John Davidson

php - Difficulty properly joining tables in Laravel query

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Message:


I'm having difficulty properly joining tables in L9. This joins my products and additionalProducts tables. The mission is to get all the products that can be added with productId(x). I have the Product table with all the info and additonalProduct that look like this:

































id product_id additionalProductId
1 1 2
2 1 4
3 2 3
4 2 5


My Answer:
To properly join the Product and additionalProducts tables in Laravel, you can use the following query:

php
$productId = x; // Replace x with the desired productId

$products = DB::table('products')
->join('additionalProducts', 'products.id', '=', 'additionalProducts.product_id')
->where('additionalProducts.additionalProductId', $productId)
->select('products.*')
->get();


This query will join the two tables on the `id` column of the `products` table and the `product_id` column of the `additionalProducts` table. It will then filter the results based on the `additionalProductId` column matching the desired productId.

Make sure to replace `x` with the actual productId you want to filter by.

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