php - Laravel where exists query issue / not working -


alright have table of items duplicate items can exist same 'parent_uuid' can 'published' or 'discarded'. i'm trying 'discarded' group of items, published 0 there not duplicate row same 'parent_uuid' has published marked 1.

when write query in sql, behaves correctly:

select * `items` `items` `published` = 0 , `created_at` < '2015-08-30 17:23:29' , not exists (select 1 `items` `check` `check`.`parent_uuid` = `items`.`parent_uuid` , `published` = 1) group `parent_uuid`

my test cases return expect them be. when write in laravel query builder this:

  $discarded = self::from('items items')     ->where('published', 0)     ->where('created_at', '<', carbon::now()->submonth()->todatetimestring())     ->wherenotexists(function($query) {       $query->select(db::raw(1))         ->from('items check')         ->where('check.parent_uuid', 'items.parent_uuid')         ->where('published', 1);     })     ->groupby('parent_uuid');

i more results i'm supposed to. results items should fail not exists subquery. when output last query, looks fine. , if copy query sql client , swap in variables, works expect to.

array (size=3)   'query' => string 'select * `items` `items` `published` = ? , `created_at` < ? , not exists (select 1 `items` `published` `published`.`parent_uuid` = ? , `published` = ?) group `parent_uuid`' (length=211)   'bindings' =>      array (size=4)       0 => int 0       1 => string '2015-08-30 17:23:29' (length=19)       2 => string 'items.parent_uuid' (length=22)       3 => int 1   'time' => float 442.8

i'm unsure i'm doing wrong , i've tried can think of.

does know might going on here? i'm on laravel 4.2.

the problem seems laravel's query builder , database driver related. temporary issue build of library have.

a solution found these situations create raw database string , pipe in advanced select query. this:

  $where_not_exists = '1 `items` `check` `check`.`parent_uuid` = `items`.`parent_uuid` , `published` = 1';    $discarded = items::from('items items')     ->where('published', 0)     ->where('created_at', '<', carbon::now()->submonth()->todatetimestring())     ->wherenotexists(function($query) use ($where_not_exists) {       $query->select(db::raw($where_not_exists));     })     ->groupby('parent_uuid');    if ($count === true) {     return $discarded->count();   }    return $discarded->get();

it's not terribly unreadable. sure never inject user sent input directly these!


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