[英]How to Change CharField Choice List Behaviour
如下所示,我有CharField模型 。 用戶可以選擇ROLE_CHOICE中的一個值。
問題 :如何使某些值不可用,但您仍然可以在選擇中看到它們。
目前,我已經嘗試了以下代碼,但它使一些值不可見,這不是我想要的(我希望它們被禁用,而不是不可見)。
model.py :
ROLE_CHOICES = (
('manager', 'Manager'),
('developer', 'Developer'),
('business_analyst', 'Business analyst'),
('system_analysts', 'System analysts'),
)
class Membership (models.Model):
***OTHER FIELDS***
role = models.CharField(max_length=20, choices=ROLE_CHOICES,)
forms.py :
class MembershipForm(forms.ModelForm):
class Meta:
model = Membership
fields = '__all__'
def __init__(self, *args, **kwargs):
super(MembershipForm, self).__init__(*args, **kwargs)
self.fields['role'].choices = tuple(choice for choice in ROLE_CHOICES if choice[0] not in ['developer'])
編輯:將禁用更改為內部列表中的位置0! forms.py
class MembershipForm(forms.ModelForm):
class Meta:
model = Membership
fields = '__all__'
def __init__(self, *args, **kwargs):
super(MembershipForm, self).__init__(*args, **kwargs)
self.fields['role'].choices = tuple(choice if choice[0] not in ['developer'] else ({"label":choice[1],"disabled":True},choice[0]) for choice in ROLE_CHOICES )
這里,
tuple(choice if choice[0] not in ['developer'] else ({"label":choice[1],"disabled":True},choice[0]) for choice in ROLE_CHOICES )
會給
(('manager', 'Manager'), ( {'disabled': True, 'label': 'developer'}, Developer), ('business_analyst', 'Business analyst'), ('system_analysts', 'System analysts'))
也就是說,對於需要禁用的所有字段,您需要添加標簽和禁用屬性!
這應該做的伎倆!
希望能幫助到你!
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