Django：我如何创建一个多选择表单？ [英] Django: How can i create a multiple select form?

问题描述

我是Django / Python的初学者，我需要创建一个多选择表单。我知道这很简单，但我找不到任何例子。我知道如何用一个小部件创建一个CharField，但是我会感到困惑，所有的选项都在 fields.py 。

例如，我不知道以下哪一个最适合多选择表单。

 'ChoiceField'，'MultipleChoiceField'，
'ComboField'，'MultiValueField'，
'TypedChoiceField' TypedMultipleChoiceField'
  

这里是我需要创建的形式。

 < form action =method =postaccept-charset =utf-8> 
< select name =countriesid =countriesclass =multiselectmultiple =multiple> 
< option value =AUTselected =selected>奥地利< / option> 
< option value =DEUselected =selected>德国< / option> 
< option value =NLDselected =selected>荷兰< / option> 
< option value =USA> United States< / option> 
< / select> 
< p>< input type =submitvalue =Continue& rarr>< / p> 
< / form> 
  

编辑：

另一个小问题。如果我想添加到每个选项一个属性，如数据：

 < option value = AUTselected =selecteddata-index = 1> Austria< / option> 
  

我如何做ti？

感谢任何帮助！

解决方案

我认为CheckboxSelectMultiple应该工作。根据你的问题，在你的forms.py wirite以下代码

 从django导入表单
 
 CountryForm（forms.Form）：
 OPTIONS =（
（AUT，Austria），
（DEU，Germany），
 ，Neitherlands），
）
 Countries = forms.MultipleChoiceField（widget = forms.CheckboxSelectMultiple，
 choices = OPTIONS）
  

编辑：我想到编写完整的代码流，这样你可以更好地理解它。因为您可能会感到困惑

在您的Views.py中定义以下功能

  def countries_view（request）：
如果request.method =='POST'：
 form = CountryForm（request.POST）
如果form.is_valid（）：
 countries = form.cleaned_data.get（'countries'）
＃用你的结果做某事
 else：
 form = CountryForm 
 
 return render_to_response（'render_country.html '，{'form'：form}，
 context_instance = RequestContext（request））
  

在您的render_country.html

 < form method ='post'> 
 {％csrf_token％} 
 {{form.as_p}} 
< input type ='submit'value ='submit'> 
< / form> 
  

我希望这有帮助。让我知道这是否是你期待的。

I'm beginner in Django/Python and i need to create a multiple select form. I know it's easy but i can't find any example. I know how to create a CharField with a widget but i get confused of all the options inside fields.py.

For example i don't know which one of the followings is best for a multiple select form.

'ChoiceField', 'MultipleChoiceField',
'ComboField', 'MultiValueField',
'TypedChoiceField', 'TypedMultipleChoiceField'

And here is the form i need to create.

        <form action="" method="post" accept-charset="utf-8">
        <select name="countries" id="countries" class="multiselect" multiple="multiple">
            <option value="AUT" selected="selected">Austria</option>
            <option value="DEU" selected="selected">Germany</option>
            <option value="NLD" selected="selected">Netherlands</option>
            <option value="USA">United States</option>
        </select>
        <p><input type="submit" value="Continue &rarr;"></p>
    </form>

EDIT:

One more small question. If i want to add to each option one more attribute like data:

 <option value="AUT" selected="selected" data-index=1>Austria</option>

How can i do ti?

Thanks for any help!

解决方案

I think CheckboxSelectMultiple should work. According to your problem, In your forms.py wirite the below code

from django import forms

class CountryForm(forms.Form):
        OPTIONS = (
                ("AUT", "Austria"),
                ("DEU", "Germany"),
                ("NLD", "Neitherlands"),
                )
        Countries = forms.MultipleChoiceField(widget=forms.CheckboxSelectMultiple,
                                             choices=OPTIONS)

EDIT : I thought of writing complete code flow So that you can understand it better. Because you might get confuse

In your Views.py define the following function

def countries_view(request):
    if request.method == 'POST':
        form = CountryForm(request.POST)
        if form.is_valid():
            countries = form.cleaned_data.get('countries')
            # do something with your results
    else:
        form = CountryForm

    return render_to_response('render_country.html', {'form':form },
        context_instance=RequestContext(request))

In your render_country.html

<form method='post'>
    {% csrf_token %}
    {{ form.as_p }}
    <input type='submit' value='submit'>
</form>

I hope this helps.Let me know if it that is what you were expecting.

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