How to convert given SQL query to Eloquent laravel? - php

Question

I am bit struggling to convert below given SQL query to eloquent.
Here is an example of what I am trying to do -
SELECT u.wallet_address AS wallet_address, p.id AS project_id
FROM users u, projects p, investment_investor i
WHERE u.id = i.user_id AND
p.id=i.project_id AND
u.wallet_address <> '' AND
p.wallet_address <> '' AND
p.contract_address <> ''
GROUP BY u.id, p.id;
The below SQL query gives me the expected output, which I am able to build with the Laravel DB query builder. But want to standardise it to Laravel framework.
Your help is much appreciated!

Answer 1

First thing you need to have to be able to write queries in the laravel way is something called Model. Example of a model would be like so
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Flight extends Model
{
//
}
You can read more about it here
Once you create it, you can start writing queries. For example
$results = Users::selectRaw('users.wallet_address as `wallet_address`,'.
'id as `project_id`')
->get();
You can read more about joins and other things here

Answer 2

$result=DB::table('investment_investor')
->select('users.wallet_address as wallet_address','projects.id AS project_id')
->join('users','users.id','=','investment_investor.user_id')
->join('projects','projects.id','=','investment_investor.project_id')
->where('users.wallet_address','!=','')
->where('projects.wallet_address','!=','')
->where('projects.contract_address','!=,'')
->groupBy('users.id', 'projects.id')
->get();