关于django:Django学习笔记012ModelForm和BootStrap

####1、ModelFrom能够主动生成HTML标签
1.1 主动生成ID,格局为ID_

models.py create_time = models.DateField(verbose_name='入职工夫')

HTMLid="id_create_time"<input type="text" name="create_time" class="form-control" placeholder="入职工夫" required="" id="id_create_time">

• ModelForm能够帮忙咱们生成HTML标签。

  class UserModelForm(forms.ModelForm):    class Meta:        model = models.UserInfo        fields = ["name", "password",]form = UserModelForm()

  {{form.name}}      一般的input框{{form.password}}  一般的input框

• 定义插件

  class UserModelForm(forms.ModelForm):    class Meta:        model = models.UserInfo        fields = ["name", "password",]        widgets = {            "name": forms.TextInput(attrs={"class": "form-control"}),            "password": forms.PasswordInput(attrs={"class": "form-control"}),            "age": forms.TextInput(attrs={"class": "form-control"}),        }

  class UserModelForm(forms.ModelForm):    name = forms.CharField(        min_length=3,        label="用户名",        widget=forms.TextInput(attrs={"class": "form-control"})    )    class Meta:        model = models.UserInfo        fields = ["name", "password", "age"]

  {{form.name}}      BootStrap的input框{{form.password}}  BootStrap的input框

• 从新定义的init办法，批量设置

  class UserModelForm(forms.ModelForm):    class Meta:        model = models.UserInfo        fields = ["name", "password", "age",]    def __init__(self, *args, **kwargs):        super().__init__(*args, **kwargs)                # 循环ModelForm中的所有字段，给每个字段的插件设置        for name, field in self.fields.items():            field.widget.attrs = {                "class": "form-control",                 "placeholder": field.label            }

  class UserModelForm(forms.ModelForm):    class Meta:        model = models.UserInfo        fields = ["name", "password", "age",]    def __init__(self, *args, **kwargs):        super().__init__(*args, **kwargs)                # 循环ModelForm中的所有字段，给每个字段的插件设置        for name, field in self.fields.items():            # 字段中有属性，保留原来的属性，没有属性，才减少。            if field.widget.attrs:                field.widget.attrs["class"] = "form-control"                field.widget.attrs["placeholder"] = field.label            else:                field.widget.attrs = {                    "class": "form-control",                     "placeholder": field.label                }

  class UserEditModelForm(forms.ModelForm):    class Meta:        model = models.UserInfo        fields = ["name", "password", "age",]    def __init__(self, *args, **kwargs):        super().__init__(*args, **kwargs)                # 循环ModelForm中的所有字段，给每个字段的插件设置        for name, field in self.fields.items():            # 字段中有属性，保留原来的属性，没有属性，才减少。            if field.widget.attrs:                field.widget.attrs["class"] = "form-control"                field.widget.attrs["placeholder"] = field.label            else:                field.widget.attrs = {                    "class": "form-control",                     "placeholder": field.label                }

• 自定义类

  class BootStrapModelForm(forms.ModelForm):    def __init__(self, *args, **kwargs):        super().__init__(*args, **kwargs)        # 循环ModelForm中的所有字段，给每个字段的插件设置        for name, field in self.fields.items():            # 字段中有属性，保留原来的属性，没有属性，才减少。            if field.widget.attrs:                field.widget.attrs["class"] = "form-control"                field.widget.attrs["placeholder"] = field.label            else:                field.widget.attrs = {                    "class": "form-control",                     "placeholder": field.label                }

  class UserEditModelForm(BootStrapModelForm):    class Meta:        model = models.UserInfo        fields = ["name", "password", "age",]