this field, for use in displaying this# field in a form. By default, Django will use a "pretty"# version of the form field name, if the Field is part of a# Form.# initial -- A value to use in this Field's initial display. This value# is *not* used as a fallback if data ...
from django.forms import ModelForm class ContactForm(ModelForm): class Meta: model = Advertisement fields = ('Title', 'CustomerID') 这里的Advertisement就是之前那个ORM的模型。 第二步:OK,继续我们的表单,下一步需要做什么呢?开始在views.py里写对表单的调用吧. def remark(request): if request.metho...
from django.forms import fields from django.core.validators import RegexValidator class MyForm(Form): user = fields.ChoiceField( # choices=((1, '上海'), (2, '北京'),), initial=2, widget=widgets.Select ) def __init__(self, *args, **kwargs): super(MyForm,self).__init__(*args,...
The generated Form class will have a form field for every model field specified, in the order specified in the fields attribute. 创建的ModelForm,会根据Meta中设置的fields来自动添加字段,而字段类型应该是Form的类型,那么针对Model的每种类型会有相应的Form的类型与之映射。 model指定那个表/model fields指...
1、Django中的 forms 模块 1、forms 模块的作用 通过forms 模块,允许将表单控件与python文件相结合 2、使用 forms 模块 ①创建 forms.py 文件 ②导入 forms 模块 ③创建class,一个class对应一个表单,所有class需要继承自forms.Form ④在class中创建属性,一个属性对应一个表单控件 ...
Fields which handle relationships Creating custom fields Model Form Functions modelform_factory modelformset_factory inlineformset_factory Formset Functions formset_factory The form rendering API The low-level render API Built-in-template form renderers ...
_clean_fields() self._clean_form() self._post_clean() -self._clean_fields():核心代码,局部钩子执行位置 value = field.clean(value)# 字段自己的校验规则 self.cleaned_data[name] = value #把校验后数据放到cleaned_data if hasattr(self, 'clean_%s' % name): # 判断有没有局部钩子 value = ...
This topic has come up in the past: <https://groups.google.com/d/msg/django-developers/eN7FvAvTsew/kLQ4FdE3fWAJ> I proposeforms.fields.NullBooleanFieldbe altered to handle required. That is change validate to: def validate(self, value): if value is None and self.required: raise Val...
import re from django.forms import Form from django.forms import widgets from django.forms import fields from django.core.exceptions import ValidationError # 自定义验证规则 def mobile_validate(value): mobile_re = re.compile(r'^(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}...
更多模版中渲染有关可以参考:https://docs.djangoproject.com/en/2.0/topics/forms/#looping-over-the-form-s-fields form 渲染时的注意事项: 隐藏一个字段,不渲染它 pass form 校验 所谓校验,就是绑定到form对象的数据,校验其是否符合定义的约束条件。 关于校验方面,要明白的点: ...