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/home/develito/public_html/components/com_tlpteam/models/teams.php

<?php
/**
 * @version     1.0.0
 * @package     com_tlpteam
 * @copyright   Copyright (C) 2013. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 * @author      TechLabPro <techlabpro@gmail.com> - http://www.techlabpro.com
 */
defined('_JEXEC') or die;

jimport('joomla.application.component.modellist');

/**
 * Methods supporting a list of Tlpteam records.
 */
class TlpteamModelTeams extends JModelList
{

/**
	 * Constructor.
	 *
	 * @param    array    An optional associative array of configuration settings.
	 *
	 * @see        JController
	 * @since      1.6
	 */
	public function __construct($config = array())
	{
		if (empty($config['filter_fields']))
		{
			$config['filter_fields'] = array(
				'id', 'a.id',
                'name', 'a.name',
                'position', 'a.position',
                'profile_image', 'a.profile_image',
                'email', 'a.email',
                'phone', 'a.phone',
                'short_bio', 'a.short_bio',
                'detail_bio', 'a.detail_bio',
                'facebook', 'a.facebook',
                'twitter', 'a.twitter',
                'linkedin', 'a.linkedin',
                'web', 'a.web',
                'ordering', 'a.ordering',
                'state', 'a.state',
                'created_by', 'a.created_by',

);
		}
		parent::__construct($config);
	}

/**
	 * Method to auto-populate the model state.
	 *
	 * Note. Calling getState in this method will result in recursion.
	 *
	 * @since    1.6
	 */
	protected function populateState($ordering = null, $direction = null)
	{

// Initialise variables.
		$app = JFactory::getApplication();

// List state information
		$limit = $app->getUserStateFromRequest('global.list.limit', 'limit', $app->getCfg('list_limit'));
		$this->setState('list.limit', $limit);

$limitstart = $app->input->getInt('limitstart', 0);
		$this->setState('list.start', $limitstart);

if ($list = $app->getUserStateFromRequest($this->context . '.list', 'list', array(), 'array'))
		{
			foreach ($list as $name => $value)
			{
				// Extra validations
				switch ($name)
				{
					case 'fullordering':
						$orderingParts = explode(' ', $value);

if (count($orderingParts) >= 2)
						{
							// Latest part will be considered the direction
							$fullDirection = end($orderingParts);

if (in_array(strtoupper($fullDirection), array('ASC', 'DESC', '')))
							{
								$this->setState('list.direction', $fullDirection);
							}

unset($orderingParts[count($orderingParts) - 1]);

// The rest will be the ordering
							$fullOrdering = implode(' ', $orderingParts);

if (in_array($fullOrdering, $this->filter_fields))
							{
								$this->setState('list.ordering', $fullOrdering);
							}
						}
						else
						{
							$this->setState('list.ordering', $ordering);
							$this->setState('list.direction', $direction);
						}
						break;

case 'ordering':
						if (!in_array($value, $this->filter_fields))
						{
							$value = $ordering;
						}
						break;

case 'direction':
						if (!in_array(strtoupper($value), array('ASC', 'DESC', '')))
						{
							$value = $direction;
						}
						break;

case 'limit':
						$limit = $value;
						break;

// Just to keep the default case
					default:
						$value = $value;
						break;
				}

$this->setState('list.' . $name, $value);
			}
		}

// Receive & set filters
		if ($filters = $app->getUserStateFromRequest($this->context . '.filter', 'filter', array(), 'array'))
		{
			foreach ($filters as $name => $value)
			{
				$this->setState('filter.' . $name, $value);
			}
		}

$ordering = $app->input->get('filter_order');
		if (!empty($ordering))
		{
			$list             = $app->getUserState($this->context . '.list');
			$list['ordering'] = $app->input->get('filter_order');
			$app->setUserState($this->context . '.list', $list);
		}

$orderingDirection = $app->input->get('filter_order_Dir');
		if (!empty($orderingDirection))
		{
			$list              = $app->getUserState($this->context . '.list');
			$list['direction'] = $app->input->get('filter_order_Dir');
			$app->setUserState($this->context . '.list', $list);
		}

$list = $app->getUserState($this->context . '.list');

if (empty($list['ordering']))
{
	$list['ordering'] = 'ordering';
}

if (empty($list['direction']))
{
	$list['direction'] = 'asc';
}

$this->setState('list.ordering', $list['ordering']);
		$this->setState('list.direction', $list['direction']);
	}

/**
	 * Build an SQL query to load the list data.
	 *
	 * @return    JDatabaseQuery
	 * @since    1.6
	 */
	protected function getListQuery()
	{
		// Create a new query object.
		$db    = $this->getDbo();
		$query = $db->getQuery(true);

// Select the required fields from the table.
		$query
			->select(
				$this->getState(
					'list.select', 'DISTINCT a.*'
				)
			);

$query->from('`#__tlpteam_team` AS a');

// Join over the users for the checked out user.
    $query->select('uc.name AS editor');
    $query->join('LEFT', '#__users AS uc ON uc.id=a.checked_out');
    
		// Join over the created by field 'created_by'
		$query->join('LEFT', '#__users AS created_by ON created_by.id = a.created_by');

$query->where('a.state = 1');

// Filter by search in title
		$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, true) . '%');
				$query->where('( a.name LIKE '.$search.'  OR  a.short_bio LIKE '.$search.'  OR  a.detail_bio LIKE '.$search.' )');
			}
		}

// Add the list ordering clause.
		$orderCol  = $this->state->get('list.ordering');
		$orderDirn = $this->state->get('list.direction');
		if ($orderCol && $orderDirn)
		{
			$query->order($db->escape($orderCol . ' ' . $orderDirn));
		}

return $query;
	}

public function getItems()
	{
		$items = parent::getItems();

return $items;
	}

/**
	 * Overrides the default function to check Date fields format, identified by
	 * "_dateformat" suffix, and erases the field if it's not correct.
	 */
	protected function loadFormData()
	{
		$app              = JFactory::getApplication();
		$filters          = $app->getUserState($this->context . '.filter', array());
		$error_dateformat = false;
		foreach ($filters as $key => $value)
		{
			if (strpos($key, '_dateformat') && !empty($value) && !$this->isValidDate($value))
			{
				$filters[$key]    = '';
				$error_dateformat = true;
			}
		}
		if ($error_dateformat)
		{
			$app->enqueueMessage(JText::_("COM_PRUEBA_SEARCH_FILTER_DATE_FORMAT"), "warning");
			$app->setUserState($this->context . '.filter', $filters);
		}

return parent::loadFormData();
	}

/**
	 * Checks if a given date is valid and in an specified format (YYYY-MM-DD)
	 *
	 * @param string Contains the date to be checked
	 *
	 */
	private function isValidDate($date)
	{
		return preg_match("/^(19|20)\d\d[-](0[1-9]|1[012])[-](0[1-9]|[12][0-9]|3[01])$/", $date) && date_create($date);
	}

}