Good practices Codeigniter

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Good practices Codeigniter

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#1 by (3 votes)
#2 by (2 votes)

2

I see several programmers call all views to build a page in the example controller:

$this->load->view('head',$var);
$this->load->view('home');
$this->load->view('script');
$this->load->view('fim_html');

<html>
  <?php $this->load->view('head');?>
  <body>
    <?php echo $conteudo ;?>
  </body>
    <?php $this->load->view('script');?>
  </html>

I know it works the same, but does it get in the way? (in addition to the code organization)

What is the best way to use code insertion in the Controller?

php codeigniter

asked by anonymous 27.10.2016 / 11:53

2 answers

2

There is no better way. There is n way to do something. I particularly think it's bad to be carrying too many Views on the Controller.

I started studying CodeIgniter from the ASP.NET MVC background. There is the concept of MasterPage / Layout. I was able to do something close to that with CodeIgniter.

I have a masterpage page that has the basic structure of HTML, it will load a View to Menu, Footer, and will also load another View that is content itself.

masterpage.php

<?php
  defined('BASEPATH') OR exit('No direct script access allowed');

?>

<!DOCTYPE html>
<html lang="pt-br">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title><?=$viewtitle?></title>
    <link href="<?=base_url('/assets/css/bootstrap.min.css')?>" rel="stylesheet">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script></head><body><?php$this->load->view("menu"); ?>

    <div class="container">
        <?php
          // aqui serão carregadas as views parciais
          $this->load->view($viewname);
         ?>
    </div>

    <?php $this->load->view("rodape"); ?>

    <script src="<?=base_url('/assets/js/bootstrap.min.js')?>"></script>
    <script src="<?=base_url('/assets/js/util.js')?>"></script>
  </body>
</html>

For this I created a Controller in the Core folder

MY_Controller.php

class BaseController extends CI_Controller {

  // variavel que será retornada para as views
  // irá conter as informações necessárias para a view manipular as informações
  protected $data;

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

    // declara o array que contem as informacoes que vao para a view
    $this->data = array();
  }

  public function setData($nome, $valor) {
    $this->data[$nome] = $valor;
  }

  protected function setView($nome, $titulo) {
    $this->setData("viewname", $nome);
    $this->setData("viewtitle", $titulo);
  }

  public function loadView($nome, $titulo) {
    $this->setView($nome, $titulo);
    $this->load->view("masterpage", $this->data);
  }

}

I use it as well

class Produto extends BaseController {

   public function listarProdutos(){
      $this->load->model("ProdutoModel");
      $this->setData("produtos", $this->ProdutoModel->listar());

      // criei uma view chamada listagemProdutos.php
      // ela será carregada dentro da masterpage.php
      $this->loadView("listagemProdutos", "Listagem de Produtos");
   }  
}

listingProducts.php

<ul>
<?php foreach($produtos as $produto) {?>
  <li><?=$produto->nome?></li>
<?php } ?>
</ul>

27.10.2016 / 12:46

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score 3 · Accepted Answer

Actually adding many view in the controller is not very good, so I just found a very simple library To use the library create the Template.php file in application/views/Template.php and add the following code:

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Template {
    var $template_data = array();

    function set($name, $value)
    {
        $this->template_data[$name] = $value;
    }

    function load($template = '', $view = '' , $view_data = array(), $return = FALSE)
    {               
        $this->CI =& get_instance();
        $this->set('contents', $this->CI->load->view($view, $view_data, TRUE));         
        return $this->CI->load->view($template, $this->template_data, $return);
    }
}

Add to library application/config/autoload.php the library to load with application

$autoload['libraries'] = array('template');

Create the template.php file (or the nomenclature you want) in the view folder and add the following code as test:

<html>
<body>
    <div id="contents"><?= $contents ?></div>
</body>
</html>

The $ contents variable is where the view you want will be inserted. As an example, create a view with the name about.php with the following code:

<h1>About</h1>
<p>I'm so human!</p>

Now to use the template add controller :

$this->template->load('template', 'about');

Where:

template : Name of the template file created in the view folder;
about : Name of the file that contains the content you want to insert into the $ contents variable.

If you want to add data that will be used in view , just add the array as the third parameter, as the example shows:

$this->template->load('template', 'about', array(‘titulo’=> “Titulo da pagina”));

I hope I have helped.