blocks|key|81596|text|Laravel的helpers.php方法是将其添加到composer.json+(https://github.com/laravel/framework/blob/master/composer.json)中的“文件”中：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|81597|"autoload":+{
++++"classmap":+[
++++++++...
++++],
++++"files":+[
++++++++"app/libraries/helpers.php"
++++],
},|code-block|syntax|javascript|81598|我所做的是创建小类(每个类有几个方法，每个方法一行，所有东西都是从某些东西扩展而来的，这就是我的目标)，|81599|class+ExtendedCarbon+extends+Carbon\Carbon+{

++++public+function+formatDDMMAAAA($date)
++++{
++++++++///+format+and+return
++++}

}|81600|将它们保存到应用程序/库中，并添加到composer.json：|81601|"autoload":+{
++++"classmap":+[
++++++++...
++++++++"app/libraries",
++++++++...
++++],
},|81602|执行|81603|composer+dump|81604|然后在你需要的任何地方使用它们|81605|$formatted+=+(new+ExtendedCarbon)->formatDDMMAAAA($date);|81606|观看这段关于重构的视频：http://www.youtube.com/watch?v=DC-pQPq0acs|81607|顺便说一下，我可以肯定这只是一个例子，但是你可能不需要帮助器来格式化日期，因为Laravel中的所有日期都是Carbon+(https://github.com/briannesbitt/Carbon)的实例，而且它有很多格式化日期和时间的方法。|81608|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/laravel/framework/blob/master/composer.json|1|http://www.youtube.com/watch?v=DC-pQPq0acs|2|https://github.com/briannesbitt/Carbon^0|16|1Q|0|0|0|0|0|0|0|0|0|0|0|C|16|1|0|1Q|12|2|0^^$0|@$1|2|3|4|5|6|7|1E|8|@]|9|@$A|1F|B|1G|1|1H]]|C|$]]|$1|D|3|E|5|F|7|1I|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|1J|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|1K|8|@]|9|@]|C|$G|H]]|$1|M|3|N|5|6|7|1L|8|@]|9|@]|C|$]]|$1|O|3|P|5|F|7|1M|8|@]|9|@]|C|$G|H]]|$1|Q|3|R|5|6|7|1N|8|@]|9|@]|C|$]]|$1|S|3|T|5|F|7|1O|8|@]|9|@]|C|$G|H]]|$1|U|3|V|5|6|7|1P|8|@]|9|@]|C|$]]|$1|W|3|X|5|F|7|1Q|8|@]|9|@]|C|$G|H]]|$1|Y|3|Z|5|6|7|1R|8|@]|9|@$A|1S|B|1T|1|1U]]|C|$]]|$1|10|3|11|5|6|7|1V|8|@]|9|@$A|1W|B|1X|1|1Y]]|C|$]]|$1|12|3|-4|5|6|7|1Z|8|@]|9|@]|C|$]]]|13|$14|$5|15|16|17|C|$18|19]]|1A|$5|15|16|17|C|$18|1B]]|1C|$5|15|16|17|C|$18|1D]]]]

Laravel's helpers.php method is to add it to your "files" in composer.json (<a href="https://github.com/laravel/framework/blob/master/composer.json" rel="noreferrer">https://github.com/laravel/framework/blob/master/composer.json</a>):

<pre><code>"autoload": {
 "classmap": [
 ...
 ],
 "files": [
 "app/libraries/helpers.php"
 ],
},
</code></pre>

What I do is to create small classes (a few methods per class, one line per method, everything extended from something and DRY, that's my goal), 



<pre><code>class ExtendedCarbon extends Carbon\Carbon {

 public function formatDDMMAAAA($date)
 {
 /// format and return
 }

}
</code></pre>

save them to them in app/libraries and add to composer.json:

<pre><code>"autoload": {
 "classmap": [
 ...
 "app/libraries",
 ...
 ],
},
</code></pre>

Execute 

<pre><code>composer dump
</code></pre>

And then just use them wherever you need

<pre><code>$formatted = (new ExtendedCarbon)-&gt;formatDDMMAAAA($date);
</code></pre>

Watch this video about refactoring: <a href="http://www.youtube.com/watch?v=DC-pQPq0acs" rel="noreferrer">http://www.youtube.com/watch?v=DC-pQPq0acs</a>

By the way, I'm kind of sure it was just an example, but you might not need a helper to format dates, since all dates in Laravel are instances of Carbon (<a href="https://github.com/briannesbitt/Carbon" rel="noreferrer">https://github.com/briannesbitt/Carbon</a>) and it has loads of methods to format date and time.

blocks|key|298882|text|我的方法是在Laravel4项目的根目录下的/app目录中创建一个新文件夹。然后将此文件夹添加到/app/start/global.php文件的第一个数组中，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|298883|<?php

ClassLoader::addDirectories(array(

app_path().'/commands',
app_path().'/controllers',
app_path().'/models',
app_path().'/database/seeds',
app_path().'/classes',+//+This+line+is+the+one+I've+added.

));|code-block|syntax|javascript|298884|只要新/app/classes文件夹中的文件夹结构遵循您的命名空间约定即可。Laravel+4将自动加载此文件夹中的所有类/文件。这样就不需要深入研究任何composer文件或运行composer命令。|298885|不确定这是否是最佳实践，但它肯定有效。|298886|如果您创建了一个名为/app/classes/Helpers/Helper.php的简单文件，如下所示：|298887|<?php+namespace+Helpers;

class+Helper+{

++++public+static+function+helloWorld()
++++{
++++++++return+'Hello+World';
++++}
}|298888|您所需要做的就是调用Helpers\Helper::helloWorld();|298889|您还可以在/app/config/app.php文件中为这个助手类设置别名。只需将类似以下内容添加到aliases数组的末尾：|298890|'Helper'++++++++++=>+'Helpers\Helper'|298891|entityMap^0|M|4|1C|L|0|0|3|C|0|0|A|V|0|0|A|T|0|5|J|1E|7|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|15|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|16|8|@$9|17|A|18|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|19|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|1A|8|@$9|1B|A|1C|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|H|7|1D|8|@]|D|@]|E|$I|J]]|$1|S|3|T|5|6|7|1E|8|@$9|1F|A|1G|B|C]]|D|@]|E|$]]|$1|U|3|V|5|6|7|1H|8|@$9|1I|A|1J|B|C]|$9|1K|A|1L|B|C]]|D|@]|E|$]]|$1|W|3|X|5|H|7|1M|8|@]|D|@]|E|$I|J]]|$1|Y|3|-4|5|6|7|1N|8|@]|D|@]|E|$]]]|Z|$]]

My way of doing this is to create a new folder in the <code>/app</code> directory in the root of your Laravel 4 project. Then add this folder to the first array of the <code>/app/start/global.php</code> file like so:

<pre><code>&lt;?php

ClassLoader::addDirectories(array(

app_path().'/commands',
app_path().'/controllers',
app_path().'/models',
app_path().'/database/seeds',
app_path().'/classes', // This line is the one I've added.

));
</code></pre>

As long as the folder structure within the new <code>/app/classes</code> folder follows your namespacing convention. Laravel 4 will autoload all the classes/files within this folder. This way there's no need to dig into any composer files or run composer command. 

Not sure if this is best practice but it certainly works. 

If you created a simple file called <code>/app/classes/Helpers/Helper.php</code> such as this:

<pre><code>&lt;?php namespace Helpers;

class Helper {

 public static function helloWorld()
 {
 return 'Hello World';
 }
}
</code></pre>

All you would need to do is call <code>Helpers\Helper::helloWorld();</code>

You could also alias this helper class in your <code>/app/config/app.php</code> file. Just add something like this to the end of the <code>aliases</code> array:

<pre><code>'Helper' =&gt; 'Helpers\Helper'
</code></pre>

blocks|key|81665|text|您也可以将View::share()与闭包结合使用来实现这一点--我刚刚发布了：http://www.develophp.org/2014/07/laravel-4-blade-helper-functions/|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|81666|增加的好处:您不需要创建额外的类，还可以保持全局名称空间的整洁。|81667|entityMap|0|LINK|mutability|MUTABLE|url|http://www.develophp.org/2014/07/laravel-4-blade-helper-functions/^0|5|D|14|1U|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

You can also use <code>View::share()</code> together with closures to achieve this - I just posted about this: <a href="http://www.develophp.org/2014/07/laravel-4-blade-helper-functions/" rel="noreferrer">http://www.develophp.org/2014/07/laravel-4-blade-helper-functions/</a>

Added benefit: You don't need to create an extra class and also keep the global namespace clean.

I'm trying to understand the best place to put a global function in Laravel 4. For example, date formatting. I don't think making a facade is worth it as facades are too modular. I've read articles about creating a library folder and storing classes there but that also seems like a lot for a simple function. Shouldn't a 'tool' like this be available in Blade templates?

What are the best practices for something like this and how do I make it available to Blade templates?

Best Practices for Laravel 4 Helpers and Basic Functions?

我正在尝试理解在Laravel 4中放置全局函数的最佳位置。例如，日期格式化。我不认为做一个外观是值得的，因为外观太模块化了。我读过关于创建库文件夹和在其中存储类的文章，但对于一个简单的函数来说，这似乎也很多。难道这样的“工具”不应该在刀片模板中可用吗？这类操作的最佳实践是什么?如何使其可用于刀片模板？

问Laravel 4助手和基本函数的最佳实践？
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问Laravel 4助手和基本函数的最佳实践？EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问Laravel 4助手和基本函数的最佳实践？
EN