Django Form -- ChoiceField字段

• ChoiceField
  

  • from django import forms
    from django.forms import fields
    
    class DetailForm(forms.Form):
    
        inp = fields.ChoiceField(
            initial=2,
            choices=((1, 'SH'), (2, 'BJ'))
        )
    

• • ChoiceField字段只能返回字符，value_dic = obj.clean()的结果是{'inp': '2'}

• TypedChoiceField  -- 带有类型转换功能的下拉框

  • from django import forms
    from django.forms import fields
    
    class DetailForm(forms.Form):
    
        inp = fields.TypedChoiceField(
            coerce=lambda x: int(x),
            initial=2,
            choices=((1, 'SH'), (2, 'BJ'))
        )
    

• • 经过匿名函数的类型转换，TypedChoiceField字段返回了数字2，value_dic = obj.clean()的结果是{'inp': 2}
• MultipleChoiceField

  • from django import forms
    from django.forms import fields
    
    class DetailForm(forms.Form):
    
        inp = fields.MultipleChoiceField(
            initial=[1, 2],
            choices=((1, 'SH'), (2, 'BJ'))
        )
    

  • value_dic = obj.clean()的结果是{'inp': ['1', '2']}

• TypedMultipleChoiceField

  • from django import forms
    from django.forms import fields
    
    class DetailForm(forms.Form):
    
        inp = fields.TypedMultipleChoiceField(
            coerce=lambda x: int(x),
            initial=[1, 2],
            choices=((1, 'SH'), (2, 'BJ'))
        )
    

• • value_dic = obj.clean()的结果是{'inp': [1, 2]}