How to do this query in laravel with eloquent? - laravel

Question

I have this DB:
[Database model]
This is the query I want to make in Laravel:
SELECT
product_translations.name,
product_translations.description,
products.ean_code
FROM product_translations, products, languages
WHERE product_translations.language_id = languages.id
AND products.id = product_translations.product_id
AND languages.language_code = "en";
Relationships in Laravel:
class Product extends Model
{
public function translations ()
{
return $this->hasMany(ProductTranslation::class, 'product_id');
}
}
class ProductTranslation extends Model
{
public function product()
{
return $this->belongsTo(Product::class, 'product_id');
}
public function language()
{
return $this->belongsTo(Language::class, 'language_id');
}
}
class Language extends Model
{
public function ProductTranslations()
{
return $this->hasMany(ProductTranslation::class, 'language_id');
}
}
is this correct? the raw query works.
thanks

Answer 1

The query syntax you are using is an old style syntax and will produce inner joins for tables. Using laravel you can use builtin methods to query data from your related models.
For your question I believe you need products list but with specific translation
$products = Product::with(['translations' => function($query)
{
$query->join('product_translations as pt', 'products.id', '=', 'pt.cart_id')
->join('languages as l', 'l.id', '=', 'pt.language_id')
->where('l.language_code', '=', 'en')
->first();
}])->get();
Or if you want to go with query builder you can write as
$products = DB::table('products AS p')
->select([
'p.id',
'p.is_organic',
'pt.name',
'pt.description',
'pt.ean_code'
])
->join('product_translations AS pt', 'pt.product_id', '=', 'p.id' )
->join('languages AS l', 'pt.language_id', '=', 'l.id')
->where('l.language_code','en')
->get();
In SQL
SELECT
p.id,
p.is_organic,
pt.name,
pt.description,
pt.ean_code
FROM products p
INNER JOIN product_translations as pt ON pt.product_id = p.id
INNER JOIN languages l ON pt.language_id = l.id
WHERE l.language_code = "en";