Inserting Data in Pivot Table - laravel

Question

The two tables tbl_product_manager and tbl_tags with many to many relations. I used eloquent to to make a relations between the corresponding models. I am able to to insert the data in these two table but the problem is the pivot table is not updated correspondingly.
Controller.php:
public function addProduct()
{
$rules = array('product_name' => 'required',
'product_url' => 'required');
$validator = Validator::make(Input::all(), $rules);
if($validator->fails()){
Session::flash('class', 'alert alert-error');
Session::flash('message', 'Some fields are missing');
return View::make('admin.product.add');
}
else {
$productName = Input::get('product_name');
$productUrl = Input::get('product_url');
$productUrl = preg_replace('/[^A-Za-z0-9\-]/', '', $productUrl);
$productExist = ProductManagementModel::checkExist($productUrl);
if( count($productExist)!=0) {
$message = 'product <b>'.$productName.'</b> with url <b>'.$productUrl.'</b> is already exist';
Session::flash('class', 'alert alert-error');
Session::flash('message', $message);
return View::make('admin.product.add');
}
else {
$imageFile = Input::file('userfile');
$destinationPath = 'uploads/products/';
$rEFileTypes = "/^\.(jpg|jpeg|gif|png){1}$/i";
$maximum_filesize = 1 * 1024 * 1024;
if($imageFile) {
$filename = $imageFile->getClientOriginalName();
$extension = strrchr($filename, '.');
$size = $imageFile->getSize();
$new_image_name = "products" . "_" . time();
if ($size <= $maximum_filesize && preg_match($rEFileTypes, $extension)) {
$attachment = $imageFile->move($destinationPath, $new_image_name.$extension);
} else if (preg_match($rEFileTypes, $extension) == false) {
Session::flash('class', 'alert alert-error');
Session::flash('message', 'Warning : Invalid Image File!');
return View::make('admin.product_management.add');
} else if ($size > $maximum_filesize) {
Session::flash('class', 'alert alert-error');
Session::flash('message', "Warning : The size of the image shouldn't be more than 1MB!");
return View::make('admin.product_management.add');
}
}
$logo = isset($attachment) ? $new_image_name . $extension : NULL;
$objectProduct = new ProductManagementModel;
$objectProduct->product_name = Input::get('product_name');
$objectProduct->product_url = $productUrl;
$objectProduct->category_id = Input::get('category_id');
$objectProduct->product_cost = Input::get('product_cost');
$objectProduct->product_short_description = Input::get('product_short_description');
$objectProduct->product_description = Input::get('product_description');
$objectProduct->is_active = Input::get('is_active');
$objectProduct->created_at = Auth::user()->id;
$objectProduct->updated_at = Auth::user()->id;
if($logo != '')
{
$objectProduct->product_attachment = $logo;
}
$objectTags = new TagModel;
$objectTags->size_id = Input::get('size_id');
$objectTags->brand_id = Input::get('brand_id');
$objectTags->color_id = Input::get('color_id');
$objectTags->food_id = Input::get('food_id');
$objectTags->save();
//$tag = new TagModel::all();
$objectProduct->save();
if(isset($request->tags)) {
$post->Tags()->sync($request->tags, false);
}
if($objectProduct->id) {
Session::flash('class', 'alert alert-success');
Session::flash('message', 'Product successfully added');
return View::make('admin.product_management.add');
} else {
Session::flash('class', 'alert alert-error');
Session::flash('message', 'Something error');
return View::make('admin.product_management.add');
}
}
}
}
ProductManagementModel.php
<?php
use Illuminate\Auth\UserTrait;
use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableTrait;
use Illuminate\Auth\Reminders\RemindableInterface;
class ProductManagementModel extends Eloquent implements UserInterface, RemindableInterface {
use UserTrait, RemindableTrait;
protected $table = 'product_manager';
public function Tags(){
return $this->belongsToMany('TagModel', 'product_tag', 'product_id', 'tag_id');
}
public function Categories(){
return $this->hasOne('CategoriesModel', 'id');
}
public static function getAllProducts(){
return $products = ProductManagementModel::with('categories','tags')->get();
}
public static function checkExist($url)
{
return $products = DB::table('product_manager')
->where('is_deleted', 0)
->where('product_url', $url)
->first();
}
}
TagModel.php
<?php
use Illuminate\Auth\UserTrait;
use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableTrait;
use Illuminate\Auth\Reminders\RemindableInterface;
class TagModel extends Eloquent implements UserInterface, RemindableInterface {
use UserTrait, RemindableTrait;
protected $table = 'tag';
public function ProductManagents() {
return $this->belongsToMany('ProductManagentModel');
}
public function Color(){
return $this->hasOne('ColorModel', 'color_id');
}
public function Brand() {
return $this->hasOne('BrandproModel','brand_id');
}
public function size() {
return $this->hasOne('SizeModel','size_id');
}
public function food() {
return $this->hasOne('FoodModel','food_id');
}
}
During my research i found that using sync function will be appropriate to updated the pivot table. But I failed to use it.
I am expecting to resolve this problem or something new way to find out the solution.
Thanks in advance.

Answer 1

Look at attach, detach or synch method :
https://laravel.com/docs/5.5/eloquent-relationships#updating-many-to-many-relationships
Note it's more easily if you respect the eloquent naming convention
http://www.rappasoft.com/articles/laravel-eloquent-naming-convention-guide/