Question

模型

public function getDepartmentIdForName($id)
{

    $this->db->select("deptName,deptInfo");
    $this->db->from('departmentinfo');
    $this->db->where('id',$id);
        $query = $this->db->get();

        if($query->num_rows() > 0)
        {
            return $query->result();
        } 

}

控制器

public function getDepartmentId($id)
{
    $this->load->model('Department_Model/Department_Model');

    $data['r'] = $this->Department_Model->getDepartmentIdForName($id,true);

    $data['r1'] = $this->Department_Model->getDepartmentImage($id,true);

     //redirect('admin/department' ,$data);
     $this->load->view('department' ,$data);

}

查看部门

<div class="col-sm-9">

        <?php $this->load->model('Department_Model/Department_Model');?>
        <?php foreach($r->result() as $deName):?>
            <h4>
                    <?php echo $deName->deptName?>
            </h4>


          <p> <?php echo $deName->deptInfo?></p>
          <!-- Small Facts -->

        <?php endforeach ;?>

  </div><!---col-sm-9-->

显示以下错误

未定义的变量：r   严重性：错误

消息：在非对象上调用成员函数result（）

文件名：views / department.php

行号：35

Answer 1

在模型中更改此

if($query->num_rows() > 0)
{
    return $query->result_array();//here
}

在视图中

<?php foreach($r as $deName):?>

Answer 2

编辑你的控制器：

public function getDepartmentId($id)
{
    $this->load->model('Department_Model');

    $data['r'] = $this->Department_Model->getDepartmentIdForName($id);

    $data['r1'] = $this->Department_Model->getDepartmentImage($id);

     //redirect('admin/department' ,$data);
     $this->load->view('department' ,$data);

}

您无需在视图中再次加载模型。

    <?php foreach($r->result() as $deName):?>
        <h4>
                <?php echo $deName->deptName?>
        </h4>


      <p> <?php echo $deName->deptInfo?></p>
      <!-- Small Facts -->

    <?php endforeach ;?>

因为getDepartmentImage只有1个参数。

Answer 3

在模型中，您将返回$query->result()，在视图中，您还会循环显示$r->result()，但$r是您从模型中返回的内容。所以你应该只在其中一个地方使用result()方法。只需从模型或视图中删除->result()即可。

未定义的变量：r在非对象上调用成员函数result（）

3 个答案: