laravel access outer query column inside subquery - php

Question

I am trying to convert raw sql queries into laravel queries.
Here's the raw query:
select
tsk.id,
tsk.request_id,
tsk.sys_index,
tsk.category_group,
tsk.category,
tsk.is_assigned,
tsk.hash_id
from
user_tasks as usr
inner join
unassigned_tasks as tsk
on usr.task_id = tsk.id
where
usr.assigned_to = 12
AND
tsk.product_id NOT IN ( SELECT product_id FROM product_progresses WHERE request_id = tsk.request_id )
AND
BINARY hash_id NOT IN ( SELECT hash_id FROM product_match_unmatches WHERE request_id = tsk.request_id AND auto_unmatched_by IS NOT NULL )
The laravel query is:
public function getTasks($assigned_to) {
/** fetch products assigned to a specific user token,
* ignore already matched skus, and links that are auto-unmatched
**/
$tasks = DB::table('user_tasks as usr')
->join('unassigned_tasks as tsk', 'usr.task_id', '=', 'tsk.id')
->select('tsk.id', 'tsk.request_id', 'tsk.sys_index', 'tsk.category_group', 'tsk.category', 'tsk.is_assigned', 'tsk.hash_id')
->where('usr.assigned_to', '=', $assigned_to);
$tasks->whereNotIn('tsk.product_id', function($qs) {
$qs->from('product_progresses')
->select(['product_id'])
->where('request_id', '=', 'tsk.request_id')
->get();
});
$tasks->whereNotIn(DB::raw('BINARY `hash_id`'), function($qs) {
$qs->from('product_match_unmatches')
->select('hash_id')
->where('request_id', '=', 'tsk.request_id')
->whereNotNull('auto_unmatched_by')
->get();
});
return $tasks->toSql();
The below query should take tsk.request_id value from outer query, but I think the column value is not passed to it.
Here's the output of toSql():
SELECT `tsk`.`id`,
`tsk`.`request_id`,
`tsk`.`sys_index`,
`tsk`.`category_group`,
`tsk`.`category`,
`tsk`.`is_assigned`,
`tsk`.`hash_id`
FROM `user_tasks` AS `usr`
INNER JOIN `unassigned_tasks` AS `tsk`
ON `usr`.`task_id` = `tsk`.`id`
WHERE `usr`.`assigned_to` = ?
AND `tsk`.`product_id` NOT IN (SELECT `product_id`
FROM `product_progresses`
WHERE `request_id` = ?)
AND BINARY `hash_id` NOT IN (SELECT `hash_id`
FROM `product_match_unmatches`
WHERE `request_id` = ?
AND `auto_unmatched_by` IS NOT NULL)
Note the ? inside where clauses.
The resultset is different from the raw and laravel query.
I even tried see the bindings value:
//dd($tasks->getBindings());
$sql = str_replace_array('?', $tasks->getBindings(), $tasks->toSql());
dd($sql);
And on running this raw query, it is outputting the correct result-set.
UPDATE:
On checking the bindings, here's what I found:
array:3 [▼
0 => 12
1 => "tsk.request_id"
2 => "tsk.request_id"
]
Here outer query column is wrapped inside quotes and hence treated as a string.
So maybe where clause is trying to compare request_id with a string rather than the outer column.
If it is so, then how do I make them treat as columns rather than string?

Answer 1

use DB::raw() where you trying to add value of request_id
Example
AND `tsk`.`product_id` NOT IN (SELECT `product_id`
FROM `product_progresses`
WHERE `request_id` = DB::raw('tsk.request_id'))

Answer 2

whereRaw('pgr.request_id = tsk.request_id');
Solved the string issue.

Answer 3

You should try to remove select() method, in the subquery replace where() method with whereColumn() method and remove get() method:
$tasks = DB::table('user_tasks', 'urs')
->join('unassigned_tasks as tsk', 'usr.task_id', '=', 'tsk.id')
->where('usr.assigned_to', '=', $assigned_to);
Note: i put the alias 'urs' as second argument (view docs)
$tasks->whereNotIn('tsk.product_id', function($qs) {
$qs->from('product_progresses')
->select(['product_id'])
->whereColumn('request_id', 'tsk.request_id');
});
If you want get specific fields, you must specify the fields in get() method:
return $tasks->get(array('tsk.id', 'tsk.request_id', 'tsk.sys_index', 'tsk.category_group', 'tsk.category', 'tsk.is_assigned', 'tsk.hash_id'));