Wie kann ich eine mysql Select Unterabfrage dies auf Laravel 5 Abfrage-Generator

Question

Ich habe diese Abfrage unten mit einer Unterabfrage. Wie erzeuge ich es in Laravel 5 Abfrage-Generator? Die Sache, die mich stört, ist die Unterabfrage, die die Spalte von der ersten Abfrage teilt.

SELECT 
    DATE(review_headers.`created_at`) AS `date`, 
    COUNT(review_headers.id) AS reviews, 
    (
      SELECT 
     (ROUND((SUM(IF(rd2.`param_value` >=9, 1,0))/COUNT(rh2.id))*100,2)) - (ROUND((SUM(IF(rd2.`param_value` <7, 1,0))/COUNT(rh2.id))*100,2)) 
      FROM review_headers rh2 
      INNER JOIN review_details rd2 ON rd2.review_header_id = rh2.id 
      WHERE DATE(rh2.created_at) <= DATE(review_headers.`created_at`) 
     ) AS cumulativeNPS 
FROM review_headers 
INNER JOIN review_details ON review_details.review_header_id = review_headers.id 
GROUP BY DATE(review_headers.`created_at`) 
ORDER BY DATE(review_headers.`created_at`) 

Die Tabellen:

review_headers

id subject       created_at 
------ ----------------------- --------------------- 
20 review 8     2016-03-31 15:50:57 
21 review 9     2016-03-30 15:50:57 
22 review 10     2016-01-14 15:50:57 
23 review 16     2016-04-25 08:19:03 
24 review 17     2016-04-25 08:19:03 
25 review 18     2016-04-19 08:19:03 
26 review 19     2016-04-18 08:19:03 
27 review 20     2016-04-17 08:19:03 
28 review 21     2016-04-07 08:19:03 
29 review 22     2016-03-27 08:19:03 
30 review 23     2016-03-25 08:19:03 
31 review 24     2016-04-25 08:19:03 
32 review 25     2016-04-25 08:19:03 
33 review 26     2016-04-19 08:19:03 
34 review 27     2016-04-18 08:19:03 
35 review 28     2016-04-17 08:19:03 
36 review 29     2016-03-27 08:19:03 
37 review 30     2016-03-25 08:19:03 

review_details

id review_header_id param_value 
------ ---------------- ------------- 
97    21 7    
103    22 4    
109    23 8    
115    24 5    
121    25 6    
127    26 8    
133    27 9    
139    28 9    
145    29 5    
151    30 9    
157    31 3    
163    32 8    
169    33 10   
175    34 4    
181    35 7    
187    36 4    
193    37 7   

Answer 1

Hier haben Sie auf Ihre Anfrage vollständigen Code basiert:

$subQuery = \DB::table('review_headers as rh2') 
    ->select(\DB::raw('ROUND((SUM(IF(rd2.`param_value` >=9, 1,0))/COUNT(rh2.id))*100,2)) - (ROUND((SUM(IF(rd2.`param_value` <7, 1,0))/COUNT(rh2.id))*100,2)')) 
    ->join('review_details as rd2'. 'rd2.review_header_id', '=', 'rh2.id') 
    ->whereRaw('DATE(rh2.created_at) <= DATE(review_headers.`created_at`)'); 
$query = \DB::table('review_headers') 
    ->select(
     \DB::raw('DATE(review_headers.created_at) AS date'), 
     \DB::raw('COUNT(review_headers.id) AS reviews'), 
     \DB::raw('(' . $subQuery->toSql() . ') as cumulativeNPS') 
    ) 
    ->join('review_details', 'review_details.review_header_id', '=', 'review_headers.id') 
    ->groupBy('review_headers.created_at') 
    ->orderByRaw('DATE(review_headers.created_at)') 
    ->mergeBindings($subQuery); 

Answer 2

Ich habe das versucht und es scheint zu funktionieren.

$data = ReviewHeader::select(
    DB::raw('DATE(review_headers.`created_at`) AS dateTime'), 
    DB::raw('(SELECT 
       (ROUND((SUM(IF(rd2.`param_value` >=9, 1,0))/COUNT(rh2.id))*100,2)) - (ROUND((SUM(IF(rd2.`param_value` <7, 1,0))/COUNT(rh2.id))*100,2)) 
        FROM review_headers rh2 
        INNER JOIN review_details rd2 ON rd2.review_header_id = rh2.id 
        WHERE DATE(rh2.created_at) <= DATE(review_headers.`created_at`) 
       ) AS cumulativeNPS'), 
    DB::raw('COUNT(review_headers.id) AS review') 
) 
->join('review_details', 'review_details.review_header_id', '=', 'review_headers.id') 
->groupBy(DB::raw('DATE(review_headers.`created_at`)')) 
->orderBy('review_headers.created_at')