Python Django - Select 选择无效

Question

当我想将表单保存在新的 CharFields（带有选项）上时，Django 告诉我 Select 选项无效。 当我选择另一个适用于其他模型的选择列表时，它确实可以正常工作。

模型.py：

class productsdefinition(models.Model):
    Products = models.CharField(max_length=Lenght200, default='NA')
    Status = models.CharField(max_length=Lenght10, choices=Utilities_CSP.PRODENG_CHOICES)
    Tester = models.ForeignKey(tester, on_delete=models.CASCADE, null=True)
    Board = models.ForeignKey(board, on_delete=models.CASCADE, null=True)
    TestProgram = models.CharField(max_length=Lenght200, default='')
    ProgramLoad = models.ForeignKey(ProgramLoad, on_delete=models.CASCADE, null=True)
    ListProgramEG = Utilities_CSP.ExtractProgEG()
    Probecard = models.CharField(verbose_name='Probe Card',max_length=Lenght200, choices=ListProgramEG, null=True)
    ProgramEG = models.CharField(verbose_name='Program EG',max_length=Lenght200, choices=ListProgramEG, null=True)

forms.py：

class ProducDefForm(forms.ModelForm):
    global tempfield
    i = 0
    tempfield = []
    
    for var in list(vars(productsdefinition()).keys()):
        if i <= 1:
            pass
        elif var == "Date_added":
            pass
        elif var == "LastModified":
            pass
        elif var.find("_id") != -1:
            var = var.replace("_id","")
            tempfield.append(str(var))
        else:
            tempfield.append(str(var))
        i = i + 1
    class Meta:
        model = productsdefinition
        fields = tempfield

    def __init__ (self, *args, **kwargs):
        super(ProducDefForm, self).__init__(*args, **kwargs)
        ListProbecard = Utilities_CSP.ExtractProgEG()
        self.fields['Probecard'].choices = ListProbecard

所以我的字段 ProgramEG 工作正常，但是当我尝试放置（选择）列表以确保字段 Probecard 工作时，它停止工作并告诉我Select Choice in not valid,.... 你知道错误可能在哪里吗？ 它在数据库的表中吗？

编辑：我解决了我的问题：我更改了 Probecard def init (self, *args, **kwargs): super(ProducDefForm, self) 的 model 字段。 init (*args, **kwargs) ListProbecard = Utilities_CSP.ExtractListCAPChoice() self.fields['Probecard'] = forms.ChoiceField(choices=ListProbecard)

感谢您的观看时间。

Answer 1

我解决了我的问题：我更改了 Probecard def init (self, *args, **kwargs): super(ProducDefForm, self).init(*args, **kwargs) ListProbecard = Utilities_CSP.ExtractListCAPChoice() self 的 model 字段.fields['Probecard'] = forms.ChoiceField(choices=ListProbecard)