Questions-and-Answers/admin/models/questions_and_answers.php

408 lines
12 KiB
PHP

<?php
/*--------------------------------------------------------------------------------------------------------| www.vdm.io |------/
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/-------------------------------------------------------------------------------------------------------------------------------/
@version 1.0.x
@build 4th April, 2019
@created 30th January, 2017
@package Questions and Answers
@subpackage questions_and_answers.php
@author Llewellyn van der Merwe <https://www.vdm.io/>
@copyright Copyright (C) 2015. All Rights Reserved
@license GNU/GPL Version 2 or later - http://www.gnu.org/licenses/gpl-2.0.html
Questions &amp; Answers
/-----------------------------------------------------------------------------------------------------------------------------*/
// No direct access to this file
defined('_JEXEC') or die('Restricted access');
/**
* Questions_and_answers Model
*/
class QuestionsanswersModelQuestions_and_answers extends JModelList
{
public function __construct($config = array())
{
if (empty($config['filter_fields']))
{
$config['filter_fields'] = array(
'a.id','id',
'a.published','published',
'a.ordering','ordering',
'a.created_by','created_by',
'a.modified_by','modified_by',
'a.question','question',
'a.answer','answer'
);
}
parent::__construct($config);
}
/**
* Method to auto-populate the model state.
*
* @return void
*/
protected function populateState($ordering = null, $direction = null)
{
$app = JFactory::getApplication();
// Adjust the context to support modal layouts.
if ($layout = $app->input->get('layout'))
{
$this->context .= '.' . $layout;
}
$question = $this->getUserStateFromRequest($this->context . '.filter.question', 'filter_question');
$this->setState('filter.question', $question);
$answer = $this->getUserStateFromRequest($this->context . '.filter.answer', 'filter_answer');
$this->setState('filter.answer', $answer);
$sorting = $this->getUserStateFromRequest($this->context . '.filter.sorting', 'filter_sorting', 0, 'int');
$this->setState('filter.sorting', $sorting);
$access = $this->getUserStateFromRequest($this->context . '.filter.access', 'filter_access', 0, 'int');
$this->setState('filter.access', $access);
$search = $this->getUserStateFromRequest($this->context . '.filter.search', 'filter_search');
$this->setState('filter.search', $search);
$published = $this->getUserStateFromRequest($this->context . '.filter.published', 'filter_published', '');
$this->setState('filter.published', $published);
$created_by = $this->getUserStateFromRequest($this->context . '.filter.created_by', 'filter_created_by', '');
$this->setState('filter.created_by', $created_by);
$created = $this->getUserStateFromRequest($this->context . '.filter.created', 'filter_created');
$this->setState('filter.created', $created);
// List state information.
parent::populateState($ordering, $direction);
}
/**
* Method to get an array of data items.
*
* @return mixed An array of data items on success, false on failure.
*/
public function getItems()
{
// check in items
$this->checkInNow();
// load parent items
$items = parent::getItems();
// set values to display correctly.
if (QuestionsanswersHelper::checkArray($items))
{
foreach ($items as $nr => &$item)
{
$access = (JFactory::getUser()->authorise('question_and_answer.access', 'com_questionsanswers.question_and_answer.' . (int) $item->id) && JFactory::getUser()->authorise('question_and_answer.access', 'com_questionsanswers'));
if (!$access)
{
unset($items[$nr]);
continue;
}
}
}
// return items
return $items;
}
/**
* Method to build an SQL query to load the list data.
*
* @return string An SQL query
*/
protected function getListQuery()
{
// Get the user object.
$user = JFactory::getUser();
// Create a new query object.
$db = JFactory::getDBO();
$query = $db->getQuery(true);
// Select some fields
$query->select('a.*');
$query->select($db->quoteName('c.title','category_title'));
// From the questionsanswers_item table
$query->from($db->quoteName('#__questionsanswers_question_and_answer', 'a'));
$query->join('LEFT', $db->quoteName('#__categories', 'c') . ' ON (' . $db->quoteName('a.catid') . ' = ' . $db->quoteName('c.id') . ')');
// Filter by published state
$published = $this->getState('filter.published');
if (is_numeric($published))
{
$query->where('a.published = ' . (int) $published);
}
elseif ($published === '')
{
$query->where('(a.published = 0 OR a.published = 1)');
}
// Join over the asset groups.
$query->select('ag.title AS access_level');
$query->join('LEFT', '#__viewlevels AS ag ON ag.id = a.access');
// Filter by access level.
if ($access = $this->getState('filter.access'))
{
$query->where('a.access = ' . (int) $access);
}
// Implement View Level Access
if (!$user->authorise('core.options', 'com_questionsanswers'))
{
$groups = implode(',', $user->getAuthorisedViewLevels());
$query->where('a.access IN (' . $groups . ')');
}
// Filter by search.
$search = $this->getState('filter.search');
if (!empty($search))
{
if (stripos($search, 'id:') === 0)
{
$query->where('a.id = ' . (int) substr($search, 3));
}
else
{
$search = $db->quote('%' . $db->escape($search) . '%');
$query->where('(a.question LIKE '.$search.' OR a.answer LIKE '.$search.' OR a.catid LIKE '.$search.')');
}
}
// Filter by a single or group of categories.
$baselevel = 1;
$categoryId = $this->getState('filter.category_id');
if (is_numeric($categoryId))
{
$cat_tbl = JTable::getInstance('Category', 'JTable');
$cat_tbl->load($categoryId);
$rgt = $cat_tbl->rgt;
$lft = $cat_tbl->lft;
$baselevel = (int) $cat_tbl->level;
$query->where('c.lft >= ' . (int) $lft)
->where('c.rgt <= ' . (int) $rgt);
}
elseif (is_array($categoryId))
{
JArrayHelper::toInteger($categoryId);
$categoryId = implode(',', $categoryId);
$query->where('a.category IN (' . $categoryId . ')');
}
// Add the list ordering clause.
$orderCol = $this->state->get('list.ordering', 'a.id');
$orderDirn = $this->state->get('list.direction', 'asc');
if ($orderCol != '')
{
$query->order($db->escape($orderCol . ' ' . $orderDirn));
}
return $query;
}
/**
* Method to get list export data.
*
* @return mixed An array of data items on success, false on failure.
*/
public function getExportData($pks)
{
// setup the query
if (QuestionsanswersHelper::checkArray($pks))
{
// Set a value to know this is exporting method.
$_export = true;
// Get the user object.
$user = JFactory::getUser();
// Create a new query object.
$db = JFactory::getDBO();
$query = $db->getQuery(true);
// Select some fields
$query->select('a.*');
// From the questionsanswers_question_and_answer table
$query->from($db->quoteName('#__questionsanswers_question_and_answer', 'a'));
$query->where('a.id IN (' . implode(',',$pks) . ')');
// Implement View Level Access
if (!$user->authorise('core.options', 'com_questionsanswers'))
{
$groups = implode(',', $user->getAuthorisedViewLevels());
$query->where('a.access IN (' . $groups . ')');
}
// Order the results by ordering
$query->order('a.ordering ASC');
// Load the items
$db->setQuery($query);
$db->execute();
if ($db->getNumRows())
{
$items = $db->loadObjectList();
// Get the basic encryption key.
$basickey = QuestionsanswersHelper::getCryptKey('basic');
// Get the encryption object.
$basic = new FOFEncryptAes($basickey);
// set values to display correctly.
if (QuestionsanswersHelper::checkArray($items))
{
foreach ($items as $nr => &$item)
{
$access = (JFactory::getUser()->authorise('question_and_answer.access', 'com_questionsanswers.question_and_answer.' . (int) $item->id) && JFactory::getUser()->authorise('question_and_answer.access', 'com_questionsanswers'));
if (!$access)
{
unset($items[$nr]);
continue;
}
if ($basickey && !is_numeric($item->answer_documents) && $item->answer_documents === base64_encode(base64_decode($item->answer_documents, true)))
{
// decrypt answer_documents
$item->answer_documents = $basic->decryptString($item->answer_documents);
}
if ($basickey && !is_numeric($item->main_image) && $item->main_image === base64_encode(base64_decode($item->main_image, true)))
{
// decrypt main_image
$item->main_image = $basic->decryptString($item->main_image);
}
// unset the values we don't want exported.
unset($item->asset_id);
unset($item->checked_out);
unset($item->checked_out_time);
}
}
// Add headers to items array.
$headers = $this->getExImPortHeaders();
if (QuestionsanswersHelper::checkObject($headers))
{
array_unshift($items,$headers);
}
return $items;
}
}
return false;
}
/**
* Method to get header.
*
* @return mixed An array of data items on success, false on failure.
*/
public function getExImPortHeaders()
{
// Get a db connection.
$db = JFactory::getDbo();
// get the columns
$columns = $db->getTableColumns("#__questionsanswers_question_and_answer");
if (QuestionsanswersHelper::checkArray($columns))
{
// remove the headers you don't import/export.
unset($columns['asset_id']);
unset($columns['checked_out']);
unset($columns['checked_out_time']);
$headers = new stdClass();
foreach ($columns as $column => $type)
{
$headers->{$column} = $column;
}
return $headers;
}
return false;
}
/**
* Method to get a store id based on model configuration state.
*
* @return string A store id.
*
*/
protected function getStoreId($id = '')
{
// Compile the store id.
$id .= ':' . $this->getState('filter.id');
$id .= ':' . $this->getState('filter.search');
$id .= ':' . $this->getState('filter.published');
$id .= ':' . $this->getState('filter.ordering');
$id .= ':' . $this->getState('filter.created_by');
$id .= ':' . $this->getState('filter.modified_by');
$id .= ':' . $this->getState('filter.question');
$id .= ':' . $this->getState('filter.answer');
return parent::getStoreId($id);
}
/**
* Build an SQL query to checkin all items left checked out longer then a set time.
*
* @return a bool
*
*/
protected function checkInNow()
{
// Get set check in time
$time = JComponentHelper::getParams('com_questionsanswers')->get('check_in');
if ($time)
{
// Get a db connection.
$db = JFactory::getDbo();
// reset query
$query = $db->getQuery(true);
$query->select('*');
$query->from($db->quoteName('#__questionsanswers_question_and_answer'));
$db->setQuery($query);
$db->execute();
if ($db->getNumRows())
{
// Get Yesterdays date
$date = JFactory::getDate()->modify($time)->toSql();
// reset query
$query = $db->getQuery(true);
// Fields to update.
$fields = array(
$db->quoteName('checked_out_time') . '=\'0000-00-00 00:00:00\'',
$db->quoteName('checked_out') . '=0'
);
// Conditions for which records should be updated.
$conditions = array(
$db->quoteName('checked_out') . '!=0',
$db->quoteName('checked_out_time') . '<\''.$date.'\''
);
// Check table
$query->update($db->quoteName('#__questionsanswers_question_and_answer'))->set($fields)->where($conditions);
$db->setQuery($query);
$db->execute();
}
}
return false;
}
}