how to fetch products in laravel using regexp - php

Question

I am facing problem. I want to find the products that belongs to current product (category_ids). I am in product detail page. Here is my structure of table:-
Now see currently i open the 2 product in browser and having category_ids(4,2) now i want to fetch all the products having the category_id 4 or 2 in my case i want to fetch the 3rd product but its is not working.. see 3rd product having category_id (1,2,6) so i want to fetch that record ... So if open 3rd product in browser i want o fetch the 2 product.. hope you guys undertstand here is my code:-
$recomendedProducts = Product::with('product_image')
->whereRaw("category_ids REGEXP '".$productDetail['category_ids']. "'")
->where('id','!=',$productDetail['id'])
->inRandomorder()
->take(5)
->get();
This above query shows me empty result. Please help me how to resolve. I am using laravel 5.2

Answer 1

Well, if that is what you want, according to your comment, you can do it like this.
First, you need to create a proper relationship between your productucs and your categories.
On your product model:
public function category()
{
return $this->belongsToMany('App\Category');
}
On your category model:
public function product()
{
return $this->belongsToMany('App\Product');
}
Next, you need to creat a proper pivot table to connect those two models. So create a migration for that.
php artisan make:migration create_category_product_table
<?php
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateCategoryProductTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('category_product', function (Blueprint $table) {
$table->increments('id');
$table->unsignedInteger('category_id');
$table->foreign('category_id')->references('id')->on('categories')->onDelete('cascade');
$table->unsignedInteger('product_id');
$table->foreign('product_id')->references('id')->on('products')->onDelete('cascade');
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('category_product');
}
}
Now you can make a little function and access it and send it to your views via controller:
public function getRelatedProducts($product){
$related_category_ids = $product->category()->pluck('categories.id');
return $relatedProducts = Product::whereHas('category', function ($q) use($related_category_ids) {
$q->whereIn('category_id', $related_category_ids);
})
->where('id', '<>', $product->id)
->take(4)
->inRandomOrder()
->get();
}