python - Django View 重定向NoReverseMatch错误

Question

在 Django 项目中，表单保存后出现错误 NoReverseMatch，重定向到“父 View ”

模型.py

这是一个模型代码 - 人员

class Personnel(models.Model):
    ID_Personnel = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    NameFirst = models.CharField(max_length=50)
    NameLast = models.CharField(max_length=50)
    IsActive = models.BooleanField(default=True, editable=True)
    TimeCreation = models.DateTimeField(default=datetime.now, editable=False)

class IdentityDocument(models.Model):
    ID_IdentityDocument = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    ID_Personnel = models.ForeignKey(Personnel, on_delete=models.PROTECT)
    NumberSerial = models.CharField(max_length=50)
    DateIssue = models.DateField(null=True)
    DateExpiration = models.DateField(null=True)
    NameIssuer = models.CharField(max_length=100, null=True)
    IsActive = models.BooleanField(default=True, editable=True)
    TimeCreation = models.DateTimeField(default=datetime.now, editable=False)

views.py - 人员

def personnel_edit(request, pk):
    person = get_object_or_404(Personnel, ID_Personnel=pk)
    if request.method == 'POST':
        form = PersonnelForm(request.POST, instance=person)
        if form.is_valid():
            person = form.save(commit=False)
            person.save()
            return redirect('personnel_detail', pk=person.ID_Personnel)
    else:
        form = PersonnelForm(instance=person)
    return render(request, 'personnel/personnel_edit.html', {'form': form})

def personnel_detail(request, pk):
    person = get_object_or_404(Personnel, ID_Personnel=pk)
    try:
        document = IdentityDocument.objects.filter(ID_Personnel=pk).order_by('ID_IdType', '-DateExpiration').distinct(
            'ID_IdType')
    except IdentityDocument.DoesNotExist:
        document = None
    return render(request, 'personnel/personnel_detail.html',
                  {'person': person, 'document': document})

views.py - 在表单中设置 ID_Personnel

def identitydocument_new(request, fkey):
    if request.method == 'POST':
        form = IdentityDocumentForm(request.POST)
        if form.is_valid():
            iddoc = form.save(commit=False)
            iddoc.ID_Personnel = Personnel.objects.get(ID_Personnel=fkey)
            iddoc.save()
            return redirect('personnel_detail', pk=fkey)
    else:
        form = IdentityDocumentForm()
    return render(request, 'personnel/identitydocument_edit.html', {'form': form})
def identitydocument_edit(request, pk):
    doc = get_object_or_404(IdentityDocument, ID_IdentityDocument=pk)
    if request.method == 'POST':
        form = IdentityDocumentForm(request.POST, instance=doc)
        if form.is_valid():
            doc = form.save(commit=False)
            doc.save()
            return redirect('personnel_detail', pk=doc.ID_Personnel)
    else:
        form = IdentityDocumentForm(instance=doc)
    return render(request, 'personnel/identitydocument_edit.html', {'form': form})

url.py

from django.urls import path
from . import views

urlpatterns = [
    path('', views.personnel_list, name='personnel_list'),
    path('personnel/<uuid:pk>/', views.personnel_detail, name='personnel_detail'),
    path('personnel/new', views.personnel_new, name='personnel_new'),
    path('personnel/<uuid:pk>/edit/', views.personnel_edit, name='personnel_edit'),
    path('personnel/identitydoc/<uuid:fkey>/', views.identitydocument_new, name='identitydocument_new'),
    path('personnel/identitydoc/<uuid:pk>/edit/', views.identitydocument_edit, name='identitydocument_edit'),
]

Form创建新文档并保存正常，但编辑后出现NoReverseMatch错误。

Traceback

Answer 1

正如该错误所示，ID_Personnel 是对整个相关人事文档的引用。 URL 需要该对象的 ID。所以你应该这样做:

return redirect('personnel_detail', pk=doc.ID_Personnel_id)

但从根本上来说，这表明您的字段名称不正确。正如我所说，这是对对象的引用，而不是 ID，因此它的名称不应暗示它是 ID。只需将其命名为人员即可。 (另外，Python 风格是使用 lower_case_with_underscore 作为属性，所以实际上它应该只是 personnel。)