runsly 技术分享 2020-05-18

url分发

标签：django cad cas append ons from mod 增删改 lap

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)

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

app01/models.py

from django.db import models

# Create your models here.

class Order(models.Model):
    title=models.CharField(max_length=32)

app02/models.py

一、url分发

def test01(request):
    return HttpResponse("test01")

def test02(request):
    return HttpResponse("test02")

def test03(request):
    return HttpResponse("test03")

def test04(request):
    return HttpResponse("test04")

def test05(request):
    return HttpResponse("test05")

1、一级分发

urlpatterns = [
    url(r‘^Xadmin/‘,([
            url(r‘^test01/‘,test01),
            url(r‘^test02/‘, test02),
            url(r‘^test03/‘, test03),
                ],None,None))
]

2、二级分发

urlpatterns = [

    url("^Xadmin/", ([
         url(r‘^test01/‘, ([
                    url(r‘^test04/‘, test04),
                    url(r‘^test05/‘, test05),
                        ], None, None)),

         url(r‘^test02/‘, test02),
         url(r‘^test03/‘, test03),
               ], None, None)),
]

上面把url路径写死了

我们注册的模型表都存放在admin.site._registry

通过类能拿到它所在app的名字和它模型表的名字

例：

3、修改后的一级路由

    url(r‘^Xadmin/‘, (get_urls(),None,None)),

def get_urls():
    print(admin.site._registry)  # {Book:modelAdmin(Book),.......}

    temp=[]
    for model,admin_class_obj in admin.site._registry.items():
        app_name=model._meta.app_label
        model_name=model._meta.model_name

        temp.append(url(r‘^{0}/{1}/‘.format(app_name,model_name), test01,)

    return temp

4、修改后的二级路由 (对每一个模型表进行增删改查)

    url(r‘^Xadmin/‘, (get_urls(),None,None)),

def get_urls():
    print(admin.site._registry)  # {Book:modelAdmin(Book),.......}


    temp=[]
    for model,admin_class_obj in admin.site._registry.items():
        app_name=model._meta.app_label
        model_name=model._meta.model_name

        temp.append(url(r‘^{0}/{1}/‘.format(app_name,model_name), (get_urls_2(),None,None)),)

    return temp

def get_urls_2():

    temp=[]

    temp.append(url(r"^$",list_view))
    temp.append(url(r"^add/$",add_view))
    temp.append(url(r"^(\d+)/change/$",change_view))
    temp.append(url(r"^(\d+)/delete/$",delete_view))


    return temp

增删改查的视图函数：

def list_view(request):
    return HttpResponse("list_view")

def add_view(request):
    return HttpResponse("add_view")

def change_view(request,id):
    return HttpResponse("change_view")

def delete_view(request,id):
    return HttpResponse("delete_view")