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Django沒有給出分頁結果

2013-07-15 51 views
1

我在製作一個Django項目，一個商業目錄。這裏我已經在html頁面中使用了分頁。但它不工作。 其沒有顯示任何錯誤也 請檢查我的代碼，並幫助我解決我的問題Django沒有給出分頁結果

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頁面中使用的代碼：

<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>

和設置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, 
     }, 
    } 
}

請幫忙解決分頁問題。 請...... ,,

來源

2013-07-15 Abhimanyu

回答

1

我敢肯定，90％它是由下列2行中的listing觀點引起：

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

search不是一個定義的變量。也許你可能試圖撥打search()，但即使這樣也會返回一個HttpResponse，這是你不能分類的東西。

您傳遞給Paginator()的第一個值應該是多個對象/項目的集合。例如，Paginator(Photos.objects.all(), 10)將每頁顯示10張照片。

在旁註中，您與您的視圖中的符號有點不一致。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))

可以改寫爲

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

這類似於你在search觀點做了什麼。

在另一面請注意，出於明顯的安全原因，您不應該公開顯示您的SECRET_KEY值。只是想幫助！

來源

2013-07-16 02:24:00 chipperdrew

+0

謝謝你... 我希望它的工作.. 將嘗試和評論。 – Abhimanyu

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