Django, Forms
使用forms完成了用户登录
1、创建model
class User(User):
pass
这里使用了django提供的User类，直接继承
2、创建UserForm类
class SigninFrom(forms.Form):
user_name = forms.CharField()
user_email = forms.EmailField()
user_password = forms.CharField()
3、完成模板
<form action="{% url 'permission:signin' %}" accept-charset="UTF-8" method="post">
<input name="utf8" type="hidden"
value="✓"/>
{% csrf_token %}
<dl class="form-group mt-0">
<dt class="input-label">
<label class="form-label f5" for="user[login]">用户名</label>
</dt>
<input type="text" name="user_name" id="user_name"
class="form-control form-control-lg input-block"
placeholder="{{ default_name }}" autofocus>
</dl>
<dl class="form-group">
<dt class="input-label">
<label class="form-label f5" for="user[email]">Email</label>
</dt>
<dd>
<input type="text" name="user_email" id="user_email"
class="form-control form-control-lg input-block js-email-notice-trigger"
placeholder="you@example.com">
</dd>
</dl>
<dl class="form-group">
<dt class="input-label">
<label class="form-label f5" for="user[password]">密码</label>
</dt>
<dd>
<input type="password" name="user_password" id="user_password"
class="form-control form-control-lg input-block"
placeholder="Create a password">
</dd>
</dl>
<button class="btn-mktg btn-primary-mktg btn-large-mktg f4 btn-block" type="submit"
data-ga-click="Signup, Attempt, location:teams;">在Bodydetect上注册
</button>
</form>
- 注意，这里三者要统一用一样的name，否则会接收不到数据
views.py如何编写
def fun(request):
if request.method == 'GET':
...
return ...
if request.method == 'POST':
...
return
- 使用forms.cleaned_data访问数据，返回字典类型
你还可以
- 从view中返回form，django会自动为你渲染，当然，十分丑陋
例如：
<form action = "{% url 'permission:signin' %}" method="post">
{% csrf_token %}
<table>
{{ form }}
</table>
<button class="btn-mktg btn-primary-mktg btn-large-mktg f4 btn-block" type="submit"
data-ga-click="Signup, Attempt, location:teams;">在Bodydetect上注册
</button>
</form>
只需要为form保留位置
渲染结果：
不使用自动渲染
使用ModelForm类
views.py
from django.db import models
class Article(models.Model):
author = models.CharField(max_length = 150)
title = models.CharField(max_lengeth = 100)
content = models.CharField(max_lengeth = 10000)
time = models.TimeField( )
model.py
from django.forms import ModelForm
class Article(ModelForm):
class Meta:
model = Article
fields = ['author', 'title', 'content', 'time']
save方法
- 每个ModelForm还有一个save()方法，此方法根据绑定到表单的数据创建并保存数据库对象。
# Create a form instance with POST data.
>>> f = AuthorForm(request.POST)
# Create, but don't save the new author instance.
>>> new_author = f.save(commit=False)
# Modify the author in some way.
>>> new_author.some_field = 'some_value'
# Save the new instance.
>>> new_author.save()
# Now, save the many-to-many data for the form.
>>> f.save_m2m()