我在我的一个表单中添加了一个 Many2Many 字段,现在我在提交时收到一个 IntegrityError。确切的错误文本是
/add_person/hireterm_person.mail_lists 处的 IntegrityError 可能不为 NULL
在我添加新字段之前它运行良好。当我查看有关调试更改的 POST 数据时,我看到它正在通过,所以我不知道中断发生在哪里。
楷模
from django.db import models
from django.forms import ModelForm
from django import forms
from django.contrib.auth.models import User
class Mailists(models.Model):
name = models.CharField(blank=True, max_length=100)
email = models.CharField(blank=True, max_length=100)
def __unicode__(self):
return u'%s' % (self.name)
class Person(models.Model):
ROLE_CHOICES = (
('Mrkt', 'Marketing'),
('Fin/Off', 'Finance / Office'),
('Care', 'Care'),
('Sales', 'Sales'),
)
ROLE_TYPE = (
('Full', 'Full Time'),
('Part', 'Part Time'),
('Intern', 'Intern'),
)
first_name = models.CharField(blank=True, max_length=100)
last_name = models.CharField(blank=True, max_length=100)
date_added = models.DateField(auto_now_add=True)
date_start = models.DateField(auto_now=False)
role = models.CharField(max_length=100, default = "", choices = ROLE_CHOICES)
manager = models.ForeignKey('self', limit_choices_to = {'is_manager': True}, null=True, blank=True)
title = models.CharField(blank=True, max_length=100)
role_type = models.CharField(max_length=100, default = "", choices = ROLE_TYPE)
laptop_needed = models.BooleanField(default=True)
phone_needed = models.BooleanField(default=True)
desk_loco = models.CharField(blank=True, max_length=100)
mail_lists = models.ManyToManyField(Mailists, blank=True)
notes = models.CharField(blank=True, max_length=500)
is_manager = models.BooleanField(default=False)
is_active = models.BooleanField(default=True)
def __unicode__(self):
return u'%s %s' % (self.first_name, self.last_name)
class PersonForm(ModelForm):
mail_lists = forms.ModelMultipleChoiceField(queryset=Mailists.objects.all(), widget=forms.CheckboxSelectMultiple(), required=False)
class Meta:
model = Person
编辑
我添加了 mail_lists = request.POST.getlist('mail_lists')。当我添加一个打印到这个时,返回的列表是所有的复选框,把 POST 数据仍然是单个字符串,最后一个框被选中。
意见
from hireterm.models import Person, Mailists, PersonForm
from django.shortcuts import get_object_or_404, render
from django.template import Context, loader
from django.http import HttpResponseRedirect, HttpResponse
from django.contrib.auth.decorators import login_required
from django.contrib.auth import authenticate, login
from django.contrib.auth import logout
from django.core.mail import send_mail
@login_required
def home(request):
return render(request, 'hireterm/home.html')
def add_person(request):
if request.method == 'POST':
mail_lists = request.POST.getlist('mail_lists')
person_form = PersonForm(request.POST)
if person_form.is_valid():
person_form.save()
return HttpResponseRedirect('/new_hire') # Redirect after POST
else:
person_form = PersonForm() # An unbound form
return render(request, 'hireterm/additem.html', {
'form': person_form,
})