CodeIgniter L3 model & active record & template
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The document discusses Codeigniter's model, active record, and template components. It describes models as PHP classes that work with database information by inserting, updating, and retrieving data. Active record allows database interactions with minimal scripting. Templates divide pages into header, content, and footer views, which are loaded into a main template view. The document includes examples of creating models, using active record for common database tasks, and building templates.
![Template
Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi
• Display hello world page
class Hello_world extends CI_Controller {
public function index() {
$data[‘main_content’]='hello_world’;
$this->load->view(‘template’, $data);
}
}](https://image.slidesharecdn.com/3-150409143947-conversion-gate01/85/CodeIgniter-L3-model-active-record-template-22-320.jpg)
CodeIgniter L3 model & active record & template
- 1. Codeigniter Framework 3. Model & Active record & Template Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi
- 2. Agenda • Model component. • Active record. • Template. Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi
- 3. Model component • What is Model. • Create Model class. • Load and call Model functions. Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi
- 4. What is Model? Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi
- 5. What is Model? Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • Models are PHP classes that are designed to work with information in your database. • contains functions to insert, update, and retrieve . • Class names must have the first letter capitalized with the rest of the name lowercase.
- 6. Create Model class Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • Create model class. class Model_name extends CI_Model { function __construct() { parent::__construct(); } function your_fanction(){ //your code }}
- 7. Load and call Model functions Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • load model class. $this->load->model(‘model_name'); • Call model functions. $this->model_name->function();
- 8. Live Test Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi Let’s Try It Live!
- 9. Active record • What is active record. • Selecting data. • Inserting data. • Updating data. • Deleting data. Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi
- 10. What is Active record Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • This pattern allows information to be retrieved, inserted, and updated in your database with minimal scripting. • allows you to create database independent applications.
- 11. Selecting data Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • Selecting data: $query = $this->db->get(‘table_name'); foreach ($query->result() as $row){ echo $row->field_name;} • Other Methods: $this->db->select(); $this->db->where(); $this->db->join();
- 12. Inserting data Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • Inserting data: $this->db->insert(‘table‘,$data);
- 13. Updating data Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • Updating data: $this->db->where(‘id’, 4); $this->db->update(‘my_table’,$data); Or $this->db->update(‘tabel’,$data,”id= $id”);
- 14. Deleting data Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • Deleting data: $this->db->where($id, 4); $this->db->Delete();
- 15. Live Test Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi Let’s Try It Live!
- 16. Template • Divide your template to 3 parts: Header, Content and Footer. • Put each one in a single view file • Make main view page. • Load the parts in the main view page. • Enjoy :D Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi
- 17. Template Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • Hello_world.php <html> <head> <title>Hello World!</title> </head> <body> <p>Hello world!</p> </body> </html>
- 18. Template Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • Display hello world page class Hello_world extends CI_Controller { public function index() { $this->load->view('hello_world'); } }
- 19. Template Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • Header.php <html> <head><title>Hello World!</title></head> • Hellow_world.php <p>Hello world!</p> • Footer.php </body></html>
- 20. Template Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • Display hello world page class Hello_world extends CI_Controller { public function index() { $this->load->view('header'); $this->load->view('hello_world'); $this->load->view('footer'); } }
- 21. Template Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • template.php <?php $this->load->view(‘header’);?> <?php $this->load->view($main_content);?> <?php $this->load->view(‘footer’);?>
- 22. Template Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi • Display hello world page class Hello_world extends CI_Controller { public function index() { $data[‘main_content’]='hello_world’; $this->load->view(‘template’, $data); } }
- 23. Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi Let’s Try It Live! Live Test
- 24. THANK YOU Mhd Opada Al-Bosh & Mhd Tahsin Al-Shalabi Questions?