在 Laravel 8 中将多个变量从不同控制器传递到单个视图

Question

我需要将两个变量从两个不同的控制器传递到一个视图，并将数组变量的不同值显示到 Laravel 8 中两个不同的 html 表单的 select 选项。但是 Laravel 似乎不允许将两个不同的变量传递给单个视图。

我该如何解决这个问题？

Please find the error screenshot from this link.

涉及的控制器：TimeController、CourseController

时间控制器：

    <?php

namespace App\Http\Controllers;

use App\Models\Time;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class TimeController extends Controller
{
    public function loadTime()
    {
        $timeData = DB::table('time')->select('*')->get();
        return view('admin.forms.enrollment', ['timeList' => $timeData]);
    }
}

课程控制器：

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class CourseController extends Controller
{
    public function loadCourses()
    {
        $courseData = DB::table('courses')->select('*')->get();
        return view('admin.forms.enrollment', ['courseList' => $courseData]);

        // $timeData = DB::table('time')->select('*')->get();
        // return view('admin.forms.enrollment', ['timeList' => $timeData]);
    }
}

路线：

Route::get('/enroll', [TimeController::class, 'loadTime'])->name('loadTime');
Route::get('/enroll', [CourseController::class, 'loadCourses'])->name('loadCourses');

查看：

@extends('admin.forms.layout')

@section('form')

<div class="form-group row">
          <div class="col-sm-4">
            <label for="lastname" class="col-sm-6 col-form-label">Username</label>
            <div class="col-sm-10">
              <input type="text" class="form-control" id="uname" placeholder="eg. Khatri0b3d020d">
            </div>
          </div>
          <div class="col-sm-4">
            <label for="course" class="col-sm-6 col-form-label">Course</label>
            <div class="col-sm-10">
              <select name="course" id="course" class="form-control">
              
            @foreach($courseList as $course)

                <option value="{{$course->vehicle_category}}">{{$course->course_type}}</option>

              </select>
            </div>
          </div>
        </div>

        <div class="form-group row">
          <div class="col-sm-4">
            <label for="email" class="col-sm-6 col-form-label">Package</label>
            <div class="col-sm-10">
              <input type="email" class="form-control" id="email" placeholder="eg. khatriram55@gmail.com">
            </div>
          </div>
          <div class="col-sm-4">
            <label for="phone" class="col-sm-6 col-form-label" value="+977">Start Date</label>
            <div class="col-sm-10">
              <input type="date" class="form-control" id="date" min="{{date('Y-m-d')}}">
            </div>
          </div>
        </div>

        <div class="form-group row">
          <div class="col-sm-4">
            <label for="time" class="col-sm-6 col-form-label">Preferred Time</label>
            <div class="col-sm-10">
              <select name="time" id="time" class="form-control">
                <option selected default>Select your preferred time</option>
                
                @foreach($timeList as $time)

                <option value="{{$time->id}}">{{$time->time}}</option>

                @endforeach 

              </select>
            </div>
          </div>
        </div>

        <div class="form-group row">
          <div class="col-sm-4">
            <input type="submit" value="Admit" name="admit" class="btn btn-success">
          </div>
</div>

@endsection

Answer 1

根据您的评论，我理解您的问题。而且你不需要两个控制器和单独的路由。

通过运行

创建名称为 StudentEnrollmentController 的新控制器

php artisan make:controller StudentEnrollmentController 并将以下代码粘贴到控制器

<?php

namespace App\Http\Controllers;

use App\Models\Time;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class StudentEnrollmentController extends Controller
{
    public function showEnrollmentForm()
    {
        $timeData = DB::table('time')->get();
        $courseData = DB::table('courses')->get();
        return view('admin.forms.enrollment', compact('timeData', 'courseData'));
    }
}

将以下行添加到 routes/web.php

Route::get('/enrollmentForm', [App\Http\Controllers\App\Http\Controllers::class, 'showEnrollmentForm'])->name('enrollmentForm');

现在访问 URL enrollmentForm 它将正确显示表单。

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