我为WordPress编写了很多插件,现在我想让它们适应MU.为了"升级"我的插件以支持多站点安装,我必须遵循/避免/适应
哪些考虑/最佳实践/工作流/功能/陷阱?
例如,但不限于:
$wpdb在Codex中,有时在单一功能描述中有关于Multisite的评论,但我找不到任何一站式页面来解决这个问题.
更确切地说,我需要知道(如果可能的话)我是否可以找到给定字符串是否具有双字节字符.基本上,我需要打开一个弹出窗口来显示一个给定的文本,它可以包含双字节字符,如中文或日文.在这种情况下,我们需要调整窗口大小,而不是英文或ASCII.有人有线索吗?
我知道这是一个相当简单的问题,但我不太擅长数学.
我知道如何生成0到1之间的随机浮点数:
float random = ((float) rand()) / (float) RAND_MAX;
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例:
RandomFloat( 0.78, 4.5 ); //Could return 2.4124, 0.99, 4.1, etc.
Run Code Online (Sandbox Code Playgroud) 我有一个响应的网页.它利用媒体查询.
但是在iframe中加载的同一页面无效.
例如,考虑到我的网页,当屏幕宽度小于640px时,我将背景颜色设置为红色.
@media only screen and (max-device-width : 640px) {
.header-text {
background-color: red;
}
}
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因此,当我在新选项卡中加载该窗口并使浏览器宽度小于640px时,背景颜色变为红色.
但是在320*480维度的iframe中加载时,同一窗口没有背景颜色为红色.
如何使媒体查询在iframe中工作?
我正在尝试实现一个粘贴处理程序来从用户的剪贴板中获取图像.我希望这只能在Google Chrome上运行,我并不担心其他浏览器.
这是我在互联网上找到的一种方法的一部分,我正在努力调整它.
// Get the items from the clipboard
var items = e.clipboardData.items;
if (items) {
// Loop through all items, looking for any kind of image
for (var i = 0; i < items.length; i++) {
if (items[i].type.indexOf("image") !== -1) {
// We need to represent the image as a file,
var blob = items[i].getAsFile();
// and use a URL or webkitURL (whichever is available to the browser)
// to create a temporary URL to the object
var …Run Code Online (Sandbox Code Playgroud) 使用时slideToggle,如何更改文本关闭/显示?我做了一个简单的,但无法将文本更改回来.
这是我做的:
$(document).ready(function(){
$('.open').click(function(){
$('.showpanel').slideToggle('slow');
$(this).text('close');
});
$('.open2').click(function(){
$('.showpanel2').slideToggle('slow');
$(this).text('close');
});
});Run Code Online (Sandbox Code Playgroud)
body{
font-size:20px;
}
#box{
border:2px solid #000;
width:500px;
min-height:300px;
}
.open,.open2 {
width:450px;
height:50px;
background:blue;
margin:5px auto 0 auto;
color:#fff;
}
.showpanel,.showpanel2{
width:450px;
height:300px;
margin:0 auto 10px auto;
background:red;
display:none;
}Run Code Online (Sandbox Code Playgroud)
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="box">
<div class="open">Show</div>
<div class="showpanel">This is content</div>
<div class="open2">Show</div>
<div class="showpanel2">This is content</div>
</div>Run Code Online (Sandbox Code Playgroud)
我想在我的Django管理员列表显示中编辑一个布尔字段.相反,我有不可编辑的图标:

我的代码看起来像这样:
# Model
class Task(models.Model):
...
is_finished = models.BooleanField()
# Admin
list_display = (..., 'is_finished')
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我没有包含is_finished在readonly_fields元组中admin.py,所以我很惊讶默认情况下它是不可编辑的.我究竟做错了什么?
我已经下载了版本1.1.0的elasticsearch,它运行良好.我想安装marvel插件,所以我从elasticsearch主目录运行以下命令(完全像官方教程http://www.elasticsearch.org/guide/en/marvel/current/#_simple_install中所述) :
bin\plugin -i elasticsearch/marvel/latest
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但是我收到以下错误:
-> Installing elasticsearch/marvel/latest...
Trying http://download.elasticsearch.org/elasticsearch/marvel/marvel-latest.zip.
..
Trying http://search.maven.org/remotecontent?filepath=elasticsearch/marvel/lates
t/marvel-latest.zip...
Trying https://oss.sonatype.org/service/local/repositories/releases/content/elas
ticsearch/marvel/latest/marvel-latest.zip...
Trying https://github.com/elasticsearch/marvel/archive/vlatest.zip...
Trying https://github.com/elasticsearch/marvel/archive/master.zip...
Failed to install elasticsearch/marvel/latest, reason: failed to download out of
all possible locations..., use -verbose to get detailed information
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这就是我使用-verbose时得到的结果:
-> Installing elasticsearch/marvel/latest...
Trying http://download.elasticsearch.org/elasticsearch/marvel/marvel-latest.zip.
..
Failed: UnknownHostException[download.elasticsearch.org]
Trying http://search.maven.org/remotecontent?filepath=elasticsearch/marvel/lates
t/marvel-latest.zip...
Failed: UnknownHostException[search.maven.org]
Trying https://oss.sonatype.org/service/local/repositories/releases/content/elas
ticsearch/marvel/latest/marvel-latest.zip...
Failed: UnknownHostException[oss.sonatype.org]
Trying https://github.com/elasticsearch/marvel/archive/vlatest.zip...
Failed: UnknownHostException[github.com]
Trying https://github.com/elasticsearch/marvel/archive/master.zip...
Failed: UnknownHostException[github.com]
Failed to install elasticsearch/marvel/latest, reason: failed to download out of …Run Code Online (Sandbox Code Playgroud) 我有这个代码.
JavaScript的
var myApp = angular.module('myApp',[]);
function MyCtrl($scope) {
$scope.nameFilter = '';
$scope.contacts = [
{name: 'GHI'},
{name: 'DEF'},
{name: 'ABC'},
{name: 'JKL'}
];
}
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视图
<div ng-controller="MyCtrl">
<div><input type="text" ng-model="nameFilter" placeholder="Search..." /></div>
<p ng-repeat="contact in contacts track by $index | filter: nameFilter | orderBy: name">{{ contact.name }}</p>
</div>
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我不知道为什么订单不起作用以及过滤器无法正常工作的原因.
在另一个问题上,我已经读过一些无法过滤或订购对象的内容.但我有一系列上面的对象.它应该工作!?
有什么问题?
如何在WordPress中更改主题名称?
我是否也可以public/wp-content/themes/theme1244在未来出现问题的情况下更改文件夹名称theme1244 ?