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<?php
/**
* @title Minitek FAQ Book
* @copyright Copyright (C) 2011-2020 Minitek, All rights reserved.
* @license GNU General Public License version 3 or later.
* @author url https://www.minitek.gr/
* @developers Minitek.gr
*/
defined('_JEXEC') or die;
JFormHelper::loadFieldClass('list');
/**
* Form Field class for the Joomla Framework.
*
* @since 1.6
*/
class JFormFieldTopicId extends JFormFieldList
{
/**
* A flexible topic list that respects access controls
*
* @var string
* @since 1.6
*/
public $type = 'TopicId';
/**
* Method to get a list of topics that respects access controls and can be used for
* either topic assignment or parent topic assignment in edit screens.
* Use the parent element to indicate that the field will be used for assigning parent topics.
*
* @return array The field option objects.
*
* @since 1.6
*/
protected function getOptions()
{
$options = array();
$published = $this->element['published'] ? $this->element['published'] : array(0, 1);
$name = (string) $this->element['name'];
$jinput = JFactory::getApplication()->input;
// Get the current user object.
$user = JFactory::getUser();
// Get permissions
if (JFactory::getApplication()->isSite())
{
JLoader::registerPrefix('FAQBookProLib', JPATH_SITE .DS. 'components' .DS. 'com_faqbookpro' .DS. 'libraries');
$canDo = FAQBookProLibUtilities::getActions('com_faqbookpro', 'question', $jinput->get('id', '0'));
}
// Let's get the id for the current topic.
// For topics the old topic is the topic id or 0 for new topic.
if ($this->element['parent'])
{
$oldCat = $jinput->get('id', 0);
$oldParent = $this->form->getValue($name, 0);
}
// For items the old topic is the topic they are in when opened or 0 if new.
else
{
$oldCat = $this->form->getValue($name, 0);
}
$db = JFactory::getDbo();
$query = $db->getQuery(true)
->select('DISTINCT a.id AS value, a.title AS text, a.level, a.published, a.lft, a.qvisibility, a.section_id, s.title AS section_title');
$subQuery = $db->getQuery(true)
->select('id,title,level,published,parent_id,lft,rgt,qvisibility,section_id')
->from('#__minitek_faqbook_topics');
$subQuery->where('level > 0');
if ($this->element['parent'] == true)
{
$subQuery->where('parent_id = 0');
}
// Filter language
if (!empty($this->element['language']))
{
$subQuery->where('language = ' . $db->quote($this->element['language']));
}
// Filter on the published state
if (JFactory::getApplication()->isSite())
{
// If user can edit state
if ($canDo->get('core.edit.state'))
{
if (is_numeric($published))
{
$subQuery->where('published = ' . (int) $published);
}
elseif (is_array($published))
{
JArrayHelper::toInteger($published);
$subQuery->where('published IN (' . implode(',', $published) . ')');
}
}
else
{
$subQuery->where('published = 1');
}
}
else
{
if (is_numeric($published))
{
$subQuery->where('published = ' . (int) $published);
}
elseif (is_array($published))
{
JArrayHelper::toInteger($published);
$subQuery->where('published IN (' . implode(',', $published) . ')');
}
}
// Filter by qvisibility and permissions (users without permissions to create private cannot select/see topics of private only questions
if ($jinput->get('view') == 'question' || $jinput->get('view') == 'myquestion')
{
if (JFactory::getApplication()->isSite())
{
// If user can not edit state
if (!$canDo->get('core.edit.state'))
{
// Show only topics that belong to current section
$subQuery->where('section_id = '. (int)$jinput->get('section'));
}
}
// Check if there is a topic id in the url (pre-select topic in question form)
if ((int)$jinput->get('topicid'))
{
if (!$user->authorise('core.private.create', 'com_faqbookpro.topic.' . (int)$jinput->get('topicid')))
{
$subQuery->where('qvisibility IN (0,1)');
}
}
}
$query->from('(' . $subQuery->__toString() . ') AS a')
->join('LEFT', $db->quoteName('#__minitek_faqbook_topics') . ' AS b ON a.lft > b.lft AND a.rgt < b.rgt');
$query->order('a.lft ASC');
// Left join for section titles
$query->join('LEFT', $db->quoteName('#__minitek_faqbook_sections') . ' AS s ON s.id = a.section_id');
// Filter by sections - Questions menu item
$app = JFactory::getApplication();
if ($app->isClient('site'))
{
$params = $app->getParams('com_faqbookpro');
if ($sections = $params->get('filter_sections', []))
{
JArrayHelper::toInteger($sections);
$sections = implode(',', $sections);
$query->where('s.id IN ('.$sections.')');
}
}
// If parent isn't explicitly stated but we are in com_faqbookpro assume we want parents
if ($oldCat != 0 && ($this->element['parent'] == true))
{
// Prevent parenting to children of this item.
// To rearrange parents and children move the children up, not the parents down.
$query->join('LEFT', $db->quoteName('#__minitek_faqbook_topics') . ' AS p ON p.id = ' . (int) $oldCat)
->where('NOT(a.lft >= p.lft AND a.rgt <= p.rgt)');
$rowQuery = $db->getQuery(true);
$rowQuery->select('a.id AS value, a.title AS text, a.level, a.parent_id')
->from('#__minitek_faqbook_topics AS a')
->where('a.id = ' . (int) $oldCat);
$db->setQuery($rowQuery);
$row = $db->loadObject();
}
// Get the options.
$db->setQuery($query);
try
{
$options = $db->loadObjectList();
}
catch (RuntimeException $e)
{
JError::raiseWarning(500, $e->getMessage());
}
// Pad the option text with spaces using depth level as a multiplier.
for ($i = 0, $n = count($options); $i < $n; $i++)
{
// Translate ROOT
if ($this->element['parent'] == true)
{
if ($options[$i]->level == 0)
{
$options[$i]->text = JText::_('JGLOBAL_ROOT_PARENT');
}
}
if ($options[$i]->published == 1)
{
$options[$i]->text = str_repeat('- ', $options[$i]->level) . $options[$i]->text;
if ($options[$i]->section_title
&& (JFactory::getApplication()->isAdmin() || (JFactory::getApplication()->isSite() && $canDo->get('core.edit.state')))
)
{
$options[$i]->text .= ' ('.$options[$i]->section_title.')';
}
}
else
{
$options[$i]->text = str_repeat('- ', $options[$i]->level) . '[' . $options[$i]->text;
if ($options[$i]->section_title
&& (JFactory::getApplication()->isAdmin() || (JFactory::getApplication()->isSite() && $canDo->get('core.edit.state')))
)
{
$options[$i]->text .= ' ('.$options[$i]->section_title.')';
}
$options[$i]->text .= ']';
}
}
// For new items we want a list of topics you are allowed to create in.
if ($oldCat == 0)
{
foreach ($options as $i => $option)
{
/* To take save or create in a topic you need to have create rights for that topic
* unless the item is already in that topic.
* Unset the option if the user isn't authorised for it. In this field assets are always topics.
*/
if ($user->authorise('core.create', 'com_faqbookpro.topic.' . $option->value) != true && $option->level != 0)
{
unset($options[$i]);
}
if ($option->qvisibility == '2' && $user->authorise('core.private.create', 'com_faqbookpro.topic.' . $option->value) != true && $option->level != 0)
{
unset($options[$i]);
}
}
}
// If you have an existing topic id things are more complex.
else
{
/* If you are only allowed to edit in this topic but not edit.state, you should not get any
* option to change the topic parent for a topic or the topic for a question,
* but you should be able to save in that topic.
*/
foreach ($options as $i => $option)
{
if ($user->authorise('core.edit.state', 'com_faqbookpro.topic.' . $oldCat) != true && !isset($oldParent))
{
if ($option->value != $oldCat)
{
unset($options[$i]);
}
}
if ($user->authorise('core.edit.state', 'com_faqbookpro.topic.' . $oldCat) != true
&& (isset($oldParent))
&& $option->value != $oldParent)
{
unset($options[$i]);
}
// However, if you can edit.state you can also move this to another topic for which you have
// create permission and you should also still be able to save in the current topic.
if (($user->authorise('core.create', 'com_faqbookpro.topic.' . $option->value) != true)
&& ($option->value != $oldCat && !isset($oldParent)))
{
{
unset($options[$i]);
}
}
if (($user->authorise('core.create', 'com_faqbookpro.topic.' . $option->value) != true)
&& (isset($oldParent))
&& $option->value != $oldParent)
{
{
unset($options[$i]);
}
}
if ($option->qvisibility == '2' && $user->authorise('core.private.create', 'com_faqbookpro.topic.' . $option->value) != true)
{
unset($options[$i]);
}
}
}
if (($this->element['parent'] == true)
&& (isset($row) && !isset($options[0]))
&& isset($this->element['show_root']))
{
if ($row->parent_id == '1')
{
$parent = new stdClass;
$parent->text = JText::_('JGLOBAL_ROOT_PARENT');
array_unshift($options, $parent);
}
array_unshift($options, JHtml::_('select.option', '0', JText::_('JGLOBAL_ROOT')));
}
// Add -select- option for front-end form
if ($app->isClient('site'))
{
if ($jinput->get('view') == 'myquestion' && !$jinput->getInt('topicid', false) && !$jinput->getInt('id', false))
{
array_unshift($options, JHtml::_('select.option', '', JText::_('JSELECT')));
}
}
// Add -select- option for back-end form
if ($app->isAdmin())
{
if ($jinput->get('view') == 'question')
{
array_unshift($options, JHtml::_('select.option', '', JText::_('COM_FAQBOOKPRO_OPTION_SELECT_TOPIC')));
}
}
// Merge any additional options in the XML definition.
$options = array_merge(parent::getOptions(), $options);
return $options;
}
}