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libraries/joomla/grid/grid.php
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libraries/joomla/grid/grid.php
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<?php
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/**
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* JGrid class to dynamically generate HTML tables
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*
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* @package Joomla.Platform
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* @subpackage Grid
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE
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*/
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defined('JPATH_PLATFORM') or die;
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/**
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* JGrid class to dynamically generate HTML tables
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*
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* @package Joomla.Platform
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* @subpackage Grid
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* @since 11.3
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*/
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class JGrid
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{
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/**
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* Array of columns
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* @var array
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* @since 11.3
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*/
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protected $columns = array();
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/**
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* Current active row
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* @var int
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* @since 11.3
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*/
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protected $activeRow = 0;
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/**
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* Rows of the table (including header and footer rows)
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* @var array
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* @since 11.3
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*/
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protected $rows = array();
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/**
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* Header and Footer row-IDs
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* @var array
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* @since 11.3
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*/
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protected $specialRows = array('header' => array(), 'footer' => array());
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/**
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* Associative array of attributes for the table-tag
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* @var array
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* @since 11.3
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*/
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protected $options;
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/**
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* Constructor for a JGrid object
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*
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* @param array $options Associative array of attributes for the table-tag
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*
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* @since 11.3
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*/
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public function __construct($options = array())
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{
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$this->setTableOptions($options, true);
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}
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/**
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* Magic function to render this object as a table.
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*
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* @return string
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*
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* @since 11.3
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*/
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public function __toString()
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{
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return $this->toString();
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}
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/**
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* Method to set the attributes for a table-tag
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*
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* @param array $options Associative array of attributes for the table-tag
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* @param bool $replace Replace possibly existing attributes
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*
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* @return JGrid This object for chaining
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*
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* @since 11.3
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*/
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public function setTableOptions($options = array(), $replace = false)
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{
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if ($replace)
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{
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$this->options = $options;
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}
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else
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{
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$this->options = array_merge($this->options, $options);
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}
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return $this;
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}
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/**
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* Get the Attributes of the current table
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*
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* @return array Associative array of attributes
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*
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* @since 11.3
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*/
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public function getTableOptions()
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{
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return $this->options;
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}
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/**
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* Add new column name to process
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*
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* @param string $name Internal column name
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*
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* @return JGrid This object for chaining
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*
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* @since 11.3
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*/
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public function addColumn($name)
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{
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$this->columns[] = $name;
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return $this;
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}
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/**
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* Returns the list of internal columns
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*
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* @return array List of internal columns
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*
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* @since 11.3
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*/
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public function getColumns()
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{
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return $this->columns;
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}
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/**
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* Delete column by name
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*
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* @param string $name Name of the column to be deleted
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*
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* @return JGrid This object for chaining
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*
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* @since 11.3
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*/
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public function deleteColumn($name)
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{
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$index = array_search($name, $this->columns);
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if ($index !== false)
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{
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unset($this->columns[$index]);
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$this->columns = array_values($this->columns);
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}
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return $this;
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}
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/**
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* Method to set a whole range of columns at once
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* This can be used to re-order the columns, too
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*
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* @param array $columns List of internal column names
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*
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* @return JGrid This object for chaining
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*
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* @since 11.3
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*/
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public function setColumns($columns)
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{
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$this->columns = array_values($columns);
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return $this;
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}
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/**
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* Adds a row to the table and sets the currently
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* active row to the new row
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*
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* @param array $options Associative array of attributes for the row
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* @param int $special 1 for a new row in the header, 2 for a new row in the footer
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*
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* @return JGrid This object for chaining
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*
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* @since 11.3
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*/
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public function addRow($options = array(), $special = false)
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{
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$this->rows[]['_row'] = $options;
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$this->activeRow = count($this->rows) - 1;
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if ($special)
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{
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if ($special === 1)
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{
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$this->specialRows['header'][] = $this->activeRow;
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}
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else
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{
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$this->specialRows['footer'][] = $this->activeRow;
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}
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}
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return $this;
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}
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/**
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* Method to get the attributes of the currently active row
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*
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* @return array Associative array of attributes
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*
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* @since 11.3
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*/
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public function getRowOptions()
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{
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return $this->rows[$this->activeRow]['_row'];
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}
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/**
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* Method to set the attributes of the currently active row
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*
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* @param array $options Associative array of attributes
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*
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* @return JGrid This object for chaining
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*
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* @since 11.3
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*/
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public function setRowOptions($options)
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{
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$this->rows[$this->activeRow]['_row'] = $options;
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return $this;
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}
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/**
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* Get the currently active row ID
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*
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* @return int ID of the currently active row
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*
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* @since 11.3
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*/
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public function getActiveRow()
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{
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return $this->activeRow;
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}
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/**
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* Set the currently active row
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*
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* @param int $id ID of the row to be set to current
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*
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* @return JGrid This object for chaining
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*
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* @since 11.3
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*/
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public function setActiveRow($id)
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{
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$this->activeRow = (int) $id;
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return $this;
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}
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/**
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* Set cell content for a specific column for the
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* currently active row
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*
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* @param string $name Name of the column
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* @param string $content Content for the cell
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* @param array $option Associative array of attributes for the td-element
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* @param bool $replace If false, the content is appended to the current content of the cell
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*
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* @return JGrid This object for chaining
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*
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* @since 11.3
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*/
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public function setRowCell($name, $content, $option = array(), $replace = true)
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{
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if ($replace || !isset($this->rows[$this->activeRow][$name]))
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{
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$cell = new stdClass;
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$cell->options = $option;
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$cell->content = $content;
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$this->rows[$this->activeRow][$name] = $cell;
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}
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else
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{
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$this->rows[$this->activeRow][$name]->content .= $content;
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$this->rows[$this->activeRow][$name]->options = $option;
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}
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return $this;
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}
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/**
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* Get all data for a row
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*
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* @param int $id ID of the row to return
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*
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* @return array Array of columns of a table row
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*
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* @since 11.3
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*/
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public function getRow($id = false)
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{
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if ($id === false)
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{
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$id = $this->activeRow;
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}
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if (isset($this->rows[(int) $id]))
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{
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return $this->rows[(int) $id];
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}
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else
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{
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return false;
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}
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}
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/**
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* Get the IDs of all rows in the table
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*
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* @param int $special false for the standard rows, 1 for the header rows, 2 for the footer rows
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*
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* @return array Array of IDs
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*
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* @since 11.3
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*/
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public function getRows($special = false)
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{
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if ($special)
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{
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if ($special === 1)
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{
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return $this->specialRows['header'];
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}
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else
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{
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return $this->specialRows['footer'];
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}
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}
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return array_diff(array_keys($this->rows), array_merge($this->specialRows['header'], $this->specialRows['footer']));
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}
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/**
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* Delete a row from the object
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*
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* @param int $id ID of the row to be deleted
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*
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* @return JGrid This object for chaining
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*
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* @since 11.3
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*/
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public function deleteRow($id)
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{
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unset($this->rows[$id]);
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if (in_array($id, $this->specialRows['header']))
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{
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unset($this->specialRows['header'][array_search($id, $this->specialRows['header'])]);
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}
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if (in_array($id, $this->specialRows['footer']))
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{
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unset($this->specialRows['footer'][array_search($id, $this->specialRows['footer'])]);
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}
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if ($this->activeRow == $id)
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{
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end($this->rows);
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$this->activeRow = key($this->rows);
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}
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return $this;
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}
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/**
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* Render the HTML table
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*
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* @return string The rendered HTML table
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*
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* @since 11.3
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*/
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public function toString()
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{
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$output = array();
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$output[] = '<table' . $this->renderAttributes($this->getTableOptions()) . '>';
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if (count($this->specialRows['header']))
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{
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$output[] = $this->renderArea($this->specialRows['header'], 'thead', 'th');
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}
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if (count($this->specialRows['footer']))
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{
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$output[] = $this->renderArea($this->specialRows['footer'], 'tfoot');
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}
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$ids = array_diff(array_keys($this->rows), array_merge($this->specialRows['header'], $this->specialRows['footer']));
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if (count($ids))
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{
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$output[] = $this->renderArea($ids);
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}
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$output[] = '</table>';
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return implode('', $output);
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}
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/**
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* Render an area of the table
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*
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* @param array $ids IDs of the rows to render
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* @param string $area Name of the area to render. Valid: tbody, tfoot, thead
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* @param string $cell Name of the cell to render. Valid: td, th
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*
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* @return string The rendered table area
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*
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* @since 11.3
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*/
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protected function renderArea($ids, $area = 'tbody', $cell = 'td')
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{
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$output = array();
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$output[] = '<' . $area . ">\n";
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foreach ($ids as $id)
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{
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$output[] = "\t<tr" . $this->renderAttributes($this->rows[$id]['_row']) . ">\n";
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foreach ($this->getColumns() as $name)
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{
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if (isset($this->rows[$id][$name]))
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{
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$column = $this->rows[$id][$name];
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$output[] = "\t\t<" . $cell . $this->renderAttributes($column->options) . '>' . $column->content . '</' . $cell . ">\n";
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}
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}
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$output[] = "\t</tr>\n";
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}
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$output[] = '</' . $area . '>';
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return implode('', $output);
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}
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/**
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* Renders an HTML attribute from an associative array
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*
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* @param array $attributes Associative array of attributes
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*
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* @return string The HTML attribute string
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*
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* @since 11.3
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*/
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protected function renderAttributes($attributes)
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{
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if (count((array) $attributes) == 0)
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{
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return '';
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}
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$return = array();
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foreach ($attributes as $key => $option)
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{
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$return[] = $key . '="' . $option . '"';
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}
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return ' ' . implode(' ', $return);
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}
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}
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