Laravel 4 - 理解 View::share()
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Laravel 4 - understanding View::share()
提问by user2094178
From what I understand:
据我了解：
View::share('foo','bar');
Will make $foo available in all views.
将使 $foo 在所有视图中可用。
However, is it correct to say View::share()can be used only in the __construct()?
但是，说View::share()只能在 中使用是否正确__construct()？
Because from outside __construct()I can't make it to work.
因为从外面__construct()我不能让它工作。
采纳答案by Jason Lewis
View::shareshould be available anywherewithin your application. A common place that it is used is in view composers, but it should be usable within a route or wherever you need it.
View::share应该可以在您的应用程序中的任何地方使用。使用它的一个常见地方是在视图作曲家中，但它应该可以在路线内或任何您需要的地方使用。
回答by Matt Pavelle
Yes, adding:
是的，补充：
View::share('foo','bar');
in your routes.php file will make $foo (with a value of 'bar') available in all views. This is especially useful for something like Twitter Bootstrap's "active" navigation classes. For example, you could do:
在您的 routes.php 文件中，所有视图中都可以使用 $foo（值为 'bar'）。这对于诸如 Twitter Bootstrap 的“活动”导航类之类的东西特别有用。例如，你可以这样做：
View::share('navactive', '');
to make sure the navactive variable is set in all views (and thus won't throw errors) and then when you are making views (in your controller, for example), you could pass:
确保在所有视图中都设置了 navactive 变量（因此不会抛出错误），然后当您创建视图时（例如在您的控制器中），您可以通过：
return View::make('one')->with('navactive', 'one');
and then in your view (preferably some bootstrappy blade template) you can do the following:
然后在您的视图中（最好是一些引导刀片模板），您可以执行以下操作：
<ul class="nav">
@if ( Auth::user() )
<li @if ($navactive === 'one') class="active" @endif><a href="{{{ URL::to('one/') }}}">One</a></li>
<li @if ($navactive === 'three') class="active" @endif><a href="{{{ URL::to('three/') }}}">Three</a></li>
<li @if ($navactive === 'five') class="active" @endif><a href="{{{ URL::to('five/') }}}">Five</a></li>
@endif
</ul>
回答by dud3
Basically if you want to share the variables through all view, you might first want to create a base route(E.x.:internalController.php) as a parent class then extend other controllers as a child of it(E.x:childController.php).
基本上，如果您想通过所有视图共享变量，您可能首先要创建一个基本路由（例如：）internalController.php作为父类，然后将其他控制器扩展为它的子类（例如：）childController.php。
And yeah you will most likely set the view::share('foo', $bar)in the __constructor()of the internalController.php, since it lunches whenever the class is initialized, this way the parent class will serve the variable values to the child classes.
和是你最有可能设置view::share('foo', $bar)在__constructor()的internalController.php，因为它的午餐每当类被初始化，这样的父类将成为变量值的子类。
