{

/**

* This is a system function for processing SEF

* @author Howard R <howard@realtyna.com>

* @static

* @param array $instance

* @return mixed

*/

public static function process($instance)

{

/** get global settings **/

$settings = wpl_global::get_settings();

$wpl_qs = wpl_global::get_wp_qvar('wpl_qs');

$ex = explode($settings['sef_main_separator'], $wpl_qs);

/** get view **/

$view = self::get_view($wpl_qs, $settings['sef_main_separator']);

if(!trim($view)) $view = 'property_listing';

/** load view **/

return wpl_global::load($view, '', $instance);

}

/**

* Detects WPL view from URL (Query String)

* @author Howard R <howard@realtyna.com>

* @static

* @param string $query_string

* @param string $separator

* @return string

*/

public static function get_view($query_string = '', $separator = '')

{

/** first validations **/

if(trim($query_string) == '') $query_string = wpl_global::get_wp_qvar('wpl_qs');

if(trim($separator) == '') $separator = wpl_global::get_setting('sef_main_separator');

if(trim($query_string) != '')

{

$ex = explode($separator, $query_string);

if(trim($ex[0]) == '') $view = 'property_listing';

else

{

$exp = explode('-', $ex[0]);

if(is_numeric($exp[0])) $view = 'property_show';

elseif($ex[0] == 'features') $view = 'features';

elseif($ex[0] == 'v')

{

if($ex[1] == 'members') $view = 'addon_membership';

else $view = $ex[1];

}

elseif(strpos($ex[0], ':') === false) $view = 'profile_show';

else $view = 'property_listing';

}

}

else

{

$view = wpl_request::getVar('wplview', '');

if(trim($view) == '') self::set_view();

$view = wpl_request::getVar('wplview', '');

}

/** Set View **/

wpl_request::setVar('wplview', $view);

return $view;

}

/**

* Sets parameters of a view

* @author Howard R <howard@realtyna.com>

* @static

* @param string $view

* @param string $query_string

*/

public static function setVars($view = 'property_listing', $query_string = '')

{

/** first validations **/

if(trim($query_string) == '') $query_string = wpl_global::get_wp_qvar('wpl_qs');

$separator = wpl_global::get_setting('sef_main_separator'); /** default value is "/" character **/

$ex = explode($separator, $query_string);

/** set view **/

wpl_request::setVar('wplview', $view, 'method', false);

if($view == 'property_show')

{

$exp = explode('-', $ex[0]);

wpl_request::setVar('pid', $exp[0], 'method', false);

}

elseif($view == 'profile_show')

{

$query = "SELECT `ID` FROM `#__users` WHERE `user_login`='".$ex[0]."' ORDER BY ID ASC LIMIT 1";

$uid = wpl_db::select($query, 'loadResult');

wpl_request::setVar('uid', $uid, 'method', false);

wpl_request::setVar('sf_select_user_id', $uid, 'method', false);

}

else

{

/** specific fields like country, state, city and ... **/

$specific_fields = array();

/** set location vars **/

self::set_location_vars($ex);

foreach($ex as $parameter)

{

$types = array();

$detected = explode(':', $parameter);

if(count($detected) == 1) continue;

elseif(count($detected) == 2)

{

$types[0] = 'select';

$fields[0] = $detected[0];

$values[0] = $detected[1];

$parsed_value = explode('-', $detected[1]);

if(count($parsed_value) == 2)

{

$types[0] = 'tmin';

$fields[0] = $detected[0];

$values[0] = $parsed_value[0];

$types[1] = 'tmax';

$fields[1] = $detected[0];

$values[1] = $parsed_value[1];

}

elseif(count($parsed_value) == 3)

{

$types[0] = 'min';

$fields[0] = $detected[0];

$values[0] = $parsed_value[0];

$types[1] = 'max';

$fields[1] = $detected[0];

$values[1] = $parsed_value[1];

$types[2] = 'unit';

$fields[2] = $detected[0];

$values[2] = $parsed_value[2];

}

}

elseif(count($detected) == 3)

{

$types[0] = strtolower($detected[0]);

$fields[0] = $detected[1];

$values[0] = $detected[2];

}

$i = 0;

foreach($types as $type)

{

$field = self::parse_field(urldecode($fields[$i]), $specific_fields);

$value = self::get_id_by_name($field, urldecode($values[$i]));

if(trim($value) != '') wpl_request::setVar('sf_'.$type.'_'.$field, $value, 'method', false);

$i++;

}

}

}

}

/**

* Returns id of property type or listing type etc

* @author Howard R <howard@realtyna.com>

* @static

* @param string $field

* @param string $value

* @return string

*/

public static function get_id_by_name($field = '', $value = '')

{

/** return if value is numeric for some special fields **/

if(is_numeric($value)) return $value;

if($field == 'listing')

{

$query = "SELECT `id` FROM `#__wpl_listing_types` WHERE LOWER(name)='".strtolower($value)."'";

$result = wpl_db::select($query, 'loadResult');

return $result ? $result : '';

}

elseif($field == 'property_type')

{

$query = "SELECT `id` FROM `#__wpl_property_types` WHERE LOWER(name)='".strtolower($value)."'";

$result = wpl_db::select($query, 'loadResult');

return $result ? $result : '';

}

else

{

return $value;

}

}

/**

* It changes dummy fields to WPL fields for example "Property Type" to "property_type". Also it takes care of specific fields

* @author Howard R <howard@realtyna.com>

* @static

* @param string $field

* @param array $specific_fields

* @return string

*/

public static function parse_field($field, $specific_fields = array())

{

if(trim($field) == '') return '';

if(in_array($field, $specific_fields)) return $specific_fields[$field];

else return strtolower(str_replace(' ', '_', $field));

}

/**

* It changes dummy fields to WPL fields

* @author Howard R <howard@realtyna.com>

* @static

* @param array $parameters

*/

public static function set_location_vars($parameters)

{

/** specific fields like country, state, city and ... **/

$location_fields = array();

$rendered_parameters = array();

/** add location fields to specific fields **/

$location_settings = wpl_global::get_settings('3'); # location settings

foreach($location_settings as $location_key=>$location_value)

{

if(!strpos($location_key, '_keyword') or trim($location_value) == '') continue;

$location_id = str_replace('location', '', str_replace('_keyword', '', $location_key));

if($location_id != 'zips') $location_fields['location'.$location_id.'_id'] = self::parse_field($location_value);

else $location_fields['zip_id'] = self::parse_field($location_value);

}

foreach($parameters as $parameter)

{

$ex = explode(':', $parameter);

if(count($ex) == 2) $rendered_parameters[self::parse_field(urldecode($ex[0]))] = $ex[1];

elseif(count($ex) == 3) $rendered_parameters[self::parse_field(urldecode($ex[1]))] = $ex[2];

}

foreach($location_fields as $column=>$location_field)

{

if(!isset($rendered_parameters[$location_field])) continue;

$location_id = str_replace('location', '', str_replace('_id', '', $column));

if($location_id == 'zip') $location_id = 'zips';

$query = "SELECT `id` FROM `#__wpl_location".$location_id."` WHERE `name`='".urldecode($rendered_parameters[$location_field])."' ".($parent ? "AND `parent`='$parent'" : '');

$parent = wpl_db::select($query, 'loadResult');

wpl_request::setVar('sf_select_'.$column, $parent);

}

}

/**

* Sets WPL view to wplview variable. This function sets other parameters as well in $_REQUEST

* @author Howard R <howard@realtyna.com>

* @static

* @return void

*/

public static function set_view()

{

/** set view **/

$wplview = wpl_request::getVar('wplview', '');

if(trim($wplview) != '') return;

/** checking wordpress post type (post, page, any kind of posts and ...) **/

if(!is_page() and !is_single()) return;

/** getting the post id and post content **/

$post_id = wpl_global::get_the_ID();

$post_content = wpl_db::get('post_content', 'posts', 'id', $post_id);

$wplview = '';

if(strpos($post_content, '[wpl_property_listings') !== false or strpos($post_content, '[WPL') !== false) $wplview = 'property_listing';

elseif(strpos($post_content, '[wpl_property_show') !== false) $wplview = 'property_show';

elseif(strpos($post_content, '[wpl_profile_listing') !== false) $wplview = 'profile_listing';

elseif(strpos($post_content, '[wpl_profile_show') !== false) $wplview = 'profile_show';

elseif(strpos($post_content, '[wpl_my_profile') !== false) $wplview = 'profile_wizard';

elseif(strpos($post_content, '[wpl_add_edit_listing') !== false) $wplview = 'property_wizard';

elseif(strpos($post_content, '[wpl_listing_manager') !== false) $wplview = 'property_manager';

elseif(strpos($post_content, '[wpl_payments') !== false) $wplview = 'payments';

elseif(strpos($post_content, '[wpl_addon_') !== false)

{

$pos1 = strpos($post_content, '[wpl_addon_');

$pos2 = strpos($post_content, ' ', $pos1);

if($pos2 === false) $pos2 = strpos($post_content, ']', $pos1);

$shortcode = trim(substr($post_content, $pos1, ($pos2-$pos1)), '[_ ]');

$shortcode = str_replace('wpl_', '', $shortcode);

$wplview = $shortcode;

}

elseif(strpos($post_content, '[wpl_custom_') !== false) $wplview = 'wpl_custom_view';

/** set view **/

if(trim($wplview) != '') wpl_request::setVar('wplview', $wplview);

$pattern = get_shortcode_regex();

preg_match('/'.$pattern.'/s', $post_content, $matches);

$wpl_shortcodes = array('WPL', 'wpl_property_listings', 'wpl_property_show', 'wpl_profile_listing', 'wpl_profile_show', 'wpl_my_profile', 'wpl_add_edit_listing', 'wpl_listing_manager');

if(is_array($matches) and isset($matches[2]) and in_array($matches[2], $wpl_shortcodes))

{

$shortcode = $matches[0];

$params_str = trim($matches[3], ', ');

if(trim($params_str) != '')

{

$params_str_ex = explode(' ', $params_str);

foreach($params_str_ex as $param)

{

$param_ex = explode('=', $param);

$key = $param_ex[0];

$value = isset($param_ex[1]) ? trim($param_ex[1], '" ') : '';

if(trim($key) != '') wpl_request::setVar($key, $value, 'method', false);

}

}

}

}

/**

* Returns full link of a wordpress page. It's caring about WordPress permalink structure as well.

* @author Howard R <howard@realtyna.com>

* @static

* @param int $page_id

* @return string full link of page

*/

public static function get_page_link($page_id)

{

return get_page_link($page_id);

}

/**

* Returns WPL Main rewrite rule

* @author Howard R <howard@realtyna.com>

* @static

* @return string

*/

public static function get_main_rewrite_rule()

{

$main_permalink = wpl_sef::get_wpl_permalink();

$wpl_rules = array();

if(wpl_global::check_multilingual_status())

{

$lang_options = wpl_addon_pro::get_wpl_language_options();

$lang_str = '.+';

foreach($lang_options as $lang_option) $lang_str .= $lang_option['shortcode'].'|';

$lang_str = trim($lang_str, '|.+ ');

$wpl_rules[] = array('regex'=>'('.$lang_str.')/('.$main_permalink.')/(.+)$', 'url'=>'index.php?pagename=$matches[2]&wpl_qs=$matches[3]');

$wpl_rules[] = array('regex'=>'language/('.$lang_str.')/('.$main_permalink.')/(.+)$', 'url'=>'index.php?pagename=$matches[2]&wpl_qs=$matches[3]');

}

$wpl_rules[] = array('regex'=>'('.$main_permalink.')/(.+)$', 'url'=>'index.php?pagename=$matches[1]&wpl_qs=$matches[2]');

/** apply filters (This filter must place after all proccess) **/

_wpl_import('libraries.filters');

@extract(wpl_filters::apply('main_rewrite_rule', array('wpl_rules'=>$wpl_rules)));

return $wpl_rules;

}

/**

* Checks WordPress permalink

* @author Howard R <howard@realtyna.com>

* @static

* @return boolean

*/

public static function is_permalink_default()

{

$option = wpl_global::get_wp_option('permalink_structure', NULL);

if(!trim($option)) return true;

else return false;

}

/**

* Returns permalink of a post or page

* @author Howard R <howard@realtyna.com>

* @static

* @param type $post_id

* @return string

*/

public static function get_post_name($post_id)

{

if(!trim($post_id)) return '';

return wpl_db::get('post_name', 'posts', 'id', $post_id);

}

/**

* Returns Post ID of a post or page by its permalink

* @author Howard R <howard@realtyna.com>

* @static

* @param string $post_name

* @return int

*/

public static function get_post_id($post_name)

{

if(!trim($post_name)) return 0;

return wpl_db::get('ID', 'posts', 'post_name', $post_name);

}

/**

* Returns WPL permalink

* @author Howard R <howard@realtyna.com>

* @static

* @return string

*/

public static function get_wpl_permalink($full = false)

{

$main_permalink = wpl_global::get_setting('main_permalink');

if(!is_numeric($main_permalink)) $main_permalink = wpl_sef::get_post_id($main_permalink);

/** Multilingual **/

if(wpl_global::check_multilingual_status())

{

$lang_permalink = wpl_addon_pro::get_lang_main_page();

if($lang_permalink) $main_permalink = $lang_permalink;

}

if($full)

{

$url = wpl_sef::get_page_link($main_permalink);

/** make sure / character is added to the end of URL in case WordPress SEO permalink is enabled **/

$nosef = wpl_sef::is_permalink_default();

if(!$nosef) $url = trim($url, '/').'/';

return $url;

}

return wpl_sef::get_post_name($main_permalink);

}

/**

* Returns WPL main page ID

* @author Howard R <howard@realtyna.com>

* @static

* @return int

*/

public static function get_wpl_main_page_id()

{

$main_permalink = wpl_global::get_setting('main_permalink');

if(!is_numeric($main_permalink)) $main_permalink = wpl_sef::get_post_id($main_permalink);

/** Multilingual **/

if(wpl_global::check_multilingual_status())

{

$lang_permalink = wpl_addon_pro::get_lang_main_page();

if($lang_permalink) $main_permalink = $lang_permalink;

}

return $main_permalink;

}

}