from django.db import modelsclass CustomerInfo(models.Model):"""客户表"""name = models.CharField(max_length=64)contact_type_choices = ((0,'QQ'),(1,'微信'),(2,'手机'))contact_type = models.SmallIntegerField(choices=contact_type_choices)contact = models.CharField(max_length=64,unique=True,verbose_name="联系方式")source_choices = ((0,'QQ群'),(1,'51CTO'),(2,'百度推广'),(3,'知乎'),(4,'转介绍'),(5,'其它'))source = models.SmallIntegerField(choices=source_choices,verbose_name="客户来源")referral_from = models.ForeignKey("self",blank=True,null=True,verbose_name="转介绍",on_delete=models.CASCADE)consult_courses = models.ManyToManyField("Course",verbose_name="咨询课程")consult_content = models.TextField(verbose_name="咨询内容")status_choices = ((0, '未报名'), (1, '已报名'), (2, '已退学'))status = models.SmallIntegerField(choices=status_choices,verbose_name="状态")consultant = models.ForeignKey("UserProfile",verbose_name="课程顾问",on_delete=models.CASCADE)date = models.DateField(auto_now_add=True)def __str__(self):return self.name

from django.forms import ModelForm
from crm import models
from django import formsclass CustomerForm(ModelForm):class Meta:model = models.CustomerInfofields = '__all__'exclude = ['consult_content', 'status', 'consult_courses']readonly_fields = ['contact_type','contact','consultant','referral_from','source']   #并不是真正的设置可读模式，而是用于自定制def __new__(cls, *args, **kwargs):      # cls 就是实例(self)for field_name in cls.base_fields:field_obj = cls.base_fields[field_name]field_obj.widget.attrs.update({'class':'form-control'})if field_name in cls.Meta.readonly_fields:field_obj.widget.attrs.update({'disabled':'true'})# print(cls.Meta)# print(cls.Meta.exclude)return ModelForm.__new__(cls)def clean(self):"""对数据进行验证，此方法需要在form.is_valid()后才能生效"""# print("cleaned_dtat:", self.cleaned_data)if self.errors:  # 表单级别的错误raise forms.ValidationError(("Please fix errors before re-submit."))for field in self.Meta.readonly_fields:old_field_val = getattr(self.instance,field)new_form_val = self.cleaned_data[field]if old_field_val != new_form_val:self.add_error(field,"Readonly Field: field should be '{value}' ,not '{new_value}' ".\format(**{'value':old_field_val,'new_value':new_form_val}))

def enrollment(request,enrollment_id):"""②学员确认信息"""customer_form = forms.CustomerForm(instance=enrollment_obj.customer)if request.method == "POST":customer_form = forms.CustomerForm(instance=enrollment_obj.customer,data=request.POST)if customer_form.is_valid():customer_form.save()return HttpResponse('合同正在审核中，请等候...')return render(request,'crm/enrollment.html',locals())

class Meta:model = models.UserInfofields = '__all__'# fields =  ['username','email']# exclude = ['username']labels = {'username': '用户名','email': '邮箱',}help_texts = {'username': '...'}widgets = {'username': Fwidgets.Textarea(attrs={'class': 'c1'})}error_messages = {'__all__':{},'email': {'required': '邮箱不能为空','invalid': '邮箱格式错误..',}}field_classes = {# 'email': Ffields.URLField}# localized_fields=('ctime',)