Django學習-10-命名空間

不使用命名空間，且兩個APP某條url使用相同的name屬性

 

app01_urls.py

urlpatterns = [
    url(r'aaa/$', views.app01_aaa, name="index"),
]

 

app02_urls.py

urlpatterns = [
    url(r'aaa/$', views.app02_aaa, name="index"),
]

 

各自的函數中同時反解URL

#app01.views
def aaa(request):
    return  HttpResponse(reverse("index"))

#app02.views
def aaa(request):
    return  HttpResponse(reverse("index"))

 

頁面顯示結果app01.views

#app01

/app01aaa/


#app02

/app01aaa/

  

 

總結

由於name沒有作用域，Django在反解URL時，會在項目全局順序搜索，當查找到第一個name指定URL時，立即返回

我們在開發項目時，會經常使用name屬性反解出URL，當不小心定義相同的name時，可能會導致URL反解錯誤，為了避免這種事情發生，引入了命名空間

 

 

解決

使用Django提供namespace參數

 

 

 

使用命名空間

 

app.urls必須添加變量

app_name = 'app01'

 

project_urls.py

from django.conf.urls import url,include

urlpatterns = [
    url(r'^aaa', include("app01.urls"),namespace='aaa')),
    url(r'^bbb', include("app02.urls"),namespace='bbb')),
]

 

app01_urls.py

from django.conf.urls import url
from app01 import views

app_name = "app01"

urlpatterns = [
    url(r'aaa/$', views.aaa, name="index"),
]

 

app02_urls.py

from django.conf.urls import url
from app01 import views

app_name = "app02"

urlpatterns = [
    url(r'aaa/$', views.aaa, name="index"),
]

 

app01_views.py

def aaa(request):
    return HttpResponse(reverse("app01:index"))

 

app02_views.py

def aaa(request):
    return HttpResponse(reverse("app02:index"))

 

驗證

#http://127.0.0.1/aaa/aaa/

# 結果：
# /aaaaaa/


#http://127.0.0.1/bbb/aaa/

# 結果：
# /bbbaaa/