enter code here models.py
{
views.py
def registered_cust1(request, id):
obj = get_object_or_404(Customer1, id= id)
ob = Customer.objects.all()
checked = request.POST.getlist('checks[]')
c_checked = []
form = RawCustomer1Form()
if request.method == 'POST':
form =RawCustomer1Form(request.POST)
if form.is_valid():
try:
for check in checked :
new_check = get_object_or_404(Menu, name=check)
c_checked.append(new_check)
#user = Customer.objects.get(mobile_number=request.POST['mobile_number'])
print(form.cleaned_data)
product = Customer1.objects.create(**form.cleaned_data)
product.particular.set(*c_checked)
context = { "object": obj, "ob":ob,}
return render(request, 'customer/customers_details.html', context )
except Customer.DoesNotExist:
return render(request, "customer/registered_cust.html", {'error':'no mobile number found'})
else:
print(form.errors)
context = {
'form': form,
"object": obj,
"ob":ob,
}
return render(request, 'customer/customers_details.html', context)forms.py
class RawCustomer1Form(forms.Form):
mobile_number = forms.CharField(label='Mobile Number', widget=forms.TextInput(attrs={"placeholder": "Customer Number"}))
particular = forms.ModelMultipleChoiceField(queryset=Menu.objects.all(), widget=forms.CheckboxSelectMultiple)
qty = forms.DecimalField()
#rate = forms.DecimalField()
amount_paid = forms.DecimalField()models.py
class Customer1(models.Model):
mobile_number = models.CharField(max_length=12, unique=False)
particular = models.ManyToManyField(Menu, related_name="particular", blank=True, null=True)
qty = models.DecimalField(decimal_places=1, max_digits=100)
subtotal = models.DecimalField(default=00, decimal_places=2, max_digits=10000)
total = models.DecimalField(default=00, decimal_places=2, max_digits=10000)
amount_paid = models.DecimalField(decimal_places=2, max_digits=10000)
date_cust = models.DateTimeField(default=datetime.now(), blank=True)
#objects = UserManager()
def __str__(self):
return str(self.id)
def get_pdf_bill(self):
return reverse("bill_pdf", kwargs={"id": self.id})
def m2m_changed_cust_receiver(sender, instance, action, *arg, **kwargs):
print(action)
if action == 'post_add' or 'post_remove' or 'post_clear':
products = instance.particular.all()
total = 0
for x in products:
total += x.rate
if instance.subtotal != total:
instance.subtotal = total
instance.save()
m2m_changed.connect(m2m_changed_cust_receiver, sender=Customer1.particular.through)
def pre_save_cust_receiver(sender, instance, *args, **kwargs):
instance.total = instance.subtotal
pre_save.connect(pre_save_cust_receiver, sender=Customer1)
类Customer1（models.Model）： mobile_number = models.CharField（max_length = 12，unique = False） 特别= models.ManyToManyField（菜单，related_name =“ particular”，blank = True，null = True） 数量= models.DecimalField（decimal_places = 1，max_digits = 100） 小计= models.DecimalField（默认= 00，小数位数= 2，最大位数= 10000） 总计= models.DecimalField（默认值= 00，十进制位置= 2，最大位数= 10000） amount_paid = models.DecimalField（decimal_places = 2，max_digits = 10000） date_cust = models.DateTimeField（默认= datetime.now（），空白=真） #objects = UserManager（）
def __str__(self):
return str(self.id)
def get_pdf_bill(self):
return reverse("bill_pdf", kwargs={"id": self.id})
def m2m_changed_cust_receiver（发送方，实例，操作，* arg，** kwargs）： 打印（动作） 如果操作=='post_add'或'post_remove'或'post_clear'： 产品= instance.particular.all（） 总计= 0 对于x in产品： 总计+ = x.rate 如果instance.subtotal！=总计： instance.subtotal =总数
instance.save()
m2m_changed.connect（m2m_changed_cust_receiver，sender = Customer1.particular.through）
def pre_save_cust_receiver（发件人，实例，* args，** kwargs）： instance.total = instance.subtotal
pre_save.connect（pre_save_cust_receiver，sender = Customer1）
}