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This thread is a discussion for the wiki article: Messages
   
 
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aataqwa
Posted: 09 July 2008 11:36 PM   [ Ignore ]  
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how to implement in controller??

function login() {
  $this->load->library(array(‘session’,‘messages’));
  $this->load->helper(‘form’);
  if($_POST == true){
    $username=$this->input->post(‘username’);
    $password=$this->input->post(‘password’);
    if(empty($username))$this->messages->add(‘Username harus diisi !’, ‘error’);
    if(empty($password))$this->messages->add(‘Password harus diisi!’, ‘error’);
  }
   
$data[‘messages’] = $this->messages->get();

}

if ($this->messages->get()) {
      echo “test”;
    $this->init_model->displayTemplate(‘front/login’, $data);
}else{
  echo “test2”;
$this->init_model->displayTemplate(‘front/login’, $data);
}

thk all..
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ontguy
Posted: 09 July 2008 11:54 PM   [ Ignore ]   [ # 1 ]  
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Here is the way I used it:
in the controller:

$this->messages->add($this->validation->error_string, 'error');
      $this->loadview('admin/category/add', $this->data); 

in the view:

<?=output_messages(); ?> 

output_messages is a function in a helper:

<?php
function output_messages($type = null)
{
  $CI =& get_instance();
   
  if ($CI->messages->sum($type) > 0)
  {
    $messages = $CI->messages->get($type);
    // display all messages of the type
    if (is_array($messages))
    {
        $output = '';
        foreach ($messages as $type => $msgs)
        {
            if (count($msgs) > 0)
            {
                $output .= '<div class="' . $type . '">';
                $output .= '<ul>';            
                foreach ($msgs as $message)
                {
                      $output .= $message;
                }
                $output .= '</ul>';
                $output .= '</div>';
            }
        }
    }
    return $output;
  }
} 
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aataqwa
Posted: 10 July 2008 11:15 PM   [ Ignore ]   [ # 2 ]  
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thank you ontguy, but I did not really understand about your explenation.
please send me complete sample of MVC for login application.

thank for your attention.
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ontguy
Posted: 11 July 2008 10:21 AM   [ Ignore ]   [ # 3 ]  
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With my previous reply in mind: I add the function output_messages to all views I expect to have a message. The view ‘catalog/browse’ has the function output_messages, so after a successful login that message would be seen.

I don’t think there’s a need for success and failure views if you’re using this library. Just add a message with what you would have included in the view.

controller - login.php

$this->_load_login_validation();
    
    //valid login checked in MY_Validation.php
    if ($this->validation->run() === FALSE)
    {
      $this->messages->add($this->validation->error_string, 'error');                 
          $this->loadview('user/login', $this->data);
        }
        else
        {
          $this->messages->add('successful login message', 'success');
      
      //could also check for a "referring" page and redirect to that
      redirect ('catalog/browse');    
    } 

 
view - login.php

<h2>Login</h2>
<?=output_messages(); ?>
<?=form_open('login'); ?>
    <label for="username">Username:</label> 
  <input type="text" name="username" id="username" value="<?=$this->validation->username; ?>" /><br />
  <label for="password">Password:</label>
    <input type="password" name="password"id="password"  value="<?=$this->validation->password; ?>" /><br /><br />
    <input type="submit" name="submit" value="Login" id="submit" />
<?=form_close(); ?> 
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aataqwa
Posted: 12 July 2008 05:26 AM   [ Ignore ]   [ # 4 ]  
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in my controller

function login() {
               $this->load->library(array('validation','messages'));
               $this->load->helper('form');
               $data['title']="Smartindo-Technology";
               
               $rules['username'] = 'trim|required';
               $rules['password'] = 'trim|required';
               $this->validation->set_rules($rules);
               
               $fields['username']    = 'Username';
               $fields['password']    = 'Password';
               $this->validation->set_fields($fields);
                
                if ($this->validation->run() == FALSE)
                {
                       $this->messages->add($this->validation->error_string, 'error');
                       $this->init_model->displayTemplate('front/login', $data);
                }
               else
               {
                        $this->messages->add('Successful login', 'success');
                        $this->init_model->displayTemplate('front/login', $data);
                }
        } 

in my view:

<table width="100%">
    <tr><td><?=output_messages();?> </td></tr>
</table>
<?=form_open("user/login/") ?>

<table width="100%" cellpadding="0" cellspacing="0">
    <tr valign="top">
       <td width="20%">Username</td>
      <td width="1%">:</td>
      <td width="79%"><input type="text" class="textfield" name="username" id="username" value="<?=$this->validation->username;?>" tabindex="1"></td>
    </tr>
   <tr valign="top"><td align="left">Password</td>
      <td>:</td>
      <td><input type="password" class="textfield" name="password" id="password" value="<?=$this->validation->password;?>" tabindex="2"></td>
   </tr>
   <tr>
      <td>&nbsp;</td>
      <td>&nbsp;</td>
      <td><input type="submit" class="button" name="action" value="Login"></td>
   </tr>
</table>

<?= form_close(); ?> 

in model messages:
function output_messages() there is.

in browser :

Fatal error: Call to undefined function output_messages() in /var/www/ci_tes/system/application/views/front/login.php on line 2

if I replace

$this->messages->add($this->validation->error_string, 'error');
$data['messages']=$this->messages->output_messages(); 

and in view replace

<?=$messages;?> 

it’s “OK”

but if is null $data[‘messages’]
in in my view:

<table width="100%">
    <tr><td><?=$messages;?> </td></tr>
</table> 

in browser

A PHP Error was encountered

Severity: Notice

Message: Undefined variable: messages

Filename: front/login.php

Line Number: 2

why is there..error… ???

thk all
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Randy Casburn
Posted: 12 July 2008 10:52 AM   [ Ignore ]   [ # 5 ]  
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@aataqwa—OK, you are really trying.  Please post up the load->view statement from your controller.  And try to explain what it is doing. When you do that, I bet you’ll discover your error…if not, I’ll see if I can help.

Randy

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ontguy
Posted: 12 July 2008 12:22 PM   [ Ignore ]   [ # 6 ]  
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Calling output_messages like this in your view should work:

$this->messages->output_messages(); 

or the way I’ve done it, is to create a messages_helper.php, load it in your controller then you can call output_messages in the view:
application/helpers/messages_helper.php

<?php
function output_messages($type = null)
{
  $CI =& get_instance();
   
  if ($CI->messages->sum($type) > 0)
  {
    $messages = $CI->messages->get($type);
    // display all messages of the type
    if (is_array($messages))
    {
        $output = '';
        foreach ($messages as $type => $msgs)
        {
            if (count($msgs) > 0)
            {
                $output .= '<div class="' . $type . '">';
                $output .= '<ul>';            
                foreach ($msgs as $message)
                {
                      $output .= $message;
                }
                $output .= '</ul>';
                $output .= '</div>';
            }
        }
    }
    return $output;
  }
} 
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aataqwa
Posted: 13 July 2008 10:46 PM   [ Ignore ]   [ # 7 ]  
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Thank you very much to all
I am undercommunication in view

<?=output_messages();?> 
should
<?$this->messages->output_messages();?? 

 

thk ontguy.
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logik
Posted: 19 August 2010 01:45 AM   [ Ignore ]   [ # 8 ]  
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Total Posts:  1
Joined  08-19-2010

Works great. A quick search and 1 minute later I have site messages. Thanks!
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woeps
Posted: 02 November 2010 03:50 PM   [ Ignore ]   [ # 9 ]  
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Joined  10-27-2010

Thanks for your the work!
I just changed the output method a bit, to have the possibility to get all messages returned as one single string formated with view-files:

// return messages of given type or all types, return false if none, clearing stack
    function get($mode = TRUE, $type = null) // MY MODIFICATION: added $mode (bool)
        {
        $messages = $this->_ci->session->userdata('messages');
        if (!empty($type)) {
            if (count($messages[$type]) == 0) {
                return false;
            }
            return $messages[$type];
        }
        // return false if there actually are no messages in the session
        $i = 0;
        foreach ($this->_types as $type) {
            $i += count($messages[$type]);
        }
        if ($i == 0) {
            return false;
        }

        // order return by order of type array above
        // i.e. success, error, warning and then informational messages last
        foreach ($this->_types as $type) {
            $return[$type] = $messages[$type];
        }
        $this->clear();
        
        // MY MODIFICATION START
            //Format the messages to one single Output-String (incl. View-Files)
        if($mode && $return)
            {
            $op = '';
            foreach($this->_types as $otp)
                {
                $op .= $this->_ci->load->view("messages/$otp", $return , TRUE);
                }                
            $return = $op;
            }
        //MY MODIFICATION END
        
        return $return;
        } 

to use this, you have to add a view-file for each entry which exists in the $_types array. For example:

<?php foreach($error as $message): ?><div id="error"><?=$message;?></div><?php endforeach; ?> 

Now I can use this library perfectly to communicate with the user in a fully templated environment and preserve the ability to adapt the output to the design.

Thanks for this library mate! :D
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