6

我一直在尝试使用 dajaxice 创建一个最简单的应用程序。我在这里阅读了有关此问题的所有主题，不仅在这里，多次重写所有代码，但仍然看不到问题所在。最有趣的是，这些示例（几乎全部）都有效： https ://github.com/jorgebastida/django-dajaxice/downloads dajaxice-examples.tar.gz

但在我的项目中，我有这个：

Uncaught TypeError: Cannot call method 'sayhello' of undefined

我的工具：

  • 视窗 7 64
  • python-2.7.3
  • Django-1.4.2
  • django-dajaxice-0.2

项目结构：

BlocalProject/
    templates/
        template_1.html
    manage.py
    BlocalProject/
        ajapp/
            __init__.py
            ajview.py
        __init__.py
        settings.py
        urls.py
        views.py
        wsgi.py

网址.py：

from django.conf.urls.defaults import *
import settings
from dajaxice.core import dajaxice_autodiscover
dajaxice_autodiscover()


urlpatterns = patterns('',
    (r'^%s/' % (settings.DAJAXICE_MEDIA_PREFIX), include('dajaxice.urls')),
    (r'^$', 'BlocalProject.views.start_page'),
)

视图.py：

from django.shortcuts import render

def start_page(request):
    return render(request,'template_1.html')

ajapp.py：

from django.utils import simplejson
from dajaxice.core import dajaxice_functions


def sayhello(request):
    return simplejson.dumps({'message': 'Trololo!'})

dajaxice_functions.register(sayhello)

模板_1.html：

{% load dajaxice_templatetags %}
<html>
  {% dajaxice_js_import %}
  <script>
    function alertMessage(data){
      alert(data.message);
      return false;
    }
  </script>

  <body>
    Some text
    <input type="button" value="Get!" onclick="Dajaxice.ajapp.sayhello(alertMessage);" />
  </body>
</html>

设置.py：

# Django settings for BlocalProject project.

DEBUG = True
TEMPLATE_DEBUG = DEBUG

ADMINS = (
    # ('Your Name', 'your_email@example.com'),
)

MANAGERS = ADMINS

DATABASE_ENGINE = ''           # 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
DATABASE_NAME = ''             # Or path to database file if using sqlite3.
DATABASE_USER = ''             # Not used with sqlite3.
DATABASE_PASSWORD = ''         # Not used with sqlite3.
DATABASE_HOST = ''             # Set to empty string for localhost. Not used with sqlite3.
DATABASE_PORT = ''             # Set to empty string for default. Not used with sqlite3.

# Local time zone for this installation. Choices can be found here:
# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
# although not all choices may be available on all operating systems.
# In a Windows environment this must be set to your system time zone.

TIME_ZONE = 'America/Chicago'

# Language code for this installation. All choices can be found here:
# http://www.i18nguy.com/unicode/language-identifiers.html
LANGUAGE_CODE = 'en-us'

SITE_ID = 1

# If you set this to False, Django will make some optimizations so as not
# to load the internationalization machinery.
USE_I18N = True

# Absolute filesystem path to the directory that will hold user-uploaded files.
# Example: "/home/media/media.lawrence.com/media/"
MEDIA_ROOT = ''

# URL that handles the media served from MEDIA_ROOT. Make sure to use a
# trailing slash.
# Examples: "http://media.lawrence.com/media/", "http://example.com/media/"
MEDIA_URL = ''

# URL prefix for admin media -- CSS, JavaScript and images. Make sure to use a
# trailing slash.
# Examples: "http://foo.com/media/", "/media/".
ADMIN_MEDIA_PREFIX = '/media/'

# URL prefix for static files.
# Example: "http://media.lawrence.com/static/"
STATIC_URL = '/'


# Make this unique, and don't share it with anybody.
SECRET_KEY = ')er9!%4v0=nmxd#2=j1*tlktmidq8aam2y)-%fjf6%^xp*5r)c'

# List of callables that know how to import templates from various sources.
TEMPLATE_LOADERS = (
    'django.template.loaders.filesystem.Loader',
    'django.template.loaders.app_directories.Loader',
    #'django.template.loaders.eggs.load_template_source',
)

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

ROOT_URLCONF = 'BlocalProject.urls'

# Python dotted path to the WSGI application used by Django's runserver.
#WSGI_APPLICATION = 'BlocalProject.wsgi.application'

TEMPLATE_DIRS = (
    'D:/_/Site_test/Djpr/BlocalProject/templates',
    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".
    # Always use forward slashes, even on Windows.
    # Don't forget to use absolute paths, not relative paths.
)

TEMPLATE_CONTEXT_PROCESSORS = ("django.contrib.auth.context_processors.auth",
                               "django.core.context_processors.debug",
                               "django.core.context_processors.i18n",
                               "django.core.context_processors.media",
                               "django.core.context_processors.static",
                               "django.core.context_processors.request",
                               "django.contrib.messages.context_processors.messages",)

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'dajaxice',
    'BlocalProject.ajapp',  
)

DAJAXICE_MEDIA_PREFIX = "dajaxice"
DAJAXICE_DEBUG = True
DAJAXICE_JS_DOCSTRINGS = True
#DAJAXICE_NOTIFY_EXCEPTIONS = True

import logging
logging.basicConfig(level=logging.DEBUG)
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1 回答 1

1

这可能为时已晚，但...

恕我直言，dajaxice_autodiscover()实际上并没有得到你的方法。我记得另一个 ajax lib 也有类似的问题，我通过在models.py(or views.py) 中添加一个导入解决了这个问题，它在应用程序启动时被导入。您提到的示例在 simple/views.py 中有一个导入：

# Create your views here.
from django.shortcuts import render

# THIS ONE!
from dajaxice.core import dajaxice_functions
# ---------


def index(request):

    return render(request, 'simple/index.html')

看起来它正在初始化东西。我的方法是：

  • 把几个打印语句放在你的里面ajapp.py，看看它们是否被打印出来。
  • 创建空models.py并views.py在您的BlocalProject.ajapp（django 是否仍用于models.py将模块验证为 django 应用程序？）

如果您的打印语句没有被触发，那么您需要找出原因。正如我所提到的，它可能就像在模型中导入 ajax 模块一样简单 :)

于 2013-02-12T10:09:17.007 回答