Question

在我的路由中，如果我删除了{page}前缀，则可以正常工作，但是当我放入它时，会出现错误。对于其他方法，它工作正常，但不适用于此路由：Route :: get（'/ {categories}'，'AdminVisible \ CostIncludeController @ index'）; 我的AdminPageController：

public interface IElement
{
    Type ResultType { get; }
    TResult Accept<TResult>(IElementVisitor<TResult> visitor);
}

public class ConstElement : IElement
{
    public object Value { get; set; }
    public Type ResultType => Value?.GetType();
    public TResult Accept<TResult>(IElementVisitor<TResult> visitor)
    {
        return visitor.VisitElement(this);
    }
}

public class BinaryElement : IElement
{
    // Child properties are not strongly typed.
    public IElement Left { get; set; }
    public IElement Right { get; set; }
    public Operand Operand { get; set; }
    public Type ResultType => Operand switch
    {
        Operand.Equal => typeof(bool),
        Operand.GreaterThan => typeof(bool),
        Operand.Plus => Left.GetType(),
        Operand.Multiply => Left.GetType(),
        _ => throw new NotImplementedException(),
    };
    public TResult Accept<TResult>(IElementVisitor<TResult> visitor)
    {
        return visitor.VisitElement(this);
    }
}

public enum Operand { Equal, GreaterThan, Plus, Multiply }

public class ConstElementValidator : AbstractValidator<ConstElement>
{
    public ConstElementValidator()
    {
        RuleFor(ele => ele.Value).NotNull().Must(value => (value is double) || (value is TimeSpan));
    }
}

public class BinaryElementValidator : AbstractValidator<BinaryElement>
{
    public BinaryElementValidator()
    {
        // Rules for the element itself
        RuleFor(ele => ele.Left).NotNull();
        RuleFor(ele => ele.Right).NotNull();
        RuleFor(ele => ele).Must(ele => IsValidResultTypeCombination(ele.Left.ResultType, ele.Right.ResultType, ele.Operand));
        // Add rules for child elements here? How?
    }
    private bool IsValidResultTypeCombination(Type left, Type right, Operand operand)
    {
        if (left == typeof(bool) && right != typeof(bool))
            return false;
        // other result type validations...
        return true;
    }
}

public interface IElementVisitor<TResult>
{
    TResult VisitElement(ConstElement element);
    TResult VisitElement(BinaryElement element);
}

public class ValidationVisitor : IElementVisitor<ValidationResult>
{
    public ValidationResult VisitElement(ConstElement element)
    {
        return new ConstElementValidator().Validate(element);
    }

    public ValidationResult VisitElement(BinaryElement element)
    {
        // How to add validation of element.Left and element.Right, 
        // taking into account, that their type is IElement, while Validators are bound to the implementation type?
        var result = new BinaryElementValidator().Validate(element);
        var leftResult = element.Left.Accept(this);
        var rightResult = element.Right.Accept(this);
        // merge leftResult and rightResult with result
        return result;
    }
}

我的CostIncludeController：

    public function index($page)
    {
        $page = Page::where('Pages_Slug_Name',$page)->firstorFail();
        $pages = Page::all();
        return view('admin.pages.page',[
            'page' => $page,
        ],compact('pages'));
    }

我的路线：

    public function index($categories){
        $pages = Page::all();
        $packages = Package::where('slug',$categories)->first();
        return view('admin.pages.costinclude',[
            'packages' => $packages,
        ],compact('pages'));    
    }

我的blade.php文件：

Auth::routes(['register' => false,'login' => false]);
Route::prefix('admin')->group(function() {
    Route::get('/')->name('login')->uses('Auth\LoginController@showLoginForm');
    Route::post('/')->name('login')->uses('Auth\LoginController@login');
    Route::get('/dashboard', 'AdminVisible\HomeController@index')->name('admin.dashboard');
    Route::prefix('pages')->group(function() {
        Route::get('/','AdminVisible\AdminPageController@pages')->name('pages');
        Route::prefix('{page}')->group(function() {
            Route::get('/','AdminVisible\AdminPageController@index')->name('page');
            Route::get('/banner', 'AdminVisible\BannerController@index');
            Route::get('/why-with-us', 'AdminVisible\WhyWithUsController@index');
            Route::get('/testimonials', 'AdminVisible\TestimonialsController@index');
            Route::get('/about', 'AdminVisible\AboutController@index');
            Route::get('/about-why-with-us', 'AdminVisible\AboutWhyWithUsController@index');
            Route::get('/general-information', 'AdminVisible\PackageController@index');
            Route::get('/package-program', 'AdminVisible\PackageController@index');
            Route::get('/cost-exclude', 'AdminVisible\PackageController@index');
            Route::prefix('cost-include')->group(function() {
                Route::get('/', 'AdminVisible\PackageController@index');
                Route::get('/{categories}', 'AdminVisible\CostIncludeController@index');
            });
        });
    }); 
});

带有{page}前缀：

没有{page}前缀：

当我做dd（）时，带{page}前缀：

我做dd（）时没有{page}前缀：

Answer 1

在您的CostIncludeController @ index中，添加新变量。路由器希望您处理两个变量。

public function index($page, $categories){
    $pages = Page::all();
    $packages = Package::where('slug',$categories)->first();
    return view('admin.pages.costinclude',[
        'packages' => $packages,
    ],compact('pages'));    
}

在两种情况下，您都可以通过在控制器函数内执行dd($categories)来确认错误原因。

Answer 2

似乎我们需要在$page中传递CostIncludesController参数。这篇文章回答了同样的问题：

I am having trouble with my route in laravel

路由错误是由于我的路由中存在组前缀

2 个答案: