1 ModelForm
 2     a.  class Meta:
 3             model,                           # 对应Model的
 4             fields=None,                     # 字段
 5             exclude=None,                    # 排除字段
 6             labels=None,                     # 提示信息
 7             help_texts=None,                 # 帮助提示信息
 8             widgets=None,                    # 自定义插件
 9             error_messages=None,             # 自定义错误信息（整体错误信息from django.core.exceptions import NON_FIELD_ERRORS）
10             field_classes=None               # 自定义字段类 （也可以自定义字段）
11             localized_fields=('birth_date',) # 本地化，如：根据不同时区显示数据
12             如：
13                 数据库中
14                     2016-12-27 04:10:57
15                 setting中的配置
16                     TIME_ZONE = 'Asia/Shanghai'
17                     USE_TZ = True
18                 则显示：
19                     2016-12-27 12:10:57
20     b. 验证执行过程
21         is_valid -> full_clean -> 钩子 -> 整体错误
22
23     c. 字典字段验证
24         def clean_字段名(self):
25             # 可以抛出异常
26             # from django.core.exceptions import ValidationError
27             return "新值"
28     d. 用于验证
29         model_form_obj = XXOOModelForm()
30         model_form_obj.is_valid()
31         model_form_obj.errors.as_json()
32         model_form_obj.clean()
33         model_form_obj.cleaned_data
34     e. 用于创建
35         model_form_obj = XXOOModelForm(request.POST)
36         #### 页面显示，并提交 #####
37         # 默认保存多对多
38             obj = form.save(commit=True)
39         # 不做任何操作，内部定义 save_m2m（用于保存多对多）
40             obj = form.save(commit=False)
41             obj.save()      # 保存单表信息
42             obj.save_m2m()  # 保存关联多对多信息
43
44     f. 用于更新和初始化
45         obj = model.tb.objects.get(id=1)
46         model_form_obj = XXOOModelForm(request.POST,instance=obj)
47         ...
48
49         PS: 单纯初始化
50             model_form_obj = XXOOModelForm(initial={...})

 1 # -*- coding: utf-8 -*-
 2 from __future__ import unicode_literals
 3
 4 from django.shortcuts import render
 5 from django import forms
 6 from django.forms import fields
 7 from app01 import models
 8
 9 # Create your views here.
10 class UserInfoForm(forms.Form):
11     user = fields.CharField(max_length=32)
12     pwd = fields.CharField(max_length=32)
13     email = fields.EmailField(max_length=32)
14     usertype = fields.ChoiceField(
15         choices=models.UserType.objects.values_list('id', 'caption')
16     )
17     def __init__(self, *args, **kwargs):
18         super(UserInfoForm, self).__init__(*args, **kwargs)
19         self.fields['usertype'].choices = models.UserType.objects.all('id', 'caption')
20
21 def index(request):
22     if request.method == 'GET':
23         obj= UserInfoForm()
24         return render(request,'index.html',{'obj':obj})
25     if request.method =='POST':
26         obj = UserInfoForm(request.POST)
27         obj.is_valid()
28         obj.errors
29         models.UserInfo.objects.create(**obj.cleaned_data)
30         #models.UserInfo.objects.filter(id=1).update(**obj.cleaned_data)
31         return  render(request,'index.html',{'obj':obj})

 1 # -*- coding: utf-8 -*-
 2 from __future__ import unicode_literals
 3
 4 from django.shortcuts import render
 5 from django import forms
 6 from django.forms import fields as Ffields
 7 from django.forms import widgets as Fwidegets
 8 from app01 import models
 9
10 # Create your views here.
11 class UserInfoModelForm(forms.ModelForm):
12      is_rem = Ffields.CharField(
13          widget=Fwidegets.CheckboxInput()
14      )
15      class Meta:
16          model = models.UserInfo
17          fields = '__all__'
18          #fields = ['username','pwd']  选取
19          #exclude = ['username']    排除
20          labels = {
21              'user':'用户名',
22              'pwd':'密码',
23              'email':'邮箱',
24          }
25          help_texts = {
26              'user':'111111'
27          }
28          # widgets={29          #     'user':Fwidegets.Textarea(attrs={'style':'background-color:blue'})
30          # }
31          error_messages={
32              '__all__':{
33
34              },
35              'user':{'required':'用户名不能为空'}
36          }
37          # field_classes={38          #     'email':Ffields.URLField
39          # }
40      def clean_username(self):
41          old = self.cleaned_data['user']
42          print 'old is :',old
43          return old
44
45
46 def index(request):
47     if request.method == 'GET':
48         obj= UserInfoModelForm()
49         return render(request,'index.html',{'obj':obj})
50
51     if request.method =='POST':
52         obj = UserInfoModelForm(request.POST)
53         if obj.is_valid():
54             obj.save()
55             # instance=obj.save(False)   等价于obj.save()
56             # instance.save()
57             # obj.save_m2m()
58
59         # print obj.is_valid()
60         # print obj.cleaned_data
61         # print obj.errors
62
63         # models.UserInfo.objects.create(**obj.cleaned_data)
64         #models.UserInfo.objects.filter(id=1).update(**obj.cleaned_data)
65         return  render(request,'index.html',{'obj':obj})
66
67 def user_list(request):
68     li = models.UserInfo.objects.all().select_related('usertype')
69     return  render(request,'user_list.html',{'li':li})
70
71 def user_edit(request,nid):
72     #获取当前的id的信息
73     #显示用户已经存在信息
74     if request.method=="GET":
75         user_obj=models.UserInfo.objects.filter(id=nid).first()
76         mf=UserInfoModelForm(instance=user_obj)
77         return render(request, 'user_edit.html', {'mf':mf,'nid': nid})
78     if request.method=="POST":
79         user_obj = models.UserInfo.objects.filter(id=nid).first()
80         mf=UserInfoModelForm(request.POST,instance=user_obj)
81         if mf.is_valid():
82             mf.save()
83         else:
84             print mf.errors
85         return render(request, 'user_edit.html', {'mf': mf, 'nid': nid})

 1 # -*- coding: utf-8 -*-
 2 from __future__ import unicode_literals
 3
 4 from django.db import models
 5
 6 # Create your models here.
 7
 8 class UserType(models.Model):
 9     caption=models.CharField(max_length=32)
10
11     def __unicode__(self):
12         return self.caption
13
14 class UserGroup(models.Model):
15     name=models.CharField(max_length=32)
16
17     def __unicode__(self):
18         return self.name
19
20 class UserInfo(models.Model):
21     user = models.CharField(max_length=32)
22     pwd = models.CharField(max_length=32)
23     email = models.EmailField(max_length=32)
24     usertype=models.ForeignKey(to='UserType',to_field='id')
25     u2g=models.ManyToManyField(UserGroup)

 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <title>Title</title>
 6 </head>
 7 <body>
 8 <form action="/index/"  method="POST">
 9     {% csrf_token %}
10     {{ obj.as_p }}
11     <p><input type="submit"  value="提交"> </p>
12     </form>
13 </body>
14 </html>

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<form action="/edit-{{ nid }}/" method="POST">{% csrf_token %}{{ mf.as_p }}<p><input type="submit" value="提交"></p></form>
</body>
</html>

 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <title>Title</title>
 6 </head>
 7 <body>
 8     <ul>
 9         {% for row in li %}
10         <li>{{ row.user }} - {{ row.usertype.caption}}--<a href="/edit-{{ row.id }}/">编辑</a></li>
11         {% endfor %}
12     </ul>
13 </body>
14 </html>