一、制作添加页面
1、前置准备
（1）修改增删改的视图函数名
class ModelStark(object):
def add_view(self, request):
return HttpResponse("add")
def delete_view(self, request, id):
return HttpResponse("delete")
def change_view(self, request, id):
return HttpResponse("change")
（2）调整路由对应的视图函数
class ModelStark(object):
def get_urls_2(self):
temp = []
# 用name取别名app名+model名+操作名可以保证别名不会重复
model_name = self.model._meta.model_name
app_label = self.model._meta.app_label
temp.append(url(r"^add/", self.add_view, name="%s_%s_add" % (app_label, model_name)))
temp.append(url(r"^(\d+)/delete/", self.delete_view, name="%s_%s_delete" % (app_label, model_name)))
temp.append(url(r"^(\d+)/change/", self.change_view, name="%s_%s_change" % (app_label, model_name)))
temp.append(url(r"^$", self.list_view, name="%s_%s_list" % (app_label, model_name)))
return temp
（3）在查看页面添加add按钮
首先在list_view中获取add_url:
class ModelStark(object):
'''代码省略'''
def get_add_url(self):
model_name = self.model._meta.model_name
app_label = self.model._meta.app_label
_url = reverse("%s_%s_add" % (app_label, model_name))
return _url
def list_view(self, request):
'''代码省略'''
# 构建一个查看url
add_url = self.get_add_url()
return render(request, "list_view.html", locals())
在list_view.html中添加“添加数据”按钮：
<body>
<h4>数据列表</h4>
<div class="container">
<div class="row">
<div class="col-md-9">
{# <a href="add/" class="btn btn-primary">添加数据</a> #}
<a href="{{ add_url }}" class="btn btn-primary">添加数据</a>
"""代码省略"""
</body>
</html>
（4）重构模型
由于之前的表结构过于简单，在进行添加操作时很多问题无法发现，在这里重新构造模型（一对一、一对多、多对多都有）。
from django.db import models # Create your models here. class Author(models.Model): nid = models.AutoField(primary_key=True) name = models.CharField(max_length=32) age = models.IntegerField() # 与AuthorDetail建立一对一的关系 authorDetail = models.OneToOneField(to="AuthorDetail", on_delete=models.CASCADE) def __str__(self): return self.name class AuthorDetail(models.Model): nid = models.AutoField(primary_key=True) birthday = models.DateField() telephone = models.BigIntegerField() addr = models.CharField(max_length=64) def __str__(self): return self.telephone class Publish(models.Model): nid = models.AutoField(primary_key=True) name = models.CharField(max_length=32) city = models.CharField(max_length=32) email = models.EmailField() def __str__(self): return self.name class Book(models.Model): nid = models.AutoField(primary_key=True) title = models.CharField(max_length=32) publishDate = models.DateField() price = models.DecimalField(max_digits=5, decimal_places=2) # 与Publish建立一对多的关系,外键字段建立在多的一方 publish = models.ForeignKey(to="Publish", to_field="nid", on_delete=models.CASCADE) # 与Author表建立多对多的关系,ManyToManyField可以建在两个模型中的任意一个，自动创建第三张表 authors = models.ManyToManyField(to='Author', ) def __str__(self): return self.title