Django的自動完成功能與Django的AJAX選擇

Question

我需要在我的Django項目中實現自動完成的領域的幫助。 我正試圖從用戶在查詢中鍵入數據庫中獲取相關項目的列表。我正在使用django-ajax-selects package。

我的項目名稱是computer builder和builds和parts是應用程序。 我的文件結構如下所示：

parts/models.py:

from django.db import models 

# Create your models here. 

class moboListing(models.Model): 
    """This model makes a database for a list of motherboards and prices""" 
    id = models.AutoField(primary_key=True) 
    moboList = models.CharField(max_length=400) 
    moboPrice = models.DecimalField(max_digits=5, decimal_places=2) 

在數據庫中，moboListing填充了主板的名稱。

builds/models.py:

from django.db import models 
from django.contrib.auth.models import User 

# Create your models here. 

class BuildsTable(models.Model): 

    moboPart = models.CharField(max_length=400) 
    moboPrice = models.DecimalField(max_digits=5, decimal_places=2) 

builds/forms.py:

from django.forms.models import ModelForm 
from django import forms 
from ajax_select import make_ajax_field 
from parts.models import moboListing 
from builds.models import BuildsTable 

class BuildsForm(ModelForm): 

    class Meta: 
     model = moboListing 

    moboList = make_ajax_field(moboListing, 'moboList', 'moboList', help_text=None 

builds/lookups.py:

from ajax_select import LookupChannel 
from django.db.models import Q 
from django.utils.html import escape 
from parts.models import moboListing 

class moboLookup(LookupChannel): 

    model = moboListing 

    def get_query(self, q, request): 
     return moboListing.objects.filter(Q(moboList__icontains=q)).order_by('name') 
    def get_result(self, obj): 
     """ result is the simple text that is the completion of what the person typed """ 
     return obj.name 
    def format_match(self, obj): 
     """ (HTML) formatted item for display in the dropdown """ 
     return self.format_item_display(obj) 

    def format_item_display(self, obj): 
     """ (HTML) formatted item for displaying item in the selected deck area """ 
     return u"%s<div><i>%s</i></div>" % (escape(obj.moboList), escape(obj.moboPrice)) 

    def get_objects(self, ids): 
     return moboListing.objects.filter(pk__in=ids) 

builds/views.py：

from django.shortcuts import render, render_to_response 
from django import forms 
import datetime 
from django.contrib.auth.decorators import login_required 
from django.template import RequestContext 

from ajax_select.fields import AutoCompleteField 
from forms import BuildsForm 
from builds.models import BuildsTable 
from parts.models import moboListing 

# Create your views here. 

class SearchForm(forms.Form): 

    q = AutoCompleteField(
      'moboList', 
      required=True, 
      help_text="Autocomplete will suggest motherboards", 
      label="Motherboards", 
      attrs={'size': 400} 
      ) 

@login_required 
def new_build(request): 

    dd = {} 
    if 'q' in request.GET: 
     dd['entered'] = request.GET.get('q') 
    initial = {'q': "Enter Motherboard query"} 
    form = SearchForm(initial=initial) 
    dd['form'] = form 
    return render_to_response('new_build.html', dd, context_instance=RequestContext(request)) 

在settings.py：

# define the lookup channels in use on the site 
    AJAX_LOOKUP_CHANNELS = { 
     #simple: search Person.objects.filter(name__icontains=q) 
     #'person' : {'model': 'example.person', 'search_field': 'name'}, 
     # define a custom lookup channel 
     #'song' : ('example.lookups', 'SongLookup') 
     #'moboList' : {'model': 'parts.moboListing', 'search_field': 'moboList'}, 
     'moboList': ('builds.lookups', 'moboLookup') 

    } 

    AJAX_SELECT_BOOTSTRAP = True 

然而，在我的html頁面，當我在測試服務器上，輸入到搜索字段並不帶來了從數據庫中的任何結果： http://i.imgur.com/3o1PONH.jpg

另外，我的html源代碼顯示自動完成功能已關閉，並且源爲/admin/lookups/ajax_lookup/moboList，但是當我訪問該鏈接時，我得到一個404：

<tr><th><label for="id_q">Motherboards:</label></th><td><input type="text" name="q" id="id_q" value="Enter Motherboard query" autocomplete="off" data-ajax-select="autocomplete" data-plugin-options="{min_length: 1, initial: Enter Motherboard query, html: true, source: /admin/lookups/ajax_lookup/moboList}" maxlength="255" 

任何人都可以幫助我嗎？謝謝！

Answer 1

你還需要給Ajax查詢視圖添加到您的urls.py

from django.conf.urls.defaults import * 

from django.contrib import admin 
from ajax_select import urls as ajax_select_urls 

admin.autodiscover() 

urlpatterns = patterns('', 
    # include the lookup urls 
    (r'^autocomplete/', include(ajax_select_urls)), 
) 

至於你說：

/管理/查找/ ajax_lookup/moboList，但是當我訪問該鏈接，我得到一個404：

因此，應該立即指出您的問題。