几天前，我开始使用Laravel 8和livewire。我还有很多发现，但我正在路上。
最后，我遇到了无法理解的行为。
我想创建一个包含CRUD帖子的页面。我想要的是在页面底部显示分页显示的帖子列表，创建新帖子的按钮以及单击每个帖子行上的按钮以编辑帖子的可能性。 我还希望隐藏列表的同时在页面顶部显示帖子的编辑器（但这并不是绝对必要的）。
只要帖子列表没有分页但没有分页，我就可以设法使它工作。
为此，我使用一个liveewire组件，其代码如下：
<?php
namespace App\Http\Livewire\Posts;
use App\Models\Post;
use Livewire\Component;
class Posts extends Component
{
public $posts;
public $links;
public $post_id,$title, $abstract, $body,$category,$diaporama_dir,
$beg_date,$end_date,$close_date,$receive_registration,
$sticky,$user_id,$inscription_directive;
/**
* The attributes that are mass assignable.
*
* @var array
*/
public function render()
{
$this->mode='list';
$this->posts=Post::select('id','title')->orderBy('created_at','DESC')->paginate(15)->toArray();
$this->links=$this->posts['links'];
//dd($this->links);
$this->user_id=auth()->user()->id;
return view('livewire.posts.posts');
}
public function donothing(){
}
/*
* The attributes that are mass assignable.
*
* @var array
*/
public function resetInputFields(){
$this->title = '';
$this->body = '';
$this->title='';
$this->abstract='';
$this->body='';
$this->category='';
$this->diaporama_dir='';
$this->beg_date='';
$this->end_date='';
$this->close_date='';
$this->receive_registration='';
$this->sticky='';
$this->inscription_directive='';
}
/**
* The attributes that are mass assignable.
*
* @var array
*/
public function store()
{
$validatedData = $this->validate([
'title' => 'required',
'body' => 'required',
'abstract'=>'required',
'category'=>'',
'diaporama_dir'=>'',
'beg_date'=>'sometimes',
'end_date'=>'sometimes',
'close_date'=>'sometimes',
'receive_registration'=>'',
'sticky'=>'',
'user_id'=>'required',
'inscription_directive'=>''
]);
Post::create($validatedData);
session()->flash('message', 'Bravo ! Votre article a été enregistré.');
// $this->resetInputFields(); //user may want to keep the input stable
}
/**
* The attributes that are mass assignable.
*
* @var array
*/
public function edit($id)
{
$post = Post::findOrFail($id);
$this->post_id = $id;
$this->title = $post->title;
$this->abstract=$post->abstract;
$this->body=$post->body;
$this->category=$post->category;
$this->diaporama_dir=$post->diaporama_dir;
$this->beg_date=$post->beg_date;
$this->end_date=$post->end_date;
$this->close_date=$post->close_date;
$this->receive_registration=$post->receive_registration;
$this->sticky=$post->sticky;
$this->inscription_directive=$post->inscription_directive;
$this->dispatchBrowserEvent('notify','je passe en mode edit');//to switch browser page to edit mode
}
/**
* The attributes that are mass assignable.
*
* @var array
*/
public function update()
{
$validatedData = $this->validate([
'title' => 'required',
'body' => 'required',
'abstract'=>'required',
'category'=>'',
'diaporama_dir'=>'',
'beg_date'=>'sometimes',
'end_date'=>'sometimes',
'close_date'=>'sometimes',
'receive_registration'=>'',
'sticky'=>'',
'user_id'=>'required',
'inscription_directive'=>''
]);
$post = Post::find($this->post_id);
$post->update([
'title' => $this->title,
'body'=> $this->body,
'abstract'=> $this->abstract,
'category'=> $this->category,
'diaporama_dir'=>$this->diaporama_dir,
'beg_date'=>$this->beg_date,
'end_date'=>$this->end_date,
'close_date'=>$this->close_date,
'receive_registration'=>$this->receive_registration,
'sticky'=>$this->sticky,
'user_id'=>$this->user_id,
'inscription_directive'=>$this->inscription_directive
]);
session()->flash('message', "Bravo ! L'article a été mis à jour.");
// $this->resetInputFields();//user may like to keep the input fields stable
}
}
视图如下：
<div class="container m-auto w-10/12">
<div x-data="{ mode: 'list' }">
@if (session()->has('message'))
<div class="bg-green-200 p-4 w-full my-8 text-xl text-orange-500">
{{ session('message') }}
</div>
@endif
<div x-on:notify.window="mode = 'update'">
<div x-show="mode==='update'">
@include('livewire.posts.update')
</div>
<div x-show="mode === 'edit'">
@include('livewire.posts.create')
</div>
</div>
{{-- <div x-show="mode === 'list'" class="">--}}
<div>
<div>
<button x-on:click="mode = 'edit'" class="bg-red-400 px-2 py-1 border rounded-lg mt-2">Nouvel
article</button>
</div>
<table class=" bg-green-400 w-full table table-bordered mt-5 ">
<thead>
<tr class="bg-red-50 mb-2">
<th>Id.</th>
<th>Titre</th>
<th width="150px">Action</th>
</tr>
</thead>
<tbody>
@for ($i = 0; $i < $posts['per_page']; $i++)
<tr class="bg-red-400 mb-2 p-2 space-y-2 border-8 border-red-50 ">
<td>{{ $posts['data'][$i]['id'] }}</td>
<td>{{ $posts['data'][$i]['title'] }}</td>
<td>{{--les actions--}}
<button wire:click="edit({{ $posts['data'][$i]['id'] }})"
class="btn btn-primary btn-sm">Edit</button>
{{-- <button wire:click="delete({{ $post->id }})"
class="btn btn-danger btn-sm">Delete</button>--}}
</td>
</tr>
@endfor
</tbody>
</table>
<div class="flex flex-row mt-2">
@for ($i = 0; $i < count($links); $i++)
<div class="flex p-2 mr-2 border w-max-content">
<a href="{{$links[$i]['url'] }}">{{$links[$i]['label']}}</a>
</div>
@endfor
</div>
</div>
</div>
<div class="container bg-green-500 p-4">
<form>
This is the create form
<input type="hidden" name="user_id" wire:model="user_id" >
<div class="flex flex-col md:flex-row" >
<div class=" mt-2 flex flex-col w-max-content">
<label for="category">Catégorie:</label>
<select class="" name="category" id="category" wire:model="category">
<option value="Sans">Sans</option>
<option value="Annoncement">Annonce d'un événement</option>
</select>
@error('category') <span class="text-danger">{{ $message }}</span>@enderror
</div>
<div class=" mt-2 flex flex-col flex-auto ml-4">
<label for="title">Title:</label>
<input type="text" class="form-control" name="title" id="title" placeholder="Saisissez un titre"
wire:model="title" value="">
@error('title') <span class="text-danger">{{ $message }}</span>@enderror
</div>
</div>
<div class="flex flex-col md:flex-row" >
<div class=" mt-2 flex flex-col w-max-cbeg_date ">
<label for="beg_date">Date de début</label>
<input type="text" class="" name="beg_date" id="beg_date" wire:model="beg_date">
@error('beg_date') <span class="text-danger">{{ $message }}</span>@enderror
</div>
<div class=" mt-2 flex flex-col w-max-cbeg_date ml-4">
<label for="end_date">Datend_date</label>
<input type="text" class="" name="end_date" id="end_date" wire:model="end_date">
@error('end_date') <span class="text-danger">{{ $message }}</span>@enderror
</div>
<div class=" mt-2 flex flex-col w-max-cbeg_date ml-4">
<label for="close_dclose">Date limite</label>
<input type="text" class="" name="close_date" id="close_date" wire:model="close_date">
@error('close_date') <span class="text-danger">{{ $message }}</span>@enderror
</div>
<div class=" mt-2 flex flex-col w-max-content ml-4">
<label for="receive_registration">Accepte les inscriptions:</label>
<select class="" name="receive_registration" id="receive_registration" wire:model="receive_registration">
<option value="no">Non</option>
<option value="yes">Oui</option>
</select>
@error('receive_registration') <span class="text-danger">{{ $message }}</span>@enderror
</div>
<div class=" mt-2 flex flex-col flex-auto ml-4">
<label for="title">Dossier du diaporama</label>
<input type="text" class="form-control" name="diaporama_dir" id="diaporama_dir" placeholder="ex: admin/1"
wire:model="diaporama_dir">
@error('diaporama_dir') <span class="text-danger">{{ $message }}</span>@enderror
</div>
</div>
<div class="mt-2 flex flex-col">
<label for="abstract">Résumé</label>
<textarea class="form-control" name="abstract" id="abstract" wire:model="abstract"
placeholder="Saisissez votre article"></textarea>
@error('abstract') <span class="text-danger">{{ $message }}</span>@enderror
</div>
<div class="mt-2 flex flex-col">
<label for="body">Corps de l'article</label>
<textarea class="form-control" name="body" id="body" wire:model="body" rows=30
placeholder="Saisissez votre article"></textarea>
@error('body') <span class="text-danger">{{ $message }}</span>@enderror
</div>
<button wire:click.prevent="store()" class="bg-red-400 px-2 py-1 border rounded-lg mt-2">Enregistrer</button>
<button wire:click.prevent="resetInputFields()" class="bg-red-400 px-2 py-1 border rounded-lg mt-2">Effacer tout</button>
<button @click.prevent="mode = 'list'" class="bg-red-400 px-2 py-1 border rounded-lg mt-2 ml-16">Retour à la liste</button>
</form>
更新包含与创建包含完全相同，除了帖子ID的其他隐藏字段。
在启动时，我的意思是当我访问 localhost：8000 / posts 页面时，页面1正确显示，并且页面底部的链接类似于 localhost：8000 / posts？page = 3 可能是页面的多少。
通常，我可以从此页面使用底部链接转到另一页，多次。
单击链接编辑帖子时出现问题。服务器已正确发送了该帖子，但是我们立即切换到了分页帖子的第1 页，并且底部链接采用一种奇怪的形式，例如 > localhost：8000 / livewire / message / posts.posts？page = 3 。
在显示创建表单后，在字段中键入第一个字符时，也会出现问题。实际上，似乎每次需要同步时都会出现。
我该如何解决？
答案 0 :(得分：0)
替换
<div class="flex flex-row mt-2">
@for ($i = 0; $i < count($links); $i++)
<div class="flex p-2 mr-2 border w-max-content">
<a href="{{$links[$i]['url'] }}">{{$links[$i]['label']}}</a>
</div>
@endfor
</div>
使用
<div class="flex flex-row mt-2">
{{ $posts->links() }}
</div>
和组件
use WithPagination;