Add invoice management

nummi/main/models.py

@@ -28,3 +28,13 @@ class Invoice(models.Model):
 
     def __str__(self):
         return f"{self.name}: {self.transaction}"
+
+    def delete(self, *args, **kwargs):
+        self.file.delete()
+        super().delete(*args, **kwargs)
+
+
+class InvoiceForm(ModelForm):
+    class Meta:
+        model = Invoice
+        fields = ["name", "file"]

nummi/main/templates/main/transaction.html

@@ -4,8 +4,15 @@
 	<input type="submit" />
 </form>
 
+<form action="{% url 'add_invoice' transaction.id %}" method="post" enctype="multipart/form-data">
+	{% csrf_token %}
 	<ul>
 		{% for inv in invoices %}
-	<li><a href="{% url 'invoice' inv.id %}">{{ inv.name }}</a></li>
+		<li>
+			<a href="{% url 'invoice' inv.id %}">{{ inv.name }}</a>
+			<a href="{% url 'del_invoice' transaction.id inv.id %}">x</a>
+		</li>
 		{% endfor %}
+		<li>{{ invoice_form }}<input type="submit" /></li>
 	</ul>
+</form>

nummi/main/urls.py

@@ -8,5 +8,11 @@ urlpatterns = [
     path(
         "transaction/<uuid>/update", views.update_transaction, name="update_transaction"
     ),
+    path("transaction/<uuid>/add_invoice", views.add_invoice, name="add_invoice"),
+    path(
+        "transaction/<uuid>/del_invoice/<invoice_id>",
+        views.del_invoice,
+        name="del_invoice",
+    ),
     path("invoice/<uuid>", views.invoice, name="invoice"),
 ]

nummi/main/views.py

@@ -2,7 +2,7 @@ from django.shortcuts import render, get_object_or_404, redirect
 from django.http import HttpResponse
 
 
-from .models import Transaction, TransactionForm, Invoice
+from .models import Transaction, TransactionForm, Invoice, InvoiceForm
 
 
 def index(request):
@@ -23,6 +23,7 @@ def transaction(request, uuid):
             "transaction": _transaction,
             "form": TransactionForm(instance=_transaction),
             "invoices": _invoices,
+            "invoice_form": InvoiceForm(instance=Invoice(transaction=_transaction)),
         },
     )
 
@@ -38,3 +39,17 @@ def invoice(request, uuid):
     _invoice = get_object_or_404(Invoice, id=uuid)
     with _invoice.file.open() as _file:
         return HttpResponse(_file.read(), content_type="application/pdf")
+
+
+def add_invoice(request, uuid):
+    _transaction = get_object_or_404(Transaction, id=uuid)
+    _invoice = Invoice(transaction=_transaction)
+    _form = InvoiceForm(request.POST, request.FILES, instance=_invoice)
+    _form.save()
+    return redirect(transaction, uuid=uuid)
+
+
+def del_invoice(request, uuid, invoice_id):
+    _invoice = get_object_or_404(Invoice, id=invoice_id)
+    _invoice.delete()
+    return redirect(transaction, uuid=uuid)