CodeIgniter L3 model & active record & template
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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?