112 lines
3.2 KiB
PHP
112 lines
3.2 KiB
PHP
<?php
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class Event {
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protected $id = 0;
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protected $product = 0;
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protected $starttime = 0;
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protected $returntime = null;
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protected static function create_event($product, $type) {
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$status = $product->get_status();
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if($status != 'available') {
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$emsg = '';
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$prod_id = $product->get_id();
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switch($status) {
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case 'on_loan':
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case 'overdue':
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$loan_id = $product->get_active_loan()->get_id();
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$emsg = "Product $prod_id has an active "
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. "loan (id $loan_id).";
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break;
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case 'discarded':
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$emsg = "Product $prod_id has been discarded.";
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break;
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case 'service':
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$service_id = $product->get_active_service()->get_id();
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$emsg = "Product $prod_id is on service "
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. "(id $service_id).";
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break;
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}
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throw new Exception($emsg);
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}
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switch($type) {
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case 'loan':
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case 'service':
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break;
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default:
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throw new Excpetion("Invalid argument '$type'");
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}
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$now = time();
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$insert = prepare('insert into `event`
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(`product`, `type`, `starttime`)
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values (?, ?, ?)');
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bind($insert, 'isi', $product->get_id(), $type, $now);
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execute($insert);
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$event_id = $insert->insert_id;
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return new Event($event_id);
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}
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public function __construct($id) {
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$search = prepare('select `id` from `event`
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where `id`=?');
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bind($search, 'i', $id);
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execute($search);
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$result = result_single($search);
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if($result === null) {
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throw new Exception('Event does not exist.');
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}
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$this->id = $result['id'];
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$this->update_fields();
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}
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protected function update_fields() {
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$get = prepare('select * from `event` where `id`=?');
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bind($get, 'i', $this->id);
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execute($get);
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$result = result_single($get);
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$this->product = $result['product'];
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$this->starttime = $result['starttime'];
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$this->returntime = $result['returntime'];
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}
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public function get_id() {
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return $this->id;
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}
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public function get_product() {
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return new Product($this->product);
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}
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public function get_starttime() {
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return $this->starttime;
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}
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public function get_returntime() {
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return $this->returntime;
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}
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public function is_active() {
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if($this->returntime === null) {
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return true;
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}
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return false;
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}
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public function get_status() {
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$class = strtolower(get_class($this));
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if($this->is_active()) {
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return 'active_' . $class;
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}
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return 'inactive_' . $class;
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}
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public function end() {
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$now = time();
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$query = prepare('update `event` set `returntime`=? where `id`=?');
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bind($query, 'ii', $now, $this->id);
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execute($query);
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$this->returntime = $now;
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return true;
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}
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}
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?>
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