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Created: Mon, Feb 24, 9:53 PM

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	Index: branches/5.2.x/units/links/links_event_handler.php
	===================================================================
	--- branches/5.2.x/units/links/links_event_handler.php (revision 14702)
	+++ branches/5.2.x/units/links/links_event_handler.php (revision 14703)
	@@ -1,525 +1,526 @@
	<?php
	/**
	* @version $Id$
	* @package In-Link
	* @copyright Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
	* @license GNU/GPL
	* In-Portal is Open Source software.
	* This means that this software may have been modified pursuant
	* the GNU General Public License, and as distributed it includes
	* or is derivative of works licensed under the GNU General Public License
	* or other free or open source software licenses.
	* See http://www.in-portal.org/license for copyright notices and details.
	*/

	defined('FULL_PATH') or die('restricted access!');

	class LinksEventHandler extends kCatDBEventHandler {

	/**
	* Allows to override standard permission mapping
	*
	*/
	function mapPermissions()
	{
	parent::mapPermissions();
	$permissions = Array(
	'OnContactFormSubmit' => Array('self' => true),
	'OnProcessReciprocalLinks' => Array('self' => true),
	'OnSetGrouping' => Array('self' => 'view'),
	'OnStoreSelected' => Array('self' => 'view'),
	'OnMerge' => Array('self' => 'edit'),
	);
	$this->permMapping = array_merge($this->permMapping, $permissions);
	}

	/**
	* Apply any custom changes to list's sql query
	*
	* @param kEvent $event
	* @return void
	* @access protected
	* @see kDBEventHandler::OnListBuild()
	*/
	protected function SetCustomQuery(&$event)
	{
	parent::SetCustomQuery($event);

	$object =& $event->getObject();
	/* @var $object kDBList */

	if (!$this->Application->isAdminUser) {
	$object->addFilter('expire_filter', '(Expire > '.adodb_mktime().' OR Expire IS NULL)');
	}

	if (substr($event->Special, 0, 10) == 'duplicates') {
	$object->removeFilter('category_filter');

	$link_helper =& $this->Application->recallObject('LinkHelper');
	/* @var $link_helper LinkHelper */

	$grouping = $link_helper->getGrouping( $event->getPrefixSpecial() );
	switch ($event->Special) {
	case 'duplicates':
	foreach ($grouping as $group_field) {
	$object->AddGroupByField($object->TableName.'.'.$group_field);
	}
	$object->addFilter('has_dupes_filter', 'DupeCount > 1', kDBList::AGGREGATE_FILTER);
	break;

	case 'duplicates-sub':
	$main_object =& $this->Application->recallObject($event->Prefix.'.duplicates');
	foreach ($grouping as $field_index => $group_field) {
	$object->addFilter('dupe_filter_'.$field_index, '%1$s.`'.$group_field.'` = '.$this->Conn->qstr($main_object->GetDBField($group_field)) );
	}
	break;
	}
	$object->addFilter('primary_filter', TABLE_PREFIX.'CategoryItems.PrimaryCat = 1');
	}

	}

	/**
	* Set groping fields for link duplicate checker
	*
	* @param kEvent $event
	*/
	function OnSetGrouping(&$event)
	{
	$this->Application->LinkVar($event->getPrefixSpecial(true).'_dupe_fields', $event->getPrefixSpecial().'_dupe_fields');
	}

	/**
	* Merge duplicate links together (only categories) & delete duplicates
	*
	* @param kEvent $event
	*/
	function OnMerge(&$event)
	{
	$link_helper =& $this->Application->recallObject('LinkHelper');
	/* @var $link_helper LinkHelper */

	$grouping = $link_helper->getGrouping( $event->getPrefixSpecial() );

	$ids = $this->StoreSelectedIDs($event);
	if (!$ids) {
	- return true;
	+ return ;
	}

	// check, that user has not selected multiple links from same group
	$primary_links = Array();

	$id_field = $this->Application->getUnitOption($event->Prefix, 'IDField');
	$table_name = $this->Application->getUnitOption($event->Prefix, 'TableName');
	$sql = 'SELECT *
	FROM '.$table_name.'
	WHERE '.$id_field.' IN ('.implode(',', $ids).')';
	$links = $this->Conn->Query($sql, $id_field);

	$groping_error = false;
	foreach ($links as $link_id => $link_data) {
	$group_key = '';
	foreach ($grouping as $grouping_field) {
	$group_key .= 'main_table.`'.$grouping_field.'` = '.$this->Conn->qstr($link_data[$grouping_field]).' AND ';
	}
	$group_key = substr($group_key, 0, -5);

	if (isset($primary_links[$group_key])) {
	$groping_error = true;
	break;
	}
	else {
	$primary_links[$group_key] = $link_data['ResourceId'];
	}
	}

	if (!$groping_error) {
	- $temp =& $this->Application->recallObject($event->getPrefixSpecial().'_TempHandler', 'kTempTablesHandler');
	+ $temp_handler =& $this->Application->recallObject($event->getPrefixSpecial().'_TempHandler', 'kTempTablesHandler');
	+ /* @var $temp_handler kTempTablesHandler */

	$categories_sql = 'SELECT main_table.ResourceId, ci.CategoryId, main_table.'.$id_field.'
	FROM '.$table_name.' main_table
	LEFT JOIN '.TABLE_PREFIX.'CategoryItems ci ON main_table.ResourceId = ci.ItemResourceId
	WHERE %s';

	foreach ($primary_links as $group_key => $primary_resource_id) {
	$categories = Array();
	$group_links = Array();
	$group_categories = $this->Conn->Query(sprintf($categories_sql, $group_key));
	foreach ($group_categories as $category_data) {
	$group_links[ $category_data['ResourceId'] ] = $category_data[$id_field];
	$categories[$category_data['ResourceId'] == $primary_resource_id ? 'remove' : 'add'][] = $category_data['CategoryId'];
	}
	unset($group_links[$primary_resource_id]);
	$categories = array_unique( array_diff($categories['add'], $categories['remove']) );
	if ($categories) {
	// add link to other link categories
	$values_sql = '';
	foreach ($categories as $category_id) {
	$values_sql .= '('.$category_id.','.$primary_resource_id.',0),';
	}
	$values_sql = substr($values_sql, 0, -1);
	$insert_sql = 'INSERT INTO '.TABLE_PREFIX.'CategoryItems (CategoryId,ItemResourceId,PrimaryCat) VALUES '.$values_sql;
	$this->Conn->Query($insert_sql);
	}

	// delete all links from group except primary
	- $temp->DeleteItems($event->Prefix, $event->Special, array_values($group_links));
	+ $temp_handler->DeleteItems($event->Prefix, $event->Special, array_values($group_links));
	}


	}
	else {
	$event->status = kEvent::erFAIL;
	$event->redirect = false;
	$this->Application->SetVar($event->getPrefixSpecial().'_error', 1);
	}

	}

	/**
	* Stores ids, that were selected in duplicate checker
	*
	* @param kEvent $event
	*/
	function OnStoreSelected(&$event)
	{
	$this->StoreSelectedIDs($event);

	$event->SetRedirectParam('pass', 'm,' . $event->getPrefixSpecial());
	}

	/**
	* Allows to enhance link after creation
	*
	* @param kEvent $event
	*/
	function OnCreate(&$event)
	{
	parent::OnCreate($event);

	if ($event->status == kEvent::erSUCCESS) {
	$object =& $event->getObject();
	/* @var $object kDBItem */

	// replace 0 id in post with actual created id (used in enhancement process)
	$items_info = $this->Application->GetVar( $event->getPrefixSpecial(true) );
	kUtil::array_rename_key($items_info, 0, $object->GetID());
	$this->Application->SetVar($event->getPrefixSpecial(true), $items_info);

	// listing was created -> enhance it right away
	$enhancement_event = new kEvent('ls:OnRequestEnhancement');
	$this->Application->HandleEvent($enhancement_event);
	if (($enhancement_event->status == kEvent::erSUCCESS) && strlen($enhancement_event->redirect)) {
	$event->SetRedirectParam('next_template', $event->redirect);
	$event->redirect = $enhancement_event->redirect;
	}
	}
	}

	/**
	* Adds free listing option to listing type selection
	*
	* @param kEvent $event
	*/
	function OnAfterConfigRead(&$event)
	{
	parent::OnAfterConfigRead($event);

	if (defined('IS_INSTALL') && IS_INSTALL) {
	return ;
	}

	$free_listings = $this->Application->ConfigValue('Link_AllowFreeListings');

	$virtual_fields = $this->Application->getUnitOption($event->Prefix, 'VirtualFields');
	$virtual_fields['ListingTypeId']['options'] = $free_listings ? Array (0 => 'lu_free_listing') : Array ();

	$language_id = $this->Application->GetVar('m_lang');
	$duplicate_options = array_flip($virtual_fields['DuplicateCheckFields']['options']);
	$duplicate_options['NAME'] = 'l' . $language_id . '_Name';
	$virtual_fields['DuplicateCheckFields']['options'] = array_flip($duplicate_options);
	$default = $virtual_fields['DuplicateCheckFields']['default'];
	$virtual_fields['DuplicateCheckFields']['default'] = str_replace('\|Name\|', '\|l' . $language_id . '_Name\|', $default);

	$this->Application->setUnitOption($event->Prefix, 'VirtualFields', $virtual_fields);

	if (!$this->Application->isAdminUser) {
	// for now only on Front-End
	$this->Application->setUnitOption($event->Prefix, 'PopulateMlFields', true);
	}
	}

	/**
	* contact us form submitted on link details page
	*
	* @param kEvent $event
	*/
	function OnContactFormSubmit(&$event)
	{
	$fields = Array (
	'ContactFormFullName', 'ContactFormEmail', 'ContactFormSubject', 'ContactFormBody', 'ContactFormCaptcha'
	);

	// reset errors var
	$this->Application->SetVar('ContactForm_HasErrors', '');

	// 1. validate form fields
	$required_fields = $this->Application->GetVar('FormRequiredFields');
	foreach ($fields as $field_name) {
	$field_value = trim($this->Application->GetVar($field_name));
	if (in_array($field_name, $required_fields)) {
	// custom captcha validation
	if ($field_name == 'ContactFormCaptcha') {
	if (!strlen($field_value) \|\| ($field_value != $this->Application->RecallVar($event->Prefix . '_captcha_code'))) {
	$this->Application->SetVar('error_'.$field_name, 1);

	$captcha_helper =& $this->Application->recallObject('CaptchaHelper');
	/* @var $captcha_helper kCaptchaHelper */
	$this->Application->StoreVar($event->Prefix . '_captcha_code', $captcha_helper->GenerateCaptchaCode());

	$event->status = kEvent::erFAIL;
	$event->redirect = false;
	}
	}
	// email validation
	elseif (!strlen($field_value) \|\| ($field_name == 'ContactFormEmail' && !preg_match('/'.REGEX_EMAIL_USER.'@'.REGEX_EMAIL_DOMAIN.'/', $field_value))) {
	$this->Application->SetVar('error_'.$field_name, 1);
	$event->status = kEvent::erFAIL;
	$event->redirect = false;
	}

	}
	}

	if ($event->status != kEvent::erSUCCESS) {
	// set errors var
	$this->Application->SetVar('ContactForm_HasErrors', 1);
	return ;
	}

	$object =& $event->getObject(); // get link object
	/* @var $object kDBItem */

	$send_params = Array(
	'from_name' => $this->Application->GetVar('ContactFormFullName'),
	'from_email' => $this->Application->GetVar('ContactFormEmail'),
	'from_subject' => $this->Application->GetVar('ContactFormSubject'),
	'message' => $this->Application->GetVar('ContactFormBody'),
	'to_linkname' => $object->GetField('Name'),
	);

	$email_event =& $this->Application->EmailEventUser('LINK.CONTACTFORM', $object->GetDBField('CreatedById'), $send_params);

	if ($email_event->status == kEvent::erSUCCESS) {
	$event->redirect = $this->Application->GetVar('success_template');

	$redirect_params = Array (
	'opener' => 's',
	'pass' => 'all',
	'thankyou_header' => $this->Application->GetVar('success_label_header'),
	'thankyou_text' => $this->Application->GetVar('success_label_body')
	);
	$event->setRedirectParams($redirect_params);

	$this->Application->EmailEventAdmin('LINK.CONTACTFORM', null, $send_params);
	}
	else {
	$this->Application->SetVar('error_ContactFormEmail', 1);
	$event->status = kEvent::erFAIL;
	$event->redirect = false;
	}
	}

	/**
	* Makes reciprocal check on link, when it is created
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnBeforeItemCreate(&$event)
	{
	parent::OnBeforeItemCreate($event);

	$this->_checkLink($event);
	}

	/**
	* Makes reciprocal check on link, when it is updated
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnBeforeItemUpdate(&$event)
	{
	parent::OnBeforeItemUpdate($event);

	$this->_checkLink($event);
	}

	/**
	* Makes reciprocal check on link & saves results
	*
	* @param kEvent $event
	*/
	function _checkLink(&$event)
	{
	if (!$this->Application->ConfigValue('ReciprocalLinkChecking')) {
	return ;
	}

	$object =& $event->getObject();
	/* @var $object kDBItem */

	if ($object->GetDBField('Url') != $object->GetOriginalField('Url')) {
	// check only when url was changed

	$link_helper =& $this->Application->recallObject('LinkHelper');
	/* @var $link_helper LinkHelper */

	$link_checked = $link_helper->CheckReciprocalURL($object->GetDBField('Url'));

	$object->SetDBField('ReciprocalLinkFound', $link_checked ? LINK_IS_RECIPROCAL : LINK_IS_NOT_RECIPROCAL);

	if (!$link_checked) {
	$this->Application->EmailEventAdmin('LINK.RECIPROCAL.CHECK.FAILED');
	}
	}
	}

	/**
	* Update links status by their reciprocal status
	*
	* @param kEvent $event
	*/
	function OnProcessReciprocalLinks(&$event)
	{
	if (!$this->Application->ConfigValue('ReciprocalLinkChecking')) {
	return ;
	}

	$object =& $event->getObject( Array('skip_autoload' => true) );
	/* @var $object kDBItem */

	$link_helper =& $this->Application->recallObject('LinkHelper');
	/* @var $link_helper LinkHelper */

	// 1. verify all links, that were not verified previously
	$sql = 'SELECT ' . $id_field . '
	FROM ' . $table_name . '
	WHERE (ReciprocalLinkFound = 0)';
	$not_checked_links = $this->Conn->GetCol($sql);

	foreach ($not_checked_links as $link_id) {
	$object->Load($link_id);

	$link_checked = $link_helper->CheckReciprocalURL($object->GetDBField('Url'));

	$object->SetDBField('ReciprocalLinkFound', $link_checked ? LINK_IS_RECIPROCAL : LINK_IS_NOT_RECIPROCAL);
	$object->Update();

	if ($link_checked) {
	$object->ApproveChanges();
	}
	else {
	$object->DeclineChanges();
	$this->Application->EmailEventAdmin('LINK.RECIPROCAL.CHECK.FAILED');
	}
	}

	// 2. approve all links, that have succeeded in reciprocal check (during adding/changing on front-end)
	$id_field = $this->Application->getUnitOption($event->Prefix, 'IDField');
	$table_name = $this->Application->getUnitOption($event->Prefix, 'TableName');

	$sql = 'SELECT ' . $id_field . '
	FROM ' . $table_name . '
	WHERE (ReciprocalLinkFound = ' . LINK_IS_RECIPROCAL . ') AND (Status <> ' . STATUS_ACTIVE . ')';
	$verified_links = $this->Conn->GetCol($sql);

	foreach ($verified_links as $link_id) {
	$object->Load($link_id);
	$object->ApproveChanges();
	}

	// 3. decline all links, that failed in reciprocal check (during adding/changing on front-end)
	$sql = 'SELECT ' . $id_field . '
	FROM ' . $table_name . '
	WHERE (ReciprocalLinkFound = ' . LINK_IS_NOT_RECIPROCAL . ') AND (Status <> ' . STATUS_DISABLED . ')';
	$not_verified_links = $this->Conn->GetCol($sql);

	foreach ($not_verified_links as $link_id) {
	$object->Load($link_id);
	$object->DeclineChanges();
	}
	}

	/**
	* Allows to load duplicate link by special id
	*
	* @param kEvent $event
	* @return int
	*/
	function getPassedID(&$event)
	{
	$id = parent::getPassedID($event);

	if (($event->Special == 'duplicates') && !is_numeric($id)) {
	$load_keys = unserialize( base64_decode($id) );
	// can't return $load_keys as $id, because "kCatDBItem::GetKeyClause" will ignore them

	foreach ($load_keys as $field => $value) {
	$load_keys[$field] = $field . ' = ' . $this->Conn->qstr($value);
	}

	$sql = 'SELECT ' . $this->Application->getUnitOption($event->Prefix, 'IDField') . '
	FROM ' . $this->Application->getUnitOption($event->Prefix, 'TableName') . '
	WHERE (' . implode(') AND (', $load_keys) . ')';
	$id = $this->Conn->GetOne($sql);
	}

	return $id;
	}

	/**
	* Returns events, that require item-based (not just event-name based) permission check
	*
	* @return Array
	*/
	function _getMassPermissionEvents()
	{
	$events = parent::_getMassPermissionEvents();
	$events[] = 'OnMerge';

	return $events;
	}

	/**
	* [HOOK] Allows to add cloned subitem to given prefix
	*
	* @param kEvent $event
	*/
	function OnCloneSubItem(&$event)
	{
	parent::OnCloneSubItem($event);

	if ($event->MasterEvent->Prefix == 'rev') {
	$clones = $this->Application->getUnitOption($event->MasterEvent->Prefix, 'Clones');
	$subitem_prefix = $event->Prefix . '-' . $event->MasterEvent->Prefix;

	$clones[$subitem_prefix]['ConfigMapping'] = Array (
	'PerPage' => 'Perpage_LinkReviews',
	'ShortListPerPage' => 'Perpage_LinkReviews_Short',
	'DefaultSorting1Field' => 'Link_ReviewsSort',
	'DefaultSorting2Field' => 'Link_ReviewsSort2',
	'DefaultSorting1Dir' => 'Link_ReviewsOrder',
	'DefaultSorting2Dir' => 'Link_ReviewsOrder2',

	'ReviewDelayInterval' => 'link_ReviewDelay_Interval',
	'ReviewDelayValue' => 'link_ReviewDelay_Value',
	);

	$this->Application->setUnitOption($event->MasterEvent->Prefix, 'Clones', $clones);
	}
	}
	}
	\ No newline at end of file
	Index: branches/5.2.x/units/listings/listings_event_handler.php
	===================================================================
	--- branches/5.2.x/units/listings/listings_event_handler.php (revision 14702)
	+++ branches/5.2.x/units/listings/listings_event_handler.php (revision 14703)
	@@ -1,830 +1,840 @@
	<?php
	/**
	* @version $Id$
	* @package In-Link
	* @copyright Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
	* @license GNU/GPL
	* In-Portal is Open Source software.
	* This means that this software may have been modified pursuant
	* the GNU General Public License, and as distributed it includes
	* or is derivative of works licensed under the GNU General Public License
	* or other free or open source software licenses.
	* See http://www.in-portal.org/license for copyright notices and details.
	*/

	defined('FULL_PATH') or die('restricted access!');

	class ListingsEventHandler extends kDBEventHandler {

	/**
	* Allows to override standard permission mapping
	*
	*/
	function mapPermissions()
	{
	parent::mapPermissions();
	$permissions = Array(
	// front
	'OnRequestEnhancement' => Array ('self' => true),
	'OnCancelEnhancement' => Array ('self' => true),
	'OnExtendEnhancement' => Array ('self' => true),

	);
	$this->permMapping = array_merge($this->permMapping, $permissions);
	}

	/**
	* Adds selected link to listing
	*
	* @param kEvent $event
	*/
	function OnProcessSelected(&$event)
	{
	$object =& $event->getObject();

	$selected_ids = $this->Application->GetVar('selected_ids');
	if ($selected_ids['l']) {
	$link_id = $selected_ids['l'];
	$sql = 'SELECT ResourceId
	FROM '.$this->Application->getUnitOption('l', 'TableName').'
	WHERE '.$this->Application->getUnitOption('l', 'IDField').' = '.$link_id;

	$object->SetDBField($this->Application->RecallVar('dst_field'), $this->Conn->GetOne($sql));
	$object->IgnoreValidation = true;
	// $this->RemoveRequiredFields($object);
	$object->Update();
	}

	$this->finalizePopup($event);
	}

	function OnPreSaveListing(&$event)
	{
	$event->redirect=false;
	$object =& $event->getObject( Array('skip_autoload' => true) );
	$object->IgnoreValidation = true;
	// $this->RemoveRequiredFields($object);
	$event->CallSubEvent('OnPreSave');
	$this->Application->SetVar($event->getPrefixSpecial(true).'_id', $object->GetId());
	return;
	}

	/**
	* Occurs before updating item
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnBeforeItemUpdate(&$event)
	{
	$object =& $event->getObject();
	/* @var $object kDBItem */

	if ( $object->IgnoreValidation ) {
	$object->UpdateFormattersMasterFields();
	}
	}

	/**
	* Occurs before creating item
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnBeforeItemCreate(&$event)
	{
	parent::OnBeforeItemCreate($event);

	$object =& $event->getObject();
	/* @var $object kDBItem */

	if ( $object->IgnoreValidation ) {
	$object->UpdateFormattersMasterFields();
	}
	}

	/**
	* Occurs before an item is deleted from live table when copying from temp
	* (temp handler deleted all items from live and then copy over all items from temp)
	* Id of item being deleted is passed as event' 'id' param
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnBeforeDeleteFromLive(&$event)
	{
	parent::OnBeforeDeleteFromLive($event);

	$object =& $event->getObject();
	/* @var $object kDBItem */

	$sql = 'SELECT *
	FROM ' . $this->Application->getUnitOption($event->Prefix, 'TableName') . '
	WHERE ListingId = ' . $object->GetId();
	$original_values = $this->Conn->GetRow($sql);

	$type_modified = ($object->GetDBField('ListingTypeId') != $original_values['ListingTypeId']);
	$link_modified = ($object->GetDBField('ItemResourceId') != $original_values['ItemResourceId']);
	$status_modified = ($object->GetDBField('Status') != $original_values['Status']);

	if ( $status_modified ) {
	$email_event = $object->GetDBField('Status') ? 'LINK.ENHANCE.APPROVE' : 'LINK.ENHANCE.DENY';
	$sql = 'SELECT CreatedById
	FROM ' . $this->Application->getUnitOption('l', 'TableName') . '
	WHERE ResourceId = ' . $object->GetDBField('ItemResourceId');
	$user_id = $this->Conn->GetOne($sql);

	$this->Application->EmailEventUser($email_event, $user_id);
	$this->Application->EmailEventAdmin($email_event);
	}

	if ( $type_modified \|\| $link_modified ) {
	$this->ResetLink($original_values);
	}

	if ( $status_modified \|\| $type_modified \|\| $link_modified ) {
	$this->EnhanceLink($object, $original_values);
	}

	if ( $status_modified && !($type_modified \|\| $link_modified) ) {
	$this->ResetLink($original_values);
	}
	}

	function EnhanceLink(&$object, $original_values)
	{
	if ($object->GetDBField('Status') != STATUS_ACTIVE) {
	return false;
	}

	if ($object->GetDBField('ExpiresOn') < adodb_mktime()) {
	$object->SetDBField('Status', STATUS_PENDING);
	$object->Update();
	$this->ResetLink($original_values);
	return false;
	}

	$this->UpdateLink('OnPurchase', $object->GetDBField('ItemResourceId'), $object->GetDBField('ListingTypeId'));

	$listtype_object =& $this->Application->recallObject('lst');
	if ( $listtype_object->GetDBField('OnPurchaseAddToCatEnabled') )
	{
	$link_object =& $this->Application->recallObject('l');
	$add_to_cat = (int)$listtype_object->GetDBField('OnPurchaseAddToCat');
	$sql = 'DELETE FROM '.$this->Application->getUnitOption('l-ci', 'TableName').'
	WHERE CategoryId = '.$add_to_cat.'
	AND ItemResourceId = '.$link_object->GetDBField('ResourceId').'
	AND PrimaryCat = 0';
	$this->Conn->Query($sql);
	$sql = 'INSERT INTO '.$this->Application->getUnitOption('l-ci', 'TableName').'
	(CategoryId, ItemResourceId, PrimaryCat)
	VALUES ('.$add_to_cat.', '.$link_object->GetDBField('ResourceId').', 0)';
	$this->Conn->Query($sql);
	}
	}

	function ResetLink($original_values)
	{
	static $has_been_reset = Array();

	if( $original_values['Status'] != STATUS_ACTIVE \|\|
	getArrayValue($has_been_reset, $original_values['ListingId']) )
	{
	return;
	}

	$has_been_reset[$original_values['ListingId']] = 1;

	$this->UpdateLink('OnExpire', $original_values['ItemResourceId'], $original_values['ListingTypeId']);

	$listtype_object =& $this->Application->recallObject('lst');
	if( $listtype_object->GetDBField('OnExpireRemoveFromCatEnabled') )
	{
	$remove_from_cat = $listtype_object->GetDBField('OnExpireRemoveFromCat');
	$sql = 'DELETE FROM '.$this->Application->getUnitOption('l-ci', 'TableName').'
	WHERE ItemResourceId = '.$original_values['ItemResourceId'].'
	AND CategoryId = '.$remove_from_cat.'
	AND PrimaryCat = 0';
	$this->Conn->Query($sql);
	}
	}

	function UpdateLink($action_prefix, $resource_id, $listtype_id)
	{

	$link_object =& $this->Application->recallObject('l', null, Array('skip_autoload' => true));
	$link_object->Load($resource_id, 'ResourceId');

	// "-item", because can be called as regular after event, and just "lst" recalls list instead
	$listtype_object =& $this->Application->recallObject('lst.-item', null, Array('skip_autoload' => true));
	$listtype_object->Load($listtype_id);

	$action_fields = Array( 'EdPick' => 'EditorsPick',
	'New' => 'NewItem',
	'Hot' => 'HotItem',
	'Pop' => 'PopItem',
	'Status' => 'Status',
	'CustomTemplate' => 'CustomTemplate',
	);
	// $action_prefix = 'OnPurchase';

	foreach($action_fields as $action => $field)
	{
	$action_value = $listtype_object->GetDBField($action_prefix.$action);
	if( $action_value != 3 )
	{
	$link_object->SetDBField($field, $action_value);
	}
	}

	$priority_value = $listtype_object->GetDBField($action_prefix.'PriorityValue');
	switch( $listtype_object->GetDBField($action_prefix.'PriorityAction') )
	{
	case 1: // equal
	$link_object->SetDBField('Priority', $priority_value);
	break;
	case 2: // increase
	$original_priority = $link_object->GetDBField('Priority');
	$link_object->SetDBField('Priority', $original_priority + $priority_value);
	break;
	case 3: // decrease
	$original_priority = $link_object->GetDBField('Priority');
	$link_object->SetDBField('Priority', $original_priority - $priority_value);
	break;
	default:
	}

	$link_object->Update();
	}

	/**
	* Enter description here...
	*
	* @param kEvent $event
	*/
	function OnRequestEnhancement(&$event)
	{
	if ($this->Application->isModuleEnabled('In-Commerce')) {
	$l_info = $this->Application->GetVar('l');
	if (!$l_info) {
	return false;
	}

	list ($link_id, $link_info) = each($l_info);
	$listing_type_id = $link_info['ListingTypeId'];

	$listing_type =& $this->Application->recallObject('lst', null, Array('skip_autoload' => true));
	$listing_type->Load($listing_type_id);

	if ($listing_type->GetDBField('EnableBuying')) {
	$add_to_cart_event = new kEvent('ord:OnAddVirtualProductToCart');
	$this->Application->HandleEvent($add_to_cart_event);

	if ($add_to_cart_event->redirect) {
	$event->SetRedirectParam('pass', 'm');
	$event->redirect = $add_to_cart_event->redirect;
	}
	return true;
	}
	}

	$event->CallSubEvent('OnListingCreate');
	}

	/**
	* Create listing or extend existing listing period
	*
	* @param kEvent $event
	*/
	function OnListingCreate(&$event)
	{
	+ $new_processing = false;
	+ $link_id = $listing_type_id = 0;
	+
	$object =& $event->getObject( Array('skip_autoload' => true) );
	+ /* @var $object kDBItem */

	switch ($event->Name) {
	case 'EnhanceLinkAfterOrderApprove':
	case 'EnhancedLinkOnCompleteOrder':
	// when order with listing virtual product is approved
	$fields = $event->getEventParam('field_values');
	$item_data = unserialize($fields['ItemData']);
	$listing_type_id = $item_data['ListingTypeId'];
	$link_id = $item_data['LinkId'];

	$new_processing = getArrayValue($item_data, 'HasNewProcessing');
	break;

	case 'OnListingCreate':
	// when requesting enhancement from front (and not via in-commerce)
	$links_info = $this->Application->GetVar('l');
	if (!$links_info) return false;

	$event->redirect = false;
	list($link_id, $link_info) = each($links_info);
	$listing_type_id = $link_info['ListingTypeId'];

	$new_processing = false;
	break;
	}

	if (!$listing_type_id) {
	// free or invalid listing type selected
	return false;
	}

	// get resource_id of link beeing enhanced
	$sql = 'SELECT ResourceId
	FROM '.$this->Application->getUnitOption('l', 'TableName').'
	WHERE LinkId = '.$link_id;
	$resource_id = $this->Conn->GetOne($sql);

	// get listing by link's resource_id
	$object->Load($resource_id, 'ItemResourceId');
	if ($object->isLoaded()) {
	$original_values = $object->GetFieldValues();
	}
	else {
	// set initial fields to listing
	$object->SetDBField('ListingTypeId', $listing_type_id);
	$object->SetDBField('ItemResourceId', $resource_id);

	if ($event->Name == 'OnListingCreate' \|\| $new_processing) {
	$item_status = STATUS_PENDING;
	}
	else {
	$item_status = STATUS_ACTIVE;
	}

	$object->SetDBField('Status', $item_status);
	}

	// set date of purchase for new listings
	$purchased_on = max(adodb_mktime(), $object->GetDBField('ExpiresOn'));
	if (!$object->isLoaded()) {
	$object->SetDBField('PurchasedOn_date', $purchased_on);
	$object->SetDBField('PurchasedOn_time', $purchased_on);
	}

	// set expiration time for listing
	$listing_type =& $this->Application->recallObject('lst', null, Array('skip_autoload' => true));
	$listing_type->Load($listing_type_id);

	$dur_type_mapping = Array( 1 => 1,
	2 => 60,
	3 => 3600,
	4 => 3600*24,
	5 => 3600247,
	6 => 360024365/12,
	7 => 360024365
	);
	$duration = $listing_type->GetDBField('Duration');
	$duration_type = $listing_type->GetDBField('DurationType');
	$expiration_interval = $duration * $dur_type_mapping[$duration_type];
	$expiration_date = $purchased_on + $expiration_interval;
	$object->SetDBField('ExpiresOn_date', $expiration_date);
	$object->SetDBField('ExpiresOn_time', $expiration_date);

	// when extending enhancement mark listing as non-received renewal reminder
	$object->SetDBField('RenewalReminderSent', 0);

	$action = $object->isLoaded() ? 'Update' : 'Create';
	if ($object->$action()) {
	$event->status = kEvent::erSUCCESS;
	switch ($event->Name) {
	case 'EnhanceLinkAfterOrderApprove':
	case 'EnhancedLinkOnCompleteOrder':
	// when order with listing virtual product is approved
	if (getArrayValue($original_values, 'Status') != STATUS_ACTIVE) {
	$this->EnhanceLink($object, Array());
	}
	break;

	case 'OnListingCreate':
	// when requesting enhancement from front (and not via in-commerce)
	$event->redirect = $this->Application->GetVar('success_template');

	$sql = 'SELECT CreatedById FROM '.$this->Application->getUnitOption('l', 'TableName').'
	WHERE ResourceId = '.$object->GetDBField('ItemResourceId');
	$email_event_user =& $this->Application->EmailEventUser('LINK.ENHANCE', $this->Conn->GetOne($sql));
	$email_event_admin =& $this->Application->EmailEventAdmin('LINK.ENHANCE');
	break;
	}


	}
	else {
	$event->status = kEvent::erFAIL;
	}


	}

	/**
	* Enter description here...
	*
	* @param kEvent $event
	*/
	function EnhancedLinkOnCompleteOrder(&$event)
	{
	// create enhancement, but pending
	$this->OnListingCreate($event);

	// save created listing_id back to itemdata
	$object =& $event->getObject( Array('skip_autoload' => true) );
	$fields = $event->getEventParam('field_values');
	$item_data = unserialize($fields['ItemData']);
	unset($item_data['ListingTypeId']);
	$item_data['ListingId'] = $object->GetID();

	$orditems_idfield = $this->Application->getUnitOption('orditems', 'IDField');
	$orditems_table = $this->Application->getUnitOption('orditems', 'TableName');

	$this->Conn->doUpdate( Array('ItemData' => serialize($item_data)), $orditems_table, $orditems_idfield.' = '.$fields['OrderItemId'] );
	}

	/**
	* Enter description here...
	*
	* @param kEvent $event
	*/
	function EnhanceLinkAfterOrderApprove(&$event)
	{
	$object =& $event->getObject( Array('skip_autoload' => true) );
	+ /* @var $object kDBItem */
	+
	$fields = $event->getEventParam('field_values');
	$item_data = unserialize($fields['ItemData']);

	if ( getArrayValue($item_data, 'HasNewProcessing') ) {
	// new processing: just approve created listing here
	$listing_id = $item_data['ListingId'];
	$object->Load($listing_id);

	// moved enhancement period to time admin approved enhancement
	$time_diff = adodb_mktime() - $object->GetDBField('PurchasedOn');
	$object->SetDBField('PurchasedOn_date', $object->GetDBField('PurchasedOn_date') + $time_diff);
	$object->SetDBField('PurchasedOn_time', $object->GetDBField('PurchasedOn_time') + $time_diff);
	$object->SetDBField('ExpiresOn_date', $object->GetDBField('ExpiresOn_date') + $time_diff);
	$object->SetDBField('ExpiresOn_time', $object->GetDBField('ExpiresOn_time') + $time_diff);

	$object->SetDBField('Status', STATUS_ACTIVE);
	$object->Update();

	$this->EnhanceLink($object, Array());
	return true;
	}
	else {
	// create listing & approve it at the same time
	$this->OnListingCreate($event);
	}
	}

	/**
	* Delete listing
	*
	* @param kEvent $event
	*/
	function EnhanceLinkAfterOrderDeny(&$event)
	{
	$object =& $event->getObject( Array('skip_autoload' => true) );
	$fields = $event->getEventParam('field_values');
	$item_data = unserialize($fields['ItemData']);
	$listing_id = $item_data['ListingId'];

	$temp_handler =& $this->Application->recallObject($event->getPrefixSpecial().'_TempHandler', 'kTempTablesHandler');
	$temp_handler->DeleteItems($event->Prefix, $event->Special, Array($listing_id));
	}

	/**
	* Enter description here...
	*
	* @param kEvent $event
	*/
	function ExpireLink(&$event)
	{
	- $object =& $event->getObject( Array('skip_autoload' => true) );
	+ $object =& $event->getObject(Array ('skip_autoload' => true));
	+ /* @var $object kDBItem */
	+
	$fields = $event->getEventParam('field_values');
	$item_data = unserialize($fields['ItemData']);
	- $sql = 'SELECT ListingId FROM '.$this->Application->getUnitOption($event->Prefix, 'TableName').'
	- WHERE ItemResourceId = '.$item_data['LinkId'];
	+
	+ $sql = 'SELECT ListingId FROM ' . $this->Application->getUnitOption($event->Prefix, 'TableName') . '
	+ WHERE ItemResourceId = ' . $item_data['LinkId'];
	$listing_id = $this->Conn->GetOne($sql);
	+
	$object->Load($listing_id);
	$original_values = $object->GetFieldValues();
	$object->SetDBField('Status', 2);

	- if($object->Update())
	- {
	+ if ( $object->Update() ) {
	$event->status = kEvent::erSUCCESS;
	$this->ResetLink($original_values);
	}
	- else
	- {
	+ else {
	$event->status = kEvent::erFAIL;
	}
	}

	/**
	* Apply same processing to each item being selected in grid
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function iterateItems(&$event)
	{
	$object =& $event->getObject(Array ('skip_autoload' => true));
	/* @var $object kDBItem */

	$ids = $this->StoreSelectedIDs($event);

	if ( $event->Name == 'OnMassApprove' ) {
	foreach ($ids as $id) {
	$object->Load($id);
	if ( $object->GetDBField('Status') != STATUS_ACTIVE ) {
	$original_values = $object->GetFieldValues();
	$object->SetDBField('Status', STATUS_ACTIVE);
	$this->EnhanceLink($object, $original_values);
	}
	}
	}

	if ( $event->Name == 'OnMassDecline' ) {
	foreach ($ids as $id) {
	$object->Load($id);
	if ( $object->GetDBField('Status') == STATUS_ACTIVE ) {
	$original_values = $object->GetFieldValues();
	$this->ResetLink($original_values);

	$sql = 'SELECT CreatedById
	FROM ' . $this->Application->getUnitOption('l', 'TableName') . '
	WHERE ResourceId = ' . $object->GetDBField('ItemResourceId');
	$email_event_user =& $this->Application->EmailEventUser('LINK.ENHANCE.DENY', $this->Conn->GetOne($sql));
	$email_event_admin =& $this->Application->EmailEventAdmin('LINK.ENHANCE.DENY');
	}
	}
	}

	parent::iterateItems($event);

	// extend period for pending/renewal links (if owner has agreed)
	if ( $event->Name == 'OnMassApprove' ) {
	$lst_object =& $this->Application->recallObject('lst', null, Array ('skip_autoload' => true));
	/* @var $lst_object kDBItem */

	foreach ($ids as $id) {
	$object->Load($id);

	$sql = 'SELECT CreatedById
	FROM ' . $this->Application->getUnitOption('l', 'TableName') . '
	WHERE ResourceId = ' . $object->GetDBField('ItemResourceId');
	$owner_id = $this->Conn->GetOne($sql);

	if ( $object->GetDBField('PendingRenewal') == 1 ) {
	$lst_object->Load( $object->GetDBField('ListingTypeId') );
	$dur_type_mapping = Array (
	1 => 1, 2 => 60, 3 => 3600, 4 => 3600 * 24, 5 => 3600 * 24 * 7,
	6 => 3600 * 24 * 365 / 12, 7 => 3600 * 24 * 365
	);
	$duration = $lst_object->GetDBField('Duration');
	$duration_type = $lst_object->GetDBField('DurationType');
	$expiration_interval = $duration * $dur_type_mapping[$duration_type];
	$renewal_begins = max(adodb_mktime(), $object->GetDBField('ExpiresOn'));
	$expiration_date = $renewal_begins + $expiration_interval;

	$object->SetDBField('ExpiresOn_date', $expiration_date);
	$object->SetDBField('ExpiresOn_time', $expiration_date);

	$object->SetDBField('RenewalReminderSent', 0);
	$object->SetDBField('PendingRenewal', 0);

	if ( $object->Update() ) {
	$event->status = kEvent::erSUCCESS;
	$event->setRedirectParams(Array ('opener' => 's'), true);
	$this->Application->EmailEventUser('LINK.ENHANCE.RENEW', $owner_id);
	$this->Application->EmailEventAdmin('LINK.ENHANCE.RENEW');
	}
	else {
	$event->status = kEvent::erFAIL;
	$event->redirect = false;
	break;
	}
	}
	else {
	$this->Application->EmailEventUser('LINK.ENHANCE.APPROVE', $owner_id);
	$this->Application->EmailEventAdmin('LINK.ENHANCE.APPROVE');
	}
	}
	}
	}

	/**
	* Redirects to cancel template on front-end
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnCancel(&$event)
	{
	parent::OnCancel($event);

	if ( !$this->Application->isAdmin ) {
	$event->SetRedirectParam('opener', 's');
	$event->redirect = $this->Application->GetVar('cancel_template');
	}
	}

	/**
	* Checks that user is owner of link & returns listing id if permissions are ok
	*
	* @param kEvent $event
	* @return mixed
	*/
	function verifyListingOwner(&$event)
	{
	$link_id = $this->Application->GetVar('l_id');
	$user_id = $this->Application->RecallVar('user_id');
	$sql = 'SELECT ResourceId
	FROM '.$this->Application->getUnitOption('l', 'TableName').'
	WHERE (LinkId = '.$link_id.') AND (CreatedById = '.$user_id.')';
	$resource_id = $this->Conn->GetOne($sql);

	if (!$resource_id) {
	$event->status = kEvent::erFAIL;
	return false;
	}

	$sql = 'SELECT ListingId
	FROM '.$this->Application->getUnitOption($event->Prefix, 'TableName').'
	WHERE ItemResourceId = '.$resource_id;

	return $this->Conn->GetOne($sql);
	}

	function OnExtendEnhancement(&$event)
	{
	$listing_id = $this->verifyListingOwner($event);
	if (!$listing_id) {
	return ;
	}

	$object =& $event->getObject( Array('skip_autoload' => true) );
	$object->Load($listing_id);

	$object->SetDBField('PendingRenewal', 1);
	$object->Update();
	$event->redirect = $this->Application->GetVar('success_template');

	$sql = 'SELECT CreatedById FROM '.$this->Application->getUnitOption('l', 'TableName').'
	WHERE ResourceId = '.$object->GetDBField('ItemResourceId');
	$email_event_user =& $this->Application->EmailEventUser('LINK.ENHANCE.EXTEND', $this->Conn->GetOne($sql));
	$email_event_admin =& $this->Application->EmailEventAdmin('LINK.ENHANCE.EXTEND');
	}

	/**
	* Cancels enhancement
	*
	* @param kEvent $event
	*/
	function OnCancelEnhancement(&$event)
	{
	$listing_id = $this->verifyListingOwner($event);
	- if (!$listing_id) {
	- return ;
	+ if ( !$listing_id ) {
	+ return;
	}

	- $object =& $event->getObject( Array('skip_autoload' => true) );
	+ $object =& $event->getObject(Array ('skip_autoload' => true));
	+ /* @var $object kDBItem */
	+
	$object->Load($listing_id);

	$original_values = $object->GetFieldValues();
	$original_values['Status'] = 1;
	$this->ResetLink($original_values);

	- $sql = 'SELECT CreatedById FROM '.$this->Application->getUnitOption('l', 'TableName').'
	- WHERE ResourceId = '.$object->GetDBField('ItemResourceId');
	- $email_event_user =& $this->Application->EmailEventUser('LINK.ENHANCE.CANCEL', $this->Conn->GetOne($sql));
	- $email_event_admin =& $this->Application->EmailEventAdmin('LINK.ENHANCE.CANCEL');
	+ $sql = 'SELECT CreatedById FROM ' . $this->Application->getUnitOption('l', 'TableName') . '
	+ WHERE ResourceId = ' . $object->GetDBField('ItemResourceId');
	+ $this->Application->EmailEventUser('LINK.ENHANCE.CANCEL', $this->Conn->GetOne($sql));
	+ $this->Application->EmailEventAdmin('LINK.ENHANCE.CANCEL');

	$object->Delete();
	$event->redirect = $this->Application->GetVar('success_template');
	}

	/**
	* Checks expired paid listings
	*
	* @param kEvent $event
	*/
	function OnCheckExpiredPaidListings(&$event)
	{
	$sql = 'SELECT ListingId FROM '.$this->Application->getUnitOption($event->Prefix, 'TableName').'
	WHERE ExpiresOn < '.adodb_mktime().' AND Status = 1';
	$expired_listings = $this->Conn->GetCol($sql);
	if(is_array($expired_listings) && count($expired_listings) > 0)
	{
	$object =& $this->Application->recallObject($event->Prefix.'.-item', null, Array('skip_autoload' => true));
	/* @var $object kDBItem */

	foreach($expired_listings as $listing_id)
	{
	$object->Load($listing_id);
	$original_values = $object->GetFieldValues();
	$this->ResetLink($original_values);
	$object->SetDBField('Status', 2);
	$object->Update();

	$sql = 'SELECT CreatedById FROM '.$this->Application->getUnitOption('l', 'TableName').'
	WHERE ResourceId = '.$object->GetDBField('ItemResourceId');
	$email_event_user =& $this->Application->EmailEventUser('LINK.ENHANCE.EXPIRE', $this->Conn->GetOne($sql));
	$email_event_admin =& $this->Application->EmailEventAdmin('LINK.ENHANCE.EXPIRE');
	}
	}

	$sql = 'SELECT ls.ListingId, l.CreatedById FROM '.$this->Application->getUnitOption($event->Prefix, 'TableName').' ls
	LEFT JOIN '.$this->Application->getUnitOption('lst', 'TableName').' lst
	ON ls.ListingTypeId = lst.ListingTypeId
	LEFT JOIN '.$this->Application->getUnitOption('l', 'TableName').' l
	ON ls.ItemResourceId = l.ResourceId
	WHERE ls.Status = 1
	AND ls.ExpiresOn < '.adodb_mktime().' + lst.RenewalReminder * 3600 *24
	AND ls.RenewalReminderSent = 0';
	$res = $this->Conn->Query($sql);
	if(is_array($res) && count($res) > 0)
	{
	$listing_ids = Array();
	foreach($res as $record)
	{
	$email_event_user =& $this->Application->EmailEventUser('LINK.ENHANCE.RENEWAL.NOTICE', $record['CreatedById']);
	$email_event_admin =& $this->Application->EmailEventAdmin('LINK.ENHANCE.RENEWAL.NOTICE');
	$listing_ids[] = $record['ListingId'];
	}
	$sql = 'UPDATE '.$this->Application->getUnitOption($event->Prefix, 'TableName').'
	SET RenewalReminderSent = 1
	WHERE ListingId IN ('.implode(',', $listing_ids).')';
	$this->Conn->Query($sql);
	}
	}

	/**
	* Removes enhancements on listing delete
	*
	* @param kEvent $event
	* @return void
	* @access protected
	*/
	protected function OnMassDelete(&$event)
	{
	- $object =& $event->getObject( Array ('skip_autoload' => true) );
	- /@var $object kDBItem /
	+ $object =& $event->getObject(Array ('skip_autoload' => true));
	+ /* @var $object kDBItem */

	$ids = $this->StoreSelectedIDs($event);

	foreach ($ids as $id) {
	$object->Load($id);

	if ( $object->GetDBField('Status') == STATUS_ACTIVE ) {
	$this->ResetLink( $object->GetFieldValues() );
	}
	}

	parent::OnMassDelete($event);
	}

	/**
	* Moves enhancement from original link to it's pending copy, that is going to be approved
	*
	* @param kEvent $event
	*/
	function OnMoveEnhancement(&$event)
	{
	$id_field = $this->Application->getUnitOption($event->MasterEvent->Prefix, 'IDField');
	$item_table_name = $this->Application->getUnitOption($event->MasterEvent->Prefix, 'TableName');

	$pending_id = $event->MasterEvent->getEventParam('id');
	$original_id = $event->MasterEvent->getEventParam('original_id');

	$sql = 'SELECT ResourceId, '.$id_field.'
	FROM '.$item_table_name.'
	WHERE '.$id_field.' IN ('.$pending_id.','.$original_id.')';
	$resource_ids = $this->Conn->GetCol($sql, $id_field);

	$table_name = $this->Application->getUnitOption($event->Prefix, 'TableName');
	$sql = 'UPDATE '.$table_name.'
	SET ItemResourceId = '.$resource_ids[$pending_id].'
	WHERE ItemResourceId = '.$resource_ids[$original_id];
	$this->Conn->Query($sql);
	}

	/**
	* Makes calcualated fields to go to multilingual link fields
	*
	* @param kEvent $event
	*/
	function OnAfterConfigRead(&$event)
	{
	parent::OnAfterConfigRead($event);

	$language_id = $this->Application->GetVar('m_lang');
	$calculated_fields = $this->Application->getUnitOption($event->Prefix, 'CalculatedFields');
	$calculated_fields['']['LinkName'] = 'CONCAT(item_table.l' . $language_id . '_Name, " (", item_table.Url, ")")';
	$this->Application->setUnitOption($event->Prefix, 'CalculatedFields', $calculated_fields);
	}
	}
	\ No newline at end of file
	Index: branches/5.2.x/install/prerequisites.php
	===================================================================
	--- branches/5.2.x/install/prerequisites.php (revision 14702)
	+++ branches/5.2.x/install/prerequisites.php (revision 14703)
	@@ -1,79 +1,81 @@
	<?php
	/**
	* @version $Id$
	* @package In-Link
	* @copyright Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
	* @license GNU/GPL
	* In-Portal is Open Source software.
	* This means that this software may have been modified pursuant
	* the GNU General Public License, and as distributed it includes
	* or is derivative of works licensed under the GNU General Public License
	* or other free or open source software licenses.
	* See http://www.in-portal.org/license for copyright notices and details.
	*/

	defined('FULL_PATH') or die('restricted access!');

	$prerequisite_class = 'InLinkPrerequisites';

	/**
	* Class, that holds all prerequisite scripts for "In-Link" module
	*
	*/
	class InLinkPrerequisites extends kHelper {

	/**
	* Install toolkit instance
	*
	* @var kInstallToolkit
	*/
	var $_toolkit = null;

	/**
	* Sets common instance of installator toolkit
	*
	* @param kInstallToolkit $instance
	*/
	function setToolkit(&$instance)
	{
	$this->_toolkit =& $instance;
	}

	/**
	* Checks minimal version, that could be upgradeable
	*
	- * @param string $mode when called mode {install, standalone, upgrade)
	+ * @param Array $versions
	+ * @param string $mode when called mode {install, upgrade, standalone)
	+ * @return Array
	*/
	function CheckPrerequisites($versions, $mode)
	{
	$errors = Array ();

	if ($mode == 'standalone') {
	if (!$this->Application->isModuleEnabled('In-Portal')) {
	$errors[] = 'Please install or enable "In-Portal" module first';
	}
	}

	if ($mode == 'upgrade') {
	$sql = 'SELECT Version
	FROM ' . TABLE_PREFIX . 'Modules
	WHERE Name = "In-Portal"';
	$inportal_version = $this->Conn->GetOne($sql);

	if ($inportal_version === false) {
	// only, when In-Portal was installed
	return $errors;
	}

	$min_version = '4.3.1';

	$current_version = $this->_toolkit->ConvertModuleVersion($inportal_version);
	$needed_version = $this->_toolkit->ConvertModuleVersion($min_version);
	if ($current_version < $needed_version) {
	$errors[] = 'Please upgrade "In-Portal" to version ' . $min_version;
	}
	}

	return $errors;
	}
	}
	\ No newline at end of file

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