[英]Field 'id' expected a number but got <QueryDict: {'csrfmiddlewaretoken':
我有這個錯誤,我無法解決問題
查看.PY
def projects_add(request, client_id):
if request.method == 'POST':
form = ProjectForm(request.POST or None)
if form.is_valid():
instance = form.save(commit=False)
client = Clients.objects.get(pk=client_id)
instance.client = client
instance.created_date = datetime.date.today()
instance.status = 'Análise'
instance.save()
messages.success(request,'Projeto adicionado')
else:
messages.error(request,'Ocorreu um erro!')
return HttpResponseRedirect(reverse('projects'))
else:
form = ProjectForm(client_id)
all_projects = Project.objects.all()
return render(request,'projects.html',{'form':form,
'all_projects':all_projects})
FORMS.PY
class ProjectForm(ModelForm):
class Meta:
model = Project
fields = ['owner','farm','warranty','modal','culture','value','final_date']
def __init__(self, client_id, *args,**kwargs):
super(ProjectForm, self).__init__(*args,**kwargs)
self.fields['value'].required = False
self.fields['final_date'].required = False
self.fields['farm'].queryset = Farm.objects.filter(client=client_id)
self.fields['warranty'].queryset = Farm.objects.filter(client=client_id)
for field_name, field in self.fields.items():
field.widget.attrs['class'] = 'form-control'
模型.PY
class Project(models.Model):
modal_types = [('CUSTEIO AGRÍCOLA','Custeio Agrícola'),('CUSTEIO PECUÁRIO','Custeio Pecuário'),('INVESTIMENTO AGRÍCOLA','Investimento Agrícola'),('INVESTIMENTO PECUÁRIO','Investimento Pecuário'),('FGPP','FGPP')]
farm = models.ManyToManyField(Farm, related_name='project_farm',verbose_name='Propriedade beneficiada')
client = models.ForeignKey(Clients, on_delete=models.CASCADE, related_name='project_client',default=None,null=True, verbose_name='Cliente')
owner = models.ForeignKey(Owner, on_delete=models.CASCADE, related_name='project_bidder',default=None,null=True, verbose_name='Proponente')
warranty = models.ManyToManyField(Farm, related_name='project_warranty',default=None, verbose_name='Propriedade de garantia')
modal = models.CharField(max_length=100,default=None,choices=modal_types, null=True, verbose_name='Tipo')
culture = models.CharField(max_length=50,null=True, verbose_name='Cultura')
status = models.CharField(max_length=50,null=True, verbose_name='Status')
created_date = models.DateField(null=True, verbose_name='Data de criação')
value = models.FloatField(max_length=10,null=True, verbose_name='Valor financiado')
final_date = models.DateField(default=None,null=True, verbose_name='Fim do contrato')
追溯
上述異常是以下異常的直接原因:
回溯(最近調用最后):文件“C:\Users\luizh\anaconda3\envs\env\lib\site-packages\django\core\handlers\exception.py”,第 47 行,在內部響應 = get_response(request ) 文件“C:\Users\luizh\anaconda3\envs\env\lib\site-packages\django\core\handlers\base.py”,第 181 行,在 _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs ) 文件“C:\Users\luizh\Desktop\Novo Sistema\ATR\projects\views.py”,第 30 行,projects_add 形式 = ProjectForm(request.POST 或無)文件“C:\Users\luizh\Desktop\ Novo Sistema\ATR\projects\forms.py",第 16 行,在init self.fields['farm'].queryset = Farm.objects.filter(client=client_id) File "C:\Users\luizh\anaconda3\envs \env\lib\site-packages\django\db\models\manager.py",第 85 行,在 manager_method return getattr(self.get_queryset(), name)(*args, **kwargs) File "C:\Users \luizh\anaconda3\envs\env\lib\site-packages\django\db\models\query.py”,第 974 行,在過濾器返回 self._filter_or_exclude(False, args, kwargs) 文件“C:\Users\l uizh\anaconda3\envs\env\lib\site-packages\django\db\models\query.py”,第 992 行,在 _filter_or_exclude clone._filter_or_exclude_inplace(negate, args, kwargs) 文件“C:\Users\luizh\anaconda3 \envs\env\lib\site-packages\django\db\models\query.py”,第 999 行,在 _filter_or_exclude_inplace self._query.add_q(Q(*args, **kwargs)) 文件“C:\Users\ luizh\anaconda3\envs\env\lib\site-packages\django\db\models\sql\query.py”,第 1375 行,在 add_q 子句中,_ = self._add_q(q_object, self.used_aliases) File “C: \Users\luizh\anaconda3\envs\env\lib\site-packages\django\db\models\sql\query.py", line 1396, in add_q child_clause, needed_inner = self.build_filter( File "C:\Users\ luizh\anaconda3\envs\env\lib\site-packages\django\db\models\sql\query.py”,第 1329 行,在 build_filter condition = self.build_lookup(lookups, col, value) File “C:\Users \luizh\anaconda3\envs\env\lib\site-packages\django\db\models\sql\query.py”,第 1180 行,在 build_lookup lookup = lookup_class(lhs, rhs) 文件“C:\Users\luizh\ anaconda3\envs\env\l ib\site-packages\django\db\models\lookups.py", line 22, in init self.rhs = self.get_prep_lookup() File "C:\Users\luizh\anaconda3\envs\env\lib\site- packages\django\db\models\fields\related_lookups.py”,第 120 行,在 get_prep_lookup self.rhs = target_field.get_prep_value(self.rhs) 文件“C:\Users\luizh\anaconda3\envs\env\lib\site -packages\django\db\models\ fields_init.py ”,第 1824 行,在 get_prep_value raise e. class (TypeError: Field 'id' expected a number 但得到了 <QueryDict: {'csrfmiddlewaretoken': ['ha7mOkHl8SkjuKDx06TipoflYdFFEdZFxT3ST5DdVZYRSGkHSffTOTGWdDXWaWf1'], 'owner': ['1'], 'farm': ['4'], 'warranty : ['4'], 'modal': ['CUSTEIO AGRÍCOLA'], 'culture': ['toamte'], 'value': [''], 'final_date': ['']}>. [23 /Feb/2022 11:20:44] “POST /projetos/1 HTTP/1.1” 500 135681
我認為問題的發生是因為我用來定義查詢集的方式,但我已經嘗試了一切但它不起作用。
您將client_id
作為ProjectForm
構造函數的第一個參數,因此您應該使用以下方法創建ProjectForm
:
from django.shortcuts import get_object_or_404, redirect
def projects_add(request, client_id):
if request.method == 'POST':
form = ProjectForm(client_id, request.POST, request.FILES)
if form.is_valid():
client = get_object_or_404(Clients, pk=client_id)
form.instance.client = client
form.instance.created_date = datetime.date.today()
form.instance.status = 'Análise'
form.save()
return redirect('projects')
messages.success(request,'Projeto adicionado')
else:
messages.error(request,'Ocorreu um erro!')
else:
form = ProjectForm(client_id)
all_projects = Project.objects.all()
return render(request,'projects.html',{'form':form, 'all_projects':all_projects})
注意:通常最好使用
get_object_or_404(…)
[Django-doc] ,然后直接使用.get(…)
[Django-doc] 。 如果 object 不存在,例如因為用戶自己更改了 URL,get_object_or_404(…)
將導致返回HTTP 404 Not Found響應,而使用.get(…)
將導致HTTP 500 Server Error 。
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