args = $args;
$this->values = array();
$this->filters = array();
$this->labels = array();
$this->types = array();
$this->_key = 'filter-last-'.$key;
$this->_storage = $storage;
$this->_init_args();
$this->_values_limit = 10;
}
function get_values($name) {
if (array_key_exists($name, $this->values)) {
return $this->values[$name];
}
return array();
}
function get_arg($name) {
// try load from @storage and save
if (array_key_exists($name, $this->args)) {
return $this->args[$name];
}
return null;
}
function _init_args() {
$this->_read_args();
}
function add_filter($name, $arg_names, $label = '', $type = 'string') {
$this->filters[$name] = $arg_names;
$this->labels[$name] = ($label)? $label : $name;
$this->types[$name] = $type;
}
function _save_args() {
if (!$this->_key) { return; }
if ($this->_storage == 'cookie') {
$this->_save_args_in_cookie();
} else {
$this->_save_args_in_session();
}
}
function _save_args_in_session() {
if (!$this->_key) { return; }
$save_args = array();
foreach ($this->filters as $name => $arg_names) {
$type = $this->types[$name];
if ($type != 'int') {// type: 'int' or 'string'
$type = 'string';
}
foreach ($arg_names as $arg_name) {
if (($arg_val = V::get($arg_name, '', $this->args, $type)) != '') {
if ($type == 'int') {
if ($arg_val < 0) {
continue;
}
}
$cur_values = V::get($name, array(), $this->values, 'array');
if (!in_array($arg_val, $cur_values)) {
$cur_values[] = $arg_val;
if (count($cur_values) > $this->_values_limit) {
array_shift($cur_values);// - Shift an element off the beginning of array
}
$this->values[$name] = $cur_values;
}
}
}
}
foreach ($this->values as $name => $v_arr) {
if (!empty($v_arr)) {
$save_args[] = ''.urlencode($name).'='.urlencode(implode(';', $v_arr));
}
}
$save_args = implode(',', $save_args);
$_SESSION[$this->_key] = $save_args;
}
function _save_args_in_cookie() {
return;// TODO: ...
if (!$this->_key) { return; }
$save_args = array();
foreach ($this->filters as $name => $options) {
$arg = (isset($this->args[$name]))? $this->args[$name] : '';
if (count($options) == 1 && reset($options) == 'search') {
if ($arg != $this->args_default[$name]) {
$option = $arg;
$save_args[] = ''.urlencode($name).'='.urlencode($option);
}
} else {
foreach($options as $option => $field_name) {
if (isset($this->args[$name]) && $this->args[$name] == $option) {
$save_args[] = ''.urlencode($name).'='.urlencode($option);
}
}
}
}
// if ($save_args) {
$save_args = implode(',', $save_args);
echo'';
// }
}
function _read_args($force = false) {
if (!$this->_key) { return; }
if ($this->_storage == 'cookie') {
$this->_read_args_from_cookie($force);
} else {
$this->_read_args_from_session($force);
}
}
function _read_args_from_session($force = false) {
if (!$this->_key) { return; }
if (!array_key_exists($this->_key, $_SESSION)) { return; }
$c_args = explode(',', $_SESSION[$this->_key]);
foreach ($c_args as $c_val) {
$c_val = explode('=', $c_val);
if (count($c_val) != 2) continue;
$name = urldecode($c_val[0]);
$values = urldecode($c_val[1]);
if ($force || !array_key_exists($name, $this->values)) {
$this->values[$name] = explode(';', $values);
}
}
}
/**
* Read args from cookie.
*/
function _read_args_from_cookie($force = false) {
return;// TODO: ...
if (!$this->_key) { return; }
if (!array_key_exists($this->_key, $_COOKIE)) { return; }
$c_args = explode(',', $_COOKIE[$this->_key]);
foreach ($c_args as $c_val) {
$c_val = explode('=', $c_val);
if (count($c_val) != 2) continue;
$name = urldecode($c_val[0]);
$option = urldecode($c_val[1]);
if ($force || !array_key_exists($name, $this->args)) {
$this->args[$name] = $option;
}
}
}
/**
* Print form fields. Must be inside