add a new Vorlage file, update number of bill to 10 and fix text to multiline

fet2020/finance/forms.py

@@ -398,8 +398,8 @@ class BillAdminForm(forms.ModelForm):
         self.fields["bill_creator"].widget.can_change_related = False
         self.fields["bill_creator"].widget.can_delete_related = False
 
-        # delete wiref id from list if there are already 8 bills in wiref form.
-        qs = self.fields["wiref"].queryset.annotate(num_bills=Count("bill")).filter(num_bills__lt=8)
+        # Delete wiref id from list if there are already 10 bills in wiref form.
+        qs = self.fields["wiref"].queryset.annotate(num_bills=Count("bill")).filter(num_bills__lt=10)
 
         # delete wiref id from if status is not opened.
         qs = qs.filter(status=Wiref.Status.OPENED)

fet2020/finance/utils.py

@@ -4,24 +4,32 @@ import os
 
 from django.core.files import File
 from pypdf import PdfReader, PdfWriter
+from pypdf.constants import FieldDictionaryAttributes as FA
 
 from .models import Bill, Wiref
 
 
 def generate_pdf(wiref):
-    if wiref is not None and wiref.status == Wiref.Status.OPENED:
+    if wiref is None or wiref.status != Wiref.Status.OPENED:
+        return False
+
     bills = Bill.objects.filter(wiref=wiref).order_by("date")
 
     # Get data for pdf
     data = {}
+    data_invoice = {}   # Own dict for fixing text to multiline
     for count, elem in enumerate(bills):
         data.update(
             {
-                    f"Datum.{count}": str(elem.date.strftime("%d.%m.%Y")),
-                    f"Aussteller.{count}": elem.invoice,
-                    f"Verwendungszweck.{count}": elem.purpose,
+                f"DatumRow{count + 1}": str(elem.date.strftime("%d.%m.%Y")),
+                f"VerwendungszweckRow{count + 1}": elem.purpose,
                 # Replace decimal separator from '.' to ','
-                    f"Betrag.{count}": str(elem.amount).replace(".", ","),
+                f"BetragRow{count + 1}": str(elem.amount).replace(".", ","),
+            }
+        )
+        data_invoice.update(
+            {
+                f"RechnungsaustellerinRow{count + 1}": elem.invoice,
             }
         )
 
@@ -39,7 +47,7 @@ def generate_pdf(wiref):
 
     data.update(
         {
-                "Laufende Nummer": str(wiref.wiref_id),
+            "Rechnungsnummer": str(wiref.wiref_id),
             "Budgetjahr": budget_year,
             # Replace decimal separator from '.' to ','
             "Summe": str(total).replace(".", ","),
@@ -47,7 +55,7 @@ def generate_pdf(wiref):
     )
 
     # Write data in pdf
-        pdf_path = os.path.join(os.path.dirname(__file__), "static/Vorlage.pdf")
+    pdf_path = os.path.join(os.path.dirname(__file__), "static/wiref/Vorlage.pdf")
     reader = PdfReader(pdf_path)
     writer = PdfWriter()
     writer.append(reader)
@@ -57,6 +65,13 @@ def generate_pdf(wiref):
         data,
     )
     
+    # Add invoices and fix text to multiline
+    writer.update_page_form_field_values(
+        writer.pages[0],
+        data_invoice,
+        flags=FA.FfBits.Multiline,
+    )
+
     with io.BytesIO() as bytes_stream:
         writer.write(bytes_stream)
 
@@ -65,5 +80,3 @@ def generate_pdf(wiref):
         wiref.file_field.save(wiref_name, File(bytes_stream, wiref_name))
 
     return True
-
-    return False