Codeigniter : Two Step View - Concept Implementation
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This document describes implementing a two-step view concept in CodeIgniter by using output buffering. It involves three main components: 1) an initialization hook to start output buffering, 2) a helper to generate the two-step view content and load it into a layout view, and 3) a layout view to echo the content. The helper gets the buffered content, loads a view to generate the content string, loads the layout view and passes the content, and the layout view echoes the content within the HTML structure. This allows separating view generation and rendering for a cleaner separation of logic and presentation.
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Codeigniter : Two Step View - Concept Implementation
- 1. CodeIgniter Two Step View Concept Implementation Abdul Malik Ikhsan http://slideshare.net/samsonasik
- 2. Two Step View • Turns domain data into HTML in two steps: first by forming some kind of logical page, then rendering the logical page into HTML. ( Martin Fowler )
- 3. Two Step View, a simple thought • Get View Content rendered • Then, `copy` the content into the html layout
- 4. Mention the ‘components’ needed • Hook ~> initialize • Helper ~> ‘generate’ two step view • Layout View ~> ‘echo-ing’ it
- 5. Initializing ( 1 ) <?php class Initializetwostepview { public function __construct() { } public function initialize() { ob_start(); //Turn on output buffering } } /* End of file Initializetwostepview.php */ /* Location: ./application/hooks/Initializetwostepview.php */
- 6. Initializing ( 2 ) $hook['pre_controller'][] = array( 'class' => 'Initializetwostepview', 'function' => 'initialize', 'filename' => 'Initializetwostepview.php', 'filepath' => 'hooks', // 'params' => array() ); /* End of file hooks.php */ /* Location: ./application/config/hooks.php */
- 7. <?php ‘Generate’ if ( ! function_exists('show')) { function show($view,$data) { //get content before view rendered $beforeshow = ob_get_clean(); // ~ Get current buffer contents //Assigning by reference allows you to use the original CodeIgniter object //rather than creating a copy of it. $this is for model,view,and controller only ;) $ci = & get_instance(); //combine into one string ;) $stringcontent = $beforeshow.$ci->load->view($view, $data, TRUE); //set datacontent ;) $datacontent['content'] = $stringcontent; //load layout view ;) $ci->load->view('layout', $datacontent); } } /* End of file layout_helper.php */ /* Location: ./application/helpers/layout_helper.php */
- 8. Testing <?php class Test extends CI_Controller { public function __construct() { parent::__construct(); $this->load->helper('layout'); } public function index() { $data = array(); $view = 'test_view'; echo '<b><font color="red">hello, i'm showed inside the view layout ;)</font></b> <br />'; show($view,$data); } } /* End of file test.php */ /* Location: ./application/controllers/test.php */
- 9. The content <p class=“article”> this is test view</p> <?php /* End of file test_view.php */ /* Location: ./application/view/test_view.php */
- 10. ‘Echo-ing’ in the Layout <html> <head> <title>CI with Layout</title> </head> <body> <h1> Header</h1> <div id="content"> <?php echo $content; ?> </div> <h1>Footer</h1> </body> </html> <?php /* End of file layout.php */ /* Location: ./application/view/layout.php */
- 11. Show Time ;) With output buffering Without output buffering
- 12. Terima Kasih
- 13. This presentation contained copyrighted material licensed under various creative commons licenses unless otherwise noted: References • CodeIgniter User Guide • http://martinfowler.com/eaaCatalog/twoStepView.html • http://slideshare.net/samsonasik • http://samsonasik.wordpress.com