0

如果你们需要其他信息，那么上一个问题就在这里：

从数据库中获取信息

另一个更新

尽管你们所有人都非常有帮助。我已经设法获得了输出，但我仍然真的很困惑，可以说我想首先看到输出，所以我无视控制器。

在我看到我的命令是正确的之后，我会制作一个控制器 :) 我不知道为什么，但这就是我如何理解整个概念的方式。反正..

对于我的 membership_model.php

function member_here()
{
$this->db->select('');
$this->db->from('membership');
$this->db->where('username',$this->input->post('username'));
$q=$this->db->get('');

if($q->num_rows() > 0) {
$data = array();
foreach($q->result() as $row) {
    $data=$row;
}
return $data;
}
}

和我的signup_view.php

<html>
<head>
<title></title>
</head>
<body>
<?php $this->load->view('includes/header')?>

<div align="right"><?php echo anchor('login/signin', 'Login');?></div>

<?php

$option1 = array(
              'name'  => 'What was your childhood nickname?',
              'value'   => 'What was your childhood nickname?'
            );

$option2= array(
    'name'  => 'What is your pet\'s name?',
    'value' => 'What is your pet\s name?'
);

$option3= array(
    'name'  => 'In what city were you born?',
    'value' => 'In what city were you born?'
);

$option4= array(
    'name'  => 'What is the color of your eyes?',
    'value' => 'What is the color of your eyes?'
);

$option5= array(
    'name'  => 'What is your favorite color?',
    'value' => 'What is your favorite color?'
);


echo form_open('login/create_member');
echo "<table width=\"80%\ cellpadding=\"3px\">
<tr>
<td>User Information:</td>
</tr>
<tr>
<td>&nbsp;</td>
</tr>";
echo "<tr><td>First Name*: </td></tr>";
echo "<tr><td>";
echo form_input('first_name', set_value('first_name'));
echo "</tr></td>";
echo "<tr><td>Last Name*: </td></tr>";
echo "<tr><td>";
echo form_input('last_name', set_value('last_name'));
echo "</td></tr>";
echo "<tr><td>Email Address*: </td></tr>";
echo "<tr><td>";
echo form_input('email_address', set_value('email_address'));
echo "</tr></td>";
echo "<tr><td>Gender: </td></tr>";
echo "<tr><td>";
?>
<input type="radio" name="gender" value="Male" />Male &nbsp;
<input type="radio" name="gender" value="Female" />Female
<?php

echo "</tr></td>";

echo "<tr>
<td></td>
</tr>
</table>";
?>



<?php
echo "<table width=\"80%\ cellpadding=\"3px\">
<tr>
<td> Account Information:</td>
</tr>
<tr>
<td>&nbsp;</td>
</tr>";
echo "<tr><td>Userame*: </td></tr>";
echo "<tr><td>";
echo form_input('username', set_value('username'));
echo "</td></tr>";
echo "<tr><td>Password*: </td></tr>";
echo "<tr><td>";
echo form_password('password');
echo "</td></tr>";
echo "<tr><td>Password Confirmation*: </td></tr>";
echo "<tr><td>";
echo form_password('password2');
echo "</td></tr>";
echo "<tr><td>";
echo "Security Question*:";
echo "</td></tr>";
echo "<tr><td>";
?>
<select name = "security_question" value="security question">
<option value = "What was your childhood nickname?">What was your childhood nickname?</option>
<option value = "What is your pet's name?">What is your pet's name?</option>
<option value = "In what city were you born?">In what city were you born?</option>
<option value = "What is the color of your eyes?">What is the color of your eyes?</option>
<option value = "What is your favorite color?">What is your favorite color?</option>
</select>

<?php
echo "</td></tr>";
echo "<tr><td>";
echo "Security Answer*:";
echo "</td></tr>";
echo "<tr><td>";
echo form_input('security_answer');
echo "</td></tr>";

echo "<tr><td>";
echo form_submit('submit', 'Register');
echo form_reset('reset', 'Reset');
echo "</tr></td>";
echo form_close();

echo "<tr>
<td></td>
</tr>
</table>";
?>



<?php echo validation_errors('<p class="error">');?>

所以，这就是我所有的代码。我试图从数据库中获取登录用户的名字、姓氏、电子邮件地址和所有其他信息。

如果我使用$data[]=$row;而不是$data=$row;在我的模型中使用，则会出现以下错误：

Severity: Notice

Message: Trying to get property of non-object

Filename: views/members_area.php

Line Number: 20

所以我该怎么做。我在没有控制器的情况下编码。我只是检查结果 谢谢！

4

2 回答 2

0

这可以很简单阅读用户指南以获得更简单的示例

Model

Class Members Extends CI_Model
{
    function __construct(){
        parent::__construct();
    }

    function member_here()
    {
            $this->db->where('username',$this->input->post('username'));
        $query  =   $this->db->get('membership');

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

Controlelr 

Class Login extends CI_Controller
{
    function __construct()
    {
        parent::__construct();
    }

    public function index()
    {
        $this->load->view('login_view');
    }

    public function result()
    {
        $this->load->model('membership');
        $data['member'] = $this->membership->member_here(); 
        $this->load->view('result_view', $data);
    }
}

And in View you can simple do it

<?php
foreach($member as $row){
?>
<option value="<?php echo $row->id?>"><?php echo $row->name?></option>
<?php
}
?>
于 2012-11-12T06:07:33.650 回答
0

有几点可以澄清：

  • Amodel是持久存在于数据库中的实体。在您的情况下：会员资格
  • Acontroller负责加载模型，并将其传递给要显示的视图
  • A viewonly 应该有 html 标记，没有功能，没有逻辑。

数据库

假设您的数据库具有以下结构。

+---------------+-----------+------------+--------------------+
| id_membership | username  | name       | email              |
+---------------+-----------+------------+--------------------+
|             1 | Marishka  | marishkapv | marishka@email.com |
|             2 | johndoe   | John       | john@doe.com       |
|             3 | dennisv   | Dennis     | dennis@v.com       |
+---------------+-----------+------------+--------------------+

模型

您可以class Membership extends CI_Model在/application/models/membership.php文件中构建模型。

class Membership extends CI_Model {

    function __construct()
    {
        parent::__construct();
    }

    function member_here()
    {
        $this->db->select('');
        $this->db->from('membership');
        $this->db->where('username',$this->input->post('username'));
        $q = $this->db->get('');

        if($q->num_rows() > 0) 
        {
            $data = array();
            foreach($q->result() as $row) 
            {
                $data=$row;
            }
            return $data;
        }
    }
}

控制器

假设您有一个登录页面example.com/index.php/login，它应该位于/application/controllers/login.php如下：

class Login extends CI_Controller
{
    function __construct()
    {
        parent::__construct();
    }

    public function index()
    {
        $this->load->view('login_view');
    }

    public function result()
    {
        $this->load->model('membership');
        $data['member'] = $this->membership->member_here(); 
        $this->load->view('result_view', $data);
    }
}

看起来模型已加载抛出这两行：

//Load the model in make use of its functions
$this->load->model('membership'); 

//load the row whit the given username
//the result is assigned to array with the key "member", in the view you access this
//value with $member var
$data['member'] = $this->membership->member_here();

意见

正如您在控制器代码中所述，有两个视图文件，login_view和result_view. 第一个将显示一个 html 表单，您可以在其中放置用户名以触发选择查询。根据result_view选择的会员资格显示会员信息

login_view.php

<html>
    <head></head>
    <body>
    <form action="login/result" method="post">
        Type your username: <input type="text" name="username" />
        <input type="submit" value="Load from database" />
    </form>
    </body>
</html>

结果视图.php

<h4>Details:</h4>
<p>
Id: <?=$member->id_membership?> <br />
Username: <?=$member->username?> <br />
Email: <?=$member->email?>
</p>
于 2012-11-12T04:50:40.630 回答