update

app/Models/CourseSign.php

@@ -142,5 +142,27 @@ class CourseSign extends SoftDeletesModel
             return $user->count();
         }
     }
+
+    /**
+     * 指定时间内的被投企业
+     */
+    public static function yhInvested($start_date, $end_date, $status = null, $course_ids = null)
+    {
+        $courseSignByType = CourseSign::whereDate('created_at', '>=', $start_date)
+            ->whereDate('created_at', '<=', $end_date)
+            ->where(function ($query) use ($status, $course_ids) {
+                if (isset($status)) {
+                    $query->where('status', $status);
+                }
+                if (isset($course_ids)) {
+                    $query->whereIn('course_id', $course_ids);
+                }
+            })->whereNotIn('status', [4, 5])
+            ->get();
+        return Company::whereHas('users', function ($query) use ($courseSignByType) {
+            $query->whereIn('id', $courseSignByType->pluck('user_id'));
+        })->where('is_yh_invested', 1)->count();
+    }
+
 }