本页中描述的以下视图提供内容编辑的基础功能:
django.views.generic.edit.FormView
django.views.generic.edit.CreateView
django.views.generic.edit.UpdateView
django.views.generic.edit.DeleteView
注
本页中的一些示例假定Author
模型已经在myapp/models.py
中定义如下:
from django.urls import reverse
from django.db import models
class Author(models.Model):
name = models.CharField(max_length=200)
def get_absolute_url(self):
return reverse('author-detail', kwargs={'pk': self.pk})
FormView
¶django.views.generic.edit.
FormView
¶显示表单的视图。 出现错误时,重新显示带验证错误的表单;成功后,重定向到一个新的URL。
祖先(MRO)
该视图从以下视图继承方法和属性:
django.views.generic.base.TemplateResponseMixin
django.views.generic.edit.BaseFormView
django.views.generic.edit.FormMixin
django.views.generic.edit.ProcessFormView
django.views.generic.base.View
示例 myapp/forms.py:
from django import forms
class ContactForm(forms.Form):
name = forms.CharField()
message = forms.CharField(widget=forms.Textarea)
def send_email(self):
# send email using the self.cleaned_data dictionary
pass
示例 myapp/views.py:
from myapp.forms import ContactForm
from django.views.generic.edit import FormView
class ContactView(FormView):
template_name = 'contact.html'
form_class = ContactForm
success_url = '/thanks/'
def form_valid(self, form):
# This method is called when valid form data has been POSTed.
# It should return an HttpResponse.
form.send_email()
return super(ContactView, self).form_valid(form)
示例 myapp/contact.html:
<form action="" method="post">{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="Send message" />
</form>
CreateView
¶django.views.generic.edit.
CreateView
¶一个视图,它显示一个表单用于创建对象,出现错误时会重新显示表单,否则保存该对象。
祖先(MRO)
该视图从以下视图继承方法和属性:
django.views.generic.detail.SingleObjectTemplateResponseMixin
django.views.generic.base.TemplateResponseMixin
django.views.generic.edit.BaseCreateView
django.views.generic.edit.ModelFormMixin
django.views.generic.edit.FormMixin
django.views.generic.detail.SingleObjectMixin
django.views.generic.edit.ProcessFormView
django.views.generic.base.View
属性
template_name_suffix
¶显示给template_name_suffix
请求的GET
页使用CreateView
的'_form'
。 例如,对于为示例template_name
模型创建对象的视图,将此属性更改为Author
会导致默认'_create_form'
为'myapp/author_create_form.html'
。
object
¶使用CreateView
时,您可以访问self.object
,这是正在被创建的对象。 如果对象尚未创建,则值将为None
。
示例 myapp/views.py:
from django.views.generic.edit import CreateView
from myapp.models import Author
class AuthorCreate(CreateView):
model = Author
fields = ['name']
示例 myapp/author_form.html:
<form action="" method="post">{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="Save" />
</form>
UpdateView
¶django.views.generic.edit.
UpdateView
¶显示用于编辑现有对象的窗体的视图,重新显示具有验证错误的窗体(如果有)并保存对象的更改。 这使用从对象的模型类自动生成的表单(除非手动指定表单类)。
祖先(MRO)
该视图从以下视图继承方法和属性:
django.views.generic.detail.SingleObjectTemplateResponseMixin
django.views.generic.base.TemplateResponseMixin
django.views.generic.edit.BaseUpdateView
django.views.generic.edit.ModelFormMixin
django.views.generic.edit.FormMixin
django.views.generic.detail.SingleObjectMixin
django.views.generic.edit.ProcessFormView
django.views.generic.base.View
属性
template_name_suffix
¶显示给template_name_suffix
请求的GET
页使用UpdateView
的'_form'
。 例如,对于示例template_name
模型更新对象的视图,将此属性更改为Author
会导致默认'_update_form'
为'myapp/author_update_form.html'
。
object
¶使用UpdateView
时,您可以访问self.object
,这是要更新的对象。
示例 myapp/views.py:
from django.views.generic.edit import UpdateView
from myapp.models import Author
class AuthorUpdate(UpdateView):
model = Author
fields = ['name']
template_name_suffix = '_update_form'
示例 myapp/author_update_form.html:
<form action="" method="post">{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="Update" />
</form>
DeleteView
¶django.views.generic.edit.
DeleteView
¶显示确认页面并删除现有对象的视图。
仅当请求方法为POST
时,才会删除给定的对象。 如果此视图是通过GET
提取的,它将显示一个确认页面,其中应包含POST到同一个网址的表单。
祖先(MRO)
该视图从以下视图继承方法和属性:
django.views.generic.detail.SingleObjectTemplateResponseMixin
django.views.generic.base.TemplateResponseMixin
django.views.generic.edit.BaseDeleteView
django.views.generic.edit.DeletionMixin
django.views.generic.detail.BaseDetailView
django.views.generic.detail.SingleObjectMixin
django.views.generic.base.View
属性
template_name_suffix
¶显示给template_name_suffix
请求的GET
页使用DeleteView
的'_confirm_delete'
。 例如,对于示例template_name
模型的删除对象的视图,将此属性更改为Author
会导致默认'_check_delete'
为'myapp/author_check_delete.html'
。
示例 myapp/views.py:
from django.views.generic.edit import DeleteView
from django.urls import reverse_lazy
from myapp.models import Author
class AuthorDelete(DeleteView):
model = Author
success_url = reverse_lazy('author-list')
示例 myapp/author_confirm_delete.html:
<form action="" method="post">{% csrf_token %}
<p>Are you sure you want to delete "{{ object }}"?</p>
<input type="submit" value="Confirm" />
</form>
2017年9月6日