Call to a member function attach() on boolean - Laravel - php

Question

i have a problem with function attach(). I have created 3 tables. 1 table is for added movies. Table 2 applies to the movie categories. 3 table is a collection of movie ID and category ID. A combination of many to many.
When i want add a new video with category from form this i have error -> Call to a member function attach() on boolean. If anyone knows the answer, please help. Thank you for your time!
VideoController.php -> look at the method store();
<?php
namespace App\Http\Controllers;
use Request;
use App\Http\Requests\CreateVideoRequest;
use App\Video;
use App\Category;
use Auth;
use Session;
class VideoController extends Controller
{
public function __construct(){
$this->middleware('auth', ['except' => 'index']);
}
public function index(){
$videos = Video::latest()->get();
return view('videos.index')->with('videos', $videos);
}
public function show($id){
$video = Video::find($id);
return view('videos.show')->with('video', $video);
}
public function create(){
$categories = Category::pluck('name', 'id');
return view('videos.create')->with('categories',$categories);
}
public function store(CreateVideoRequest $request){
$video = new Video($request->all());
//dd($request->all());
Auth::user()->videos()->save($video);
$categoryIds = $request->input('CategoryList');
$video->categories()->attach($categoryIds);
Session::flash('video_created', 'Added');
return redirect('video');
}
public function edit($id){
$video = Video::findOrFail($id);
return view('videos.edit')->with('video', $video);
}
public function update($id, CreateVideoRequest $request){
$video = Video::findOrFail($id);
$video->update($request->all());
return redirect('video');
}
}
Video.php - model
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Video extends Model
{
protected $fillable = [
'title',
'url',
'description'
];
public function user(){
return $this->belongsTo('App\User');
}
public function categories(){
return $this->belongsToMany('App\Video')->withTimestamps;
}
}
Category.php - model
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Category extends Model
{
protected $fillable = [ 'name' ];
public function videos(){
return $this->belongsToMany('App/Video')->withTimestamps;
}
}
User.php - model (maybe you need a User.php model solves problems)
<?php
namespace App;
use Illuminate\Notifications\Notifiable;
use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Foundation\Auth\User as Authenticatable;
class User extends Authenticatable
{
use Notifiable;
/**
* The attributes that are mass assignable.
*
* #var array
*/
protected $fillable = [
'name', 'email', 'password',
];
/**
* The attributes that should be hidden for arrays.
*
* #var array
*/
protected $hidden = [
'password', 'remember_token',
];
/**
* The attributes that should be cast to native types.
*
* #var array
*/
protected $casts = [
'email_verified_at' => 'datetime',
];
public function videos(){
return $this->hasMany('App\Video');
}
}
Migration - create_category_video_table.php
<?php
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateCategoryVideoTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('category_video', function (Blueprint $table) {
$table->bigIncrements('id');
$table->unsignedBigInteger('category_id');
$table->foreign('category_id')->references('id')->on('categories')->onDelete('cascade');
$table->unsignedBigInteger('video_id');
$table->foreign('video_id')->references('id')->on('videos')->onDelete('cascade');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('category_video');
}
}
Migration - create_categories_table.php
<?php
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateCategoriesTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('categories', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('name');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('categories');
}
}
Migration - create_videos_table.php
<?php
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateVideosTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('videos', function (Blueprint $table) {
$table->bigIncrements('id');
$table->unsignedBigInteger('user_id');
$table->string('title');
$table->string('url');
$table->text('description');
$table->timestamps();
$table->foreign('user_id')->references('id')->on('users');
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('videos');
}
}
form.blade.php - simple form in Laravel Collection
{!! Form::select('CategoryList', $categories, null, ['multiple' => 'multiple']) !!}

Answer 1

For the timestamps for the pivot you would call the "method" withTimestamps() not a "property" named withTimestamps:
// Video
public function categories()
{
return $this->belongsToMany(Category::class)->withTimestamps();
}
// Category
public function videos()
{
return $this->belongsToMany(Video::class)->withTimestamps();
}