前言

form 组件widgets可以生成页面上常见的控件:radio/checkbox/单选多选下拉框/日历控件等

生成页面上控件

models.py设计模型

from django.db import models
# Create your models here.
class Detail(models.Model):
user = models.CharField(max_length=30, blank=True, null=True)
age = models.IntegerField(blank=True, null=True)
email = models.EmailField(blank=True, null=True)
city = models.CharField(max_length=30, blank=True, null=True)
GENDER_CHOICES = (
('男', '男'),
('女', '女'),
)
gender = models.CharField(
max_length=30,
choices=GENDER_CHOICES
)
fancy = models.CharField(max_length=30, blank=True, null=True)
comment = models.TextField()
birth = models.DateTimeField()

DetailFrom 类

# 作者-上海悠悠 QQ交流群:717225969
# blog地址 https://www.cnblogs.com/yoyoketang/
from django.forms import widgets
from .models import Detail
from django.views import View
from django import forms
from django.shortcuts import render
class DetailFrom(forms.Form):
user = forms.CharField(
label="姓名",
required=False,
max_length=12,
min_length=3,
error_messages={"required": '不能为空'},
)
age = forms.IntegerField(label="年龄", max_value=200, min_value=0)
gender = forms.CharField(
label="性别",
widget=widgets.RadioSelect(
choices=[
('男', '男'),
('女', '女')
]
), # Radio 单选
initial='男'
)
email = forms.EmailField(label="邮箱",)
city = forms.CharField(
label="城市",
widget=widgets.Select(choices=[
("北京", "北京"),
("上海", "上海"),
("深圳", "深圳"),
("杭州", "杭州"),
]),
initial="上海"
)
birth = forms.DateTimeField(label="出生年月",
widget=forms.DateInput(attrs={'type': 'date',
'value': '2021-01-01'}))
comment = forms.CharField(label="评论",
widget=forms.Textarea)
# 单选 checkbox
xx = forms.CharField(
label="是否勾选",
widget=widgets.CheckboxInput(),
)
# 多选 checkbox
fancy = forms.MultipleChoiceField(label="爱好",
initial=[2, ],
choices=((1, 'Python'), (2, 'Selenium'), (3, "Appium")),
widget=widgets.CheckboxSelectMultiple
)
# 多选下拉框
fancy2 = forms.MultipleChoiceField(label="爱好2",
initial=[2, ],
choices=((1, 'Python'), (2, 'Selenium'), (3, "Appium"))
)

views.py视图

# 作者-上海悠悠 QQ交流群:717225969
# blog地址 https://www.cnblogs.com/yoyoketang/
class DetailView(View):
def get(self, request):
form_obj = DetailFrom()
return render(request, "detail.html", locals())
def post(self, request):
form_obj = DetailFrom(request.POST)
if form_obj.is_valid():
data = form_obj.cleaned_data()
...
msg = "保存成功"
return render(request, "detail.html", locals())
else:
# 全局钩子自定义错误提示获取
print(form_obj.errors.get('__all__')[0])
error_msg = form_obj.errors.get('__all__')[0]
return render(request, "detail.html", locals())

模板

detail.html模板

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>详情页面</title>
<style>
ul li{
list-style: none;
}
</style>
</head>
<body>
<form action="" method="POST" id="detail-form" >
{% csrf_token %}
{% for field in form_obj %}
{% if field.label == "性别" %}
{{ field.label_tag }}
{{ field.0 }} {{ field.1 }}
{% elif field.label == "爱好" %}
{{ field.label_tag }}
{% for f in field %}
{{ f }}
{% endfor %}
{% else %}
<p>
{{ field.label_tag }}
{{ field }}
{{ field.errors }}
</p>
{% endif %}
{% endfor %}
<p>
{% if msg %}
{{ msg }}
{% endif %}
</p>
<p>
<input type="submit" value="提交" >
</p>
</form>
</body>
</html>

页面生成效果

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