Python Django未在模板中提供HTML表（word计数器web应用程序）_Python_Django

Python Django未在模板中提供HTML表（word计数器web应用程序）

python django

Python Django未在模板中提供HTML表（word计数器web应用程序）,python,django,Python,Django,摘要： Django没有呈现一个基本的2列11行HTML表格，该表格包含大型文本文件中最常用的10个单词（Alice and Wonderland，这是一个公共领域的作品）。但是现在桌子是空的详细信息：当前在网页上呈现的表如下所示。在那张图中，注意右下角，桌子是空的当web用户导航到http://127.0.0.1:8000/counters 然而，第二张图片中的问题是博客文章“lorem ipsum”的内容是空的这是我的父母的最高级别： from django.contrib impo

摘要：

Django没有呈现一个基本的2列11行HTML表格，该表格包含大型文本文件中最常用的10个单词（Alice and Wonderland，这是一个公共领域的作品）。但是现在桌子是空的

详细信息：

当前在网页上呈现的表如下所示。在那张图中，注意右下角，桌子是空的

当web用户导航到

http://127.0.0.1:8000/counters

然而，第二张图片中的问题是博客文章“lorem ipsum”的内容是空的

这是我的父母的最高级别：

from django.contrib import admin
from django.urls import path, include
from django.conf import settings
from django.conf.urls.static import static

urlpatterns = [
   path('admin/', admin.site.urls),
   # path('', include('mortems.urls')),
   path('', include('redactors.urls')),
   path('', include('posts.urls')),   
   path('', include('counters.urls')),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

from django.shortcuts import render
from collections import Counter
import re
from nltk.corpus import stopwords

def counters(request, text=""):
   """
   This function processes the top 10 most common words in a text file and then renders them.
   """
   text = open("counters/Alice.txt", "r").read().lower()
   stoplist = stopwords.words('english')
   stoplist.extend(["said","gutenberg", "could", "would",])
   clean = []
   for word in re.split(r"\W+",text):
       if word not in stoplist:
           clean.append(word)
   top_10 = Counter(clean).most_common(10)
   return render(request, 'alls/landings.html', {'top_10': top_10})

from django.urls import path, include
from . import views


urlpatterns = [
   path('counters', views.counters, name='counters'),
]

  <h1>Counting the words!</h1>
  This should only show inside landing.html
  <div class="">
   <table>
       <tr><th>Word</th> <th>Quantity</th></tr> 
       {% for word, count in top_10 %}
       <tr> <td>{{word}} </td><td>{{count}} </td></tr>
       {% endfor %}
   </table>
  </div>

这是我的

计数器

应用程序的：

from django.contrib import admin
from django.urls import path, include
from django.conf import settings
from django.conf.urls.static import static

urlpatterns = [
   path('admin/', admin.site.urls),
   # path('', include('mortems.urls')),
   path('', include('redactors.urls')),
   path('', include('posts.urls')),   
   path('', include('counters.urls')),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

from django.shortcuts import render
from collections import Counter
import re
from nltk.corpus import stopwords

def counters(request, text=""):
   """
   This function processes the top 10 most common words in a text file and then renders them.
   """
   text = open("counters/Alice.txt", "r").read().lower()
   stoplist = stopwords.words('english')
   stoplist.extend(["said","gutenberg", "could", "would",])
   clean = []
   for word in re.split(r"\W+",text):
       if word not in stoplist:
           clean.append(word)
   top_10 = Counter(clean).most_common(10)
   return render(request, 'alls/landings.html', {'top_10': top_10})

from django.urls import path, include
from . import views


urlpatterns = [
   path('counters', views.counters, name='counters'),
]

  <h1>Counting the words!</h1>
  This should only show inside landing.html
  <div class="">
   <table>
       <tr><th>Word</th> <th>Quantity</th></tr> 
       {% for word, count in top_10 %}
       <tr> <td>{{word}} </td><td>{{count}} </td></tr>
       {% endfor %}
   </table>
  </div>

这是我的

计数器

应用程序的：

from django.contrib import admin
from django.urls import path, include
from django.conf import settings
from django.conf.urls.static import static

urlpatterns = [
   path('admin/', admin.site.urls),
   # path('', include('mortems.urls')),
   path('', include('redactors.urls')),
   path('', include('posts.urls')),   
   path('', include('counters.urls')),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

from django.shortcuts import render
from collections import Counter
import re
from nltk.corpus import stopwords

def counters(request, text=""):
   """
   This function processes the top 10 most common words in a text file and then renders them.
   """
   text = open("counters/Alice.txt", "r").read().lower()
   stoplist = stopwords.words('english')
   stoplist.extend(["said","gutenberg", "could", "would",])
   clean = []
   for word in re.split(r"\W+",text):
       if word not in stoplist:
           clean.append(word)
   top_10 = Counter(clean).most_common(10)
   return render(request, 'alls/landings.html', {'top_10': top_10})

from django.urls import path, include
from . import views


urlpatterns = [
   path('counters', views.counters, name='counters'),
]

  <h1>Counting the words!</h1>
  This should only show inside landing.html
  <div class="">
   <table>
       <tr><th>Word</th> <th>Quantity</th></tr> 
       {% for word, count in top_10 %}
       <tr> <td>{{word}} </td><td>{{count}} </td></tr>
       {% endfor %}
   </table>
  </div>

注意path函数中的第一个参数。这就是问题所在，因为现在web访问者在导航到

127.0.0.1:8000/计数器时会看到该表，但我试图让Django在用户导航到127.0.0.1:8000/
或127.0.0.1:8000/主页时提供该表。因此，当我将第一个'counters'
参数更改为'home'
或'
（保留为空）时，表根本不会呈现
最后，我要做的是让Django提供计数器
功能，并在网站访问者导航到http://127.0.0.1:8000/home
或http://127.0.0.1:8000/
。这就是我正在努力实现的目标。但是现在要查看该表，用户需要访问http://127.0.0.1:8000/counters
没有博客文章内容的地方
在我的Django服务器日志中没有回溯，所以我没有太多的Google搜索词可供使用
顺便说一句，这是我的缩略（简化）HTML表，它显示在我的中：
from django.contrib import admin
from django.urls import path, include
from django.conf import settings
from django.conf.urls.static import static

urlpatterns = [
   path('admin/', admin.site.urls),
   # path('', include('mortems.urls')),
   path('', include('redactors.urls')),
   path('', include('posts.urls')),   
   path('', include('counters.urls')),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

from django.shortcuts import render
from collections import Counter
import re
from nltk.corpus import stopwords

def counters(request, text=""):
   """
   This function processes the top 10 most common words in a text file and then renders them.
   """
   text = open("counters/Alice.txt", "r").read().lower()
   stoplist = stopwords.words('english')
   stoplist.extend(["said","gutenberg", "could", "would",])
   clean = []
   for word in re.split(r"\W+",text):
       if word not in stoplist:
           clean.append(word)
   top_10 = Counter(clean).most_common(10)
   return render(request, 'alls/landings.html', {'top_10': top_10})

from django.urls import path, include
from . import views


urlpatterns = [
   path('counters', views.counters, name='counters'),
]

  <h1>Counting the words!</h1>
  This should only show inside landing.html
  <div class="">
   <table>
       <tr><th>Word</th> <th>Quantity</th></tr> 
       {% for word, count in top_10 %}
       <tr> <td>{{word}} </td><td>{{count}} </td></tr>
       {% endfor %}
   </table>
  </div>

数单词！
这应该只显示在landing.html内部
字数
{单词的百分比，计入前10%}
{{word}}{{count}
{%endfor%}

以下是我在GitHub上的完整源代码。
我认为问题在于你设计顶级URL的方式。如果希望用户在访问主页后立即重定向到计数器视图，则需要将父URL.py更改为以下内容：
from django.contrib import admin
from django.urls import path, include
from django.conf import settings
from django.conf.urls.static import static


urlpatterns = [
   path('admin/', admin.site.urls),
   # path('', include('mortems.urls')),
   path('redactors', include('redactors.urls')),
   path('posts', include('posts.urls')),   
   path('', include('counters.urls')),
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)


您的版本中存在的问题是，一旦用户访问主页，他就会被定向到redactors.url，因为这是主页url的第一个匹配项
接下来，您需要将counters.url更改为：
from django.urls import path, include
from . import views


urlpatterns = [
   path('', views.counters, name='counters'),
]


这将在用户访问您的网页时直接将其重定向到计数器视图
或者，如果您希望在http://127.0.0.1:8000/home
，然后您可以将父URL.py更改为：
path('home/', include('counters.urls')),

尤里卡！它起作用了
自上次以来，counters/views.py
已重新排列。该视图中包含的函数已移动到posts/views.py
中。即使是top\u word\u counts
函数也已被移动到位于posts/utils.py
的新文件中。以下是imgur上的屏幕截图，其中显示了Alice.txt（左下角）中最常出现的单词：
您可能会注意到新功能的痕迹。例如，我的应用程序不仅计算Alice.txt的内容，现在还计算博客帖子中最常见的单词（现在是lorem ipsum占位符内容）
考虑到所有这些变化，下面是我的工作posts/views.py
：
import operator
from django.shortcuts import redirect, render, get_object_or_404
from posts.models import Posts
from .utils import top_word_counts

def posts(request):
    posts = Posts.objects.all().order_by('-pub_date')
    context = {'posts':posts}

    post_string = ''
    for post in posts:
        post_string += post.body

    post_words = top_word_counts(post_string.lower())
    alice_words = top_word_counts(
        open("counters/Alice.txt", "r").read().lower())

    context.update({
        'post_words': post_words,
        'alice_words': alice_words
    })

    return render(request, 'alls/landings.html', context)

import re
from collections import Counter
from nltk.corpus import stopwords


def top_word_counts(text):
    # text = open("counters/Alice.txt", "r").read().lower()

    stoplist = stopwords.words('english')
    stoplist.extend(["said", "gutenberg", "could", "would", ])
    clean = []
    for word in re.split(r"\W+", text):
        if word not in stoplist:
            clean.append(word)
    top_10 = Counter(clean).most_common(10)

    return top_10

这是我新的帖子/utils.py
：
import operator
from django.shortcuts import redirect, render, get_object_or_404
from posts.models import Posts
from .utils import top_word_counts

def posts(request):
    posts = Posts.objects.all().order_by('-pub_date')
    context = {'posts':posts}

    post_string = ''
    for post in posts:
        post_string += post.body

    post_words = top_word_counts(post_string.lower())
    alice_words = top_word_counts(
        open("counters/Alice.txt", "r").read().lower())

    context.update({
        'post_words': post_words,
        'alice_words': alice_words
    })

    return render(request, 'alls/landings.html', context)

import re
from collections import Counter
from nltk.corpus import stopwords


def top_word_counts(text):
    # text = open("counters/Alice.txt", "r").read().lower()

    stoplist = stopwords.words('english')
    stoplist.extend(["said", "gutenberg", "could", "would", ])
    clean = []
    for word in re.split(r"\W+", text):
        if word not in stoplist:
            clean.append(word)
    top_10 = Counter(clean).most_common(10)

    return top_10

谢谢@Hatim，但我正试图在Django提供landings.HTML
模板时显示计数器
HTML表，而不是单独在一个模板中提供。这三个应用程序（redactors
，posts
，counters
）都应该显示在网站的登录页http://127.0.0.1:8000/
而不是在单独的页面上，例如http://127.0.0.1:8000/counters
或http://127.0.0.1:8000/redactors
这就是路径参数的作用。接下来我将更新我的问题以进一步澄清这一点。好的，我从您的评论中了解到，计数器表是登录页的一部分，而不是整个登录页，对吗？加载页面后，可以使用AJAX调用呈现计数器表。如果我正确理解了你的问题，请告诉我。