Welcome to The Cookbook

Suppose our online application needs to perform a complex mathematical operation in many different parts of the application. We could create a component to house this shared logic for use in many different controllers.

The first step is to create a new component file and class. Create the file in /app/controllers/components/math.php. The basic structure for the component would look something like this.

<?php

class MathComponent extends Object {
    function doComplexOperation($amount1, $amount2) {
        return $amount1 + $amount2;
    }
}

?>

1. <?php
2. class MathComponent extends Object {
3. function doComplexOperation($amount1, $amount2) {
4. return $amount1 + $amount2;
5. }
6. }
7. ?>

Once our component is finished, we can use it in the application’s controllers by placing the component's name (minus the "Component" part) in the controller’s $components array. The controller will automatically be given a new attribute named after the component, through which we can access an instance of it:

/* Make the new component available at $this->Math,
as well as the standard $this->Session */
var $components = array('Math', 'Session');

1. /* Make the new component available at $this->Math,
2. as well as the standard $this->Session */
3. var $components = array('Math', 'Session');

Suppose our online application needs to perform a complex mathematical operation in many different parts of the application. We could create a component to house this shared logic for use in many different controllers.

The first step is to create a new component file and class. Create the file in /app/controllers/components/math.php. The basic structure for the component would look something like this.

<?php

class MathComponent extends Object {
    function doComplexOperation($amount1, $amount2) {
        return $amount1 + $amount2;
    }
}

?>

1. <?php
2. class MathComponent extends Object {
3. function doComplexOperation($amount1, $amount2) {
4. return $amount1 + $amount2;
5. }
6. }
7. ?>