有名なヒートマップのようなやつを搭載した

app/Http/Controllers/UserController.php

@@ -47,7 +47,23 @@ SQL
             abort(404);
         }
 
-        return view('user.stats')->with(compact('user'));
+        $groupByDay = Ejaculation::select(DB::raw(<<<'SQL'
+to_char(ejaculated_date, 'YYYY/MM/DD') AS "date",
+count(*) AS "count"
+SQL
+        ))
+            ->where('user_id', $user->id)
+            ->where('ejaculated_date', '>=', Carbon::now()->addMonths(-9)->firstOfMonth())
+            ->groupBy(DB::raw("to_char(ejaculated_date, 'YYYY/MM/DD')"))
+            ->orderBy(DB::raw("to_char(ejaculated_date, 'YYYY/MM/DD')"))
+            ->get();
+        $calendarData = [];
+        foreach ($groupByDay as $data) {
+            $timestamp = Carbon::createFromFormat('Y/m/d', $data->date)->getTimestamp();
+            $calendarData[$timestamp] = $data->count;
+        }
+
+        return view('user.stats')->with(compact('user', 'calendarData'));
     }
 
     public function okazu($name)

resources/views/user/stats.blade.php

@@ -1,10 +1,35 @@
 @extends('user.base')
 
+@push('head')
+<link rel="stylesheet" href="//cdn.jsdelivr.net/cal-heatmap/3.3.10/cal-heatmap.css" />
+@endpush
+
 @section('tab-content')
 @if ($user->is_protected && !$user->isMe())
     <p class="mt-4">
         <span class="oi oi-lock-locked"></span> このユーザはチェックイン履歴を公開していません。
     </p>
 @else
+    <h5 class="my-4">Shikontribution graph</h5>
+    <div id="cal-heatmap"></div>
+    <hr class="my-4">
 @endif
 @endsection
+
+@push('script')
+<script type="text/javascript" src="//d3js.org/d3.v3.min.js"></script>
+<script type="text/javascript" src="//cdn.jsdelivr.net/cal-heatmap/3.3.10/cal-heatmap.min.js"></script>
+<script>
+    var cal = new CalHeatMap();
+    cal.init({
+        itemSelector: '#cal-heatmap',
+        domain: 'month',
+        subDomain: 'day',
+        domainLabelFormat: '%Y/%m',
+        start: new Date({{ \Carbon\Carbon::now()->addMonths(-9)->timestamp * 1000 }}),
+        range: 10,
+        data: @json($calendarData),
+        legend: [1, 2, 3, 4]
+    });
+</script>
+@endpush