAdmin(admin.ModelAdmin):
         obj.author = request.user
         super().save_model(request, obj, form, change)
 
-    @admin.display(description="Kaution (EUR)")
+    @admin.display(description="Kaution insgesamt")
     def total_disposit(self, obj):
-        total_disposit = 0
-        for elem in obj.rentalitems.all():
-            total_disposit += elem.deposit
-
-        return f"{total_disposit}"
+        total_disposit = obj.calc_total_deposit()
+        return f"{total_disposit} €"
 
 
 @admin.register(RentalItem)

fet2020/rental/mails.py

@@ -1,28 +1,28 @@
 import logging
 
+from django.conf import settings
 from django.core.mail import EmailMessage
 
-RENTAL_EMAIL = "verleih@fet.at"
+RENTAL_EMAIL = settings.EMAIL_HOST_USER
 logger = logging.getLogger(__name__)
 
 
 def send_mail_approved(obj):
     subject = f"FET-Verleih #{obj.id}: {obj.get_status_display()}"
-
-    total_deposit = 0
-    for rentalitem in obj.rentalitems.all():
-        total_deposit += rentalitem.deposit
+    total_deposit = obj.calc_total_deposit()
 
     message = (
-        f"Hallo {obj.firstname},\n"
+        f"Hallo {obj.firstname},\n\n"
         f"deine Verleihanfrage mit der Nummer #{obj.id} wurde erfolgreich genehmigt. Die "
         f"Gegenstände können am {obj.date_start.strftime('%d.%m.%Y')} während der Beratungszeit "
-        "(Montag - Donnerstag: 09:00 - 14:00, Freitag: 09:00 - 12:00) abgeholt werden. Bitte bring "
-        f"den Gesamtpfand in Höhe von {total_deposit} € in bar mit.\n"
-        "Liebe Grüße,\n"
-        "das Verleih-Team"
+        "(Montag - Donnerstag: 09:00 - 14:00, Freitag: 09:00 - 12:00) abgeholt werden.\n"
     )
 
+    if total_deposit > 0:
+        message += f"Bitte bring den Gesamtpfand in Höhe von {total_deposit} € in bar mit.\n"
+
+    message += "\nLiebe Grüße,\ndas Verleih-Team"
+
     email = EmailMessage(
         subject, message, from_email=RENTAL_EMAIL, to=[obj.email], cc=[RENTAL_EMAIL]
     )
@@ -30,15 +30,15 @@ def send_mail_approved(obj):
     try:
         email.send()
     except Exception as exc:
-        logger.error("Failed to send approval email for rental #%s. Error: %s", obj.id, exc)
+        logger.info("Failed to send approval email for rental #%s. Error: %s", obj.id, exc)
 
 
 def send_mail_rejected(obj):
     subject = f"FET-Verleih #{obj.id}: {obj.get_status_display()}"
 
     message = (
-        f"Hallo {obj.firstname},\n"
-        f"deine Verleihanfrage mit der Nummer #{obj.id} wurde abgelehnt.\n"
+        f"Hallo {obj.firstname},\n\n"
+        f"deine Verleihanfrage mit der Nummer #{obj.id} wurde abgelehnt.\n\n"
         "Liebe Grüße,\n"
         "das Verleih-Team"
     )
@@ -50,4 +50,4 @@ def send_mail_rejected(obj):
     try:
         email.send()
     except Exception as exc:
-        logger.error("Failed to send rejection email for rental #%s. Error: %s", obj.id, exc)
+        logger.info("Failed to send rejection email for rental #%s. Error: %s", obj.id, exc)

fet2020/rental/managers.py

@@ -0,0 +1,6 @@
+from django.db import models
+
+
+class RentalItemsManager(models.Manager):
+    def get_queryset(self):
+        return super().get_queryset().order_by("name")

fet2020/rental/migrations/0001_initial.py

@@ -0,0 +1,55 @@
+# Generated by Django 5.2.7 on 2025-10-30 12:05
+
+import django.core.validators
+import rental.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='RentalItem',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=128, verbose_name='Name')),
+                ('description', models.CharField(blank=True, default='', max_length=128, verbose_name='Beschreibung')),
+                ('deposit', models.DecimalField(decimal_places=2, default=0, max_digits=6, verbose_name='Kaution (EUR)')),
+                ('image', models.ImageField(blank=True, null=True, upload_to='rentalitems', verbose_name='Bild')),
+                ('induction', models.BooleanField(default=False, verbose_name='Einschulung notwendig')),
+                ('location', models.CharField(blank=True, default='', max_length=128, verbose_name='Standort')),
+            ],
+            options={
+                'verbose_name': 'Verleihgegenstand',
+                'verbose_name_plural': 'Verleihgegenstände',
+            },
+        ),
+        migrations.CreateModel(
+            name='Rental',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('firstname', models.CharField(max_length=128, verbose_name='Vorname')),
+                ('surname', models.CharField(max_length=128, verbose_name='Nachname')),
+                ('matriculation_number', models.CharField(max_length=8, verbose_name='Matrikelnummer')),
+                ('email', models.EmailField(max_length=254, verbose_name='E-Mail')),
+                ('phone', models.CharField(max_length=32, validators=[rental.validators.PhoneNumberValidator()], verbose_name='Telefonnummer')),
+                ('organization', models.CharField(max_length=128, verbose_name='Organisation')),
+                ('date_start', models.DateField(verbose_name='Abholdatum')),
+                ('date_end', models.DateField(verbose_name='Rückgabedatum')),
+                ('reason', models.TextField(max_length=500, verbose_name='Grund der Ausleihe')),
+                ('comment', models.TextField(blank=True, default='', max_length=500, verbose_name='Kommentar')),
+                ('file_field', models.FileField(blank=True, null=True, upload_to='uploads/rental/rental/', validators=[django.core.validators.FileExtensionValidator(['pdf'])], verbose_name='Verleihformular')),
+                ('status', models.CharField(choices=[('S', 'Eingereicht'), ('A', 'Verleih genehmigt'), ('J', 'Verleih abgelehnt'), ('I', 'Verleihgegenstände ausgegeben'), ('R', 'Verleihgegenstände zurückgegeben')], default='S', max_length=1, verbose_name='Status')),
+                ('rentalitems', models.ManyToManyField(to='rental.rentalitem', verbose_name='Verleihgegenstände')),
+            ],
+            options={
+                'verbose_name': 'Verleih',
+                'verbose_name_plural': 'Verleih',
+            },
+        ),
+    ]

fet2020/rental/models.py

@@ -3,6 +3,7 @@ from django.db import models
 from django.forms import ValidationError
 
 from .mails import send_mail_approved, send_mail_rejected
+from .managers import RentalItemsManager
 from .validators import PhoneNumberValidator
 
 
@@ -22,6 +23,8 @@ class RentalItem(models.Model):
 
     location = models.CharField(verbose_name="Standort", max_length=128, blank=True, default="")
 
+    objects = RentalItemsManager()
+
     class Meta:
         verbose_name = "Verleihgegenstand"
         verbose_name_plural = "Verleihgegenstände"
@@ -41,6 +44,7 @@ class Rental(models.Model):
     )
 
     organization = models.CharField(verbose_name="Organisation", max_length=128)
+    intern = models.BooleanField(verbose_name="Interner Verleih", default=False)
 
     date_start = models.DateField(verbose_name="Abholdatum")
     date_end = models.DateField(verbose_name="Rückgabedatum")
@@ -107,3 +111,12 @@ class Rental(models.Model):
 
         if self.date_start > self.date_end:
             raise ValidationError("Das Abholdatum muss vor dem Rückgabedatum liegen.")
+
+    def calc_total_deposit(self) -> int:
+        total_deposit = 0
+
+        if not self.intern:
+            for item in self.rentalitems.all():
+                total_deposit += item.deposit
+
+        return total_deposit

fet2020/rental/urls.py

@@ -10,7 +10,7 @@ urlpatterns = [
     path("overview/", RentalListView.as_view(), name="index"),
     path("request-rental/", RentalCreateView.as_view(), name="rental_create"),
     path(
-        "request-rental/<int:pk>/done/",
+        "request-rental/done/",
         RentalCreateDoneView.as_view(),
         name="rental_create_done",
     ),

fet2020/rental/utils.py

@@ -1,6 +1,6 @@
 import io
-from pathlib import Path
 
+from django.contrib.staticfiles import finders
 from django.core.files import File
 from pypdf import PdfReader, PdfWriter
 
@@ -27,27 +27,21 @@ def generate_rental_pdf(rental: Rental) -> bool:
         },
     )
 
-    total_deposit = 0
-
     for i, item in enumerate(rental.rentalitems.all(), start=1):
-        total_deposit += item.deposit
         data.update(
             {
                 f"Produkt Row{i}": item.name,
                 f"Menge Row{i}": "1",
-                f"Kaution Row{i}": item.deposit,
+                f"Kaution Row{i}": (str(item.deposit) if not rental.intern else "0"),
             },
         )
 
-    data.update(
-        {
-            "Gesamtkaution": total_deposit,
-        },
-    )
+    total_deposit = rental.calc_total_deposit()
+    data.update({"Gesamtkaution": str(total_deposit)})
 
     # Write data in pdf
-    pdf_path = Path(Path(__file__).parent) / "static/rental/Verleihformular.pdf"
-    reader = PdfReader(pdf_path)
+    pdf_path_str = finders.find("rental/Verleihformular.pdf")
+    reader = PdfReader(pdf_path_str)
     writer = PdfWriter()
     writer.append(reader)
 
@@ -58,6 +52,7 @@ def generate_rental_pdf(rental: Rental) -> bool:
 
     with io.BytesIO() as bytes_stream:
         writer.write(bytes_stream)
+        bytes_stream.seek(0)
 
         # Save pdf in rental
         rental_name = f"Verleihformular-{str(rental.pk).zfill(4)}.pdf"

fet2020/rental/views.py

@@ -3,6 +3,7 @@ import datetime
 from datetime import date
 
 from django.db.models import Q
+from django.http import HttpResponseRedirect
 from django.shortcuts import render
 from django.urls import reverse
 from django.views.generic import ListView, TemplateView
@@ -12,6 +13,9 @@ from django.views.generic.edit import CreateView
 from .forms import RentalCreateForm
 from .models import Rental, RentalItem
 
+# Maximum number of rental items per rental entry because of table size limitations in PDF file
+RENTAL_ITEMS_MAX = 5
+
 
 def _calc_days_from_current_month(month: date) -> list:
     last_day_of_month = month.replace(day=calendar.monthrange(month.year, month.month)[1])
@@ -185,7 +189,7 @@ class RentalListView(ListView):
                     if rental["rentalitems__name"] not in rental_dict[day]:
                         rental_dict[day].append(rental["rentalitems__name"])
 
-        context["rental_dict"] = rental_dict
+        context["rental_dict"] = {k: sorted(v, key=str.casefold) for k, v in rental_dict.items()}
 
         return context
 
@@ -223,6 +227,35 @@ class RentalCreateView(CreateView):
     model = Rental
     template_name = "rental/create.html"
 
+    def form_valid(self, form):
+        # Get unsaved base Rental with all form data
+        base_rental = form.save(commit=False)
+        items = list(form.cleaned_data["rentalitems"])
+        selected_items = sorted(items, key=lambda x: x.name.lower())
+
+        for i in range(0, len(selected_items), RENTAL_ITEMS_MAX):
+            batch = selected_items[i:i + RENTAL_ITEMS_MAX]
+
+            # Clone base_rental — copying all its field values
+            new_rental = Rental.objects.create(
+                firstname=base_rental.firstname,
+                surname=base_rental.surname,
+                matriculation_number=base_rental.matriculation_number,
+                email=base_rental.email,
+                phone=base_rental.phone,
+                organization=base_rental.organization,
+                date_start=base_rental.date_start,
+                date_end=base_rental.date_end,
+                reason=base_rental.reason,
+                comment=base_rental.comment,
+                status=base_rental.status,
+            )
+
+            # Important: Add M2M relations after the object has been saved
+            new_rental.rentalitems.add(*batch)
+
+        return HttpResponseRedirect(self.get_success_url())
+
     def get_context_data(self, **kwargs):
         context = super().get_context_data(**kwargs)
 
@@ -231,26 +264,11 @@ class RentalCreateView(CreateView):
         return context
 
     def get_success_url(self):
-        return reverse("rental:rental_create_done", kwargs={"pk": self.object.pk})
-
+        return reverse("rental:rental_create_done")
 
 class RentalCreateDoneView(TemplateView):
     template_name = "rental/create_done.html"
 
-    def get_context_data(self, **kwargs):
-        context = super().get_context_data(**kwargs)
-
-        obj = Rental.objects.get(pk=self.kwargs["pk"])
-
-        total_deposit = 0
-        for elem in obj.rentalitems.all():
-            total_deposit += elem.deposit
-
-        context["object"] = obj
-        context["total_deposit"] = total_deposit
-
-        return context
-
 
 class RentalItemDetailView(DetailView):
     model = RentalItem

fet2020/templates/rental/create_done.html

@@ -7,7 +7,12 @@
 <main class="container mx-auto w-full px-4 my-8 flex-1 max-w-2xl">
   <section class="block w-full">
     <p class="mt-6 text-gray-900 dark:text-gray-100 hyphens-auto" lang="de">
-            Deine Verleihanfrage mit der Nummer #{{ pk }} wurde erfolgreich eingereicht. Die Gegenstände können am {{ object.date_start }} während der Beratungszeit (Montag - Donnerstag: 09:00 - 14:00, Freitag: 09:00 - 12:00) abgeholt werden. Bitte bring den Gesamtpfand in Höhe von {{ total_deposit }} € in bar mit.
+      Deine Verleihanfrage ist eingegangen - danke dir! 🎉
+      Wir kümmern uns jetzt darum und melden uns per E-Mail mit den nächsten Schritten.
+    </p>
+    <p class="mt-6 text-gray-900 dark:text-gray-100 hyphens-auto" lang="de">
+      Kleiner Hinweis: Bevor du die Sachen abholen kannst, wird deine Anfrage kurz geprüft und freigegeben.
+      Sobald alles genehmigt ist, bekommst du von uns eine Mail.
     </p>
     <div class="mt-10 flex items-center justify-center">
       <a href="{% url 'home' %}" type="submit" class="block btn btn-primary">Zur Startseite</a>