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khosb/modules/adsl/classes/ADSL.php

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2010-11-29 22:41:08 +00:00
<?php defined('SYSPATH') or die('No direct access allowed.');
/**
* This class looks after ADSL products
*
* @package OSB
* @subpackage Product
* @category Helpers
* @author Deon George
* @copyright (c) 2010 Deon George
* @license http://dev.leenooks.net/license.html
*/
class ADSL {
// Map the table fields
static $map = array(
'base_up_offpeak'=>'extra_up_offpeak',
'base_down_offpeak'=>'extra_down_offpeak',
'base_up_peak'=>'extra_up_peak',
'base_down_peak'=>'extra_down_peak',
);
/**
* Return an instance of this class
*
* @return ADSL
*/
public static function instance() {
return new ADSL;
}
public function contract_view($data,$price_base,$price_setup) {
// @todo - this test shouldnt be required
if (preg_match('/^a:/',$data))
throw new Kohana_Exception('Data shouldnt be a serialized array');
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$ao = ORM::factory('ADSL_Plan',$data);
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$output = View::factory('adsl/contract_view')
->set('record',$ao)
->set('price_base',$price_base)
->set('price_setup',$price_setup);
return $output;
}
/**
* Collect information for the cart
*/
public function product_cart() {
}
/**
* Map the metric fields to their excess rate
*/
public static function map($metric) {
return ADSL::$map[$metric];
}
/**
* Calculate the allowance array or traffic used array
*
* If:
* + UPLOADS are charged and there are no PEAK/OFFPEAK periods (therefore all
* traffic is charged), the allowance will be shown as 1 metric - TRAFFIC.
* + UPLOADS are charged and there are PEAK/OFFPEAK periods the allowance
* will be shown as 2 metrics - PEAK/OFFPEAK.
* + UPLOADS are NOT charged and there are no PEAK/OFFPEAK periods the allowance
* will be shown as 1 metrics - TRAFFIC.
* + UPLOADS are NOT charged and there are PEAK/OFFPEAK periods the allowance
* will be shown as 2 metrics - PEAK/OFFPEAK.
*
* Thus:
* + If base_x_Y is NULL, all Y traffic is FREE (ignore respective extra_x_Y setting).
* + If base_x_Y is a number, all Y traffic is FREE up to the number (evaluate extra_x_Y setting).
* + If extra_x_Y is a number, charge this amount for traffic over base_x_Y.
* + If extra_down_peak is NULL this is invalid, treat base_down_peak as NULL
* + If extra_down_offpeak is NULL add traffic_down_offpeak to traffic_down_peak
* + If extra_up_peak is NULL add traffic_up_peak to traffic_down_peak
* + If extra_up_offpeak is NULL add traffic_up_offpeak to traffic_down_offpeak
*
* @param array $plan - the allowance plan
*/
public static function allowance($plan) {
// Map the NULL relationships
$extras = array(
'extra_up_offpeak'=>'base_down_offpeak',
'extra_down_offpeak'=>'base_down_peak',
'extra_up_peak'=>'base_down_peak',
'extra_down_peak'=>'base_down_peak',
);
// Work out if we charge each period
$a = array();
if (! isset($plan['extra_down_peak']) OR is_null($plan['extra_down_peak']))
$a['base_down_peak'] = 0;
foreach (ADSL::$map as $k => $v) {
// Work through attributes we count.
if (isset($plan[$k]) AND ! is_null($plan[$k])) {
// Work through attributes that are merged
if (! isset($plan[$v]) OR is_null($plan[$v])) {
if (isset($a[$k])) {
if (isset($a[$extras[$v]]))
$a[$extras[$v]] += $a[$k];
else
$a[$extras[$v]] = $a[$k];
unset($a[$k]);
}
if (isset($a[$extras[$v]]))
$a[$extras[$v]] += $plan[$k];
else
$a[$extras[$v]] = $plan[$k];
} else {
if (isset($a[$k]))
$a[$k] += $plan[$k];
else
$a[$k] = $plan[$k];
}
}
}
// Return the output sorted
$return = array();
foreach (array('base_down_peak','base_down_offpeak','base_up_peak','base_up_offpeak') as $k)
if (isset($a[$k]))
$return[$k] = $a[$k];
return $return;
}
}
?>