Django没有给出分页结果

我在制作一个Django项目，一个商业目录。这里我已经在html页面中使用了分页。但它不工作。其没有显示任何错误也请检查我的代码，并帮助我解决我的问题Django没有给出分页结果

我的models.py是::

from django.db import models 


class Directory(models.Model): 

    Bussiness_name = models.CharField(max_length=300) 
    Description = models.CharField(max_length=900) 
    Number = models.CharField(max_length=100) 
    Web_url = models.CharField(max_length=800) 
    Catogory = models.CharField(max_length=200) 


    def __unicode__(self): 
     return self.Bussiness_name 

class Adress(models.Model): 
    directory = models.ForeignKey(Directory) 
    adress_name = models.CharField(max_length=300) 
    def __unicode__(self): 
     return self.adress_name 

class Photos(models.Model): 
    directory = models.ForeignKey(Directory) 
    Photo_path = models.CharField(max_length=100) 
    Photo_name = models.CharField(max_length=100) 
    def __unicode__(self): 
     return self.Photo_name

我view.py是::

# The views.py file 
from django.http import HttpResponse 
from crawlerapp.models import Directory 
from crawlerapp.models import Adress 
from crawlerapp.models import Photos 
from django.template import Context, loader 
from django.shortcuts import render 
from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger 

# it returns the resonse to the 1st page or Home page. 
def index(request): 
    Directory_list = Directory.objects.all() 
    t=loader.get_template('crawlerapp/index.html') 
    c = Context({'Directory_list': Directory_list,}) 
    return HttpResponse(t.render(c)) 

# it returns the resonse to the Contact Us page 
def contactus(request): 
    Directory_list = Directory.objects.all() 
    t=loader.get_template('crawlerapp/contactus.html') 
    c = Context({'Directory_list': Directory_list,}) 
    return HttpResponse(t.render(c)) 

# when a catagory is searched, it takes the request and 
# varifies whether it's a category or a place for which we are searching for. 
def search(request): 
    if 'what' in request.GET and request.GET['what']: 
     what = request.GET['what'] 

     crawlerapp = Directory.objects.filter(Catogory__icontains=what) 
     return render(request, 'crawlerapp/search.html', 
         {'crawlerapp': crawlerapp, 'query': what}) 


    elif 'who' in request.GET and request.GET['who']: 
     who = request.GET['who'] 
     crawlerapp = Directory.objects.filter(Bussiness_name__icontains=who) 
     return render(request, 'crawlerapp/search.html', 
         {'crawlerapp': crawlerapp, 'query': who}) 
    # if the form field is left blank and searched, it will give the folowing message.  
    else: 
     message = 'You submitted an empty form.' 
    return HttpResponse(message) 

# I tried to include paging here and has set a limit of 10 
# That is per page will contain only 10 Business details and not more than 10. 
def listing(request): 
    directory_list = search 
    paginator = Paginator(directory_list, 10) # Show 10 business details per page 

    page = request.GET.get('page') 
    try: 
     directory = paginator.page(page) 
    except PageNotAnInteger: 
     # If page is not an integer, deliver first page. 
     directory = paginator.page(1) 
    except EmptyPage: 
     # If page is out of range (e.g. 9999), deliver last page of results. 
     contacts = paginator.page(paginator.num_pages) 

    return render_to_response('search.html', {"directory": directory})

我在HTML页面中使用的代码：

<html> 
<head> 
     <title>{% block head_title %}SearchPage{% endblock %}</title> 
</head> 
<body> 
    <h1>{% block title %}The Blue Day, A Search Directory by Abhimanyu Choithramani{% endblock %}</h1> 
    {% block content %} 
    <div style="text-transform: uppercase;" id="network-bar"> 
    <dl> 
        <dd>*   <a href="http://127.0.0.1:8000/crawlerapp/">Homepage</a>  

       *   <a href="http://127.0.0.1:8000/crawlerapp/contactus">Contact Us</a></dd>     
    </dl> 
    <dl> 
     <dd class="last" style="float: right;"><a href="http://127.0.0.1:8000/crawlerapp/" title="Blue Day Business Directory">Blue Day Business Directory</a></dd> 
    </dl> 
    <div class="network-bar-search"></div> 
    </div> 

    <div style="border-top: 1px dashed #6b88a5; margin: 10px;"></div> 

    <div style="padding: 0 10px 10px; position: relative;"> 
     Search our <a href="http://127.0.0.1:8000/crawlerapp/">Business Directory</a> by entering a business type or name and just click on a Search. 

    </div> 
     <div style="position: relative;" id="headerSearchindex"> 
    <form action='' method="GET"> 
     <table style="width: 60%" border="0" cellpadding="1" cellspacing="0"> 

      <tr> 
        <td class="hsTableTitleCell leftSpaced"> By category:</td> 
       <td class="hsTableTitleCell leftSpaced">Or by company name:</td> 
        <td style="width: 300px;">&nbsp;</td> 
      </tr> 
      <tr> 
       <td class="hsTableBusinessCell leftSpaced"><input type="text" title="Business Category" placeholder="e.g Computer, Restaurants" name="what" autocomplete="off" value=""/></td> 
       <td class="hsTableCompanyCell leftSpaced"><input type="text" title="Company Name" placeholder="e.g Smith and Sons" name="who" value=""/></td>     

<td class="hsTableSearchButtCell leftSpaced"><input name="search_action" type="submit" value="Search"/></td> 
      </tr> 

     </table> 
    </form> 

    </div> 


<p>You searched for: <strong>{{ query }}</strong></p> 

{% if crawlerapp %} 

<p>Found {{ crawlerapp|length }} in this Category{{ crawlerapp|pluralize }}.</p> 
<ul> 

{% for Directory in crawlerapp %} 
<li>Business Name: {{ Directory.Bussiness_name }}</li> 
    Description: {{ Directory.Description }}</br> 
    Contact Number: {{ Directory.Number }}</br> 
    Web_URL:  {{ Directory.Web_url }}</br> 
    Adress:  {% for Adress in Directory.adress_set.all %}{{forloop.counter}}:- {{ Adress.adress_name }}</br>{% endfor %} 
    Photo:   {% for Photos in Directory.photos_set.all %}{{ Photos.Photo_name }}</br>{% endfor %}</br></br> 

{% endfor %} 

</ul> 

<div class="pagination"> 
<span class="step-links"> 
    {% if Directory.has_previous %} 
     <a href="?page={{ Directory.previous_page_number }}">previous</a> 
    {% endif %} 

    <span class="current"> 
     Page {{ Directory.number }} of {{ Directory.paginator.num_pages }}. 
    </span> 

    {% if Directory.has_next %} 
     <a href="?page={{ Directory.next_page_number }}">next</a> 
    {% endif %} 
    </span> 
</div> 

{% else %} 
<p>No Business matched your search criteria.</p> 
{% endif %} 

    </body>      

<br><br><br><br><br><br><br><br>    

     <div id="footer"> &copy; Abhimanyu Choithramani's <a href="http://127.0.0.1:8000/crawlerapp/" >The Blue Day</a> is a Business Search Directory. 
     </div> 
    </div> 
</div> 


{% endblock %}  


</html>

和设置s.py文件是：

# Django settings for crawler project. 
import os.path 
PROJECT_ROOT = os.path.abspath(os.path.dirname(__file__)) 
DEBUG = True 
TEMPLATE_DEBUG = DEBUG 

ADMINS = (
    # ('Your Name', '[email protected]'), 
) 

MANAGERS = ADMINS 

DATABASES = { 
    'default': { 
     'ENGINE': 'django.db.backends.mysql', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'. 
     'NAME': 'project2',      # Or path to database file if using sqlite3. 
     # The following settings are not used with sqlite3: 
     'USER': 'root', 
     'PASSWORD': '', 
     'HOST': '127.0.0.1',      # Empty for localhost through domain sockets or '127.0.0.1' for localhost through TCP. 
     'PORT': '3306',      # Set to empty string for default. 
    } 
} 

ALLOWED_HOSTS = [] 

TIME_ZONE = 'America/Chicago' 

LANGUAGE_CODE = 'en-us' 

SITE_ID = 1 

USE_I18N = True 

USE_L10N = True 

USE_TZ = True 

MEDIA_ROOT = '' 

MEDIA_URL = '' 

STATIC_ROOT = '' 

STATIC_URL = '/static/' 

STATICFILES_DIRS = (

) 

STATICFILES_FINDERS = (
    'django.contrib.staticfiles.finders.FileSystemFinder', 
    'django.contrib.staticfiles.finders.AppDirectoriesFinder', 

) 

SECRET_KEY = '' 

TEMPLATE_LOADERS = (
    'django.template.loaders.filesystem.Loader', 
    'django.template.loaders.app_directories.Loader', 
) 

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware', 
    'django.contrib.sessions.middleware.SessionMiddleware', 
    'django.middleware.csrf.CsrfViewMiddleware', 
    'django.contrib.auth.middleware.AuthenticationMiddleware', 
    'django.contrib.messages.middleware.MessageMiddleware', 
) 

ROOT_URLCONF = 'crawler.urls' 

WSGI_APPLICATION = 'crawler.wsgi.application' 

TEMPLATE_DIRS = (
    os.path.join(PROJECT_ROOT, "templates/crawlertemplates") 
    # "C:/Python27/django/crawler/templates", 

) 

INSTALLED_APPS = (
    'django.contrib.auth', 
    'django.contrib.contenttypes', 
    'django.contrib.sessions', 
    'django.contrib.sites', 
    'django.contrib.messages', 
    'django.contrib.staticfiles', 
    'crawlerapp', 
    'django.contrib.admin', 
) 

LOGGING = { 
    'version': 1, 
    'disable_existing_loggers': False, 
    'filters': { 
     'require_debug_false': { 
      '()': 'django.utils.log.RequireDebugFalse' 
     } 
    }, 
    'handlers': { 
     'mail_admins': { 
      'level': 'ERROR', 
      'filters': ['require_debug_false'], 
      'class': 'django.utils.log.AdminEmailHandler' 
     } 
    }, 
    'loggers': { 
     'django.request': { 
      'handlers': ['mail_admins'], 
      'level': 'ERROR', 
      'propagate': True, 
     }, 
    } 
}

请帮忙解决分页问题。请...... ,,

来源

2013-07-15 Abhimanyu

有什么理由不使用基于类的视图吗？有一个分页的属性，你可以修改，它会自动给你分页！

from django.views.generic import ListView 

class BusinessView(ListView): 
    model = YourBusinessModel 
    paginate_by = 20

这里的一些文档：

https://docs.djangoproject.com/en/1.3/ref/class-based-views/#django.views.generic.list.MultipleObjectMixin.paginate_by

有一个好！

来源

2013-07-16 00:36:18

我敢肯定，90％它是由下列2行中的listing观点引起：

directory_list = search 
paginator = Paginator(directory_list, 10) # Show 10 business details per page

search不是一个定义的变量。也许你可能试图拨打search()，但即使这样也会返回一个HttpResponse，这是你不能分类的东西。

您传递给Paginator()的第一个值应该是多个对象/项目的集合。例如，Paginator(Photos.objects.all(), 10)将每页显示10张照片。

在旁注中，您与您的视图中的符号有点不一致。例如，

def contactus(request): 
    Directory_list = Directory.objects.all() 
    t=loader.get_template('crawlerapp/contactus.html') 
    c = Context({'Directory_list': Directory_list,}) 
    return HttpResponse(t.render(c))

可以改写为

def contactus(request): 
    Directory_list = Directory.objects.all() 
    return render(request, 'crawlerapp/contactus.html', {'Directory_list': Directory_list,})

这类似于你在search观点做了什么。

在另一面请注意，出于明显的安全原因，您不应该公开显示您的SECRET_KEY值。只是想帮助！

来源

2013-07-16 02:24:00 chipperdrew

谢谢你... 我希望它的工作.. 将尝试和评论。 – Abhimanyu

Django没有给出分页结果

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