Laravel using Sum and Groupby

Question

I would like to fetch sum of quantity in each month, so that I can display on bar chart quantities against month

This is what I thought but didn't workout

 $data1 = Borrow::groupBy(function($d) {
 return Carbon::parse($d->created_at)->format('m')->sum('quantity');
 })->get();

My table structure

Schema::create('borrows', function (Blueprint $table) {
        $table->increments('id');
        $table->integer('member_id');
        $table->integer('book_id');
        $table->integer('quantity');
        $table->integer('status')->default(0);
        $table->timestamps();
    });

your `quantity` field is type of string and you want to sum , it must be integer type? — Saurabh Mistry, Aug 27 '18 at 14:25

Erubiel · Accepted Answer · 2018-09-10T05:31:14.363

5

that a collection group by not an eloquent groupby

if you want to do it with eloquent, gotta:

 $data1 = Borrow::selectRaw('SUM(quantity) as qt, MONTH(created_at) as borrowMonth')
      ->groupBy('borrowMonth')->get();

if you want to do it with the collection groupBy method, you should first do the get, then the groupBy.

As in, though im not sure what you're trying to accomplish with what you do inside the callback..

 $data1 = Borrow::get()->groupBy(function($d) {
 return Carbon::parse($d->created_at)->format('m')->sum('quantity');
 });

edited Sep 10 '18 at 05:31

answered Aug 27 '18 at 14:22

Erubiel

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Can you help on how can write my query – Theodory Faustine Aug 27 '18 at 14:26
try that one, i think it should work for what you need – Erubiel Aug 27 '18 at 14:28

score 0 · Answer 2 · answered Aug 27 '18 at 14:33

try this query , you will get month wise count :

use DB;


 $month_wise_count=DB::table("borrows")
        ->select(DB::raw('CONCAT(MONTHNAME(created_at), "-",  YEAR(created_at)) AS month_year'),
                DB::raw("MONTH(created_at) as month , YEAR(created_at) as year"),
                DB::raw("(COUNT(*)) as total_records"),
                DB::row("(SUM('quantity') as total_value"))
        ->orderBy(DB::raw("MONTH(created_at),YEAR(created_at)"))
        ->groupBy(DB::raw("MONTH(created_at),YEAR(created_at)"))
        ->get();

Laravel using Sum and Groupby

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