从数据库 codeigniter 获取选项值

Question

我有一个 php 表单，我想从数据库中的电子邮件地址表中保存的值列表中为字段电子邮件选择选项。表 emailaddress 有 2 个字段 1. idemailaddress 和 2. emailaddress，但我在尝试提取数据时仍然出错，请帮助

Agreement_ctrl

$data['department_list'] = $this->Main_model->get_department_list();
    $data['unit_list'] = $this->Main_model->get_unit_list();
    $data['terms'] = $this->Main_model->get_terms_list();
    $data['emailaddress_list'] = $this->Main_model->get_emailaddress_list();
    $data['managers_list'] = $this->Main_model->get_managers_list();
    $data['mtnlocation_list'] = $this->Main_model->get_mtnlocation_list();
    $data['institution_list'] = $this->Main_model->get_institution_list();
    $this->form_validation->set_rules('name', 'Name', 'required');
    $this->form_validation->set_rules('gender', 'Gender', 'alpha|xss_clean');
    $this->form_validation->set_rules('department', 'Department');
    $this->form_validation->set_rules('unit', 'Unit', 'numeric|xss_clean');

主模型文件

}

function get_emailaddress_list()
{
    $this->db->order_by('emailaddress', 'ASC');
    $query = $this->db->get('emailaddress');
    if ($query->num_rows() > 0)
    {
        foreach ($query->result() as $row)
        {
            $result [$row->id] =  $row;
        }
        return $result;
    }else{
        return FALSE;
    }

}

表单页面

                      <div class="form-group row">
             <label  class="col-sm-3 col-form-label" for="Email">Email Address:</label>
                                        <div class="col-sm-9">
                                            <select name="Email" class="Email form-control" id="Email">
                                                <option value="" <?php echo  set_select('Email', ''); ?> >-Select-</option>
                                                <?php if($emailaddress_list){ 
                                                    foreach($emailadress_list as $emailaddress){ ?>
                                                <option value="<?php echo $emailadress->idemailaddress?>" <?php echo set_select('Email', $emailaddress->idemailaddress); ?>><?php echo $emailaddress->emailaddress?></option>
                                                <?php }
                                                    }?>
                                            </select>
                                        </div>
                                    </div>

Answer 1

您的模型中不需要 foreach 循环，只需返回查询结果即可。

function get_emailaddress_list(){
  $this->db->order_by('emailaddress', 'ASC');
  $query = $this->db->get('emailaddress');
  $data = ($query->num_rows())? $query->result():false;
  return $data;
}

然后您在视图中遍历此结果以创建选择选项：

<select name="Email" class="Email form-control" id="Email">

  <?php if($emailaddress_list):?> 
      <option value="" disabled selected>-Select-</option>
    <?php foreach($emailadress_list as $row): ?>                                                    
      <option value="<?=$row->idemailaddress?>">
        <?=$row->emailaddress?>
      </option>
  <?php endforeach;?>
  <?php else:?>
     no records found
  <?php endif;?>                                 
</select>