Question

我有一个BooleanField，在给定某些条件的情况下，需要将其禁用。

即使输入被禁用，如何提交输入

first time form submit
second time form submit会忽略禁用的布尔字段

views.py

{
  "name": "LazyLoading",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node node_modules/react-native/local-cli/cli.js start",
    "test": "jest"
  },
  "dependencies": {
    "native-base": "^2.12.1",
    "react": "^16.8.6",
    "react-loadable": "^5.5.0",
    "react-native": "^0.59.9",
    "react-native-navigation": "^2.21.0",
    "react-redux": "^7.0.3",
    "redux": "^4.0.1",
    "redux-form": "^8.2.3",
    "redux-thunk": "^2.3.0"
  },
  "devDependencies": {
    "@babel/core": "7.4.5",
    "@babel/runtime": "7.4.5",
    "babel-jest": "24.8.0",
    "jest": "24.8.0",
    "metro-react-native-babel-preset": "0.54.1",
    "react-test-renderer": "^16.8.6"
  },
  "jest": {
    "preset": "react-native"
  }
}

每次禁用的BooleanField都返回false，即使已选择
i am also referred this link

forms.py

def test(request):
    form = InformationForm()
    test_table = TestTable.objects.get(id=1)
    result = ''

    if test_table.status == True:
        result = True
        form.fields['agree'].initial = True    
        form.fields['agree'].widget.attrs['disabled'] = True
        # form.fields['agree'].widget.attrs={'onclick': 'return false','style':'opacity: 0.4 !important'}

    if request.method == "POST":
        post_form = InformationForm(request.POST)
        result = post_form['agree'].value()
        text = post_form['text'].value()

        if post_form['agree'].value() == True:
            t = TestTable.objects.filter(id=1).first()
            t.status = 1
            t.save()

            post_form.fields['agree'].initial = True  
            post_form.fields['agree'].widget.attrs['disabled'] = True
           #post_form.fields['agree'].widget.attrs={'onclick': 'return false','style':'opacity: 0.4 !important'}
            return render(request,'test.html',context={'form':post_form,'result':result,'text':text})

    text = form['text'].value()
    return render(request,'test.html',context={'form':form,'result':result})

Answer 1

这是Django的一项有意设计决定，因此用户无法编辑HTML输入并删除disabled属性，这可以使用户更新其不打算更新的值。来自docs：

disabled布尔参数设置为True时，会使用disabled HTML属性禁用表单字段，以使用户无法对其进行编辑。即使用户篡改了提交给服务器的字段的值，也将忽略该字段，而使用表单的初始数据中的值。

我建议更新表单类的__init__()方法，以便仅在要禁用该字段时才添加disabled属性。

django禁用布尔字段未在POST方法上提交

1 个答案: