带有强制参数的 Laravel 路由控制器
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Laravel Route Controller with Forced Parameter
提问by azngunit81
So i have checked out PHP - Routing with Parameters in Laraveland Laravel 4 mandatory parameters error
所以我检查了 PHP - Routing with Parameters in Laravel和 Laravel 4 强制参数错误
However using what is said - I cannot seem to make a simple routing possible unless im not understanding how filter/get/parameters works.
然而，使用所说的 - 我似乎无法使简单的路由成为可能，除非我不了解过滤器/获取/参数的工作原理。
So what I would like to do is have a route a URL of /display/2 where display is an action and the 2 is an id but I would like to restrict it to numbers only.
所以我想做的是有一个路由 /display/2 的 URL，其中 display 是一个动作，2 是一个 id，但我想将它限制为仅数字。
I thought
我想
Route::get('displayproduct/(:num)','SiteController@display');
Route::get('/', 'SiteController@index');
class SiteController extends BaseController {
public function index()
{
return "i'm with index";
}
public function display($id)
{
return $id;
}
}
The problem is that it throws a 404 if i use
问题是如果我使用它会抛出 404
Route::get('displayproduct/{id}','SiteController@display');
it will pass the parameter however the URL can be display/ABC and it will pass the parameter. I would like to restrict it to numbers only.
它将传递参数，但是 URL 可以是 display/ABC 并且它将传递参数。我想将其限制为仅数字。
I also don't want it to be restful because index I would ideally would like to mix this controller with different actions.
我也不希望它是宁静的，因为我希望将这个控制器与不同的动作混合在一起。
回答by dragoon
Assuming you're using Laravel 4 you can't use (:num), you need to use a regular expression to filter.
假设您使用的是 Laravel 4，则不能使用 (:num)，则需要使用正则表达式进行过滤。
Route::get('displayproduct/{id}','SiteController@display')->where('id', '[0-9]+');
回答by Lucky Soni
You may also define global route patterns
您还可以定义全局路由模式
Route::pattern('id', '\d+');
How/When this is helpful?
这如何/何时有帮助？
Suppose you have multiple Routes that require a parameter (lets say id):
假设您有多个需要参数的路由（假设id）：
Route::get('displayproduct/{id}','SiteController@display');
Route::get('editproduct/{id}','SiteController@edit');
And you know that in all cases an idhas to be a digit(s).
而且您知道在所有情况下 anid都必须是数字。
Then simply setting a constrain on ALL idparameter across all routes is possible using Route patterns
然后id可以使用简单地在所有路由上设置对所有参数的约束Route patterns
Route::pattern('id', '\d+');
Doing the above will make sure that all Routes that accept idas a parameter will apply the constrain that idneeds to be a digit(s).
执行上述操作将确保所有接受id作为参数的路由都将应用id需要为数字的约束。
