Laravel SQLSTATE[42S22]: Column not found: 1054 Unknown column - mysql

Question

I am trying to make a relationship with lecturers table and users table. So this is the code of create_lecturers_table
public function up()
{
Schema::create('lecturers', function (Blueprint $table) {
$table->bigIncrements('id');
$table->integer('class03');
$table->integer('class03_stream');
$table->date('class03_from');
$table->date('class03_to');
$table->string('remarks')->nullable();
$table->integer('created_user_id')->unsigned()->nullable();
$table->integer('updated_user_id')->unsigned()->nullable();
$table->foreign('created_user_id')->references('id')->on('users');
$table->foreign('updated_user_id')->references('id')->on('users');
$table->timestamps();
});
}
This is the Lecturer model
class Lecturer extends Model
{
protected $table = 'lecturers';
protected $fillable = [
'class03', 'class03_stream' ,'class03_from','class03_to','remarks','created_user_id','updated_user_id',
];
public function user(){
return $this->hasMany('PMS\User');
}
}
This is the lecturer index function of the controller
public function index(Lecturer $model)
{
return view('lecturers.index',['lecturers' => $model->paginate(15)]);
}
This is the create_users_table
public function up()
{
Schema::create('users', function (Blueprint $table) {
$table->bigIncrements('user');
$table->string('name');
$table->string('email')->unique();
$table->timestamp('email_verified_at')->nullable();
$table->string('password');
$table->string('usertype');
$table->boolean('activestatus')->default(false);
$table->rememberToken();
$table->timestamps();
});
}
This is the User model
class User extends Authenticatable
{
use Notifiable;
public function lecturer(){
return $this->belongsTo('PMS\Lecturer');
}
protected $fillable = [
'name', 'email', 'password','usertype',
];
With this what I wants to do is to view the User's name who will create the lecturer via System.So that I have echo the user's name as below in the view.blade.php
<td>{{ $lecturer->user->name }}
When I go to the view it generate this error.
ErrorException (E_ERROR)
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'users.lecturer_id' in 'where clause' (SQL: select * from `users` where `users`.`lecturer_id` = 1 and `users`.`lecturer_id` is not null) (View: E:\BIT FINAL YEAR PROJECTS\20190419-using-template\resources\views\lecturers\index.blade.php)
Could someone please tell me what is the wrong .
Thanks

Answer 1

I think you have your Eloquent relationships the wrong way around. Try changing them to as follows:
Lecturer
public function user(){
return $this->belongsTo('PMS\User', 'created_user_id');
}
User
public function lecturers(){
return $this->hasMany('PMS\Lecturer', 'created_user_id');
}