protected function formatGroupHeader($field, $value, $mode, $row)
	{
		static $lookup = array();

		if ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['isAssociative'] || array_is_assoc($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options']))
		{
			$group = $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options'][$value];
		}
		elseif (\is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback']))
		{
			if (!isset($lookup[$field]))
			{
				$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);
				$lookup[$field] = $this->$strClass->$strMethod($this);
			}

			$group = $lookup[$field][$value];
		}
		else
		{
			$group = \is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'][$value]) ? $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'][$value][0] : $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'][$value];
		}

		if (empty($group))
		{
			$group = \is_array($GLOBALS['TL_LANG'][$this->strTable][$value]) ? $GLOBALS['TL_LANG'][$this->strTable][$value][0] : $GLOBALS['TL_LANG'][$this->strTable][$value];
		}

		if (empty($group))
		{
			$group = $value;

			if ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['isBoolean'] && $value != '-')
			{
				$group = \is_array($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'];
			}
		}

		// Call the group callback ($group, $sortingMode, $firstOrderBy, $row, $this)
		if (\is_array($GLOBALS['TL_DCA'][$this->strTable]['list']['label']['group_callback']))
		{
			$strClass = $GLOBALS['TL_DCA'][$this->strTable]['list']['label']['group_callback'][0];
			$strMethod = $GLOBALS['TL_DCA'][$this->strTable]['list']['label']['group_callback'][1];

			$this->import($strClass);
			$group = $this->$strClass->$strMethod($group, $mode, $field, $row, $this);
		}
		elseif (\is_callable($GLOBALS['TL_DCA'][$this->strTable]['list']['label']['group_callback']))
		{
			$group = $GLOBALS['TL_DCA'][$this->strTable]['list']['label']['group_callback']($group, $mode, $field, $row, $this);
		}

		return $group;
	}
protected function formatGroupHeader($field, $value, $mode, $row)
	{
		static $lookup = array();

		if ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['isAssociative'] || array_is_assoc($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options']))
		{
			$group = $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options'][$value];
		}
		elseif (\is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['options_callback']))
		{
			if (!isset($lookup[$field]))
			{
				$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);
				$lookup[$field] = $this->$strClass->$strMethod($this);
			}

			$group = $lookup[$field][$value];
		}
		else
		{
			$group = \is_array($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'][$value]) ? $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'][$value][0] : $GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['reference'][$value];
		}

		if (empty($group))
		{
			$group = \is_array($GLOBALS['TL_LANG'][$this->strTable][$value]) ? $GLOBALS['TL_LANG'][$this->strTable][$value][0] : $GLOBALS['TL_LANG'][$this->strTable][$value];
		}

		if (empty($group))
		{
			$group = $value;

			if ($GLOBALS['TL_DCA'][$this->strTable]['fields'][$field]['eval']['isBoolean'] && $value != '-')
			{
				$group = \is_array($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'];
			}
		}

		
		if (\is_array($GLOBALS['TL_DCA'][$this->strTable]['list']['label']['group_callback']))
		{
			$strClass = $GLOBALS['TL_DCA'][$this->strTable]['list']['label']['group_callback'][0];
			$strMethod = $GLOBALS['TL_DCA'][$this->strTable]['list']['label']['group_callback'][1];

			$this->import($strClass);
			$group = $this->$strClass->$strMethod($group, $mode, $field, $row, $this);
		}
		elseif (\is_callable($GLOBALS['TL_DCA'][$this->strTable]['list']['label']['group_callback']))
		{
			$group = $GLOBALS['TL_DCA'][$this->strTable]['list']['label']['group_callback']($group, $mode, $field, $row, $this);
		}

		return $group;
	}
protected function formatGroupHeader ( $ field , $ value , $ mode , $ row ) { static $ lookup = array ( ) ; if ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'eval' ] [ 'isAssociative' ] || array_is_assoc ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'options' ] ) ) { $ group = $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'options' ] [ $ value ] ; } elseif ( \ is_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'options_callback' ] ) ) { if ( ! isset ( $ lookup [ $ field ] ) ) { $ 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 ) ; $ lookup [ $ field ] = $ this -> $ strClass -> $ strMethod ( $ this ) ; } $ group = $ lookup [ $ field ] [ $ value ] ; } else { $ group = \ is_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'reference' ] [ $ value ] ) ? $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'reference' ] [ $ value ] [ 0 ] : $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'reference' ] [ $ value ] ; } if ( empty ( $ group ) ) { $ group = \ is_array ( $ GLOBALS [ 'TL_LANG' ] [ $ this -> strTable ] [ $ value ] ) ? $ GLOBALS [ 'TL_LANG' ] [ $ this -> strTable ] [ $ value ] [ 0 ] : $ GLOBALS [ 'TL_LANG' ] [ $ this -> strTable ] [ $ value ] ; } if ( empty ( $ group ) ) { $ group = $ value ; if ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'fields' ] [ $ field ] [ 'eval' ] [ 'isBoolean' ] && $ value != '-' ) { $ group = \ 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' ] ; } } // Call the group callback ($group, $sortingMode, $firstOrderBy, $row, $this) if ( \ is_array ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'list' ] [ 'label' ] [ 'group_callback' ] ) ) { $ strClass = $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'list' ] [ 'label' ] [ 'group_callback' ] [ 0 ] ; $ strMethod = $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'list' ] [ 'label' ] [ 'group_callback' ] [ 1 ] ; $ this -> import ( $ strClass ) ; $ group = $ this -> $ strClass -> $ strMethod ( $ group , $ mode , $ field , $ row , $ this ) ; } elseif ( \ is_callable ( $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'list' ] [ 'label' ] [ 'group_callback' ] ) ) { $ group = $ GLOBALS [ 'TL_DCA' ] [ $ this -> strTable ] [ 'list' ] [ 'label' ] [ 'group_callback' ] ( $ group , $ mode , $ field , $ row , $ this ) ; } return $ group ; }
Return the formatted group header as string

@param string  $field
@param mixed   $value
@param integer $mode
@param array   $row

@return string
Return the formatted group header as string