Laravel Blade，如何附加到一个部分
[英]laravel blade, how to append to a section
问题描述
If you look to laravel official documentation http://laravel.com/docs/4.2/templates It says that giving this layout:
如果你看 laravel 官方文档http://laravel.com/docs/4.2/templates它说给出这个布局：
<!-- Stored in app/views/layouts/master.blade.php -->
<html>
<body>
@section('sidebar')
This is the master sidebar.
@show
<div class="container">
@yield('content')
</div>
</body>
</html>
Extended by this view此视图扩展
@extends('layouts.master')
@section('sidebar')
<p>This is appended to the master sidebar.</p>
@stop
@section('content')
<p>This is my body content.</p>
@stop
Will append to the section sidebar .将附加到部分sidebar 。 But actually if you try is it doesn't append, it just override the content from the extended template.但实际上，如果您尝试它不附加，它只是覆盖扩展模板中的内容。
I heard about others blade function like @append, @prepend, @parent ... no one seems to work.我听说其他刀片功能，如@append, @prepend, @parent ......似乎没有人工作。
Beside, this example in the official doc which doesn't work, I find that the blade documentation is very poor.另外，官方文档中的这个例子不起作用，我发现刀片文档非常糟糕。 There's nothing about blade function like @parent for instance.例如，没有像@parent这样的刀片功能。
3 个解决方案
解决方案1
58 已采纳 2014-10-28 19:33:32
The example in the documentation from Laravel website does indeed seem to be flawed, but I think it's a markdown parsing problem on the website, the same docs on github show the correct code: Laravel 网站文档中的示例确实似乎有缺陷，但我认为这是网站上的降价解析问题， github 上的相同文档显示了正确的代码：
In any case @parent does indeed work.无论如何@parent确实有效。 The example in the docs should look like this:文档中的示例应如下所示：
@extends('layouts.master')
@section('sidebar')
@parent
<p>This is appended to the master sidebar.</p>
@stop
@section('content')
<p>This is my body content.</p>
@stop
A quick look in the Illuminate/View/Factory.php confirms what @parent does:快速查看Illuminate/View/Factory.php确认@parent做了什么：
/**
* Append content to a given section.
*
* @param string $section
* @param string $content
* @return void
*/
protected function extendSection($section, $content)
{
if (isset($this->sections[$section]))
{
$content = str_replace('@parent', $content, $this->sections[$section]);
}
$this->sections[$section] = $content;
}
解决方案2
25 2014-11-03 05:23:26
You can simply use @append ...您可以简单地使用@append ...
@extends('layouts.master')
@section('sidebar')
<p>This is appended to the master sidebar.</p>
@append
@section('content')
<p>This is my body content.</p>
@stop
To understand how this works...要了解这是如何工作的...
The compileStatements() method in the BladeCompiler calls the method compileAppend() , as you can see here: compileStatements()方法调用方法compileAppend() ，如下所示：
/**
* Compile Blade Statements that start with "@"
*
* @param string $value
* @return mixed
*/
protected function compileStatements($value)
{
$callback = function($match)
{
if (method_exists($this, $method = 'compile'.ucfirst($match[1])))
{
$match[0] = $this->$method(array_get($match, 3));
}
return isset($match[3]) ? $match[0] : $match[0].$match[2];
};
return preg_replace_callback('/\B@(\w+)([ \t]*)(\( ( (?>[^()]+) | (?3) )* \))?/x', $callback, $value);
}
In turn, that inserts a call to appendSection() which looks like this:反过来，这会插入对appendSection()的调用，如下所示：
/**
* Stop injecting content into a section and append it.
*
* @return string
*/
public function appendSection()
{
$last = array_pop($this->sectionStack);
if (isset($this->sections[$last]))
{
$this->sections[$last] .= ob_get_clean();
}
else
{
$this->sections[$last] = ob_get_clean();
}
return $last;
}
解决方案3
1 2016-06-11 05:10:00
as mentioned before, I used @parent and it works fine for me.如前所述，我使用了@parent ，它对我来说很好用。 May be an example for extended title will helps:可能是扩展title的示例将有助于：
master.blade.php master.blade.php
@section('title')
My Blog
@stop
<!doctype html>
<html>
<head>
@include('includes.head')
</head>
<body>
<div class="container-fluid">
<div id="main" class="row">
@yield('content')
</div>
</div>
</body>
</html>
includes/head.blade.php包括/head.blade.php
<meta charset="utf-8">
<title>@yield('title')</title>
post.blade.php post.blade.php
@extends('master')
@section('title')
@parent
| {{$post->title }}
@stop
@section('content')
// Post Body here ..
@stop
Therefore, The Title will be rendered to be like this:因此，标题将呈现为如下所示：
My Blog |
Actually, this will render something like:实际上，这将呈现如下内容：
<title>
My Blog
| My Post Title
</title>
so you can use the section second parameter to set the values:因此您可以使用第二个参数部分来设置值：
includes/head.blade.php包括/head.blade.php
...
@section('title', 'My Blog')
...
post.blade.php post.blade.php
...
@section('title', '@parent | ' . $post->ar_name )
...
And this will render:这将呈现：
<title>My Blog | My Post Title</title>
So you will get rid of the lines inside the title,所以你将摆脱标题内的行，
Hope that's helps.希望这有帮助。
Note: This is used for Laravel 5.2, Not quite sure but as I remember, it works for Laravel 4 too.注意：这用于 Laravel 5.2，不太确定，但我记得，它也适用于 Laravel 4。
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