Merge branch 'dev' of http://git.ycjcjy.com/SpaceOfCheng/services into dev

models/luckdraw/luckdraw.go

 	ta_luckdraw_record a
 	LEFT JOIN ta_customer_course_qrcode b ON a.id = b.customer_course_id
 	where a.id = '` + id + `'`
-	err := m.db.Sql(sql).Find(record)
-	return &record[0], err
+	err := m.db.Sql(sql).Find(&record)
+	if len(record) > 0 {
+		return &record[0], err
+	}
+	return nil, err
+
 }
 
 // SaveLuckDrawShareData 保存用户分享信息