• Django之form


    单选按钮组
    grade=forms.ChoiceField(label='grade',required=True,widget=forms.RadioSelect,choices=GRADE_CHOICES)
    下拉列表框
    grade=forms.ChoiceField(label='grade',required=True,widget=forms.Select,choices=GRADE_CHOICES)
    复选按钮组
    grade=forms.MultipleChoiceField(label='grade',required=True,widget=forms.CheckboxSelectMultiple(),choices=GRADE_CHOICES)

    单复选框

    CheckboxInput 

    文本域
    message = forms.CharField(label='留言内容',widget=forms.Textarea)

    可多选的下拉列表框,,功能强大,占地大不太好看
    SelectMultiple

     

    select 下拉列表框,单选
    <p>
    {% for radio in form.grade %}
    <div class="form-group">
        {{ radio }}
    </div>
    {% endfor %}
    </p>
    文本域
    message = forms.CharField(label='留言内容',widget=forms.Textarea)
    表单和model联动,单选下拉对象manager,多选对象databases,上传文件attachment
    class CreatetaskForm(forms.Form):
        creater = forms.CharField(label=u"创建者",widget=BootstrapUneditableInput())
        manager = forms.ModelChoiceField(queryset=Manager.objects.all(),required=True,label=u"项目负责人",error_messages={'required': u'必选项'},)  
        databases = forms.ModelMultipleChoiceField(queryset=Database.objects.order_by('id'),required=True,label=u"数据库",error_messages={'required': u'至少选择一个'},widget=forms.CheckboxSelectMultiple,)    
        sql = forms.CharField(required=False,label=u"执行SQL",widget=forms.Textarea(attrs={'placeholder':"请在表名前加上schema,如hospital要写成p95169.hospital",'rows':5,'style':"100%",}),)
        desc = forms.CharField(required=False,label=u"描述",widget=forms.Textarea(attrs={'placeholder':"如果不是执行SQL(如数据的导入导出等),一定要在描述里说清楚",'rows':5,'style':"100%",}),) 
        attachment = forms.FileField(required=False,label=u"附件",help_text=u"如果SQL文本过长,超过2000个字符,请上传附件")
        def clean(self):
            if not self.is_valid():
                raise forms.ValidationError(u"以下红色标记部分为必选项")
            elif self.cleaned_data['sql'] == u'' and self.cleaned_data['desc'] == u'' :
                raise forms.ValidationError(u"如果执行SQL为空,描述为必填项")
            else:
                cleaned_data = super(CreatetaskForm, self).clean() 
            return cleaned_data
    # 单radio,值为字符串
    user = fields.CharField(initial=2,widget=widgets.RadioSelect(choices=((1,'上海'),(2,'北京'),)))
    # 单radio,值为字符串
    user = fields.ChoiceField(choices=((1, '上海'), (2, '北京'),),initial=2,widget=widgets.RadioSelect)
    # 单select,值为字符串
    user = fields.CharField(initial=2,widget=widgets.Select(choices=((1,'上海'),(2,'北京'),)))
    # 单select,值为字符串
    user = fields.ChoiceField(choices=((1, '上海'), (2, '北京'),),initial=2,widget=widgets.Select)
    # 多选select,值为列表
    user = fields.MultipleChoiceField(choices=((1,'上海'),(2,'北京'),),initial=[1,],widget=widgets.SelectMultiple)
    # 单checkbox
    user = fields.CharField(widget=widgets.CheckboxInput())
    # 多选checkbox,值为列表
    user = fields.MultipleChoiceField(initial=[2, ],choices=((1, '上海'), (2, '北京'),),widget=widgets.CheckboxSelectMultiple

     

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  • 原文地址:https://www.cnblogs.com/wangbin2188/p/6529981.html
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