使用Django格式的备用外键
我有两种型号:使用Django格式的备用外键,django,forms,django-forms,Django,Forms,Django Forms,我有两种型号: class Account1(models.Model): uuid = models.CharField(max_length=22, unique=True) user = models.ForeignKey(User) class Account2(models.Model): uuid = models.CharField(max_length=22, unique=True) account_1 = models.ForeignKey(
class Account1(models.Model):
uuid = models.CharField(max_length=22, unique=True)
user = models.ForeignKey(User)
class Account2(models.Model):
uuid = models.CharField(max_length=22, unique=True)
account_1 = models.ForeignKey(Account1)
“uuid”是一个自定义字符域,它将短uuid(如“mfAiC”)存储为表单中的索引。URL看起来像/view/uuid/。我想在所有URL/HTML中隐藏真实id
以及模型账户2的表格:
class Account2Form(forms.ModelForm):
class Meta:
model = Account2
fields = (
'account_1',
)
def __init__(self, user, *args, **kwargs):
super(Account2Form, self).__init__(*args, **kwargs)
self.fields['account_1'].queryset = Account1.objects.filter(user=user)
呈现的HTML将是:
<select name="account_1" id="id_account_1">
<option value="" selected="selected">---------</option>
<option value="1">account 1 name</option>
</select>
---------
帐户1名称
我需要的是在表单中使用uuid而不是id,比如:
<select name="account_1" id="id_account_1">
<option value="" selected="selected">---------</option>
<option value="mfAiC">account 1 name</option>
</select>
---------
帐户1名称
我知道我可以手工做。我可以禁用account_1,创建一个表单字段,比如uuid,然后动态地为它设置选项。然后在表单验证或视图中验证表单数据
但是还有其他解决方案吗?由于该字段是唯一的,您有理由不将其用作主键吗?根据,使用自定义主键将导致潜在问题。但你是对的,对我来说,这可能是一个好的、简单的解决办法。
class Account2Form(forms.ModelForm):
account_1 = forms.ChoiceField(label='Account 1', choices=(1,1))
class Meta:
model = Account2
fields = (
'account_1',
)
def __init__(self, user, *args, **kwargs):
super(Account2Form, self).__init__(*args, **kwargs)
self.fields['account_1'].choices = [(acc1.uuid, acc1.account_name) for acc1 in Account1.objects.filter(user=user)]