members/freizeit: sjr applications

jdav_web/members/admin.py

@@ -26,7 +26,7 @@ from django.db.models import TextField, ManyToManyField, ForeignKey, Count,\
 from django.forms import Textarea, RadioSelect, TypedChoiceField
 from django.shortcuts import render
 from django.core.exceptions import PermissionDenied
-from .pdf import render_tex
+from .pdf import render_tex, fill_pdf_form
 
 from contrib.admin import CommonAdminInlineMixin, CommonAdminMixin
 
@@ -669,7 +669,7 @@ class FreizeitAdmin(FilteredMemberFieldMixin, CommonAdminMixin, nested_admin.Nes
     list_display = ['__str__', 'date']
     search_fields = ('name',)
     ordering = ('-date',)
-    actions = ['crisis_intervention_list', 'notes_list', 'seminar_report']
+    actions = ['crisis_intervention_list', 'notes_list', 'seminar_report', 'sjr_application']
     view_on_site = False
     #formfield_overrides = {
     #    ManyToManyField: {'widget': forms.CheckboxSelectMultiple},
@@ -730,6 +730,17 @@ class FreizeitAdmin(FilteredMemberFieldMixin, CommonAdminMixin, nested_admin.Nes
         return render_tex(title + "_Seminarbericht", 'members/seminar_report.tex', context)
     seminar_report.short_description = _('Generate seminar report')
 
+    def sjr_application(self, request, queryset):
+        # this ensures legacy compatibilty
+        memberlist = queryset[0]
+        if not self.may_view_excursion(request, memberlist):
+            return self.not_allowed_view(request, memberlist)
+        context = memberlist.sjr_application_fields()
+        attachments = [b.proof.path for b in memberlist.statement.bill_set.all()]
+        title = memberlist.ljpproposal.title if hasattr(memberlist, 'ljpproposal') else memberlist.name
+        return fill_pdf_form(title + "_SJR_Antrag", 'members/sjr_template.pdf', context, attachments)
+    sjr_application.short_description = _('Generate SJR application')
+
     def get_urls(self):
         urls = super().get_urls()
 
@@ -750,6 +761,8 @@ class FreizeitAdmin(FilteredMemberFieldMixin, CommonAdminMixin, nested_admin.Nes
         return custom_urls + urls
 
     def action_view(self, request, object_id):
+        if "sjr_application" in request.POST:
+            return self.sjr_application(request, [Freizeit.objects.get(pk=object_id)])
         if "seminar_report" in request.POST:
             return self.seminar_report(request, [Freizeit.objects.get(pk=object_id)])
         if "notes_list" in request.POST:

jdav_web/members/models.py

@@ -973,6 +973,41 @@ class Freizeit(CommonModel):
             sks.append(dict(name=activity, skill_avg=skill_avg, skill_min=skill_min, skill_max=skill_max))
         return (people, sks)
 
+    def sjr_application_fields(self):
+        members = set(map(lambda x: x.member, self.membersonlist.distinct()))
+        total = len(members)
+        total_b27_local = len([m for m in members
+                               if m.age <= 27 and settings.SEKTION in m.town])
+        total_b27_non_local = len([m for m in members
+                                   if m.age <= 27 and not settings.SEKTION in m.town])
+        jls = self.jugendleiter.distinct()
+        title = self.ljpproposal.title if hasattr(self, 'ljpproposal') else self.name
+        base = {'Haushaltsjahr': str(datetime.now().year),
+                'Art / Thema / Titel': title,
+                'Ort': self.place,
+                'Datum von': self.date.strftime('%d.%m.%Y'),
+                'Datum bis': self.end.strftime('%d.%m.%Y'),
+                'Dauer': str(self.duration).replace('.', ','),
+                'Teilnehmenden gesamt': str(total),
+                'bis 27 aus HD': str(total_b27_local),
+                'bis 27 nicht aus HD': str(total_b27_non_local),
+                'Verpflegungstage': str(self.duration * self.participant_count).replace('.', ','),
+                'Betreuer/in': str(len(jls)),
+                'Ort, Datum': '{p}, {d}'.format(p=settings.SEKTION, d=datetime.now().strftime('%d.%m.%Y'))}
+        print(members)
+        for i, m in enumerate(members):
+            suffix = str(' {}'.format(i + 1))
+            # indexing starts at zero, but the listing in the pdf starts at 1
+            if i + 1 == 1:
+                suffix = ''
+            elif i + 1 == 12:
+                suffix = '12'
+            base['Vor- und Nachname' + suffix] = m.name
+            base['Anschrift' + suffix] = m.address
+            base['Alter' + suffix] = str(m.age)
+            base['Status' + suffix] = str(2)
+        return base
+
     @staticmethod
     def filter_queryset_by_permissions(member, queryset=None):
         if queryset is None:

jdav_web/members/pdf.py

@@ -4,10 +4,23 @@ import os
 import subprocess
 import time
 import glob
+from io import BytesIO
+from pypdf import PdfReader, PdfWriter
+from django import template
 from django.template.loader import get_template
 from django.conf import settings
 from django.http import HttpResponse, HttpResponseRedirect
 from wsgiref.util import FileWrapper
+from PIL import Image
+
+
+def find_template(template_name):
+    for engine in template.engines.all():
+        for loader in engine.engine.template_loaders:
+            for origin in loader.get_template_sources(template_name):
+                if os.path.exists(origin.name):
+                    return origin.name
+    raise template.TemplateDoesNotExist(f"Could not find template: {template_name}")
 
 
 def media_path(fp):
@@ -58,3 +71,43 @@ def render_tex(name, template_path, context):
         response['Content-Disposition'] = 'attachment; filename='+filename_pdf
 
     return response
+
+
+def fill_pdf_form(name, template_path, fields, attachments=[]):
+    filename = name + "_" + datetime.today().strftime("%d_%m_%Y")
+    filename = filename.replace(' ', '_').replace('&', '').replace('/', '_')
+    # drop umlauts, accents etc.
+    filename = unicodedata.normalize('NFKD', filename).encode('ASCII', 'ignore').decode()
+    filename_pdf = filename + '.pdf'
+
+    path = find_template(template_path)
+
+    if not os.path.exists(media_dir()):
+        os.makedirs(media_dir())
+
+    reader = PdfReader(path)
+    writer = PdfWriter()
+
+    writer.append(reader)
+
+    writer.update_page_form_field_values(None, fields, auto_regenerate=False)
+
+    for fp in attachments:
+        try:
+            img = Image.open(fp)
+            img_pdf = BytesIO()
+            img.save(img_pdf, "pdf")
+            writer.append(img_pdf)
+        except:
+            print("Could not add image", fp)
+
+    with open(media_path(filename_pdf), 'wb') as output_stream:
+        writer.write(output_stream)
+
+    # provide the user with the resulting pdf file
+    with open(media_path(filename_pdf), 'rb') as pdf:
+        response = HttpResponse(FileWrapper(pdf))#, content='application/pdf')
+        response['Content-Type'] = 'application/pdf'
+        response['Content-Disposition'] = 'attachment; filename='+filename_pdf
+
+    return response

jdav_web/templates/admin/members/freizeit/change_form_object_tools.html

@@ -10,6 +10,13 @@
     </form>
 </li>
 
+<li>
+    <form method="post" action="{% url 'admin:members_freizeit_action' original.pk %}">
+        {% csrf_token %}
+        <input type="submit" name="sjr_application" value="{% trans 'Generate SJR application' %}">
+    </form>
+</li>
+
 <li>
     <form method="post" action="{% url 'admin:members_freizeit_action' original.pk %}">
         {% csrf_token %}