目前我需要從更改視圖中刪除一些字段，如果它的值為無所以我有一個取款模型的管理員，如下所示：class WithdrawalsAdminForm(forms.ModelForm): def __init__(self, *args, **kwargs): super(WithdrawalsAdminForm, self).__init__(*args, **kwargs) none_fields = [] for single_field in self.fields: self.fields[single_field].disabled = True if self.initial[single_field] == None: none_fields.append(single_field) if none_fields: for single_none_field in none_fields: self.fields.pop(single_none_field)class WithdrawalsAdmin(admin.ModelAdmin): list_display = ('get_email', 'get_phone_number', 'currency', 'method', 'amount', 'status', 'created') list_display_links = ('get_email', 'get_phone_number', 'currency', 'method', 'amount', 'status', 'created') list_filter = [WithdrawalsStatusFilter] #just a custom list filter change_form_template = 'admin/backend/withdrawals_change_form.html' form = WithdrawalsAdminForm fields = ( 'id', 'get_email', 'get_phone_number', 'get_full_name', 'currency', 'method', 'to_bank', 'to_address', 'to_card', 'amount', 'status', 'transaction_id', 'created', 'submitted', 'confirmed', ) readonly_fields = ( 'id', 'get_email', 'get_phone_number', 'get_full_name', 'created', ) def has_add_permission(self, request, obj=None): return False def get_queryset(self, request): qs = super(WithdrawalsAdmin, self).get_queryset(request) return qs.filter(Q(method=1) | Q(method=4))但它返回給我以下錯誤：“在‘WithdrawalsForm’中找不到鍵‘to_address’。選項有：金額、貨幣、方法、狀態、to_bank?！苯痤~、貨幣、方法、狀態、to_bank 在對象中的值都不是 Noneto_address 值是 None，我還嘗試打印出任何沒有的字段，if self.initial[single_field] == None:并得到正確的字段名稱（其中包括 to_address）具有 None 值。如何從更改視圖中排除具有 None 值的字段？
2 回答
拉莫斯之舞
TA貢獻1820條經驗 獲得超10個贊
您可能需要重寫 get_fields 和 get_readonly_fields 方法：
def _get_non_field_names(self, obj, candidate_fields):
for field in candidate_fields:
if hasattr(obj, field) and getattr(obj, field):
yield field
elif getattr(self, field)(obj):
yield field
def get_fields(self, request, obj=None):
form = self._get_form_for_get_fields(request, obj)
candidate_fields = self.fields if self.fields else list(form.base_fields)
fields = self._get_non_field_names(obj, candidate_fields)
readonly_fields = list(self.get_readonly_fields(request, obj))
return list(fields) + readonly_fields
def get_readonly_fields(self, request, obj=None):
candidate_readonly_fields = self.readonly_fields
readonly_fields = list(self._get_non_field_names(obj, candidate_readonly_fields))
return readonly_fields
繁星coding
TA貢獻1797條經驗 獲得超4個贊
困難的部分仍然是在自定義字段上檢查 None 值。
目前我只使用以下 get_fields 來檢查，邏輯性不大，但仍然可以從表單中刪除字段：
def get_fields(self, request, obj=None):
fields = super(WithdrawalsAdmin, self).get_fields(request, obj)
fields_list = list(fields)
if obj:
if obj.to_address is None:
fields_list.remove('to_address')
.... #and other fields
fields_tuple = tuple(fields_list)
return fields_tuple
添加回答
舉報
0/150
提交
取消