protected function filterMenu($intFilterPanel)
	{
		/** @var AttributeBagInterface $objSessionBag */
		$objSessionBag = System::getContainer()->get('session')->getBag('contao_backend');

		$fields = '';
		$sortingFields = array();
		$session = $objSessionBag->all();
		$filter = ($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['mode'] == 4) ? $this->strTable.'_'.CURRENT_ID : $this->strTable;

		// Get the sorting fields
		foreach ($GLOBALS['TL_DCA'][$this->strTable]['fields'] as $k=>$v)
		{
			if ((int) $v['filter'] == $intFilterPanel)
			{
				$sortingFields[] = $k;
			}
		}

		// Return if there are no sorting fields
		if (empty($sortingFields))
		{
			return '';
		}

		// Set filter from user input
		if (Input::post('FORM_SUBMIT') == 'tl_filters')
		{
			foreach ($sortingFields as $field)
			{
				if (Input::post($field, true) != 'tl_'.$field)
				{
					$session['filter'][$filter][$field] = Input::post($field, true);
				}
				else
				{
					unset($session['filter'][$filter][$field]);
				}
			}

			$objSessionBag->replace($session);
		}

		// Set filter from table configuration
		else
		{
			foreach ($sortingFields as $field)
			{
				if (isset($session['filter'][$filter][$field]))
				{
					// Sort by day
					if (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(5, 6)))
					{
						if ($session['filter'][$filter][$field] == '')
						{
							$this->procedure[] = $field . "=''";
						}
						else
						{
							$objDate = new Date($session['filter'][$filter][$field]);
							$this->procedure[] = $field . ' BETWEEN ? AND ?';
							$this->values[] = $objDate->dayBegin;
							$this->values[] = $objDate->dayEnd;
						}
					}

					// Sort by month
					elseif (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(7, 8)))
					{
						if ($session['filter'][$filter][$field] == '')
						{
							$this->procedure[] = $field . "=''";
						}
						else
						{
							$objDate = new Date($session['filter'][$filter][$field]);
							$this->procedure[] = $field . ' BETWEEN ? AND ?';
							$this->values[] = $objDate->monthBegin;
							$this->values[] = $objDate->monthEnd;
						}
					}

					// Sort by year
					elseif (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(9, 10)))
					{
						if ($session['filter'][$filter][$field] == '')
						{
							$this->procedure[] = $field . "=''";
						}
						else
						{
							$objDate = new Date($session['filter'][$filter][$field]);
							$this->procedure[] = $field . ' BETWEEN ? AND ?';
							$this->values[] = $objDate->yearBegin;
							$this->values[] = $objDate->yearEnd;
						}
					}

					// Manual filter
					elseif ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['multiple'])
					{
						// CSV lists (see #2890)
						if (isset($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['csv']))
						{
							$this->procedure[] = $this->Database->findInSet('?', $field, true);
							$this->values[] = $session['filter'][$filter][$field];
						}
						else
						{
							$this->procedure[] = $field . ' LIKE ?';
							$this->values[] = '%"' . $session['filter'][$filter][$field] . '"%';
						}
					}

					// Other sort algorithm
					else
					{
						$this->procedure[] = $field . '=?';
						$this->values[] = $session['filter'][$filter][$field];
					}
				}
			}
		}

		// Add sorting options
		foreach ($sortingFields as $cnt=>$field)
		{
			$arrValues = array();
			$arrProcedure = array();

			if ($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['mode'] == 4)
			{
				$arrProcedure[] = 'pid=?';
				$arrValues[] = CURRENT_ID;
			}

			if (!$this->treeView && !empty($this->root) && \is_array($this->root))
			{
				$arrProcedure[] = "id IN(" . implode(',', array_map('\intval', $this->root)) . ")";
			}

			// Check for a static filter (see #4719)
			if (!empty($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['filter']) && \is_array($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['filter']))
			{
				foreach ($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['filter'] as $fltr)
				{
					$arrProcedure[] = $fltr[0];
					$arrValues[] = $fltr[1];
				}
			}

			// Support empty ptable fields
			if ($GLOBALS['TL_DCA'][$this->strTable]['config']['dynamicPtable'])
			{
				$arrProcedure[] = ($this->ptable == 'tl_article') ? "(ptable=? OR ptable='')" : "ptable=?";
				$arrValues[] = $this->ptable;
			}

			$what = Database::quoteIdentifier($field);

			// Optimize the SQL query (see #8485)
			if (isset($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag']))
			{
				// Sort by day
				if (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(5, 6)))
				{
					$what = "IF($what!='', UNIX_TIMESTAMP(FROM_UNIXTIME($what , '%%Y-%%m-%%d')), '') AS $what";
				}

				// Sort by month
				elseif (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(7, 8)))
				{
					$what = "IF($what!='', UNIX_TIMESTAMP(FROM_UNIXTIME($what , '%%Y-%%m-01')), '') AS $what";
				}

				// Sort by year
				elseif (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(9, 10)))
				{
					$what = "IF($what!='', UNIX_TIMESTAMP(FROM_UNIXTIME($what , '%%Y-01-01')), '') AS $what";
				}
			}

			$table = ($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['mode'] == 6) ? $this->ptable : $this->strTable;

			// Limit the options if there are root records
			if (isset($GLOBALS['TL_DCA'][$table]['list']['sorting']['root']) && $GLOBALS['TL_DCA'][$table]['list']['sorting']['root'] !== false)
			{
				$arrProcedure[] = "id IN(" . implode(',', array_map('\intval', $GLOBALS['TL_DCA'][$table]['list']['sorting']['root'])) . ")";
			}

			$objFields = $this->Database->prepare("SELECT DISTINCT " . $what . " FROM " . $this->strTable . ((\is_array($arrProcedure) && \strlen($arrProcedure[0])) ? ' WHERE ' . implode(' AND ', $arrProcedure) : ''))
										->execute($arrValues);

			// Begin select menu
			$fields .= '
<select name="'.$field.'" id="'.$field.'" class="tl_select' . (isset($session['filter'][$filter][$field]) ? ' active' : '') . '">
  <option value="tl_'.$field.'">'.(\is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['label']) ? $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['label'][0] : $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['label']).'</option>
  <option value="tl_'.$field.'">---</option>';

			if ($objFields->numRows)
			{
				$options = $objFields->fetchEach($field);

				// Sort by day
				if (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(5, 6)))
				{
					($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'] == 6) ? rsort($options) : sort($options);

					foreach ($options as $k=>$v)
					{
						if ($v === '')
						{
							$options[$v] = '-';
						}
						else
						{
							$options[$v] = Date::parse(Config::get('dateFormat'), $v);
						}

						unset($options[$k]);
					}
				}

				// Sort by month
				elseif (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(7, 8)))
				{
					($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'] == 8) ? rsort($options) : sort($options);

					foreach ($options as $k=>$v)
					{
						if ($v === '')
						{
							$options[$v] = '-';
						}
						else
						{
							$options[$v] = date('Y-m', $v);
							$intMonth = (date('m', $v) - 1);

							if (isset($GLOBALS['TL_LANG']['MONTHS'][$intMonth]))
							{
								$options[$v] = $GLOBALS['TL_LANG']['MONTHS'][$intMonth] . ' ' . date('Y', $v);
							}
						}

						unset($options[$k]);
					}
				}

				// Sort by year
				elseif (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(9, 10)))
				{
					($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'] == 10) ? rsort($options) : sort($options);

					foreach ($options as $k=>$v)
					{
						if ($v === '')
						{
							$options[$v] = '-';
						}
						else
						{
							$options[$v] = date('Y', $v);
						}

						unset($options[$k]);
					}
				}

				// Manual filter
				if ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['multiple'])
				{
					$moptions = array();

					// TODO: find a more effective solution
					foreach($options as $option)
					{
						// CSV lists (see #2890)
						if (isset($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['csv']))
						{
							$doptions = StringUtil::trimsplit($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['csv'], $option);
						}
						else
						{
							$doptions = StringUtil::deserialize($option);
						}

						if (\is_array($doptions))
						{
							$moptions = array_merge($moptions, $doptions);
						}
					}

					$options = $moptions;
				}

				$options = array_unique($options);
				$options_callback = array();

				// Call the options_callback
				if ((\is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback']) || \is_callable($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback'])) && !$GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'])
				{
					if (\is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback']))
					{
						$strClass = $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback'][0];
						$strMethod = $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback'][1];

						$this->import($strClass);
						$options_callback = $this->$strClass->$strMethod($this);
					}
					elseif (\is_callable($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback']))
					{
						$options_callback = $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback']($this);
					}

					// Sort options according to the keys of the callback array
					$options = array_intersect(array_keys($options_callback), $options);
				}

				$options_sorter = array();
				$blnDate = \in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(5, 6, 7, 8, 9, 10));

				// Options
				foreach ($options as $kk=>$vv)
				{
					$value = $blnDate ? $kk : $vv;

					// Options callback
					if (!empty($options_callback) && \is_array($options_callback))
					{
						$vv = $options_callback[$vv];
					}

					// Replace the ID with the foreign key
					elseif (isset($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['foreignKey']))
					{
						$key = explode('.', $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['foreignKey'], 2);

						$objParent = $this->Database->prepare("SELECT " . Database::quoteIdentifier($key[1]) . " AS value FROM " . $key[0] . " WHERE id=?")
													->limit(1)
													->execute($vv);

						if ($objParent->numRows)
						{
							$vv = $objParent->value;
						}
					}

					// Replace boolean checkbox value with "yes" and "no"
					elseif ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['isBoolean'] || ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['inputType'] == 'checkbox' && !$GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['multiple']))
					{
						$vv = $vv ? $GLOBALS['TL_LANG']['MSC']['yes'] : $GLOBALS['TL_LANG']['MSC']['no'];
					}

					// Get the name of the parent record (see #2703)
					elseif ($field == 'pid')
					{
						$this->loadDataContainer($this->ptable);
						$showFields = $GLOBALS['TL_DCA'][$this->ptable]['list']['label']['fields'];

						if (!$showFields[0])
						{
							$showFields[0] = 'id';
						}

						$objShowFields = $this->Database->prepare("SELECT " . Database::quoteIdentifier($showFields[0]) . " FROM ". $this->ptable . " WHERE id=?")
														->limit(1)
														->execute($vv);

						if ($objShowFields->numRows)
						{
							$vv = $objShowFields->{$showFields[0]};
						}
					}

					$option_label = '';

					// Use reference array
					if (isset($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference']))
					{
						$option_label = \is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'][$vv]) ? $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'][$vv][0] : $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'][$vv];
					}

					// Associative array
					elseif ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['isAssociative'] || array_is_assoc($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options']))
					{
						$option_label = $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options'][$vv];
					}

					// No empty options allowed
					if (!\strlen($option_label))
					{
						$option_label = $vv ?: '-';
					}

					$options_sorter['  <option value="' . StringUtil::specialchars($value) . '"' . ((isset($session['filter'][$filter][$field]) && $value == $session['filter'][$filter][$field]) ? ' selected="selected"' : '').'>'.$option_label.'</option>'] = Utf8::toAscii($option_label);
				}

				// Sort by option values
				if (!$blnDate)
				{
					natcasesort($options_sorter);

					if (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(2, 4, 12)))
					{
						$options_sorter = array_reverse($options_sorter, true);
					}
				}

				$fields .= "\n" . implode("\n", array_keys($options_sorter));
			}

			// End select menu
			$fields .= '
</select> ';

			// Force a line-break after six elements (see #3777)
			if ((($cnt + 1) % 6) == 0)
			{
				$fields .= '<br>';
			}
		}

		return '
<div class="tl_filter tl_subpanel">
<strong>' . $GLOBALS['TL_LANG']['MSC']['filter'] . ':</strong> ' . $fields . '
</div>';
	}
protected function filterMenu($intFilterPanel)
	{
		
		$objSessionBag = System::getContainer()->get('session')->getBag('contao_backend');

		$fields = '';
		$sortingFields = array();
		$session = $objSessionBag->all();
		$filter = ($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['mode'] == 4) ? $this->strTable.'_'.CURRENT_ID : $this->strTable;

		
		foreach ($GLOBALS['TL_DCA'][$this->strTable]['fields'] as $k=>$v)
		{
			if ((int) $v['filter'] == $intFilterPanel)
			{
				$sortingFields[] = $k;
			}
		}

		
		if (empty($sortingFields))
		{
			return '';
		}

		
		if (Input::post('FORM_SUBMIT') == 'tl_filters')
		{
			foreach ($sortingFields as $field)
			{
				if (Input::post($field, true) != 'tl_'.$field)
				{
					$session['filter'][$filter][$field] = Input::post($field, true);
				}
				else
				{
					unset($session['filter'][$filter][$field]);
				}
			}

			$objSessionBag->replace($session);
		}

		
		else
		{
			foreach ($sortingFields as $field)
			{
				if (isset($session['filter'][$filter][$field]))
				{
					
					if (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(5, 6)))
					{
						if ($session['filter'][$filter][$field] == '')
						{
							$this->procedure[] = $field . "=''";
						}
						else
						{
							$objDate = new Date($session['filter'][$filter][$field]);
							$this->procedure[] = $field . ' BETWEEN ? AND ?';
							$this->values[] = $objDate->dayBegin;
							$this->values[] = $objDate->dayEnd;
						}
					}

					
					elseif (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(7, 8)))
					{
						if ($session['filter'][$filter][$field] == '')
						{
							$this->procedure[] = $field . "=''";
						}
						else
						{
							$objDate = new Date($session['filter'][$filter][$field]);
							$this->procedure[] = $field . ' BETWEEN ? AND ?';
							$this->values[] = $objDate->monthBegin;
							$this->values[] = $objDate->monthEnd;
						}
					}

					
					elseif (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(9, 10)))
					{
						if ($session['filter'][$filter][$field] == '')
						{
							$this->procedure[] = $field . "=''";
						}
						else
						{
							$objDate = new Date($session['filter'][$filter][$field]);
							$this->procedure[] = $field . ' BETWEEN ? AND ?';
							$this->values[] = $objDate->yearBegin;
							$this->values[] = $objDate->yearEnd;
						}
					}

					
					elseif ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['multiple'])
					{
						
						if (isset($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['csv']))
						{
							$this->procedure[] = $this->Database->findInSet('?', $field, true);
							$this->values[] = $session['filter'][$filter][$field];
						}
						else
						{
							$this->procedure[] = $field . ' LIKE ?';
							$this->values[] = '%"' . $session['filter'][$filter][$field] . '"%';
						}
					}

					
					else
					{
						$this->procedure[] = $field . '=?';
						$this->values[] = $session['filter'][$filter][$field];
					}
				}
			}
		}

		
		foreach ($sortingFields as $cnt=>$field)
		{
			$arrValues = array();
			$arrProcedure = array();

			if ($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['mode'] == 4)
			{
				$arrProcedure[] = 'pid=?';
				$arrValues[] = CURRENT_ID;
			}

			if (!$this->treeView && !empty($this->root) && \is_array($this->root))
			{
				$arrProcedure[] = "id IN(" . implode(',', array_map('\intval', $this->root)) . ")";
			}

			
			if (!empty($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['filter']) && \is_array($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['filter']))
			{
				foreach ($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['filter'] as $fltr)
				{
					$arrProcedure[] = $fltr[0];
					$arrValues[] = $fltr[1];
				}
			}

			
			if ($GLOBALS['TL_DCA'][$this->strTable]['config']['dynamicPtable'])
			{
				$arrProcedure[] = ($this->ptable == 'tl_article') ? "(ptable=? OR ptable='')" : "ptable=?";
				$arrValues[] = $this->ptable;
			}

			$what = Database::quoteIdentifier($field);

			
			if (isset($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag']))
			{
				
				if (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(5, 6)))
				{
					$what = "IF($what!='', UNIX_TIMESTAMP(FROM_UNIXTIME($what , '%%Y-%%m-%%d')), '') AS $what";
				}

				
				elseif (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(7, 8)))
				{
					$what = "IF($what!='', UNIX_TIMESTAMP(FROM_UNIXTIME($what , '%%Y-%%m-01')), '') AS $what";
				}

				
				elseif (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(9, 10)))
				{
					$what = "IF($what!='', UNIX_TIMESTAMP(FROM_UNIXTIME($what , '%%Y-01-01')), '') AS $what";
				}
			}

			$table = ($GLOBALS['TL_DCA'][$this->strTable]['list']['sorting']['mode'] == 6) ? $this->ptable : $this->strTable;

			
			if (isset($GLOBALS['TL_DCA'][$table]['list']['sorting']['root']) && $GLOBALS['TL_DCA'][$table]['list']['sorting']['root'] !== false)
			{
				$arrProcedure[] = "id IN(" . implode(',', array_map('\intval', $GLOBALS['TL_DCA'][$table]['list']['sorting']['root'])) . ")";
			}

			$objFields = $this->Database->prepare("SELECT DISTINCT " . $what . " FROM " . $this->strTable . ((\is_array($arrProcedure) && \strlen($arrProcedure[0])) ? ' WHERE ' . implode(' AND ', $arrProcedure) : ''))
										->execute($arrValues);

			
			$fields .= '
<select name="'.$field.'" id="'.$field.'" class="tl_select' . (isset($session['filter'][$filter][$field]) ? ' active' : '') . '">
  <option value="tl_'.$field.'">'.(\is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['label']) ? $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['label'][0] : $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['label']).'</option>
  <option value="tl_'.$field.'">---</option>';

			if ($objFields->numRows)
			{
				$options = $objFields->fetchEach($field);

				
				if (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(5, 6)))
				{
					($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'] == 6) ? rsort($options) : sort($options);

					foreach ($options as $k=>$v)
					{
						if ($v === '')
						{
							$options[$v] = '-';
						}
						else
						{
							$options[$v] = Date::parse(Config::get('dateFormat'), $v);
						}

						unset($options[$k]);
					}
				}

				
				elseif (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(7, 8)))
				{
					($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'] == 8) ? rsort($options) : sort($options);

					foreach ($options as $k=>$v)
					{
						if ($v === '')
						{
							$options[$v] = '-';
						}
						else
						{
							$options[$v] = date('Y-m', $v);
							$intMonth = (date('m', $v) - 1);

							if (isset($GLOBALS['TL_LANG']['MONTHS'][$intMonth]))
							{
								$options[$v] = $GLOBALS['TL_LANG']['MONTHS'][$intMonth] . ' ' . date('Y', $v);
							}
						}

						unset($options[$k]);
					}
				}

				
				elseif (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(9, 10)))
				{
					($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'] == 10) ? rsort($options) : sort($options);

					foreach ($options as $k=>$v)
					{
						if ($v === '')
						{
							$options[$v] = '-';
						}
						else
						{
							$options[$v] = date('Y', $v);
						}

						unset($options[$k]);
					}
				}

				
				if ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['multiple'])
				{
					$moptions = array();

					
					foreach($options as $option)
					{
						
						if (isset($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['csv']))
						{
							$doptions = StringUtil::trimsplit($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['csv'], $option);
						}
						else
						{
							$doptions = StringUtil::deserialize($option);
						}

						if (\is_array($doptions))
						{
							$moptions = array_merge($moptions, $doptions);
						}
					}

					$options = $moptions;
				}

				$options = array_unique($options);
				$options_callback = array();

				
				if ((\is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback']) || \is_callable($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback'])) && !$GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'])
				{
					if (\is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback']))
					{
						$strClass = $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback'][0];
						$strMethod = $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback'][1];

						$this->import($strClass);
						$options_callback = $this->$strClass->$strMethod($this);
					}
					elseif (\is_callable($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback']))
					{
						$options_callback = $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback']($this);
					}

					
					$options = array_intersect(array_keys($options_callback), $options);
				}

				$options_sorter = array();
				$blnDate = \in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(5, 6, 7, 8, 9, 10));

				
				foreach ($options as $kk=>$vv)
				{
					$value = $blnDate ? $kk : $vv;

					
					if (!empty($options_callback) && \is_array($options_callback))
					{
						$vv = $options_callback[$vv];
					}

					
					elseif (isset($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['foreignKey']))
					{
						$key = explode('.', $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['foreignKey'], 2);

						$objParent = $this->Database->prepare("SELECT " . Database::quoteIdentifier($key[1]) . " AS value FROM " . $key[0] . " WHERE id=?")
													->limit(1)
													->execute($vv);

						if ($objParent->numRows)
						{
							$vv = $objParent->value;
						}
					}

					
					elseif ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['isBoolean'] || ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['inputType'] == 'checkbox' && !$GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['multiple']))
					{
						$vv = $vv ? $GLOBALS['TL_LANG']['MSC']['yes'] : $GLOBALS['TL_LANG']['MSC']['no'];
					}

					
					elseif ($field == 'pid')
					{
						$this->loadDataContainer($this->ptable);
						$showFields = $GLOBALS['TL_DCA'][$this->ptable]['list']['label']['fields'];

						if (!$showFields[0])
						{
							$showFields[0] = 'id';
						}

						$objShowFields = $this->Database->prepare("SELECT " . Database::quoteIdentifier($showFields[0]) . " FROM ". $this->ptable . " WHERE id=?")
														->limit(1)
														->execute($vv);

						if ($objShowFields->numRows)
						{
							$vv = $objShowFields->{$showFields[0]};
						}
					}

					$option_label = '';

					
					if (isset($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference']))
					{
						$option_label = \is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'][$vv]) ? $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'][$vv][0] : $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'][$vv];
					}

					
					elseif ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['isAssociative'] || array_is_assoc($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options']))
					{
						$option_label = $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options'][$vv];
					}

					
					if (!\strlen($option_label))
					{
						$option_label = $vv ?: '-';
					}

					$options_sorter['  <option value="' . StringUtil::specialchars($value) . '"' . ((isset($session['filter'][$filter][$field]) && $value == $session['filter'][$filter][$field]) ? ' selected="selected"' : '').'>'.$option_label.'</option>'] = Utf8::toAscii($option_label);
				}

				
				if (!$blnDate)
				{
					natcasesort($options_sorter);

					if (\in_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['flag'], array(2, 4, 12)))
					{
						$options_sorter = array_reverse($options_sorter, true);
					}
				}

				$fields .= "\n" . implode("\n", array_keys($options_sorter));
			}

			
			$fields .= '
</select> ';

			
			if ((($cnt + 1) % 6) == 0)
			{
				$fields .= '<br>';
			}
		}

		return '
<div class="tl_filter tl_subpanel">
<strong>' . $GLOBALS['TL_LANG']['MSC']['filter'] . ':</strong> ' . $fields . '
</div>';
	}
protected function filterMenu ( $ intFilterPanel ) { /** @var AttributeBagInterface $objSessionBag */ $ objSessionBag = System :: getContainer ( ) -> get ( 'session' ) -> getBag ( 'contao_backend' ) ; $ fields = '' ; $ sortingFields = array ( ) ; $ session = $ objSessionBag -> all ( ) ; $ filter = ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'list' ] [ 'sorting' ] [ 'mode' ] == 4 ) ? $ this -> strTable . '_' . CURRENT_ID : $ this -> strTable ; // Get the sorting fields foreach ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] as $ k => $ v ) { if ( ( int ) $ v [ 'filter' ] == $ intFilterPanel ) { $ sortingFields [ ] = $ k ; } } // Return if there are no sorting fields if ( empty ( $ sortingFields ) ) { return '' ; } // Set filter from user input if ( Input :: post ( 'FORM_SUBMIT' ) == 'tl_filters' ) { foreach ( $ sortingFields as $ field ) { if ( Input :: post ( $ field , true ) != 'tl_' . $ field ) { $ session [ 'filter' ] [ $ filter ] [ $ field ] = Input :: post ( $ field , true ) ; } else { unset ( $ session [ 'filter' ] [ $ filter ] [ $ field ] ) ; } } $ objSessionBag -> replace ( $ session ) ; } // Set filter from table configuration else { foreach ( $ sortingFields as $ field ) { if ( isset ( $ session [ 'filter' ] [ $ filter ] [ $ field ] ) ) { // Sort by day if ( \ in_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] , array ( 5 , 6 ) ) ) { if ( $ session [ 'filter' ] [ $ filter ] [ $ field ] == '' ) { $ this -> procedure [ ] = $ field . "=''" ; } else { $ objDate = new Date ( $ session [ 'filter' ] [ $ filter ] [ $ field ] ) ; $ this -> procedure [ ] = $ field . ' BETWEEN ? AND ?' ; $ this -> values [ ] = $ objDate -> dayBegin ; $ this -> values [ ] = $ objDate -> dayEnd ; } } // Sort by month elseif ( \ in_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] , array ( 7 , 8 ) ) ) { if ( $ session [ 'filter' ] [ $ filter ] [ $ field ] == '' ) { $ this -> procedure [ ] = $ field . "=''" ; } else { $ objDate = new Date ( $ session [ 'filter' ] [ $ filter ] [ $ field ] ) ; $ this -> procedure [ ] = $ field . ' BETWEEN ? AND ?' ; $ this -> values [ ] = $ objDate -> monthBegin ; $ this -> values [ ] = $ objDate -> monthEnd ; } } // Sort by year elseif ( \ in_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] , array ( 9 , 10 ) ) ) { if ( $ session [ 'filter' ] [ $ filter ] [ $ field ] == '' ) { $ this -> procedure [ ] = $ field . "=''" ; } else { $ objDate = new Date ( $ session [ 'filter' ] [ $ filter ] [ $ field ] ) ; $ this -> procedure [ ] = $ field . ' BETWEEN ? AND ?' ; $ this -> values [ ] = $ objDate -> yearBegin ; $ this -> values [ ] = $ objDate -> yearEnd ; } } // Manual filter elseif ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'eval' ] [ 'multiple' ] ) { // CSV lists (see #2890) if ( isset ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'eval' ] [ 'csv' ] ) ) { $ this -> procedure [ ] = $ this -> Database -> findInSet ( '?' , $ field , true ) ; $ this -> values [ ] = $ session [ 'filter' ] [ $ filter ] [ $ field ] ; } else { $ this -> procedure [ ] = $ field . ' LIKE ?' ; $ this -> values [ ] = '%"' . $ session [ 'filter' ] [ $ filter ] [ $ field ] . '"%' ; } } // Other sort algorithm else { $ this -> procedure [ ] = $ field . '=?' ; $ this -> values [ ] = $ session [ 'filter' ] [ $ filter ] [ $ field ] ; } } } } // Add sorting options foreach ( $ sortingFields as $ cnt => $ field ) { $ arrValues = array ( ) ; $ arrProcedure = array ( ) ; if ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'list' ] [ 'sorting' ] [ 'mode' ] == 4 ) { $ arrProcedure [ ] = 'pid=?' ; $ arrValues [ ] = CURRENT_ID ; } if ( ! $ this -> treeView && ! empty ( $ this -> root ) && \ is_array ( $ this -> root ) ) { $ arrProcedure [ ] = "id IN(" . implode ( ',' , array_map ( '\intval' , $ this -> root ) ) . ")" ; } // Check for a static filter (see #4719) if ( ! empty ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'list' ] [ 'sorting' ] [ 'filter' ] ) && \ is_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'list' ] [ 'sorting' ] [ 'filter' ] ) ) { foreach ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'list' ] [ 'sorting' ] [ 'filter' ] as $ fltr ) { $ arrProcedure [ ] = $ fltr [ 0 ] ; $ arrValues [ ] = $ fltr [ 1 ] ; } } // Support empty ptable fields if ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'config' ] [ 'dynamicPtable' ] ) { $ arrProcedure [ ] = ( $ this -> ptable == 'tl_article' ) ? "(ptable=? OR ptable='')" : "ptable=?" ; $ arrValues [ ] = $ this -> ptable ; } $ what = Database :: quoteIdentifier ( $ field ) ; // Optimize the SQL query (see #8485) if ( isset ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] ) ) { // Sort by day if ( \ in_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] , array ( 5 , 6 ) ) ) { $ what = "IF($what!='', UNIX_TIMESTAMP(FROM_UNIXTIME($what , '%%Y-%%m-%%d')), '') AS $what" ; } // Sort by month elseif ( \ in_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] , array ( 7 , 8 ) ) ) { $ what = "IF($what!='', UNIX_TIMESTAMP(FROM_UNIXTIME($what , '%%Y-%%m-01')), '') AS $what" ; } // Sort by year elseif ( \ in_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] , array ( 9 , 10 ) ) ) { $ what = "IF($what!='', UNIX_TIMESTAMP(FROM_UNIXTIME($what , '%%Y-01-01')), '') AS $what" ; } } $ table = ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'list' ] [ 'sorting' ] [ 'mode' ] == 6 ) ? $ this -> ptable : $ this -> strTable ; // Limit the options if there are root records if ( isset ( $ GLOBALS [ 'TL_DCA' ] [ $ table ] [ 'list' ] [ 'sorting' ] [ 'root' ] ) && $ GLOBALS [ 'TL_DCA' ] [ $ table ] [ 'list' ] [ 'sorting' ] [ 'root' ] !== false ) { $ arrProcedure [ ] = "id IN(" . implode ( ',' , array_map ( '\intval' , $ GLOBALS [ 'TL_DCA' ] [ $ table ] [ 'list' ] [ 'sorting' ] [ 'root' ] ) ) . ")" ; } $ objFields = $ this -> Database -> prepare ( "SELECT DISTINCT " . $ what . " FROM " . $ this -> strTable . ( ( \ is_array ( $ arrProcedure ) && \ strlen ( $ arrProcedure [ 0 ] ) ) ? ' WHERE ' . implode ( ' AND ' , $ arrProcedure ) : '' ) ) -> execute ( $ arrValues ) ; // Begin select menu $ fields .= '
<select name="' . $ field . '" id="' . $ field . '" class="tl_select' . ( isset ( $ session [ 'filter' ] [ $ filter ] [ $ field ] ) ? ' active' : '' ) . '">
  <option value="tl_' . $ field . '">' . ( \ is_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'label' ] ) ? $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'label' ] [ 0 ] : $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'label' ] ) . '</option>
  <option value="tl_' . $ field . '">---</option>' ; if ( $ objFields -> numRows ) { $ options = $ objFields -> fetchEach ( $ field ) ; // Sort by day if ( \ in_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] , array ( 5 , 6 ) ) ) { ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] == 6 ) ? rsort ( $ options ) : sort ( $ options ) ; foreach ( $ options as $ k => $ v ) { if ( $ v === '' ) { $ options [ $ v ] = '-' ; } else { $ options [ $ v ] = Date :: parse ( Config :: get ( 'dateFormat' ) , $ v ) ; } unset ( $ options [ $ k ] ) ; } } // Sort by month elseif ( \ in_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] , array ( 7 , 8 ) ) ) { ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] == 8 ) ? rsort ( $ options ) : sort ( $ options ) ; foreach ( $ options as $ k => $ v ) { if ( $ v === '' ) { $ options [ $ v ] = '-' ; } else { $ options [ $ v ] = date ( 'Y-m' , $ v ) ; $ intMonth = ( date ( 'm' , $ v ) - 1 ) ; if ( isset ( $ GLOBALS [ 'TL_LANG' ] [ 'MONTHS' ] [ $ intMonth ] ) ) { $ options [ $ v ] = $ GLOBALS [ 'TL_LANG' ] [ 'MONTHS' ] [ $ intMonth ] . ' ' . date ( 'Y' , $ v ) ; } } unset ( $ options [ $ k ] ) ; } } // Sort by year elseif ( \ in_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] , array ( 9 , 10 ) ) ) { ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] == 10 ) ? rsort ( $ options ) : sort ( $ options ) ; foreach ( $ options as $ k => $ v ) { if ( $ v === '' ) { $ options [ $ v ] = '-' ; } else { $ options [ $ v ] = date ( 'Y' , $ v ) ; } unset ( $ options [ $ k ] ) ; } } // Manual filter if ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'eval' ] [ 'multiple' ] ) { $ moptions = array ( ) ; // TODO: find a more effective solution foreach ( $ options as $ option ) { // CSV lists (see #2890) if ( isset ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'eval' ] [ 'csv' ] ) ) { $ doptions = StringUtil :: trimsplit ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'eval' ] [ 'csv' ] , $ option ) ; } else { $ doptions = StringUtil :: deserialize ( $ option ) ; } if ( \ is_array ( $ doptions ) ) { $ moptions = array_merge ( $ moptions , $ doptions ) ; } } $ options = $ moptions ; } $ options = array_unique ( $ options ) ; $ options_callback = array ( ) ; // Call the options_callback if ( ( \ is_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'options_callback' ] ) || \ is_callable ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'options_callback' ] ) ) && ! $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'reference' ] ) { if ( \ is_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'options_callback' ] ) ) { $ strClass = $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'options_callback' ] [ 0 ] ; $ strMethod = $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'options_callback' ] [ 1 ] ; $ this -> import ( $ strClass ) ; $ options_callback = $ this -> $ strClass -> $ strMethod ( $ this ) ; } elseif ( \ is_callable ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'options_callback' ] ) ) { $ options_callback = $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'options_callback' ] ( $ this ) ; } // Sort options according to the keys of the callback array $ options = array_intersect ( array_keys ( $ options_callback ) , $ options ) ; } $ options_sorter = array ( ) ; $ blnDate = \ in_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] , array ( 5 , 6 , 7 , 8 , 9 , 10 ) ) ; // Options foreach ( $ options as $ kk => $ vv ) { $ value = $ blnDate ? $ kk : $ vv ; // Options callback if ( ! empty ( $ options_callback ) && \ is_array ( $ options_callback ) ) { $ vv = $ options_callback [ $ vv ] ; } // Replace the ID with the foreign key elseif ( isset ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'foreignKey' ] ) ) { $ key = explode ( '.' , $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'foreignKey' ] , 2 ) ; $ objParent = $ this -> Database -> prepare ( "SELECT " . Database :: quoteIdentifier ( $ key [ 1 ] ) . " AS value FROM " . $ key [ 0 ] . " WHERE id=?" ) -> limit ( 1 ) -> execute ( $ vv ) ; if ( $ objParent -> numRows ) { $ vv = $ objParent -> value ; } } // Replace boolean checkbox value with "yes" and "no" elseif ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'eval' ] [ 'isBoolean' ] || ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'inputType' ] == 'checkbox' && ! $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'eval' ] [ 'multiple' ] ) ) { $ vv = $ vv ? $ GLOBALS [ 'TL_LANG' ] [ 'MSC' ] [ 'yes' ] : $ GLOBALS [ 'TL_LANG' ] [ 'MSC' ] [ 'no' ] ; } // Get the name of the parent record (see #2703) elseif ( $ field == 'pid' ) { $ this -> loadDataContainer ( $ this -> ptable ) ; $ showFields = $ GLOBALS [ 'TL_DCA' ] [ $ this -> ptable ] [ 'list' ] [ 'label' ] [ 'fields' ] ; if ( ! $ showFields [ 0 ] ) { $ showFields [ 0 ] = 'id' ; } $ objShowFields = $ this -> Database -> prepare ( "SELECT " . Database :: quoteIdentifier ( $ showFields [ 0 ] ) . " FROM " . $ this -> ptable . " WHERE id=?" ) -> limit ( 1 ) -> execute ( $ vv ) ; if ( $ objShowFields -> numRows ) { $ vv = $ objShowFields -> { $ showFields [ 0 ] } ; } } $ option_label = '' ; // Use reference array if ( isset ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'reference' ] ) ) { $ option_label = \ is_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'reference' ] [ $ vv ] ) ? $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'reference' ] [ $ vv ] [ 0 ] : $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'reference' ] [ $ vv ] ; } // Associative array elseif ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'eval' ] [ 'isAssociative' ] || array_is_assoc ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'options' ] ) ) { $ option_label = $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'options' ] [ $ vv ] ; } // No empty options allowed if ( ! \ strlen ( $ option_label ) ) { $ option_label = $ vv ? : '-' ; } $ options_sorter [ '  <option value="' . StringUtil :: specialchars ( $ value ) . '"' . ( ( isset ( $ session [ 'filter' ] [ $ filter ] [ $ field ] ) && $ value == $ session [ 'filter' ] [ $ filter ] [ $ field ] ) ? ' selected="selected"' : '' ) . '>' . $ option_label . '</option>' ] = Utf8 :: toAscii ( $ option_label ) ; } // Sort by option values if ( ! $ blnDate ) { natcasesort ( $ options_sorter ) ; if ( \ in_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'flag' ] , array ( 2 , 4 , 12 ) ) ) { $ options_sorter = array_reverse ( $ options_sorter , true ) ; } } $ fields .= "\n" . implode ( "\n" , array_keys ( $ options_sorter ) ) ; } // End select menu $ fields .= '
</select> ' ; // Force a line-break after six elements (see #3777) if ( ( ( $ cnt + 1 ) % 6 ) == 0 ) { $ fields .= '<br>' ; } } return '
<div class="tl_filter tl_subpanel">
<strong>' . $ GLOBALS [ 'TL_LANG' ] [ 'MSC' ] [ 'filter' ] . ':</strong> ' . $ fields . '
</div>' ; }
Generate the filter panel and return it as HTML string

@param integer $intFilterPanel

@return string
Generate the filter panel and return it as HTML string