change pymupdf to pypdf

Dockerfile

@@ -13,28 +13,28 @@ RUN apk add --no-cache --virtual .build-deps ca-certificates gcc linux-headers \
         mariadb-dev \
         freetype-dev \
 # install for pymupdf
-    && apk add --no-cache \
+#    && apk add --no-cache \
-        libffi-dev \
+#        libffi-dev \
-        zlib-dev \
+#        zlib-dev \
-        freetype-dev \
+#        freetype-dev \
-        make \
+#        make \
-        build-base \
+#        build-base \
-        gcc \
+#        gcc \
-        jbig2dec \
+#        jbig2dec \
-        jpeg-dev \
+#        jpeg-dev \
-        harfbuzz-dev \
+#        harfbuzz-dev \
-        libc-dev \
+#        libc-dev \
-        mupdf-dev \
+#        mupdf-dev \
-        musl-dev \
+#        musl-dev \
-        openjpeg-dev \
+#        openjpeg-dev \
-        swig \
+#        swig \
-    && ln -s /usr/lib/libjbig2dec.so.0 /usr/lib/libjbig2dec.so \
+#    && ln -s /usr/lib/libjbig2dec.so.0 /usr/lib/libjbig2dec.so \
-    && pip install pymupdf==1.23.18 \
+#    && pip install pymupdf==1.23.18 \
 # upgrade pip
     && pip install --upgrade pip
 
 # setting for pymupdf
-ENV PYMUPDF_SETUP_MUPDF_TESSERACT="0"
+# ENV PYMUPDF_SETUP_MUPDF_TESSERACT="0"
 
 COPY ./fet2020/requirements.txt /app/requirements.txt
 

fet2020/finance/utils.py

@@ -2,8 +2,8 @@ import datetime
 import io
 import os
 
-import fitz
 from django.core.files import File
+from pypdf import PdfReader, PdfWriter
 
 from .models import Bill, Wiref
 
@@ -12,6 +12,7 @@ def generate_pdf(wiref):
     if wiref is not None and wiref.status == Wiref.Status.OPENED:
         bills = Bill.objects.filter(wiref=wiref).order_by("date")
 
+        # get data for pdf
         data = {}
         for count, elem in enumerate(bills):
             data.update(
@@ -45,7 +46,23 @@ def generate_pdf(wiref):
             }
         )
 
+        # write data in pdf
         pdf_path = os.path.join(os.path.dirname(__file__), "static/Vorlage.pdf")
+        reader = PdfReader(pdf_path)
+        writer = PdfWriter()
+        writer.append(reader)
+
+        writer.update_page_form_field_values(
+            writer.pages[0],
+            data,
+        )
+
+        with io.BytesIO() as bytes_stream:
+            writer.write(bytes_stream)
+
+            wiref_name = f"Abrechnungsformular-{wiref.wiref_id}.pdf"
+            wiref.file_field.save(wiref_name, File(bytes_stream, wiref_name))
+        '''
         with fitz.open(pdf_path) as doc:
             for page in doc:
                 widgets = page.widgets()
@@ -88,6 +105,7 @@ def generate_pdf(wiref):
             dist = doc.tobytes()
             wiref_name = f"{wiref.wiref_id}.pdf"
             wiref.file_field.save(wiref_name, File(io.BytesIO(dist), wiref_name))
+        '''
 
         return True
 

fet2020/requirements.txt

@@ -15,7 +15,7 @@ html2text==2020.1.16
 ldap3==2.9.1
 mysqlclient==2.1.1
 pillow==9.5.0
-pymupdf==1.23.18
+pypdf==4.0.0
 reportlab<4
 segno==1.6.0
 xhtml2pdf==0.2.11   # dependency reportlab<4