今年回不了家了，看不到农村老家CBD的繁华了，去年在家呆了一个月
今年算是还回去了，出来混迟早都是要还的，只是想不到回来的这么快，哈哈
在深圳第三次过年，本来计划春节前写完15篇django笔记，现在看来是完不成了，
提前祝大家新年快乐
希望明年疫情早点结束，口罩真是带的够够的了。。。
1.基于模型的form
models.py
sex_choice = (
('男', 'Male'),
('女', 'Famale'),
)
# form表单测试 20200109
class Userinfo(models.Model):
name=models.CharField(max_length=100)
age=models.IntegerField(blank=True,null=True)
sex = models.CharField(max_length=3, choices=sex_choice) #默认为male
def __str__(self):
"""Return a string representation of the model."""
return self.name
forms.py
from django import forms
from .models import Userinfo,sex_choice
class UserinfoForm(forms.ModelForm):
class Meta:
model = Userinfo
fields='__all__'
#fields=['name','sex']
#exclude=('age',)
help_texts = {
'name': '请输入姓名',
'sex':'请选择性别',
'age':'请输入年龄'
}
# 在页面上显示的label名称，加*表示必填，因为age可以为空
labels = {"name": "*姓名","age":"年龄","sex":"*性别"}
# widgets = {
# 'name': forms.Textarea(attrs={'cols': 80, 'rows': 20}),
# }
views.py
from .forms import UserinfoForm
def userinfo(request):
if request.method == 'GET':
form = UserinfoForm()
else:
form = UserinfoForm(data=request.POST)
if form.is_valid():
new_user=form.save(commit=False) #commit=false表示暂时不提交
new_user.age=100 #设置其他字段的值，然后保存
new_user.save()
return HttpResponse('<h3>新增用户信息成功</h3>')
#return redirect("myapp:titles")
content = {'form': form}
return render(request, 'myapp/userinfo.html', content)
userinfo.hrml
<h1>新增用户</h1>
<form action="{% url 'myapp:userinfo'%}" method="post">
{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="提交">
</form>
url.py
path('userinfo/',views.userinfo,name='userinfo'),
path('userinfo2/',views.userinfo2,name='userinfo2'),
path('userinfo3/',views.userinfo2,name='userinfo3'),
2.自定义form
forms.py
# 自定义forms2
from .models import sex_choice
class UserinfoFrom2(forms.Form):
name = forms.CharField(max_length=100)
age = forms.IntegerField(required=False,max_value=100,min_value=1)
sex = forms.CharField(max_length=3,
widget=forms.Select(choices=sex_choice)) # 默认为male
views.py
#2.表单测试2
from .forms import UserinfoFrom2
from .models import Userinfo
def userinfo2(request):
if request.method == 'GET':
form = UserinfoFrom2()
else:
form = UserinfoFrom2(data=request.POST)
if form.is_valid():
data=form.cleaned_data
Userinfo.objects.create(**data)
return HttpResponse('<h3>新增用户信息成功</h3>')
content = {'form': form}
return render(request, 'myapp/userinfo2.html', content)
userinfo2.html
h1>新增用户</h1>
<form action="{% url 'myapp:userinfo2'%}" method="post">
{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="提交">
</form>
3.不使用form组件，直接写表单
userinfo3.html
<h1>新增用户</h1>
<form action="{% url 'myapp:userinfo3'%}" method="post">
{% csrf_token %}
<p>姓名：<input type="text" name="name"></p>
<p>年龄：<input type="text" name="age"></p>
<p>性别：<select name='age'>
<option value ="男">male</option>
<option value ="女">famle</option>
</select>
<input type="submit" value="提交">
</form>
userinfo3.html
from .forms import UserinfoFrom2
from .models import Userinfo
def userinfo3(request):
if request.method == 'GET':
return render(request, 'myapp/userinfo3.html')
else:
# name=request.POST['name']
# age=request.POST['age']
# sex = request.POST['sex']
Userinfo.objects.create(**request.POST)
return HttpResponse('<h3>新增用户信息成功</h3>')
image.png
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