我想阅读培训师和类(class)表之间的中间表的内容,以便能够标记给定培训师的事件类(class)的复选框,我该怎么做?
在这里您可以查看培训师表 http://prntscr.com/nhcrl4
在这里您可以查看类(class)表 http://prntscr.com/nhcrvp
在这里您可以查看 course_trainer(中级)表 http://prntscr.com/nhcsek
我想过使用三元,你建议我吗?
非常感谢
这是表格
<div class="container">
<div class="row">
<div class="col-lg-12">
<form class="form-group" action="{{route('trainers.update', $trainer->id)}}" method="post" enctype="multipart/form-data">
@csrf
@method('PUT')
<div class="form-group">
<label for="name">Nome</label>
<input type="text" class="form-control" name="name" value="{{$trainer->name}}">
</div>
<div class="form-group">
<label for="surname">Cognome</label>
<input type="text" class="form-control" name="surname" value="{{$trainer->surname}}">
</div>
<div class="form-group">
<label for="description">Descrizione</label>
<textarea class="form-control" name="description" rows="8" cols="80">{!! $trainer->description !!}</textarea>
</div>
@foreach ($courses as $course)
<div class="form-check form-check-inline mb-2">
<input name="course_id[]" class="form-check-input" type="checkbox" value="{{$course->id}}">
<label class="form-check-label" for="course_id">{{$course->name_course}}</label>
</div>
@endforeach
<div class="form-group">
<img src="{{asset('storage/'.$trainer->image)}}" alt="">
</div>
<div class="custom-file">
<input type="file" class="custom-file-input" name="image">
<label class="custom-file-label" for="image">Scegli un'immagine</label>
<div class="invalid-feedback"><strong>N.B.</strong> dimensione consigliata 160px x 160px</div>
</div>
<div class="form-group">
<input type="submit" class="form-control" value="MODIFICA ISTRUTTORE">
</div>
</form>
</div>
</div>
</div>
这是 Controller 中的编辑功能
public function edit($id)
{
$trainer = Trainer::find($id);
$courses = Course::all();
return view('trainers.edit', compact('trainer','courses'));
}
这是 Controller 中的更新函数
public function update(Request $request, Trainer $trainer)
{
$data = $request->all();
$trainer->update($data);
$trainer->courses()->sync($data['course_id']);
return redirect()->route('trainers.admin');
}
最佳答案
这是训练师模型
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Trainer extends Model
{
protected $fillable = ['name','surname','description','image'];
public function courses(){
return $this->belongsToMany(Course::class)->withTimestamps();
}
}
这是类(class)模型
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Course extends Model
{
protected $fillable = ['name_course','description_course','logo_course'];
public function trainers(){
return $this->belongsToMany(Trainer::class)->withTimestamps();
}
}
关于php - 我如何从laravel中的中间表(多对多关系)获取数据,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/55873993/