大家好,所以当我想访问管理仪表板时会发生
遇到未捕获的异常 类型:错误
消息:在布尔值上调用成员函数result()
文件名:/var/www/html/application/models/backend/dashboard/Dashboard_model.php
行号:128
回溯:
文件:/var/www/html/application/controllers/backend/dashboard/Home.php 行:27
功能:每月投资
文件:/var/www/html/index.php 线:315 功能:require_once
line128
return $query = $this->db->query("SELECT MONTHNAME(\
invest_date`)作为月份,SUM(`amount`)作为投资来自`investment` GROUP BY YEAR(`invest_date`),MONTH(`invest_date`)“)-> result();`
第27行
$ data ['monthlyInvestment'] = $ this-> dashboard_model-> monthlyInvestment();
line315
require_once BASEPATH.'core / CodeIgniter.php';