update message summary

app/Models/Prescription.php

@@ -15,4 +15,9 @@ class Prescription extends Model
         'organization_id',
         'icd_code'
     ];
+
+    public function items()
+    {
+        return $this->hasMany(PrescriptionItem::class, 'prescription_id');
+    }
 }

app/Models/PrescriptionItem.php

@@ -17,4 +17,8 @@ class PrescriptionItem extends Model
         'signa',
         'direction'
     ];
+
+    public function drug(){
+        return $this->hasOne(Drug::class, 'id');
+    }
 }