Data not pulling through to form - laravel - php

Question

I am trying to pull data from a form and as per my screenshot below the data will not display, but it appears to be functioning to a certain extent as there are two users which exist in my instructor variable and there are two options to select from, can anyone help?
create.blade.php
#extends('layouts.app')
#section('content')
<div class="row justify-content-center">
<div class="col-md-8">
<div class="card">
<div class="card-header">Create Course</div>
<div class="card-body">
<form method="POST" action="{{ route('admin.courses.store') }}" enctype="multipart/form-data">
#csrf
<div class="form-group">
#if (Auth::user()->isAdmin())
{!! Form::label('Instructor', 'Instructor', ['class' => 'control-label']) !!}
{!! Form::select('Instructor[]', $Instructor, Input::get('Instructor'), ['class' => 'form-control select2', 'multiple' => 'multiple']) !!}
#if($errors->has('Instructor'))
<p class="help-block">
{{ $errors->first('Instructor') }}
</p>
#endif
</div>
<div class="form-group">
<label class="required" for="name">Course Title</label>
<input class="form-control {{ $errors->has('title') ? 'is-invalid' : '' }}" type="text" name="title" id="id" value="{{ old('title', '') }}" required>
#if($errors->has('name'))
<div class="invalid-feedback">
{{ $errors->first('name') }}
</div>
#endif
</div>
<div class="form-group">
<button class="btn btn-danger" type="submit">
Save
</button>
</div>
</div>
#endif
</form>
</div>
</div>
#endsection
CoursesController
protected function create()
{
{
$Instructor = \App\User::whereHas('role', function ($q) { $q->where('role_id', 2); } )->get()->pluck('title', 'id');
// $courses = Course::all()->pluck('title');
return view('admin.courses.create', compact('Instructor'));
}
}
User.php
class User extends Authenticatable
{
protected $fillable = [
'name', 'email', 'password',
];
protected $hidden = [
'password', 'remember_token',
];
public function role()
{
return $this->belongsToMany(Role::class, 'role_user');
}
public function isAdmin()
{
return $this->role()->where('role_id', 1)->first();
}
public function roles(){
return $this->belongsToMany('App\Role');
}
Thanks for any help.

Answer 1

The Laravel Collective Form::select requires the values to be in a [ key => value ] array pair. You are passing it a result collection.
You need to translate the result of $Instructor = \App\User::whereHas('role', function ($q) { $q->where('role_id', 2); } )->get()->pluck('title', 'id'); to an array that is (I assume) [ id => title, id => title ]...
So, before you pass it to your view something like this:
$flatInstructors = []
$Instructor->each(function($item, $key) {
$flatInstructors[$item->id] = $item->title;
});
return view('admin.courses.create', compact('flatInstructors'));
And use $flatInstructors in your Form::select generation.