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Some documentation draft

Kanon controllers

Kanon controllers are hierarchical. Each controller represents some root url (example: /forum/) from which it can show index page and process further urls, starting from that point (Example: /forum/thread/, /forum/post/ etc). To achieve this, you can use one of the following:

  • method _action($action), where $action is the next path component between "/" - for custom url processing;
  • methods actionMyAction and initMyAction() will be processed before any output;
  • methods header() and footer() are for page header&footer;
  • method showMyAction() will be processed right after all page headers;
  • method _initIndex() for index page, see initMyAction()
  • method index() for index page, see showMyAction()

In case of nested controllers, order of calls will be following:

controller1::initAction() // call controller 2 in this method
controller2::initSomeAction() // call controller 3 in this method
controller3::initSomeOtherAction()
controller1::header() // controller 1
  controller2::header() // controller 2
    controller3::header() // controller 3
    controller3::showSomeOtherAction()
    controller3::footer() // controller 3
  controller2::footer() // controller 2
controller1::footer() // controller 1
class mySubController extends controller{
  public function index(){
    echo 'Hello, '.htmlspecialchars($this->_options['name']).'!';
  }
}
class myController extends controller{
  public function actionExample1($name){ // $name will come from $_POST['name'] or $_GET['name']
    $this->_runController('mySubController', array('name' => $name)); // run another controller, passing array of options
  }
}

Launching controller as application (bootstrap.php)

kanon::run('myController');

View component can be implemented, but is not required because logic is already separated from view (init vs show methods).

Kanon forms

class myForm extends controlSet{
   
}

Using from controller

public function initEdit(){
  $this->_form = new myForm(); // creating form
  $this->_form->setItem($myObject); // setting editable object
  if ($this->_form->process()){ // processing form
  		$this->back(); // redirect back to previous page
  }
}
public function showEdit(){
  echo $this->_form->getFormHtml(1); // show form with key 1 (field names will be in form of name="field[1]")
}

Kanon models

Somethere at bootstrap:

kanon::getModelStorage()
  ->connect('mysql:host=localhost;port=3307;dbname=DATABASE', 'USER', 'PASSWORD')
	;

Model example

class myModel extends model{ 
    protected $_classes = array( 
            'id' => 'integerProperty', 
            'title' => 'stringProperty', 
            'createdAt' => 'creationTimestampProperty', 
            'modifiedAt' => 'modificationTimestampProperty', 
        ); 
    protected $_fields = array( 
            'id' => 'id', 
            'title' => 'title', 
            'createdAt' => 'created_at', 
            'modifiedAt' => 'modified_at', 
        ); 
    protected $_foreignKeys = array( 
        ); 
    protected $_primaryKey = array( 
            'id', 
        ); 
    protected $_autoIncrement = 'id'; 
    protected $_options = array( 
        ); 
}

Other property classes can be found at [src/mvc-model/properties]

Working with model

$myModels = myModel::getCollection();
$list = $myModels->select($myModels->createdAt->gte(time()-24*60*60)); // select new models (created in 24 hours)
$model = $list->fetch(); // fetch next model from result list
$list->toArray(); // fetch all models into array
foreach ($list as $model){
  // iterating list
}

$model->title = "some title"; // setting value
echo $model->title->html(); // same as echo htmlspecialchars($model->title->getValue())
$model->save(); // saving changed fields
$model->delete(); // delete by primary key (if primary key exists), or by all values

Kanon modules

When using kanon::run, it will make some basic setup. One of setup steps is to load modules from the folder "modules" next to bootstrap.php (index.php)

Common layout:

somefolder/
	bootstrap.php
	modules/
		mymodule/
			controllers/
			forms/
			models/
				myModel.php
			subfolder/
				myClassFile.php
			module.php
				

module.php example

<?php
// setting up class autoloader:
$autoload = array(
'myClass' => 'subfolder/myClassFile.php',
'myModel' => 'models/myModel.php'
);
// registering models with related database tables:
$storage = kanon::getModelStorage();
$storage
	->registerCollection('myModel', 'myTable')
	->registerCollection('myOtherModel', 'my_other_table')
	;

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