我有以下兩種型號
# models.py
class Applicant(models.Model):
"""
A table to store all applicants, relates 1-n to an offer
"""
name = models.CharField(max_length=50)
job = models.CharField(max_length=50)
start = models.DateField(null=True, blank=True)
def __str__(self):
return f'{self.name} applying for {self.job} starting {self.start}'
class Offer(models.Model):
"""
A table to store created offers
"""
# Relations
applicant = models.ForeignKey(Applicant, on_delete=models.CASCADE)
# Self
monthly_raise = models.FloatField()
months = models.PositiveIntegerField(validators=[MinValueValidator(1), MaxValueValidator(60)])
start_salary = models.FloatField()
在我的模板中，我在同一個包裝器中呈現除了start（我根本不呈現）之外的所有欄位。<form></form>現在在我看來，我想為每個模型創建新實體，但前提是兩者都有效。
這就是我所擁有的
NOT NULL 約束失敗：planner_offer.applicant_id
def render_dashboard_planner(request):
site = 'planner'
if request.method == 'GET':
applicant_form = ApplicantForm()
offer_form = OfferForm()
context = {
'applicant_form': applicant_form,
'offer_form': offer_form,
'site': site
}
return render(request, "dashboard/dashboard_planner.html", context)
else:
# Process the created Offer
applicant_form = ApplicantForm()
offer_form = OfferForm()
form_applicant = ApplicantForm(request.POST)
form_offer = OfferForm(request.POST)
if form_applicant.is_valid() and form_offer.is_valid():
# Grab the data
form_applicant.save(commit=True)
# Create Offer instance
form_offer.save(commit=False)
form_offer.applicant = form_applicant
form_offer.save(commit=True)
context = {
'site': site,
'offer_form': offer_form,
'applicant_form': applicant_form,
}
return render(request, "dashboard/dashboard_planner.html", context)
我將如何解決關系問題，這是以這種方式處理作業流程的正確方法嗎？
uj5u.com熱心網友回復：
您應該在 的.applicant上.instance設定form，并使用 的實體，而form_applicant不是form_applicant本身，所以：
from django.shortcuts import redirect
def render_dashboard_planner(request):
site = 'planner'
if request.method == 'POST':
form_applicant = ApplicantForm(request.POST, request.FILES)
form_offer = OfferForm(request.POST, request.FILES)
if form_applicant.is_valid() and form_offer.is_valid():
# Grab the data
applicant = form_applicant.save()
form_offer.instance.applicant = applicant
form_offer.save()
return redirect('name-of-some-view')
else:
applicant_form = ApplicantForm()
offer_form = OfferForm()
context = {
'applicant_form': applicant_form,
'offer_form': offer_form,
'site': site
}
return render(request, 'dashboard/dashboard_planner.html', context)轉載請註明出處，本文鏈接：https://www.uj5u.com/qukuanlian/450244.html
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