laravel raw join query - php

Question

I have a function that accepts raw where conditions and joins:
query('data',['fieldA','fieldB'], 'fieldA > 10 AND fieldB < 20', 'LEFT JOIN users ON data.user_id = users.id');
function query($table, $keys = [], $where = '', $joins = '') {
$query = DB::table($table)->select($keys);
if(!empty($where)) {
$query=$query->whereRaw($where);
}
if(!empty($joins)) {
$query=$query->?????????????
}
return $query->get();
}
How do I use the raw join with the query builder the way I can use whereRaw for the where condition?

Answer 1

Haven't good smell but works
\DB::table('data')->join('user', function($join){
$join->on(\DB::raw('( `data`.`user_id` = `user.id` or (`data`.`user_id` is null and `data`.`other_field` is null)) and 1 '),'=',\DB::raw('1'));
})

Answer 2

Don't bother with the query builder if you're just using raw expressions on everything.
Option 1: Utilize PDO
PDO is the underlying driver used by Laravel. To get the PDO object, run:
$pdo = DB::connection()->getPdo();
Option 2: Run raw queries
You can run entire selects through Laravel without "building" a query:
DB::select("SELECT * FROM table WHERE ..");
This even allows parameter binding when you need it.
https://laravel.com/docs/5.5/database

Answer 3

Here I have put some idea how can you make your method little bit generic. Do same thing for where clause and other part of the query.
query('data',['fieldA','fieldB'], 'fieldA > 10 AND fieldB < 20', 'LEFT', 'users', 'data.user_id','users.id');
function query($table, $keys = [], $where = '', $join_type = 'LEFT', $join_table='', $join_field1='', $join_field2='') {
$query = DB::table($table)->select($keys);
if(!empty($where)) {
$query=$query->whereRaw($where);
}
if(!empty($joins)&&!empty($join_type)&&$join_type=='LEFT') {
$query=$query->leftJoin($join_table, $join_field1, '=', $join_field2)
}
if(!empty($joins)&&!empty($join_type)&&$join_type=='INNER') {
$query=$query->join($join_table, $join_field1, '=', $join_field2)
}
///and so on
return $query->get();
}
//But you can make this method more generic, I just put some idea so that you can make this method more flexible
//I did not take a look at your other part of the method though.
Note: I did not put multiple joins only two table joins but you can make your method more generic form and more flexible. I just tried to put some idea that comes into my mind. If I am wrong then correct me please.
Reference:
Laravel - Joins

Answer 4

DB::table('data')->join('users','data.user_id','users.id')->where(~~~)