添加学员注册url
添加CustomerInfo字段,身份证信息,紧急联络人,性别
有些字段是只读的,填写信息的时候不能修改,因为如果设置了只读(添加属性disabled=true),提交的时候会报这些字段为空,导致提交错误
所以在前段添加了js代码,BeforeFormSubmit 在提交前去掉disable=true(因为数据库中有默认值,提交的时候就不会报错)
防止用户通过前端改html代码的方式改只读字段的信息,所以在form.py里面添加了一个自定义的验证方法(clean),如果只读字段提交的时候信息跟数据库中默认的不一样,就报错
(1)crm/urls.py
# crm/urls.py
from django.conf.urls import url,include
from crm import views
urlpatterns = [
url(r'^$', views.dashboard,name='sales_dashboard'),
#学员报名
url(r'^stu_enrollment/$', views.stu_enrollment,name='stu_enrollment'),
#学员注册
url(r'^enrollment/(\d+)/$', views.enrollment,name='enrollment'),
]
(2)crm/models.py
CustomerInfo表 添加字段
(3)crm/form.py
# crm/form.py
from django.forms import ModelForm
from crm import models
from django import forms
class CustomerForm(ModelForm):
class Meta:
model = models.CustomerInfo
fields = "__all__"
#不显示的字段
exclude = ['consult_content','status','consult_courses']
#只读的字段
readonly_fields = ['contact_type','contact','consultant','referral_from','source']
#django是通过“__new__”方法,找到ModelForm里面的每个字段的,然后循环出每个字段添加自定义样式
def __new__(cls, *args, **kwargs):
#cls.base_fields是一个元祖,里面是 所有的 【(字段名,字段的对象),(),()】
for field_name in cls.base_fields:
field_obj = cls.base_fields[field_name]
#添加属性
field_obj.widget.attrs.update({'class':'form-control'})
if field_name in cls.Meta.readonly_fields:
field_obj.widget.attrs.update({'disabled':'true'})
return ModelForm.__new__(cls)
#只读字段不让用户通过浏览器改html代码的方式改
def clean(self):
# 表单级别的错误
if self.errors:
raise forms.ValidationError(("Please fix errors before re-submit."))
# means this is a change form ,should check the readonly fields
if self.instance.id is not None:
#取出只读字段,是一个字符串形式
for field in self.Meta.readonly_fields:
#通过反射取出字段的值(数据库里的数据)
old_field_val = getattr(self.instance, field)
#提交过来的数据
form_val = self.cleaned_data.get(field)
#如果两个数据不匹配
if old_field_val != form_val:
#就提示只读字段不能修改
#add_error是字段级别的错误
self.add_error(field, "Readonly Field: field should be '{value}' ,not '{new_value}' ". \
format(**{'value': old_field_val, 'new_value': form_val}))
(4)crm/views.py
def enrollment(request,enrollment_id):
'''学员在线报名表地址'''
enrollment_obj = models.StudentEnrollment.objects.get(id=enrollment_id)
if request.method == 'POST':
customer_form = form.CustomerForm(instance=enrollment_obj.customer,data=request.POST)
if customer_form.is_valid():
customer_form.save()
return HttpResponse("你已成功提交报名信息,请等待审核,欢迎加入仙剑奇侠传")
else:
customer_form = form.CustomerForm(instance=enrollment_obj.customer)
return render(request,'crm/enrollment.html',locals())
(4)crm/enrollment.html
{#templates/crm/enrollment.html#}
{% extends 'index.html' %}
{% block body %}
<div class="container">
<h3>仙剑奇侠传|学员报名</h3>
<div class="panel panel-primary">
<div class="panel-heading">
<h3 class="panel-title">学员在线报名</h3>
</div>
<div class="panel-body">
<form class="form" method="post" onsubmit="return BeforeFormSubmit(this)">
{% csrf_token %}
{% for field in customer_form %}
<div class="form-group col-lg-6">
<label class="col-sm-2 control-label">{{ field.label }}</label>
<div class="col-sm-10">
{{ field }}
<span style="color: red;">{{ field.errors.0 }}</span>
</div>
</div>
{% endfor %}
<div class="form-group col-lg-6">
<label class="col-sm-2 control-label">报名班级</label>
<div class="col-sm-10">
{{ enrollment_obj.class_grade }}
</div>
</div>
<div class="form-group col-lg-6">
<label class="col-sm-2 control-label">学费</label>
<div class="col-sm-10">
{{ enrollment_obj.class_grade.course.price }}
</div>
</div>
<div class="col-sm-offset-11 col-sm-2">
<input type="submit" class="btn btn-success " value="提交">
</div>
</form>
</div>
<div class="panel-footer"><a href="http://www.cnblogs.com/derek1184405959/">zhang_derek</a></div>
</div>
</div>
<script>
function BeforeFormSubmit(ele) {
$(":disabled").removeAttr("disabled");
}
</script>
{% endblock %}
在线报名填表页面
** 修改只读字段会报错**