/trunk/classes/modules/emarket/__compare.php

<?php

	abstract class __emarket_compare {

		public function compare($template = "default", $groups_names = '') {

			if(!$template) $template = "default";

			list(

				$template_block, $template_block_empty, $template_block_header, $template_block_header_item,

				$template_block_line, $template_block_line_item, $template_list_block, $template_list_block_line

			) = $this->loadTemplates(

				"emarket/compare/{$template}", "compare_block", "compare_block_empty", "compare_block_header",

				"compare_block_header_item", "compare_block_line", "compare_block_line_item", "compare_list_block",

				"compare_list_block_line"

			);

			$elements = $this->getCompareElements();



			if(sizeof($elements) == 0) return $template_block_empty;



			$hierarchy = umiHierarchy::getInstance();

			$block_arr = array(); $items = array();

			$headers = array(); $headers_arr = array();

			foreach($elements as $element_id) {

				$element = $hierarchy->getElement($element_id);

				if(!$element) continue;



				$item_arr = array(

					'attribute:id'		=> $element_id,

					'attribute:link'	=> $hierarchy->getPathById($element_id),

					'node:title'		=> $element->getName()

				);



				$items[] = def_module::parseTemplate($template_block_header_item, $item_arr, $element_id);

			}

			$headers_arr['subnodes:items'] = $items;

			$headers = def_module::parseTemplate($template_block_header, $headers_arr);



			$fields = array();

			foreach($elements as $element_id) {

				$fields = array_merge($fields, $this->getComparableFields($element_id,$groups_names));

			}



			$lines = array(); $iCnt = 0;

			foreach($fields as $field_name => $field) {

				$field_title = $field->getTitle();



				$items = array(); $is_void = true;

				foreach($elements as $element_id) {

					$element = $hierarchy->getElement($element_id);



					$item_arr = array(

						'attribute:id'		=> $element_id,

						'void:name'			=> $field_name,

						'void:field_name'	=> $field_name,

						'value'				=> $element->getObject()->getPropByName($field_name)

					);



					if($is_void && $element->$field_name) $is_void = false;

					$items[] = def_module::parseTemplate($template_block_line_item, $item_arr, $element_id);

				}



				if($is_void) continue;



				$iCnt++;



				$line_arr = array(

					'attribute:title'	=> $field_title,

					'attribute:name'	=> $field_name,

					'attribute:type'	=> $field->getFieldType()->getDataType(),

					'attribute:par'		=> intval($iCnt / 2 == ceil($iCnt / 2)),

					'subnodes:values'	=> $line_arr['void:items'] = $items

				);

				$lines[] = def_module::parseTemplate($template_block_line, $line_arr);

			}



			$block_arr['headers'] = $headers;

			$block_arr['void:lines'] = $block_arr['void:fields'] = $lines;

			$block_arr['fields'] = array();

			$block_arr['fields']['nodes:field'] = $lines;

			return def_module::parseTemplate($template_block, $block_arr);

		}





		public function getCompareElements() {

			static $elements;

			if(is_array($elements)) {

				return $elements;

			}



			if(!is_array(getSession("compare_list"))) {

				$_SESSION['compare_list'] = array();

			}



			if(is_array(getRequest('compare_list'))) {

				$_SESSION['compare_list'] = getRequest('compare_list');

			}



			$elements = getSession("compare_list");

			$elements = array_unique($elements);

			return $elements;

		}





		public function getComparableFields($element_id, $groups_names = '') {

			$element = umiHierarchy::getInstance()->getElement($element_id);



			if(!$element) return false;





			$type_id = $element->getObject()->getTypeId();

			$type = umiObjectTypesCollection::getInstance()->getType($type_id);

			if(empty($groups_names)) {

				$fields = $type->getAllFields(true);

			}

			else {

				$groups_names = trim($groups_names);

				$groups_names = strlen($groups_names) ? explode(" ", $groups_names) : array();



				$groups_arr =  $type->getFieldsGroupsList();

				$fields = array();

				foreach($groups_arr as $group) {

					if(!$group->getIsActive()) continue;

					if(!in_array($group->getName(), $groups_names)) {

						continue;

					}

					$fields = array_merge($fields,$group->getFields());

				}

			}



			$res = array();



			foreach($fields as $field) {

				if(!$field->getIsVisible()) continue;

				if(($field_name = $field->getName()) == "price") continue;

				$res[$field_name] = $field;

			}



			return $res;

		}





		public function addToCompare() {

			$this->add_to_compare(getRequest("param0"));

			$this->redirect(getServer('HTTP_REFERER'));

		}





		public function jsonAddToCompareList() {

			$element_id = getRequest("param0");



			list($add_to_compare_tpl, $already_exists_tpl) = $this->loadTemplates("emarket/compare/default", "json_add_to_compare", "json_compare_already_exists");



			$template = $this->add_to_compare($element_id) ? $add_to_compare_tpl : $already_exists_tpl;



			$block_arr = array('id' => $element_id);



			header("Content-type: text/javascript; charset=utf-8");

			$this->flush(def_module::parseTemplate($template, $block_arr, $element_id));

		}





		public function removeFromCompare() {

			$this->remove_from_compare(getRequest("param0"));



			$referer = getServer('HTTP_REFERER');

			if(stristr(getServer('HTTP_USER_AGENT'), 'msie')) {

				$referer = preg_replace(array("/\b\d{10,}\b/", "/&{2,}/", "/&$/"), array("", "&", ""), $referer);

				$referer.= (strstr($referer, "?") ? "&" : "?") . time();

				$referer = str_replace("?&", "?", $referer);

			}

			$this->redirect($referer);

		}





		public function jsonRemoveFromCompare() {

			$element_id = getRequest("param0");

			$this->remove_from_compare($element_id);



			list($template) = $this->loadTemplates("emarket/compare/default", "json_remove_from_compare");



			$block_arr = array('id' => $element_id);



			header("Content-type: text/javascript; charset=utf-8");

			$this->flush($template, $block_arr, $element_id);

		}





		public function resetCompareList() {

			$this->reset_compare();

			$this->redirect(getServer('HTTP_REFERER'));

		}



		public function jsonResetCompareList() {

			$this->reset_compare();



			list($template) = $this->loadTemplates("emarket/compare/default", "json_reset_compare_list");



			header("Content-type: text/javascript; charset=utf-8");

			$this->flush($template);



		}



		public function getCompareList($template = "default") {

			if(!$template) $tempalte = "default";



			list(

				$template_block, $template_block_empty, $template_block_line, $template_block_link

			) = $this->loadTemplates("emarket/compare/{$template}",

				"compare_list_block", "compare_list_block_empty", "compare_list_block_line", "compare_list_block_link"

			);



			$block_arr = array();



			$elements = $this->getCompareElements();



			if(sizeof($elements) == 0) {

				$block_arr['void:max_elements'] = $this->iMaxCompareElements ? $this->iMaxCompareElements : "не ограничено";

				if ($this->iMaxCompareElements) {

					$block_arr['attribute:max-elements'] = $this->iMaxCompareElements;

				}

				return def_module::parseTemplate($template_block_empty, $block_arr);

			}



			$items = "";



			$hierarchy = umiHierarchy::getInstance();

			foreach($elements as $element_id) {

				$el = $hierarchy->getElement($element_id);

				if ($el instanceof iUmiHierarchyElement) {

					$line_arr = array();

					$line_arr['attribute:id'] = $element_id;

					$line_arr['node:value'] = $el->getName();

					$line_arr['attribute:link'] = umiHierarchy::getInstance()->getPathById($element_id);

					$line_arr['xlink:href'] = 'upage://' . $element_id;

					$items[] = def_module::parseTemplate($template_block_line, $line_arr, $element_id);

				}

			}



			$block_arr['compare_link'] = (sizeof($elements) >= 2) ? $template_block_link : "";

			$block_arr['void:max_elements'] = $this->iMaxCompareElements ? $this->iMaxCompareElements : "не ограничено";

			if ($this->iMaxCompareElements) {

				$block_arr['attribute:max-elements'] = $this->iMaxCompareElements;

			}



			$block_arr['subnodes:items'] = $items;

			return def_module::parseTemplate($template_block, $block_arr);

		}





		public function reset_compare() {

			$_SESSION['compare_list'] = array();

		}



		public function add_to_compare($element_id) {

			if(!isset($_SESSION['compare_list']) || !is_array($_SESSION['compare_list'])) {

				$_SESSION['compare_list'] = array();

			}



			if ($this->iMaxCompareElements && count($_SESSION['compare_list']) >= $this->iMaxCompareElements) {

				$this->errorNewMessage("%errors_max_items_compare%");

				$this->errorPanic();

			}



			$oEventPoint = new umiEventPoint("emarket_add_to_compare");

			$oEventPoint->setMode("before");

			$oEventPoint->setParam("element_id", $element_id);

			$oEventPoint->setParam("compare_list", $_SESSION['compare_list']);

			$this->setEventPoint($oEventPoint);



			if(!in_array($element_id, $_SESSION['compare_list'])) {

				$_SESSION['compare_list'][] = $element_id;

				$oEventPoint = new umiEventPoint("emarket_add_to_compare");

				$oEventPoint->setMode("after");

				$oEventPoint->setParam("element_id", $element_id);

				$oEventPoint->setParam("compare_list", $_SESSION['compare_list']);

				$this->setEventPoint($oEventPoint);

				return true;

			}

			return false;

		}





		public function remove_from_compare($element_id) {

			if(!is_array($_SESSION['compare_list'])) {

				$_SESSION['compare_list'] = array();

				return;

			}



			if(in_array($element_id, $_SESSION['compare_list'])) {

				unset($_SESSION['compare_list'][array_search($element_id, $_SESSION['compare_list'])]);

			}



		}





		public function getCompareLink($elementId = null, $template = 'default') {

			if(!$elementId) return;

			if(!$template) $template = "default";

			list($tpl_add_link, $tpl_del_link) = def_module::loadTemplates("emarket/compare/{$template}", 'add_link', 'del_link');

			$elements = $this->getCompareElements();

			$inCompare = in_array($elementId, $elements);



			$addLink = $this->pre_lang . '/emarket/addToCompare/' . $elementId . '/';

			$delLink = $this->pre_lang . '/emarket/removeFromCompare/' . $elementId . '/';



			$block_arr = array(

				'add-link' => $inCompare ? null : $addLink,

				'del-link' => $inCompare ? $delLink : null

			);

			return def_module::parseTemplate(($inCompare ? $tpl_del_link : $tpl_add_link), $block_arr, $elementId);

		}

	};

?>