22 BootStrapModelForm

方便之处在于，我们不会再一遍一遍的写form的样式了。

from django import forms

class BootStrapModelForm(forms.ModelForm):

    def __init__(self, *args, **kwargs):

        super(BootStrapModelForm, self).__init__(*args, **kwargs)

        # 统一给ModelForm生成字段添加样式

        for name, field in self.fields.items():

            field.widget.attrs['class'] = 'form-control'

如果还想自定义一些字段不添加样式，那么可以这样写：

class BootStrapModelForm:

    exclude_filed_list = []

    def __init__(self, *args, **kwargs):

        super(BootStrapModelForm, self).__init__(*args, **kwargs)

        # 统一给ModelForm生成字段添加样式

        for name, field in self.fields.items():

            if name in self.exclude_filed_list:

                continue

            field.widget.attrs['class'] = 'form-control'

class CustomerModelForm(BootStrapModelForm, forms.ModelForm):

    exclude_filed_list = ['level']  # 不需要添加样式的字段名

思考：无论在使用Form和ModelForm时，想要让页面好看，就需要将每个字段的插件中给他设置form-control样式。

class LevelForm(forms.Form):

    title = forms.CharField(

        label="标题",

        required=True,

        # widget=forms.TextInput(attrs={"class": "form-control", 'placeholder': "请输入标题"}),

    )

    percent = forms.CharField(

        label="折扣",

        required=True,

        help_text="填入0-100整数表示百分比，例如：90，表示90%"

    )

    def __init__(self,*args,**kwargs):

        super().__init__(*args,**kwargs)

        # {'title':对象,"percent":对象}

        for name,field in self.fields.items():

            field.widget.attrs['class'] = "form-control"

            field.widget.attrs['placeholder'] = "请输入{}".format(field.label)

class LevelModelForm(forms.ModelForm):

    class Meta:

        model = models.Level

        fields = ['title', 'percent']

    def __init__(self,*args,**kwargs):

        super().__init__(*args,**kwargs)

        # {'title':对象,"percent":对象}

        for name,field in self.fields.items():

            field.widget.attrs['class'] = "form-control"

            field.widget.attrs['placeholder'] = "请输入{}".format(field.label)

巴特西

22 BootStrapModelForm

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