ModelForm--定制样式
Posted aaaajayheng1990
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利用ModelForm统一样式和个性化定制
统一样式我们用的比较多,直接上代码
class StarkModelForm(forms.ModelForm): """ 统一定制ModelForm类的样式 """ def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) for name, field in self.fields.items(): field.widget.attrs[‘class‘] = ‘form-control‘
#编写一个类,在继承父类ModelForm的继承上,对每个字段循环,给他们统一添加一个class, 这样在bootstrap下可以统一样式
class AddModelForm(StarkModelForm):
class Meta:
model = 数据库中的类
fields = ‘__all__‘ # 也可以自定义选择显示字段
不同的字段定制不同的样式
class StarkModelForm(forms.ModelForm): """ 统一定制ModelForm类的样式 """ def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) for name, field in self.fields.items(): field.widget.attrs[‘class‘] = ‘form-control‘ #编写一个类,在继承父类ModelForm的继承上,对每个字段循环,给他们统一添加一个class, 这样在bootstrap下可以统一样式
class AddModelForm(StarkModelForm):
class Meta:
model = models.UserInfo
fields = [‘name‘, ‘password‘, ‘re_pwd‘, ‘nickname‘, ‘gender‘, ‘phone‘, ‘email‘, ‘depart‘, ‘role‘]
widgets =
‘password‘: forms.PasswordInput
# widgets 设置插件, 可以根据不同的字段设置各种参数
在ModelForm中添加非model中的字段
当我们需要额外添加一个不属于model的字段时就需要注意他的定制样式和model中的字段不一样,比如添加一个用户model中没有确认密码,但是我们一般都需要确认密码这个选项时,就需要单独定制他的样式
class StarkModelForm(forms.ModelForm):
"""
统一定制ModelForm类的样式
"""
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
for name, field in self.fields.items():
field.widget.attrs[‘class‘] = ‘form-control‘
class UserInfoAddModelForm(StarkModelForm): """ 添加用户的ModelForm """ re_pwd = forms.CharField(label=‘确认密码‘, widget=forms.PasswordInput) #单独定制widget class Meta: model = models.UserInfo fields = [‘name‘, ‘password‘, ‘re_pwd‘, ‘nickname‘, ‘gender‘, ‘phone‘, ‘email‘, ‘depart‘, ‘role‘] widgets = ‘password‘: forms.PasswordInput,
验证密码和确认密码是否一致、用户名是否存在数据库中
class StarkModelForm(forms.ModelForm): """ 统一定制ModelForm类的样式 """ def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) for name, field in self.fields.items(): field.widget.attrs[‘class‘] = ‘form-control‘ class UserInfoAddModelForm(StarkModelForm): """ 添加用户的ModelForm """ re_pwd = forms.CharField(label=‘确认密码‘, widget=forms.PasswordInput) class Meta: model = models.UserInfo fields = [‘name‘, ‘password‘, ‘re_pwd‘, ‘nickname‘, ‘gender‘, ‘phone‘, ‘email‘, ‘depart‘, ‘role‘] widgets = ‘password‘: forms.PasswordInput, def clean_re_pwd(self): """ 验证密码是否一致 :return: """ password = self.cleaned_data.get(‘password‘) re_pwd = self.cleaned_data.get(‘re_pwd‘) if password != re_pwd: raise ValidationError(‘两次密码不一致‘) return re_pwd def clean_name(self): """ 验证用户是否注册 :return: """ username = self.cleaned_data[‘name‘] r_username = models.UserInfo.objects.filter(name=username) if r_username: raise ValidationError(‘用户名已存在‘) return username
利用全局钩子,在局部验证完成后对密码进行md5后再存入数据库
from web.utils.md5 import gen_md5
class UserInfoAddModelForm(StarkModelForm): """ 添加用户的ModelForm """ re_pwd = forms.CharField(label=‘确认密码‘, widget=forms.PasswordInput) class Meta: model = models.UserInfo fields = [‘name‘, ‘password‘, ‘re_pwd‘, ‘nickname‘, ‘gender‘, ‘phone‘, ‘email‘, ‘depart‘, ‘role‘] widgets = ‘password‘: forms.PasswordInput, def clean(self): """ 全局钩子,将密码加密后存入数据库 :return: """ password = self.cleaned_data.get(‘password‘) self.cleaned_data[‘password‘] = gen_md5(password) return self.cleaned_data
md5.py
import hashlib def gen_md5(origin): """ md5加密 :param origin: :return: """ ha = hashlib.md5() ha.update(origin.encode(‘utf-8‘)) return ha.hexdigest()
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