python - CreateView 未在提交时保存，但在 UpdateView 上保存

Question

我已经为此绞尽脑汁两天了，希望有人能帮助我弄清楚我错过了什么。

我之前可以提交，但更改了一些内容，但我不知道是什么。

当我尝试添加新客户端时，页面只是重新加载，什么也不做。

但是当我去编辑已经创建的一个(使用管理控制台)时，它会按预期工作。

模型.py

from django.urls import reverse
from django.db.models import CharField
from django.db.models import DateTimeField
from django.db.models import FileField
from django.db.models import IntegerField
from django.db.models import TextField
from django.conf import settings
from django.contrib.contenttypes.fields import GenericForeignKey
from django.contrib.contenttypes.models import ContentType
from django.contrib.auth import get_user_model
from django.contrib.auth import models as auth_models
from django.db import models as models
from django.contrib.auth.models import User
from django_extensions.db import fields as extension_fields

FINANCING_TYPE = (
    ('LoanPal', 'LoanPal'),
    ('Renew', 'Renew'),
    ('GreenSky', 'GreenSky'),
    ('Cash/Card/Check', 'Cash/Card/Check'),
    ('Other', 'Other - Please Note'),
)

ROOF_TYPE = (
    ('Cement Flat', 'Cement Flat'),
    ('Cement S/W', 'Cement S/W'),
    ('Composite', 'Composite'),
    ('Clay', 'Clay'),
    ('Metal', 'Metal'),
    ('Other', 'Other - Please Note'),
)

JOB_STATUS = (
    ('New', 'New'),
    ('Sent to Engineer', 'Sent to Engineer'),
    ('Installer', 'Installer'),
    ('Completed', 'Completed'),
)


class Client(models.Model):

    # Fields
    sales_person = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, blank=True)
    job_status = models.CharField(max_length=30, choices=JOB_STATUS, default="New")
    created = models.DateTimeField(auto_now_add=True, editable=False)
    last_updated = models.DateTimeField(auto_now=True, editable=False)
    first_name = models.CharField(max_length=100)
    last_name = models.CharField(max_length=100)
    street_address = models.CharField(max_length=100)
    city = models.CharField(max_length=100)
    zipcode = models.CharField(max_length=10)
    phone_number = models.CharField(max_length=16)
    email_address = models.CharField(max_length=100)
    financing_type = models.CharField(max_length=30, choices=FINANCING_TYPE)
    contract_amount = models.IntegerField()
    contract_pdf = models.FileField(upload_to="upload/files/contracts/")
    electric_bill = models.FileField(upload_to="upload/files/electric_bills/")
    roof_type = models.CharField(max_length=30, choices=ROOF_TYPE)
    edge_of_roof_picture = models.ImageField(verbose_name="Picture of Roof Edge", upload_to="upload/files/edge_of_roof_pictures/")
    rafter_picture = models.ImageField(verbose_name="Picture of Rafter/Truss", upload_to="upload/files/rafter_pictures/")
    biggest_breaker_amp = models.IntegerField()
    electric_panel_picture = models.ImageField(verbose_name="Picture of Electrical Panel", upload_to="upload/files/electric_panel_pictures/")
    electric_box_type = models.CharField(verbose_name="Top or bottom fed electric box (is there an overhead line coming in? Can you see where the electric line comes in?)", max_length=100)
    main_panel_location = models.CharField(verbose_name="Main panel location (looking at house from street)", max_length=100)
    additional_notes = models.TextField(verbose_name="Any Additional Notes?", blank=True)
    customer_informed = models.BooleanField(verbose_name="Informed customer plans and placards will be mailed to them and make them available install day")
    class Meta:
        ordering = ('-created',)

    def get_absolute_url(self):
        return reverse('sales_client_detail', args=[str(self.id)])

    def __str__(self):
        return self.street_address

View .py

from django.views.generic import DetailView, ListView, UpdateView, CreateView
from .models import Client
from .forms import ClientForm
from django.contrib.auth.mixins import LoginRequiredMixin
from django.shortcuts import get_object_or_404
from django.urls import reverse_lazy

class ClientListView(LoginRequiredMixin,ListView):
    model = Client
    def get_queryset(self):
        if not self.request.user.is_staff:
            return Client.objects.filter(sales_person=self.request.user)
        else:
            return Client.objects.all()

class ClientCreateView(LoginRequiredMixin,CreateView):
    form_class = ClientForm
    model = Client

class ClientDetailView(LoginRequiredMixin,DetailView):
    model = Client

#    def get_object(self):
#        if not self.request.user.is_staff:
#            return get_object_or_404(Client, sales_person=self.request.user)
#        else:
#            queryset = self.get_queryset()
#            obj = get_object_or_404(queryset)
#            return obj



class ClientUpdateView(LoginRequiredMixin,UpdateView):
    model = Client
    form_class = ClientForm

表单.py

from django import forms
from .models import Client


class ClientForm(forms.ModelForm):
    class Meta:
        model = Client
        fields = ['first_name', 'last_name', 'street_address', 'city', 'zipcode',
                  'phone_number', 'email_address', 'financing_type', 'contract_amount',
                  'contract_pdf', 'electric_bill', 'roof_type', 'edge_of_roof_picture',
                  'rafter_picture', 'biggest_breaker_amp', 'electric_panel_picture',
                  'electric_box_type', 'main_panel_location', 'additional_notes', 'customer_informed']

url.py

from django.urls import path, include

from . import views



urlpatterns = (
    # urls for Client
    path('clients/', views.ClientListView.as_view(), name='sales_client_list'),
    path('client/create/', views.ClientCreateView.as_view(), name='sales_client_create'),
    path('client/view/<int:pk>', views.ClientDetailView.as_view(), name='sales_client_detail'),
    path('client/update/<int:pk>', views.ClientUpdateView.as_view(), name='sales_client_update'),
)

client_form.html

{% extends "base.html" %}
{% load static %}
{% load crispy_forms_tags %}
{% block content %}

<form method="POST">
{% csrf_token %}
{{form|crispy}}
<button class="btn btn-primary" type="submit">Submit</button>
</form>
{% endblock %}

Answer 1

我能够通过 irc.Freenode.net 从 #Django 上的 GinFuyou 获得帮助

问题是我需要在 client_form.html 上设置 enctype="multipart/form-data"

整行应该是

<form enctype="multipart/form-data" method="POST">

这是由于将文件上传到表单所致。