我是Laravel的初学者。我正在使用ajax。我想在我的选择选项中按名字（eleves）姓（prénom）显示学生（nom）的数据，但问题是它仅显示名字（{ {1}}）没有姓氏（标称）。但是我需要关联名字和姓氏。请帮助我。
控制器：
prénom我的视图，在那里我正在使用ajax函数
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Note;
use App\Matiere;
use App\Eleve;
use App\Classe;
use DB;
class DropdownlistController extends Controller
{
public function index()
{
$notes = Note::all();
$matieres = Matiere::all();
$eleves = Eleve::all();
$classes = Classe::all();
$classes = DB::table("classes")->pluck("classe","id");
return view('admin.dropdownlists',compact('classes','notes','matieres','eleves'));
}
public function store(Request $request)
{
Note::create($request->all());
return redirect()->back();
}
public function getStateList(Request $request)
{
$eleves = DB::table("eleves")
->where("classe_id",$request->classe_id)
->pluck("nom" ,"prenom","id");
return response()->json($eleves);
}
public function getCityList(Request $request)
{
$matieres = DB::table("matieres")
->where("classe_id",$request->classe_id)
->pluck("nom_matiere","id");
return response()->json($matieres);
}
}
路线：
@extends('layouts.admin')
@section('content')
<section class="wrapper">
<div class="table-title">
<div class="row">
<div class="col-sm-6">
<h2> ESpace de Gestion <b></b> des notes </h2>
</div>
<div class="col-sm-6">
<a href="#addEmployeeModal" class=" btn btn-success" data-toggle="modal"><i class="material-icons"></i>
<span>Ajouter un nouvelle note </span></a>
</div>
</div>
</div>
<div class="row mt">
@if(session()->has('success'))
<div class="alert alert-success">
{{session()->get('success')}}
</div>
@endif
<div class="col-lg-12">
<div class="content-panel">
<section id="no-more-tables">
<table class="table table-bordered table-striped table-condensed cf">
<thead class="cf">
<tr>
<th>id-note</th>
<th>Nom</th>
<th>classe</th>
<th>matiére</th>
<th>Note</th>
<th>les actions</th>
</tr>
</thead>
<tbody>
@foreach($notes as $note)
<tr>
<td class="numeric" data-title="id-parent">{{$note->id}}</td>
<td class="numeric"
data-title="id-parent">{{$note->eleve->nom}} {{$note->eleve->prenom}}</td>
<td class="numeric" data-title="id-parent">{{$note->classe->classe}}</td>
<td class="numeric" data-title="id-parent">{{$note->matiere->nom_matiere}}</td>
<td class="numeric" data-title="Login">{{$note->note}}</td>
<td>
<button href="#editEmployeeModal" class="btn btn-theme"
data-target="#editEmployeeModal " data-catid={{$note->id}} class="edit"
data-toggle="modal"><i class="material-icons" data-toggle="tooltip"
title="Edit"></i></button>
<button href="#deleteEmployeeModal" class="btn btn-theme"
data-target="#deleteEmployeeModal" data-catid="{{$note->id}}"
class="delete" data-toggle="modal"><i class="material-icons"
data-toggle="tooltip"
title="Delete"></i>
</button>
</td>
</tr>
</tbody>
@endforeach
</table>
<div class="text-center">
</div>
<div class="clearfix">
<div class="hint-text">Affichage de <b>5</b> sur <b>25</b> entrées</div>
<div id="addEmployeeModal" href="create" class="modal fade">
<div class="modal-dialog">
<div class="modal-content">
<form action="{{route('dropdownlists.store')}}" method="post">
{{csrf_field()}}
<div class="modal-header">
<h4 class="modal-title">Ajouter un éléve</h4>
<button type="button" class="close" data-dismiss="modal"
aria-hidden="true">×
</button>
</div>
<div class="modal-body">
<div class="panel-body">
<div class="form-group">
<label for="title">Select classe:</label>
<select id="classe" name="classe" class="form-control"
style="width:350px">
<option value="" selected disabled>Select</option>
@foreach($classes as $key => $classe)
<option value="{{$key}}"> {{$classe}}</option>
@endforeach
</select>
</div>
<div class="form-group">
<label for="title">Select classe:</label>
<select id="eleve" name="eleve" class="form-control"
style="width:350px">
</select>
</div>
<div class="form-group">
<label for="title">Select matiere:</label>
<select id="matiere" name="matiere" class="form-control"
style="width:350px">
<option value="" selected disabled>Select</option>
</select>
</div>
<div class="form-group">
<label>la note </label>
<input type="text" id="note" name="note" class="form-control"
required>
</div>
</div>
<div class="modal-footer">
<input type="button" class="btn btn-default" data-dismiss="modal"
value="Annuler">
<input type="submit" class="btn btn-success" value="Ajouter">
</div>
</form>
</div>
</div>
</div>
</div>
@endsection
@section('js')
<script type="text/javascript">
$('#classe').change(function () {
var classeID = $(this).val();
if (classeID) {
$.ajax({
type: "GET",
url: "{{url('get-state-list')}}?classe_id=" + classeID,
success: function (res) {
if (res) {
$("#eleve").empty();
$("#eleve").append('<option>Select</option>');
$.each(res, function (key, value) {
$("#eleve").append('<option
value = "'+eleve.age+'" > '+value+' < /option>');
});
} else {
$("#eleve").empty();
}
}
});
} else {
$("#classe").empty();
$("#matiere").empty();
}
});
$('#classe').on('change', function () {
var classeID = $(this).val();
if (classeID) {
$.ajax({
type: "GET",
url: "{{url('get-city-list')}}?classe_id=" + classeID,
success: function (res) {
if (res) {
$("#matiere").empty();
$.each(res, function (key, value) {
$("#matiere").append('<option
value = "'+key+'" > '+value+' < /option>');
});
} else {
$("#matiere").empty();
}
}
});
} else {
$("#matiere").empty();
}
});
</script>
@endsection
答案 0 :(得分：1)
Laravel具有非常强大且非常有用的功能，mutators可以使您轻松完成这一工作。通过添加'fullName'变异器，您可以随时在模型中进行此操作。然后，在控制器中，您可以像调用一个字段一样调用该函数。
因此，在您的 Eleve 模型上：
public function getFullNameAttribute(){
return $this->prenom. " " . $this->nom;
}
然后在任何控制器中，例如，当您要将它们发送到下拉列表时，都可以获取您的集合，然后将其转移到所需的数组中。
获取收藏集：
$elevesCollection = \App\Eleve::orderBy('nom')->select('prenom', 'nom', 'id')->get();
然后，从集合中提取全名和ID：
$eleves = $elevesCollection ->pluck('name', 'id')->toArray();
您可以将其发送到表单下拉列表。请仔细检查我的代码/拼写，但这应该可以满足您的要求。