小编jus*_*tin的帖子

我是django的新手.我坚持在模板中比较字符串的问题.

我使用ifnotequal标签来比较字符串.但它没有用.

我试着输出变量:

{{ request.user.username }} 
{{ article.creator }}

在这里我比较:

{% ifnotequal request.user.username article.creator %}
    {# output something #}
{% endifnotequal %}

但是当我做硬编码时:它有效.

{% ifnotequal "justin" "mckoy" %}
    {# output something #}
{% endifnotequal %}

问题是什么？它article.creator来自数据库,user.username来自请求.

任何人都可以帮我解决这个问题吗？

我想突出显示您点击的当前菜单.我正在使用CSS,但它现在正在运行.

这是我的css代码:

#sub-header ul li:hover{ background-color: #000;}
#sub-header ul li:hover a{ color: #fff; }
#sub-header ul li.active{ background-color: #000; }
#sub-header ul li.active a{ color: #fff; }

这是我的HTML:

<div id="sub-header">
    <ul>
        <li> <a href="index.php">Home</a> </li>
        <li> <a href="contact.php">Contact Us</a> </li>
        <li> <a href="about.php">About Us</a> </li>
    </ul>
</div>

当我悬停并且菜单处于活动状态时,这就是我喜欢的

悬停是可以的,问题是当我点击菜单后黑色地面不显示

@Jonathan,我已经解决了它,它比你给出的更简单.

这是我的答案:

$(function(){
    // this will get the full URL at the address bar
    var url = window.location.href; 

    // passes on every "a" tag 
    $("#sub-header a").each(function() {
            // checks if its …

我是django的新手,我在djangoproject.com上完成了4部分教程

我的问题是我想在我的民意调查应用程序上进行登录身份验证.我使用装饰器@login_required并且它正常工作但在我的views.py下我只有vote()方法.

我的views.py在"polls文件夹"下

from django.shortcuts import render_to_response, get_object_or_404
from django.http import HttpResponseRedirect, HttpResponse
from django.contrib.auth.decorators import login_required
from django.views.decorators.cache import never_cache
from django.core.urlresolvers import reverse
from django.template import RequestContext
from polls.models import Poll, Choice


@login_required
@never_cache
def vote(request, poll_id):
    p = get_object_or_404(Poll, pk=poll_id)
    try:
        selected_choice = p.choice_set.get(pk=request.POST['choice'])
    except (KeyError, Choice.DoesNotExist):
        return render_to_response('polls/detail.html', {
            'poll': p,
            'error_message': "You didn't select a choice.",
        }, context_instance=RequestContext(request))
    else:
        selected_choice.votes += 1
        selected_choice.save()
        return HttpResponseRedirect(reverse('poll_results', args=(p.id,)))
    return HttpResponse("You're voting on poll %s." % poll_id) 

我的urls.py在"polls文件夹"下 …

我是laraval 4的新手.

我有这个问题:

SELECT a.id, active, name, email, img_location, IFNULL(b.Total, 0) AS LeadTotal, IFNULL(c.Total, 0) AS InventoryTotal
FROM users AS a
LEFT JOIN (
   SELECT user_id, count(*) as Total
   FROM lead_user
   GROUP BY user_id
) AS b ON a.id = b.user_id
LEFT JOIN (
   SELECT user_id, count(*) as Total
   FROM user_inventory
   GROUP BY user_id
) AS c ON a.id = c.user_id
WHERE a.is_deleted = 0

如何将其转换为laravel查询生成器？我对如何在这种类型的查询中使用laravel连接查询构建器感到困惑.

谢谢!

回答!!

请问lakvel论坛上所有petkostas的帮助.我们得到了答案.

$users = DB::table('users AS a')
->select(array('a.*', DB::raw('IFNULL(b.Total, 0) AS LeadTotal'), DB::raw('IFNULL(c.Total, …

我有3张桌子:

users
leads
users_leads

在users桌子上:

---------------
-- id | name --
-- 1  | doe  --
-- 2  | joe  --
---------------

在leads桌子上:

----------------
-- id | type  --
-- 1  | house --
-- 2  | condo --
-- 3  | house --
----------------

在users_leads桌子上:

----------------------------
-- id | user_id | lead_id --
-- 1  | 1       | 1       --
-- 1  | 1       | 2       --
-- 1  | 2       | 3 …

你能id使用jQuery 获取html标签的属性吗？

例如:

<ul id="todo" />

如何在id不使用的情况下获得jQuery("#todo")？

有办法吗？会attr()工作吗？

如何使用其索引反转或迭代列表？

这是一个例子

lst = [3,2,4,1,5]

输出将是:( [3,2,4,5,1]索引3,其中1是最后的位置)

另一个例子:

lst = [1,5,4,2,3] 

输出:( [1,5,4,3,2]索引3是2到底是放在哪里)

这就像使用切片反转列表一样.

我点击管理员登录页面上的登录按钮后,我们.我收到此错误:

ValueError at /admin/
too many values to unpack
Request Method: POST
Request URL:    http://localhost:8000/admin/
Django Version: 1.3.1
Exception Type: ValueError
Exception Value:    
too many values to unpack
Exception Location: /home/justin/Workspace/training/django/env/local/lib/python2.7/site-packages/django/contrib/auth/models.py in check_password, line 42
Python Executable:  /home/justin/Workspace/training/django/env/bin/python
Python Version: 2.7.2
Python Path:    
['/home/justin/Workspace/training/django/test_project',
 '/home/justin/Workspace/training/django/env/local/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg',
 '/home/justin/Workspace/training/django/env/local/lib/python2.7/site-packages/pip-1.1-py2.7.egg',
 '/home/justin/Workspace/training/django/env/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg',
 '/home/justin/Workspace/training/django/env/lib/python2.7/site-packages/pip-1.1-py2.7.egg',
 '/home/justin/Workspace/training/django/env/lib/python2.7',
 '/home/justin/Workspace/training/django/env/lib/python2.7/plat-linux2',
 '/home/justin/Workspace/training/django/env/lib/python2.7/lib-tk',
 '/home/justin/Workspace/training/django/env/lib/python2.7/lib-old',
 '/home/justin/Workspace/training/django/env/lib/python2.7/lib-dynload',
 '/usr/lib/python2.7',
 '/usr/lib/python2.7/plat-linux2',
 '/usr/lib/python2.7/lib-tk',
 '/home/justin/Workspace/training/django/env/local/lib/python2.7/site-packages',
 '/home/justin/Workspace/training/django/env/local/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg-info',
 '/home/justin/Workspace/training/django/env/lib/python2.7/site-packages',
 '/home/justin/Workspace/training/django/env/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg-info']
Server time:    Thu, 19 Apr 2012 01:36:33 -0500

谁能帮我这个？我不知道错误在哪里.

谢谢,贾斯汀

我需要在当前日期之前 12 个月生成一份报告。

今天是 2014 年 4 月 29 日。所以我的日期范围是 2013-04-29 到 2014-04-29。

这些是我的示例数据：

--------------------------------------
-- user_id | lead_id | date_entered --
--       1 |       1 | 2013-12-05   --
--       1 |       2 | 2014-03-15   --
--       1 |       3 | 2014-04-24   --
--------------------------------------

预期输出应该是：

--------------------------
-- month | year | total --
--   Apr | 2013 |     0 --
--   May | 2013 |     0 --
--   Jun | 2013 |     0 --
--   Jul | 2013 |     0 …