我的观点将ID传递给我的表单。此id是另一个表中的外键。我无法将id保存在数据库表中。 （id：voucher_id，我保存表单的表：TmpPlInvoicedet）
我想做什么
从（查看）发送voucher_id到---＆gt; TmpFormDetForm（表格）---＆gt; TmpPlInvoicedet（DB）
尝试从表'TmpPlInvoice'中获取实例（其中voucher_id为PK）并将其保存在表单中给我
/ new / TmpPlInvoice匹配查询中的DoesNotExist不存在
我做错了什么？
Views.py
def new_invoic(request):
# Create a voucher id according to my criteria
temp_vid = TmpPlInvoice.objects.order_by().values_list("voucher_id", flat=True).distinct()
if not temp_vid:
voucher_id = str(1).zfill(4)
else:
voucher_id = str(int(max(temp_vid)) + 1).zfill(4)
# POST METHOD TRying to show the voucher_id in the form in readonly format
if request.method == 'POST':
form_pk = TmpForm(request.POST or None, voucher_id=voucher_id,initial={'voucher_id': voucher_id})
if form.is_valid():
form_pk.save()
form = TmpFormDetForm(request.POST or None, voucher=voucher_id, initial={'voucher': voucher_id})
# My assumption is that since i have save the voucher_id in the TmpInvoice table so i can get the PK voucher_id value and save it in the TmpInvoiceDetForm
form.save()
return HttpResponseRedirect('/new/')
else:
return render_to_response('test.html',{'form': form, 'form_pk': form_pk},context_instance=RequestContext(request))
else:
form_pk = TmpForm(voucher_id=voucher_id,initial={'voucher_id': voucher_id})
form = TmpFormDetForm(voucher=voucher_id, initial={'voucher': voucher_id})
return render_to_response('test.html',{'form': form, 'form_pk': form_pk},context_instance=RequestContext(request))
Forms.py
# This form contains the FK. This one is giving errors while saving.
class TmpFormDetForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
voucher = kwargs.pop('voucher', None)
super(TmpFormDetForm, self).__init__(*args, **kwargs)
self.fields['voucher'].initial = TmpPlInvoice.objects.get(voucher_id=voucher)
voucher = forms.CharField(widget=forms.TextInput(attrs={'size':'40'}))
class Meta:
model = TmpPlInvoicedet
exclude = ['emp_id','particulars','qty', 'rate' , 'itemtot', 'stock_code' ]
widgets = {
'voucher': forms.TextInput(attrs={'class': 'form-control', 'placeholder': '', 'required': 'False', 'name': 'voucher','readonly': 'readonly'}),
'lineitem': forms.TextInput(attrs={'class': 'form-control', 'placeholder': 'Add Total', 'required': 'False', 'blank': 'True'})}
# This form takes the PK. I save the PK here first.
class TmpForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
voucher_id = kwargs.pop('voucher_id', None)
super(TmpFor, self).__init__(*args, **kwargs)
self.fields['voucher_id'].initial = voucher_id
pos_code = MyModelChoiceField(queryset=Positions.objects.all(), widget=forms.Select(attrs={'class': 'select2_single form-control', 'blank': 'True'}))
cust = MyModelChoiceField(queryset=Custodian.objects.all(), to_field_name='acct_id',widget=forms.Select(attrs={'class': 'select2_single form-control', 'blank': 'True'}))
acct = MyModelChoiceField(queryset=Item.objects.all(), to_field_name='stock_code',widget=forms.Select(attrs={'class':'select2_single form-control', 'blank': 'True'}))
voucher_date = forms.DateField(widget=forms.TextInput(attrs={'tabindex': '-1', 'class': 'form-control has-feedback-left', 'id': 'single_cal1','aria-describedby': 'inputSuccess2Status'}))
class Meta:
model = TmpPlInvoice
exclude = ['net_amt', 'post_date', 'address', 'posted']
widgets = {
'voucher_id': forms.TextInput(attrs={'class': 'form-control', 'placeholder': '', 'required':'False', 'name': 'voucher_id', 'readonly': 'readonly'}),
'voucher_date': forms.TextInput(attrs={'tabindex': '-1', 'class': 'form-control has-feedback-left', 'id': 'single_cal1','aria-describedby': 'inputSuccess2Status'}),
'particulars': forms.TextInput(attrs={'class': 'form-control', 'placeholder': 'Add Particulars', 'required':'False'}),
}
的 Models.py
class TmpPlInvoicedet(models.Model):
stock_code = models.CharField(max_length=13, blank=True, null=True)
voucher = models.ForeignKey(TmpPlInvoice, db_column='voucher_id')
lineitem = models.CharField(max_length=6)
particulars = models.CharField(max_length=200, blank=True, null=True)
qty = models.FloatField(blank=True, null=True)
rate = models.FloatField(blank=True, null=True)
itemtot = models.FloatField(blank=True, null=True)
emp_id = models.CharField(max_length=8, blank=True, null=True)
class Meta:
managed = False
db_table = 'tmp_pl_invoicedet'
unique_together = (('voucher', 'lineitem'),)
答案 0 :(得分：0)
您似乎在创建新的发票ID，然后在表单中尝试获取与该ID匹配的发票。但是，该发票尚未存在，当然，因为您还没有创建它。
您可能希望使用get_or_create确保在不存在发票的情况下创建发票。
答案 1 :(得分：0)
容易撒尿。
def master_detail(request):
def get_new_voucher_id():
temp_vid = TmpPlInvoice.objects.order_by().values_list("voucher_id", flat=True).distinct()
logger.info('Voucher ID already present %s', temp_vid)
if not temp_vid:
voucher_id = str(1).zfill(4)
else:
voucher_id = str(int(max(temp_vid)) + 1).zfill(4)
return voucher_id
voucher_id = get_new_voucher_id()
author_form = TmpForm(initial={'voucher_id': voucher_id})
author = TmpPlInvoice()
BookFormSet = inlineformset_factory(TmpPlInvoice, TmpPlInvoicedet, exclude=('emp_id', 'itemtot', 'voucher', 'lineitem','id'),
form=TmpFormDetForm, extra=1)
formset = BookFormSet(instance=author)
if request.method == 'POST':
logger.info('*'*50)
author = TmpForm(request.POST, initial={'voucher_id': voucher_id})
if author.is_valid():
logger.info('Data for Author is %s', author.cleaned_data)
created_author = author.save()
formset = BookFormSet(request.POST, instance=created_author)
if formset.is_valid():
logger.info('Data for Book is %s', formset.cleaned_data)
formset.save()
else:
logger.info('Formset errors %s', formset.errors)
else:
logger.info('Master form errors %s', author.errors)
logger.info('*'*50)
return HttpResponseRedirect('/new/')
else:
logger.info('Formset from GET is %s', formset.errors)
return render_to_response('new_invoice.html',
{'form': author_form, 'formset': formset},context_instance=RequestContext(request))