【发布时间】：2021-06-08 03:25:39
【问题描述】：
我有一个通过路由模型绑定显示模型的 livewire 组件，它正在工作，但突然收到以下错误：
Livewire\LivewireManager::mount() 函数的参数太少，传入 0
以下是我的代码示例：
web.php 上的路由
Route::middleware(['auth:sanctum', 'verified'])->group(function() {
Route::get('/admin/intro-section', \App\Http\Livewire\Admin\AdminIntroSection::class)->name('admin.intro-section.index');
Route::get('/admin/intro-section/{id}', \App\Http\Livewire\Admin\AdminIntroSectionShow::class)->name('admin.intro-section.show');
});
Livewire\Admin\中的Livewire组件类
<?php
namespace App\Http\Livewire\Admin;
use Livewire\Component;
use App\Models\IntroSection;
use Illuminate\Support\Collection;
use Livewire\WithFileUploads;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
class AdminIntroSectionShow extends Component
{
use WithFileUploads;
public IntroSection $introSection;
public $photo;
protected $rules = [
'introSection.title' => 'string',
'introSection.description' => 'string',
'introSection.link' => 'string',
'introSection.img_link' => 'string',
'photo' => 'nullable|image|max:2000',
];
public function update(IntroSection $introSection, Request $request)
{
$this->validate();
if ($this->photo) {
$filename = $this->photo->store('img', 'public');
$this->introSection->img_link = $filename;
}
$this->introSection->save();
}
public function mount($id)
{
$this->introSection = IntroSection::where('id', $id)->with(['details'])->first();
}
public function render()
{
return view('livewire.admin.intro-section-show');
}
}
复制步骤
-
在 web.php 上添加路由
-
php artisan make:livewire Admin\AdminIntroSectionShow -
一个名为“IntroSection”的模型，具有以下属性：
'title' => (字符串), '描述' => (文本), '链接' => (字符串), img_link' => (字符串)
您使用的是最新版本的 Livewire：是
代码最后一次工作是在我完成文件上传部分之前。之后，我测试了有效的文件上传。满意后重新加载页面，但是现在mount好像不喜欢了。
关于如何解决这个问题的任何想法？我尝试删除更新功能，将 IntroSection $introsection 传递给 mount 而不是 $id。就我而言，在 livewire 组件上似乎没有什么是微不足道的，但无论如何都在这里：
<div>
<x-slot name="header">
<h2 class="font-semibold text-xl text-gray-800 leading-tight">
{{ __('Intro Section') }}
</h2>
</x-slot>
<div class="max-w-7xl mx-auto py-10 sm:px-6 lg:px-8">
<section class="relative container mx-auto px-4">
<div class="p-4 bg-white shadow-md rounded-lg">
<form wire:submit.prevent="update" class="md:grid md:grid-cols-2 md:gap-6">
<div class="md:col-span-1">
<div class="mb-4">
<label class="border-b-2 border-blue-500">Title</label>
<div class="text-lg font-medium mt-2">{{ $introSection->title }}</div>
<input type="text" name="title" wire:model="introSection.title">
@error('title') {{ $message }} @enderror
</div>
<div class="mb-4">
<label class="border-b-2 border-blue-500">Link</label>
<div class="text-lg font-medium mt-2">{{ $introSection->link }}</div>
<input type="text" name="link" wire:model="introSection.link">
@error('link') {{ $message }} @enderror
</div>
<div class="mb-4">
<label class="border-b-2 border-blue-500">Image</label>
@if ($introSection->img_link)
<img src="{{ asset($introSection->img_link) }}" class="h-24 block mt-2">
@endif
@if ($photo)
<img src="{{ $photo->temporaryUrl() }}" class="block mt-2">
@endif
<div
x-data="{ progress: 0, uploading: false }"
@livewire-upload-start="uploading = true"
@livewire-upload-finish="uploading = false"
@livewire-upload-error="uploading = false"
@livewire-upload-progress="progress = $event.detail.progress">
<input type="file" name="img_link" wire:model="photo" class="block mt-2">
<progress max="100" x-bind:value="progress" x-show="uploading"></progress>
</div>
@error('photo')
{{ $message }}
@enderror
</div>
</div>
<div class="md:col-span-1">
<div class="mb-4">
<label class="border-b-2 border-blue-500">Description</label>
<div class="text-lg font-medium mt-2">{{ $introSection->description }}</div>
<textarea rows="5" cols="50" name="description" wire:model="introSection.description"></textarea>
@error('description') {{ $message }} @enderror
</div>
</div>
<div class="md:col-span-1">
<button class="px-4 py-2 bg-blue-600 border border-transparent rounded-md font-semibold text-xs text-white uppercase tracking-widest hover:bg-blue-500 active:bg-blue-900 focus:outline-none focus:border-blue-900 focus:shadow-outline-gray disabled:opacity-25 transition ease-in-out duration-150">Save</button>
</div>
</form>
</div>
</section>
</div>
</div>
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标签： php laravel laravel-8 laravel-livewire