bouffeatulm/inc/UsersInGlobalPayback.class.php

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<?php
require_once('data/config.php');
require_once('Storage.class.php');
class UsersInGlobalPayback extends Storage {
protected $payback_id = 0, $users_list;
//users_list is a 2D array of users_id and amount between them
//user1 owes amount to user2
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protected $TABLE_NAME = "Users_in_GlobalPaybacks";
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protected $fields = array(
'global_payback_id'=>'int',
'user1_id'=>'int',
'user2_id'=>'int',
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'amount'=>'int'
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);
public function __construct() {
parent::__construct();
$users_list = array();
}
// Getters
// =======
public function getPaybackId() {
return $this->payback_id;
}
public function get() {
// Note : store amounts as int in database
$display = array();
foreach($this->users_list as $key1=>$temp) {
foreach($temp as $key2=>$amount) {
$display[$key1][$key2] = (float) ($amount / 100);
}
}
return $display;
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}
// Setters
// =======
public function setPaybackId($id) {
$this->payback_id = (int) $id;
}
public function set($users_in) {
// Note : store amounts as int in database
$store = array();
foreach($users_in as $key1=>$temp) {
foreach($temp as $key2=>$amount) {
$store[$key1][$key2] = (int) ($amount * 100);
}
}
$this->users_list = $store;
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}
// Maps htmlspecialchars on the class before display
// =================================================
public function secureDisplay() {
$this->payback_id = (int) $this->payback_id;
$temp_array = array();
foreach($this->users_list as $user1=>$temp) {
foreach($temp as $user2=>$amount) {
$temp_array[(int) $user1][(int) [$user2]] = (float) $amount;
}
}
$this->users_list = $temp_array;
return $this;
}
// Test if the payback should be closed
// ====================================
public function isEmpty() {
foreach($this->users_list as $user1=>$temp) {
foreach($temp as $user2=>$amount) {
if($amount != 0) {
return false;
}
}
}
return true;
}
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// Override load() method
// ======================
public function load() {
$query = 'SELECT ';
$i = false;
foreach($this->fields as $field=>$type) {
if($i) { $query .= ','; } else { $i = true; }
$query .= $field;
}
$query .= ' FROM '.MYSQL_PREFIX.$this->TABLE_NAME.' WHERE global_payback_id=:global_payback_id';
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$query = $this->getConnection()->prepare($query);
$query->bindParam(':global_payback_id', $this->payback_id);
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$query->execute();
$results = $query->fetchAll();
$this->users_list = array();
foreach($results as $result) {
$this->users_list[(int) $result['user1_id']][(int) $result['user2_id']] = (float) $result['amount'];
}
}
// Override save() method
// ======================
public function save() {
// TODO : Optimize ?
$query = 'SELECT COUNT(global_payback_id) FROM '.MYSQL_PREFIX.$this->TABLE_NAME.' WHERE global_payback_id=:payback_id';
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$query = $this->getConnection()->prepare($query);
$query->bindParam(':payback_id', $this->payback_id);
$query->execute();
$count = $query->fetchColumn(0);
if($count != 0) {
// If there are already some records, delete them first
$query = $this->getConnection()->prepare('DELETE FROM '.MYSQL_PREFIX.$this->TABLE_NAME.' WHERE global_payback_id=:payback_id');
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$query->bindParam(':payback_id', $this->payback_id);
$query->execute();
}
$query = 'INSERT INTO '.MYSQL_PREFIX.$this->TABLE_NAME.'(';
$i = false;
foreach($this->fields as $field=>$type) {
if($i) { $query .= ','; } else { $i = true;}
$query .= $field;
}
$query .= ') VALUES(:payback_id, :user1_id, :user2_id, :amount)';
$query = $this->getConnection()->prepare($query);
$query->bindParam(':payback_id', $this->payback_id);
foreach($this->users_list as $user1=>$temp) {
foreach($temp as $user2=>$amount) {
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$query->bindValue(':user1_id', intval($user1));
$query->bindValue(':user2_id', intval($user2));
$query->bindValue(':amount', floatval($amount));
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$query->execute();
}
}
}
// Override delete() method
// ========================
public function delete() {
$query = $this->getConnection()->prepare('DELETE FROM '.MYSQL_PREFIX.$this->TABLE_NAME.' WHERE payback_id=:payback_id');
$query->bindParam(':payback_id', $this->payback_id);
$query->execute();
}
}