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<?php
abstract class model {
const DB_TABLE = null;
const DB_KEY = 'id';
const STRING = 0;
const INTEGER = 1;
const FLOAT = 2;
const ARRAY = 3;
const BOOLEAN = 4;
const JSON = 5;
const SERIALIZED = 6;
protected static $Fields = [];
public static function create_instance(...$args) {
$cl = get_called_class();
return new $cl(...$args);
}
public function __construct($raw) {
foreach (static::$Fields as $name => $type)
$this->{toCamelCase($name)} = self::cast_to_type($type, $raw[$name]);
if (is_null(static::DB_TABLE))
trigger_error('class '.get_class($this).' doesn\'t have DB_TABLE defined');
}
/**
* @param $fields
*/
public function edit($fields) {
$db = getMySQL();
$save = [];
foreach ($fields as $name => $value) {
switch (static::$Fields[$name]) {
case self::ARRAY:
if (is_array($value)) {
$fields[$name] = implode(',', $value);
$save[$name] = $value;
}
break;
case self::INTEGER:
$value = (int)$value;
$fields[$name] = $value;
$save[$name] = $value;
break;
case self::FLOAT:
$value = (float)$value;
$fields[$name] = $value;
$save[$name] = $value;
break;
case self::BOOLEAN:
$fields[$name] = $value ? 1 : 0;
$save[$name] = $value;
break;
case self::JSON:
$fields[$name] = jsonEncode($value);
$save[$name] = $value;
break;
case self::SERIALIZED:
$fields[$name] = serialize($value);
$save[$name] = $value;
break;
default:
$value = (string)$value;
$fields[$name] = $value;
$save[$name] = $value;
break;
}
}
if (!$db->update(static::DB_TABLE, $fields, static::DB_KEY."=?", $this->get_id())) {
//debugError(__METHOD__.': failed to update database');
return;
}
foreach ($save as $name => $value)
$this->{toCamelCase($name)} = $value;
}
/**
* @return int
*/
public function get_id() {
return $this->{toCamelCase(static::DB_KEY)};
}
/**
* @param array $fields
* @param array $custom_getters
* @return array
*/
public function as_array(array $fields = [], array $custom_getters = []) {
if (empty($fields))
$fields = array_keys(static::$Fields);
$array = [];
foreach ($fields as $field) {
if (isset($custom_getters[$field]) && is_callable($custom_getters[$field])) {
$array[$field] = $custom_getters[$field]();
} else {
$array[$field] = $this->{toCamelCase($field)};
}
}
return $array;
}
/**
* @param $type
* @param $value
* @return array|bool|false|float|int|string
*/
protected static function cast_to_type($type, $value) {
switch ($type) {
case self::BOOLEAN:
return (bool)$value;
case self::INTEGER:
return (int)$value;
case self::FLOAT:
return (float)$value;
case self::ARRAY:
return array_filter(explode(',', $value));
case self::JSON:
return jsonDecode($value);
case self::SERIALIZED:
return unserialize($value);
default:
return (string)$value;
}
}
}
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