Erste lauffähige Version

app/mailmerge/views.py

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+from pathlib import Path
+
+from django.contrib.auth.decorators import login_required
+from django.http import FileResponse, Http404, HttpResponse
+from django.shortcuts import get_object_or_404, redirect, render
+from django.urls import reverse
+from django.views.decorators.http import require_http_methods
+
+from .forms import LetterTemplateForm, MailMergeJobForm
+from .models import LetterTemplate, MailMergeJob
+from .services.docx_renderer import extract_placeholders
+from .tasks import run_mailmerge
+
+
+@login_required
+def dashboard(request):
+    templates = LetterTemplate.objects.all()[:20]
+    jobs = MailMergeJob.objects.select_related("template")[:20]
+    return render(request, "mailmerge/dashboard.html",
+                  {"templates": templates, "jobs": jobs})
+
+
+@login_required
+@require_http_methods(["GET", "POST"])
+def template_upload(request):
+    form = LetterTemplateForm(request.POST or None, request.FILES or None)
+    if request.method == "POST" and form.is_valid():
+        tpl = form.save(commit=False)
+        tpl.created_by = request.user
+        tpl.save()
+        # Platzhalter extrahieren – Datei liegt jetzt auf Disk
+        tpl.placeholders = extract_placeholders(Path(tpl.file.path))
+        tpl.save(update_fields=["placeholders"])
+        return redirect(reverse("template-detail", args=[tpl.id]))
+    return render(request, "mailmerge/template_form.html", {"form": form})
+
+
+@login_required
+def template_detail(request, pk):
+    tpl = get_object_or_404(LetterTemplate, pk=pk)
+    return render(request, "mailmerge/template_detail.html", {"template": tpl})
+
+
+@login_required
+@require_http_methods(["GET", "POST"])
+def job_create(request):
+    form = MailMergeJobForm(request.POST or None, request.FILES or None)
+    if request.method == "POST" and form.is_valid():
+        job = form.save(commit=False)
+        job.created_by = request.user
+        job.save()
+        run_mailmerge.delay(str(job.id))
+        return redirect(reverse("job-detail", args=[job.id]))
+    return render(request, "mailmerge/job_form.html", {"form": form})
+
+
+@login_required
+def job_detail(request, pk):
+    job = get_object_or_404(
+        MailMergeJob.objects.select_related("template"), pk=pk
+    )
+    logs = job.logs.all()
+    # HTMX partials: nur das Status-Fragment ausliefern
+    if request.headers.get("HX-Request"):
+        return render(request, "mailmerge/_job_status.html",
+                      {"job": job, "logs": logs})
+    return render(request, "mailmerge/job_detail.html",
+                  {"job": job, "logs": logs})
+
+
+@login_required
+def job_download(request, pk):
+    """PDF-Download – via X-Accel-Redirect in Production, direkter Stream im Dev."""
+    job = get_object_or_404(MailMergeJob, pk=pk)
+    if not job.result_pdf:
+        raise Http404("Kein Ergebnis-PDF vorhanden.")
+
+    # In Dev (settings.DEBUG) direkt streamen
+    from django.conf import settings
+    if settings.DEBUG:
+        return FileResponse(job.result_pdf.open("rb"),
+                            as_attachment=True,
+                            filename=Path(job.result_pdf.name).name)
+
+    # In Production: Nginx serviert die Datei via internem Mount.
+    response = HttpResponse()
+    response["Content-Type"] = "application/pdf"
+    response["Content-Disposition"] = (
+        f'attachment; filename="{Path(job.result_pdf.name).name}"'
+    )
+    # Pfad relativ zu MEDIA_ROOT, gemappt auf /protected-media/
+    relative = job.result_pdf.name
+    response["X-Accel-Redirect"] = f"/protected-media/{relative}"
+    return response