Django - 將來自不同模型的信息顯示在同一個HTML模板中

Question

我使用Django和MySQL數據庫 所以我知道views.py中的1個視圖與1個HTML模板相關聯，並且我不能將2個不同的視圖關聯到相同的模板。 我試圖創建一個包含一些關於我的數據庫統計信息的「about」視圖。 不幸的是它不起作用。

這是我到目前爲止已經做了我的觀點「關於」：

from django.shortcuts import render, get_object_or_404 
from django.http import HttpResponse 
from django.template import loader 
from .models import Pdb, StructSec 

def about(request): 

    namelist = ['Quentin LETOURNEUR', 'Yoann PAGEAUD'] 
    pdbcount = Pdb.objects.count() 
    structcount = StructSec.objects.count() 


    context = { 
     'namelist': namelist 
     'pdbcount': pdbcount 
     'structcount': structcount 
    } 

    return render(request, 'pdbapp/about.html', context) 

這裏是錯誤在我的終端返回：

Unhandled exception in thread started by <function wrapper at 0x7f25cf87a9b0> 
Traceback (most recent call last): 
    File "/usr/local/lib/python2.7/dist-packages/django/utils/autoreload.py", line 226, in wrapper 
    fn(*args, **kwargs) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/runserver.py", line 121, in inner_run 
    self.check(display_num_errors=True) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 374, in check 
    include_deployment_checks=include_deployment_checks, 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 361, in _run_checks 
    return checks.run_checks(**kwargs) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/checks/registry.py", line 81, in run_checks 
    new_errors = check(app_configs=app_configs) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/checks/urls.py", line 14, in check_url_config 
    return check_resolver(resolver) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/checks/urls.py", line 24, in check_resolver 
    for pattern in resolver.url_patterns: 
    File "/usr/local/lib/python2.7/dist-packages/django/utils/functional.py", line 35, in __get__ 
    res = instance.__dict__[self.name] = self.func(instance) 
    File "/usr/local/lib/python2.7/dist-packages/django/urls/resolvers.py", line 313, in url_patterns 
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module) 
    File "/usr/local/lib/python2.7/dist-packages/django/utils/functional.py", line 35, in __get__ 
    res = instance.__dict__[self.name] = self.func(instance) 
    File "/usr/local/lib/python2.7/dist-packages/django/urls/resolvers.py", line 306, in urlconf_module 
    return import_module(self.urlconf_name) 
    File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module 
    __import__(name) 
    File "/home/yoann/Projet_BD_M2BI/PDBWebsite/PDBWebsite/urls.py", line 18, in <module> 
    from pdbapp.views import * 
    File "/home/yoann/Projet_BD_M2BI/PDBWebsite/pdbapp/views.py", line 52 
    'pdbcount': pdbcount 
      ^
SyntaxError: invalid syntax 

我的Django的殼檢查下面的命令工作，因爲他們應該：

Pdb.objects.count() 
StructSec.objects.count() 

我的觀點的語法似乎對我好......

有人建議我要補充「poll_id」我的看法功能是這樣的：

def about(request,poll_id): 

這是什麼「poll_id」？這是從哪裏來的？

如果有人對發生了什麼有什麼想法，我會非常感謝一個詳細的答案/解決方案，因爲我是一名Django初學者。

Answer 1

你缺少逗號：

context = { 
    'namelist': namelist, 
    'pdbcount': pdbcount, 
    'structcount': structcount 
}