Django ModelForm

ModelForm 用于将数据库中表的各个字段做为form进行生成及验证

视图

# views.py
def
book_modelform(reqeust):
  form = froms.BookModelForm()
  if request.method == 'POST'
    form = froms.BookModelForm(request.POST)
    if form.is_valid():
      form.save()
  return render(request, 'app01/book_form.html', {'book_form':form})

自定义的forms.py

# froms.py

from app01 import models  # 导入models

class BookModelForm(forms.ModelForm):
  class Meta:
    model = models.Book
    fields = ('name', 'publish_date')  # 设置fields则处理指定的字段
    # exclude = ()  # exclude指排除哪些字段,如果要显示所有字段使用exclude = ()

  widgets = {
    'name' : forms.TextInput(attrs={'class':'form-control', 'placeholder':'请输入姓名'})  # 给字段加属性
    }

  # 扩展,给ModelForm中所有的标签都加上样式
   def __init__(self, *args, **kwargs):
super(BookModelForm, self).__init__(*args, **kwargs)
       for field_name in self.base_fields:
field = self.base_fields[field_name]
field.widget.attrs.update({'class': 'form-control'})


数据库

# models.py
class Book(models.Model):
  name = models.CharField(max_length=128)
  authors = models.ManytoManyField(Author)
  publisher = models.ForeignKey(Publisher)
  publish_date = models.DateField()

前端

# app01/book_form.html
<form action='app01/book_form.html' method='post'>
{% crsf_token %}
{{ book_form }}
</form>

 

posted @ 2018-09-14 22:25  四十不惑的编程之路  阅读(219)  评论(0编辑  收藏  举报