Question

我是Code Igniter的新手，我正在尝试从表单更新用户数据。插入，显示和删除数据工作正常，但我无法使更新功能起作用。

数据保存在两个表格中：users和users_info。

我的模特：

function getuser($id) {
  $this->db->join('users_info','users.user_id = users_info.user');

  $query = $this->db->get_where('users', array('user_id'=> $id));

  return $query->result_array();
 }

function edituser($id) {

  $update_user = array(
    'username' => $this->input->post('username'),
    'password' => md5($this->input->post('password')),     
    'email' => $this->input->post('email'),
    'level' => $this->input->post('role')                                       
  );

  $this->db->where('user_id', $id);
  $this->db->join('users_info','users.user_id = users_info.user' );
  $this->db->update('users', $update_user);

  $affected_rows1 = $this->db->affected_rows() ? TRUE : FALSE;

  $update_info = array(
    'name' => $this->input->post('first_name'),
    'surname' => $this->input->post('surname'),
    'address' => $this->input->post('address'),         
    'city' => $this->input->post('city'),
    'phone' => $this->input->post('phone'),
    'mobile' => $this->input->post('mobile'),
    'am' => $this->input->post('am'),           
    'vat' => $this->input->post('vat')                              
  );

  $this->db->where('user', $id);
  $this->db->update('users_info', $update_info); 
  $affected_rows2 = $this->db->affected_rows() ? TRUE : FALSE;

  return ($affected_rows1 && $affected_rows2) ? TRUE : FALSE;

}

我的控制器：

function edituser() {
  if ($this->session->userdata('is_logged_in')) {
    $this->load->helper('form');  
    $this->load->helper('html');   
    $this->load->model('users_model');
    $id=$this->uri->segment(3);
    $this->users_model->edituser($id);  

  if ((int)$id > 0) {

    $query = $this->users_model->getuser($id);   

    $data['fid']['value']         = $id;
    $data['fusername']['value']   = $query['username'];
    $data['fpassword']['value']   = $query['password'];
    $data['femail']['value']      = $query['email'];
    $data['frole']['value']       = $query['role'];
    $data['ffirst_name']['value'] = $query['first_name'];
    $data['fsurname']['value']    = $query['surname'];
    $data['faddress']['value']    = $query['address'];
    $data['fcity']['value']       = $query['city'];
    $data['fphone']['value']      = $query['phone'];
    $data['fmobile']['value']     = $query['mobile'];
    $data['fam']['value']         = $query['am'];
    $data['fvat']['value']        = $query['vat'];
  }

  $data['main_content'] = 'pages/edit_user';
  $this->load->view('templates/template', $data);  

  } else {
    redirect('login/index');
  }
}

我的观点

<div class="form-grid">

  <?php
    $attributes= array('class' => 'leftLabel', 'id' => 'form1');
    echo form_open('users/edituser',  $attributes);
  ?>
  <? echo form_hidden('id',$fid['value']); ?>

  <ul>
    <li>
      <label class="fldTitle">Name<abbr title="Required Field" class="require">*</abbr></label>

      <div class ="fieldwrap">
        <span class="fldcol left">
        <input name="ffirst_name" type="text" tabindex="13" value="<?php echo set_value('ffirst_name',$ffirst_name); ?>"class="full">
        <label class="fldLabel">First Name</label>
        <?php echo form_error('first_name');   ?>   
        </span><span class="fldcol right">
        <input name="fsurname" type="text" tabindex="14" value="<?php echo set_value('fsurname'); ?>" class="full">
        <label class="fldLabel">Surname</label>
        <?php echo form_error('surname');   ?>   
        </span>
      </div>
    </li>
    <li>
      <label class="fldTitle">Login info<abbr title="Required Field" class="require">*</abbr></label>
      <div class ="fieldwrap">

        <span class="fldcol left">
          <input name="username" type="text" tabindex="13"  class="full">
          <label class="fldLabel">Username</label>
          <?php echo form_error('username');   ?>   
        </span>

        <span class="fldcol right">

        <select name="role" tabindex="12" id="combobox" value="<?php echo set_value('role'); ?>">
          <option value="first"<?php echo set_select('role', 'first', TRUE); ?>>First</option>
          <option value="second"<?php echo set_select('role', 'second'); ?>>Second</option>
          <option value="third"<?php echo set_select('role', 'third'); ?>>Third</option>
        </select>

        <label class="fldLabel">Choose user role</label>

        <?php echo form_error('role');   ?> 

        </span><span class="fldcol left">

        <input name="password" type="password" tabindex="13" class="full">
        <label class="fldLabel">Password</label>
        <?php echo form_error('password');   ?> 

        </span> 

        <span class="fldcol right">
          <input name="password2" type="password" tabindex="13" class="full">
          <label class="fldLabel">Comfirm Password</label>
          <?php echo form_error('password2');   ?>   
        </span>
      </div>
    </li>
    <li class="cmplxFld error">
      <label class="fldTitle">User info<abbr title="Required Field" class="require">*</abbr></label>
      <div class ="fieldwrap">
        <span class="full">
        <input name="address" type="text" tabindex="15" value="<?php echo set_value('address'); ?>" class="full">
        <label class="fldLabel">Street Address</label>
        <?php echo form_error('address');   ?>   
        </span>
        <span class="fldcol left">
        <input name="city" type="text" tabindex="17" value="<?php echo set_value('city'); ?>" class="full">
         <label class="fldLabel">City</label>
        <?php echo form_error('city');   ?> 
        </span>
         <span class="fldcol right">
        <input name="email" type="text" tabindex="18" value="<?php echo set_value('email'); ?>" class="full">
        <label class="fldLabel">email</label>
        <?php echo form_error('email');   ?>   
        </span>
        </span>
        <span class="fldcol left">
        <input name="phone" type="text" tabindex="17" value="<?php echo set_value('phone'); ?>"  class="full">
        <label class="fldLabel">Phone</label>
        <?php echo form_error('phone');   ?>   
        </span>
        <span class="fldcol right">
        <input name="mobile" type="text" tabindex="18" value="<?php echo set_value('mobile'); ?>" class="full">
        <label class="fldLabel">Mobile</label>
        <?php echo form_error('mobile');   ?>   
        </span>
        </span>
        <span class="fldcol left">
        <input name="am" type="text" tabindex="17" value="<?php echo set_value('am'); ?>" class="full">
        <label class="fldLabel">AM</label>
        <?php echo form_error('am');   ?>   
        </span>
        <span class="fldcol right">
        <input name="vat" type="text" tabindex="19" value="<?php echo set_value('vat'); ?>" class="full">
        <label class="fldLabel">VAT</label>
        <?php echo form_error('vat');   ?>   
        </span>
      </div>
    </li>
    <li class="buttons bottom-round noboder">
      <div class ="fieldwrap">
        <input name="submit" type="submit" value="Submit" class="submit-button">
      </div>
    </li>
  </ul>

</form>
</div>

有人可以告诉我我的代码有什么问题吗？

Answer 1

您需要做的是传递

上的第三个参数

$this->db->update('users', $update_user);

所以它看起来像这样

$this->db->update('users', $update_user,array('field_name'=>$id));

第三个参数在字符串上采用查询where部分的数组。它会生成此查询：

UPDATE users SET (...) WHERE field_name = content_of_$id_variable

编辑：我重新阅读了您的问题并注意到您在第一次更新时在其上添加了一个join子句。这段代码应该有用。

型号：

function edituser($id) {

    $this->db->trans_start();

    $update_user = array(
        'username' => $this->input->post('username'),
        'password' => md5($this->input->post('password')),     
        'email' => $this->input->post('email'),
        'level' => $this->input->post('role')                                       
    );

    $this->db->update('users', $update_user,array('user_id'=>$id));

    $update_info = array(
        'name' => $this->input->post('first_name'),
        'surname' => $this->input->post('surname'),
        'address' => $this->input->post('address'),         
        'city' => $this->input->post('city'),
        'phone' => $this->input->post('phone'),
        'mobile' => $this->input->post('mobile'),
        'am' => $this->input->post('am'),           
        'vat' => $this->input->post('vat')                              
    ); 

    $this->db->update('users_info', $update_info,array('user',$id)); 

    $status = $this->db->trans_status();

    $this->db->trans_complete();

    return $status;
}

告诉我它是怎么回事。

Answer 2

您的CI语法看起来是正确的。

我会检查

生成的查询是否正确。您可以使用last_query（）函数来查看它。 http://codeigniter.com/user_guide/database/helpers.html
所需参数是否正确通过您的表单发布

如何使用表单数据更新数据库

2 个答案: