How to get Complex relation in a Laravel using eloquent - php

Question

I have below tables
Users
id
name
Companies
id
user_id
name
Product Categories
id
company_id
name
Products
id
product_category_id
name
Sales
id
product_id
price
quantity
total
Now i want to get all sales for specified user's products. I have tried with below query. But i cannot use where for this. It is not apply this filter. Also i want to filter it by few other fields like users.user_name, products.product_name ... etc
$sales = Sale::with(['product'=>function($q) use ($user_id) {
$q->with(['product_category' => function($q) use ($user_id) {
$q->with(['company'=> function($q) use ($user_id) {
$sUserName = Input::get('sUserName');
$q->with(['user'=> function($q) use ($sUserName,$user_id) {
$q->where('id', $user_id);
}]);
}]);
}]);
}]);
Is it possible to use Eloquent for these situations ? Or should i use join queries ? Please advice me. thanks

Answer 1

you can use laravel eloqunt like this.
$Sales = DB::table('Sales')
->join('Products', 'Sales.product_id', '=', 'Products.id')
->join('ProductCategories', 'ProductCategories.id', '=', 'Products.product_category_id')
->join('companies', 'ProductCategories.company_id', '=', 'companies.id')
->join('Users', 'companies.user_id', '=', 'Users.id')
->select('Sales.*')
->get();

Answer 2

After madalinivascu advise i could be able to resolve my problem as below. Now i can filter it by Ordered User, Product name & dates.
$sUserName = Input::get('sUserName');
$sProductName = Input::get('sProductName');
$sFrom = Input::get('sFrom');
$sTo = Input::get('sTo');
$user_id = \Auth::User()->id;
// Show sales only for his products
$sales = Sale::with('sold_to_user')
->whereHas('sold_to_user', function($q) use ($sUserName) {
if(!empty($sUserName)) $q->where('name','LIKE', "$sUserName%");
})->with('product')
->whereHas('product', function($q) use ($sProductName) {
if(!empty($sProductName)) $q->where('name','LIKE', "$sProductName%");
});
if(\Auth::User()->privilege!='administrator') $sales = $sales->where('user_id','=',$user_id);
$sales = $sales->orderBy('updated_at','desc')->paginate(100);