更新

server/app/common/model/doctor/Appointment.php

@@ -95,4 +95,8 @@ class Appointment extends BaseModel
         return $this->hasOne('app\adminapi\logic\auth\AdminLogic', 'id', 'doctor_id')
             ->bind(['doctor_name' => 'name']);
     }
+    public function diagnosis(){
+
+         return $this->belongsTo('app\common\model\tcm\Diagnosis', 'patient_id', 'id');
+    }
 }

server/app/common/model/tcm/Diagnosis.php

@@ -77,4 +77,19 @@ class Diagnosis extends BaseModel
     {
         return !empty($data['past_history']) ? explode(',', $data['past_history']) : [];
     }
+
+    /**
+     * @notes BMI 计算（身高cm，体重kg）
+     * @param $value
+     * @param $data
+     * @return float|null
+     */
+    public function getBmiAttr($value, $data)
+    {
+        if (!empty($data['height']) && !empty($data['weight'])) {
+            $heightM = $data['height'] / 100;
+            return round($data['weight'] / ($heightM * $heightM), 2);
+        }
+        return null;
+    }
 }