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682 lines
23 KiB
682 lines
23 KiB
<?php
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2005-2008 Dokeos S.A.
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Copyright (c) Bart Mollet (bart.mollet@hogent.be)
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact address: Dokeos, 44 rue des palais, B-1030 Brussels, Belgium
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Mail: info@dokeos.com
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==============================================================================
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*/
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require_once "HTML/Table.php"; //See http://pear.php.net/package/HTML_Table
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require_once "Pager/Pager.php"; //See http://pear.php.net/package/Pager
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require_once 'tablesort.lib.php';
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/**
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* This class allows you to display a sortable data-table. It is possible to
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* split the data in several pages.
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* Using this class you can:
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* - automatically create checkboxes of the first table column
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* - a "select all" and "deselect all" link is added
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* - only if you provide a list of actions for the selected items
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* - click on the table header to sort the data
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* - choose how many items you see per page
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* - navigate through all data-pages
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*/
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class SortableTable extends HTML_Table
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{
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/**
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* A name for this table
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*/
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var $table_name;
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/**
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* The page to display
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*/
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var $page_nr;
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/**
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* The column to sort the data
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*/
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var $column;
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/**
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* The sorting direction (ASC or DESC)
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*/
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var $direction;
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/**
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* Number of items to display per page
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*/
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var $per_page;
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/**
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* The default number of items to display per page
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*/
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var $default_items_per_page;
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/**
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* A prefix for the URL-parameters, can be used on pages with multiple
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* SortableTables
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*/
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var $param_prefix;
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/**
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* The pager object to split the data in several pages
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*/
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var $pager;
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/**
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* The total number of items in the table
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*/
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var $total_number_of_items;
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/**
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* The function to get the total number of items
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*/
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var $get_total_number_function;
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/**
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* The function to the the data to display
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*/
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var $get_data_function;
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/**
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* An array with defined column-filters
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*/
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var $column_filters;
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/**
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* A list of actions which will be available through a select list
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*/
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var $form_actions;
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/**
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* Additional parameters to pass in the URL
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*/
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var $additional_parameters;
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/**
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* Additional attributes for the th-tags
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*/
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var $th_attributes;
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/**
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* Additional attributes for the td-tags
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*/
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var $td_attributes;
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/**
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* Array with names of the other tables defined on the same page of this
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* table
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*/
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var $other_tables;
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/**
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* Create a new SortableTable
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* @param string $table_name A name for the table (default = 'table')
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* @param string $get_total_number_function A user defined function to get
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* the total number of items in the table
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* @param string $get_data_function A function to get the data to display on
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* the current page
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* @param int $default_column The default column on which the data should be
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* sorted
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* @param int $default_items_per_page The default number of items to show
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* on one page
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* @param string $default_order_direction The default order direction;
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* either the constant 'ASC' or 'DESC'
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*/
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function SortableTable($table_name = 'table', $get_total_number_function = null, $get_data_function = null, $default_column = 1, $default_items_per_page = 20, $default_order_direction = 'ASC')
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{
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parent :: HTML_Table(array ('class' => 'data_table'));
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$this->table_name = $table_name;
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$this->additional_parameters = array ();
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$this->param_prefix = $table_name.'_';
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$this->page_nr = isset ($_SESSION[$this->param_prefix.'page_nr']) ? $_SESSION[$this->param_prefix.'page_nr'] : 1;
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$this->page_nr = isset ($_GET[$this->param_prefix.'page_nr']) ? $_GET[$this->param_prefix.'page_nr'] : $this->page_nr;
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$this->column = isset ($_SESSION[$this->param_prefix.'column']) ? $_SESSION[$this->param_prefix.'column'] : $default_column;
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$this->column = isset ($_GET[$this->param_prefix.'column']) ? $_GET[$this->param_prefix.'column'] : $this->column;
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$this->direction = isset ($_SESSION[$this->param_prefix.'direction']) ? $_SESSION[$this->param_prefix.'direction'] : $default_order_direction;
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$this->direction = isset ($_GET[$this->param_prefix.'direction']) ? $_GET[$this->param_prefix.'direction'] : $this->direction;
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$this->per_page = isset ($_SESSION[$this->param_prefix.'per_page']) ? $_SESSION[$this->param_prefix.'per_page'] : $default_items_per_page;
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$this->per_page = isset ($_GET[$this->param_prefix.'per_page']) ? $_GET[$this->param_prefix.'per_page'] : $this->per_page;
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$_SESSION[$this->param_prefix.'per_page'] = $this->per_page;
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$_SESSION[$this->param_prefix.'direction'] = $this->direction ;
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$_SESSION[$this->param_prefix.'page_nr'] = $this->page_nr;
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$_SESSION[$this->param_prefix.'column'] = $this->column;
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$this->pager = null;
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$this->default_items_per_page = $default_items_per_page;
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$this->total_number_of_items = -1;
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$this->get_total_number_function = $get_total_number_function;
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$this->get_data_function = $get_data_function;
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$this->column_filters = array ();
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$this->form_actions = array ();
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$this->checkbox_name = null;
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$this->td_attributes = array ();
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$this->th_attributes = array ();
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$this->other_tables = array();
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}
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/**
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* Get the Pager object to split the showed data in several pages
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*/
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function get_pager()
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{
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if (is_null($this->pager))
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{
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$total_number_of_items = $this->get_total_number_of_items();
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$params['mode'] = 'Sliding';
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$params['perPage'] = $this->per_page;
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$params['totalItems'] = $total_number_of_items;
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$params['urlVar'] = $this->param_prefix.'page_nr';
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$params['currentPage'] = $this->page_nr;
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$params['prevImg'] = '<img src="'.api_get_path(WEB_CODE_PATH).'img/prev.png" style="vertical-align: middle;"/>';
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$params['nextImg'] = '<img src="'.api_get_path(WEB_CODE_PATH).'img/next.png" style="vertical-align: middle;"/>';
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$params['firstPageText'] = '<img src="'.api_get_path(WEB_CODE_PATH).'img/first.png" style="vertical-align: middle;"/>';
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$params['lastPageText'] = '<img src="'.api_get_path(WEB_CODE_PATH).'img/last.png" style="vertical-align: middle;"/>';
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$params['firstPagePre'] = '';
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$params['lastPagePre'] = '';
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$params['firstPagePost'] = '';
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$params['lastPagePost'] = '';
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$params['spacesBeforeSeparator'] = '';
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$params['spacesAfterSeparator'] = '';
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$query_vars = array_keys($_GET);
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$query_vars_needed = array ($this->param_prefix.'column', $this->param_prefix.'direction', $this->param_prefix.'per_page');
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if (count($this->additional_parameters) > 0)
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{
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$query_vars_needed = array_merge($query_vars_needed, array_keys($this->additional_parameters));
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}
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$query_vars_exclude = array_diff($query_vars, $query_vars_needed);
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$params['excludeVars'] = $query_vars_exclude;
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$this->pager = & Pager :: factory($params);
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}
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return $this->pager;
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}
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/**
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* Displays the table, complete with navigation buttons to browse through
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* the data-pages.
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*/
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function display()
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{
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global $charset;
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$empty_table = false;
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if ($this->get_total_number_of_items() == 0)
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{
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$cols = $this->getColCount();
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$this->setCellAttributes(1, 0, 'style="font-style: italic;text-align:center;" colspan='.$cols);
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$this->setCellContents(1, 0, get_lang('TheListIsEmpty'));
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$empty_table = true;
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}
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if (!$empty_table)
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{
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$form = $this->get_page_select_form();
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$nav = $this->get_navigation_html();
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$html = '<table style="width:100%;">';
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$html .= '<tr>';
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$html .= '<td style="width:25%;">';
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$html .= $form;
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$html .= '</td>';
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$html .= '<td style="text-align:center;">';
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$html .= $this->get_table_title();
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$html .= '</td>';
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$html .= '<td style="text-align:right;width:25%;">';
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$html .= $nav;
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$html .= '</td>';
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$html .= '</tr>';
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$html .= '</table>';
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if (count($this->form_actions) > 0)
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{
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$html .= '<script language="JavaScript" type="text/javascript">
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/*<![CDATA[*/
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function setCheckbox(value) {
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d = document.form_'.$this->table_name.';
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for (i = 0; i < d.elements.length; i++) {
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if (d.elements[i].type == "checkbox") {
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d.elements[i].checked = value;
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}
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}
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}
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/*]]>*/
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</script>';
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$params = $this->get_sortable_table_param_string.'&'.$this->get_additional_url_paramstring();
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$html .= '<form method="post" action="'.api_get_self().'?'.$params.'" name="form_'.$this->table_name.'">';
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}
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}
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$html .= $this->get_table_html();
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if (!$empty_table)
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{
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$html .= '<table style="width:100%;">';
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$html .= '<tr>';
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$html .= '<td colspan="2">';
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if (count($this->form_actions) > 0)
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{
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$html .= '<a href="?'.$params.'&'.$this->param_prefix.'selectall=1" onclick="javascript:setCheckbox(true);return false;">'.get_lang('SelectAll').'</a> - ';
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$html .= '<a href="?'.$params.'" onclick="javascript:setCheckbox(false);return false;">'.get_lang('UnSelectAll').'</a> ';
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$html .= '<select name="action">';
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foreach ($this->form_actions as $action => $label)
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{
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$html .= '<option value="'.$action.'">'.$label.'</option>';
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}
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$html .= '</select>';
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$html .= '<input type="submit" value="'.get_lang('Ok').'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang("ConfirmYourChoice"),ENT_QUOTES,$charset))."'".')) return false;"/>';
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}
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else
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{
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$html .= $form;
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}
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$html .= '</td>';
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$html .= '<td style="text-align:right;">';
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$html .= $nav;
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$html .= '</td>';
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$html .= '</tr>';
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$html .= '</table>';
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if (count($this->form_actions) > 0)
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{
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$html .= '</form>';
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}
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}
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echo $html;
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}
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/**
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* Get the HTML-code with the navigational buttons to browse through the
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* data-pages.
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*/
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function get_navigation_html()
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{
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$pager = $this->get_pager();
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$pager_links = $pager->getLinks();
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$showed_items = $pager->getOffsetByPageId();
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$nav = $pager_links['first'].' '.$pager_links['back'];
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$nav .= ' '.$pager->getCurrentPageId().' / '.$pager->numPages().' ';
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$nav .= $pager_links['next'].' '.$pager_links['last'];
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return $nav;
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}
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/**
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* Get the HTML-code with the data-table.
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*/
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function get_table_html()
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{
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$pager = $this->get_pager();
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$offset = $pager->getOffsetByPageId();
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$from = $offset[0] - 1;
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$table_data = $this->get_table_data($from);
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foreach ($table_data as $index => $row)
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{
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$row = $this->filter_data($row);
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$this->addRow($row);
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}
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$this->altRowAttributes(0, array ('class' => 'row_odd'), array ('class' => 'row_even'), true);
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foreach ($this->th_attributes as $column => $attributes)
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{
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$this->setCellAttributes(0, $column, $attributes);
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}
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foreach ($this->td_attributes as $column => $attributes)
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{
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$this->setColAttributes($column, $attributes);
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}
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return $this->toHTML();
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}
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/**
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* Get the HTML-code wich represents a form to select how many items a page
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* should contain.
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*/
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function get_page_select_form()
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{
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$total_number_of_items = $this->get_total_number_of_items();
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if ($total_number_of_items <= $this->default_items_per_page)
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{
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return '';
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}
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$result[] = '<form method="get" action="'.api_get_self().'" style="display:inline;">';
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$param[$this->param_prefix.'direction'] = $this->direction;
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$param[$this->param_prefix.'page_nr'] = $this->page_nr;
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$param[$this->param_prefix.'column'] = $this->column;
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$param = array_merge($param, $this->additional_parameters);
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foreach ($param as $key => $value)
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{
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$result[] = '<input type="hidden" name="'.$key.'" value="'.$value.'"/>';
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}
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$result[] = '<select name="'.$this->param_prefix.'per_page" onchange="javascript:this.form.submit();">';
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for ($nr = 10; $nr <= min(50, $total_number_of_items); $nr += 10)
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{
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$result[] = '<option value="'.$nr.'" '. ($nr == $this->per_page ? 'selected="selected"' : '').'>'.$nr.'</option>';
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}
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if ($total_number_of_items < 500)
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{
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$result[] = '<option value="'.$total_number_of_items.'" '. ($total_number_of_items == $this->per_page ? 'selected="selected"' : '').'>'.ucfirst(get_lang('All')).'</option>';
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}
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$result[] = '</select>';
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$result[] = '<noscript>';
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$result[] = '<input type="submit" value="'.get_lang('Ok').'"/>';
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$result[] = '</noscript>';
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$result[] = '</form>';
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$result = implode("\n", $result);
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return $result;
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}
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/**
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* Get the table title.
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*/
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function get_table_title()
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{
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$pager = $this->get_pager();
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$showed_items = $pager->getOffsetByPageId();
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return $showed_items[0].' - '.$showed_items[1].' / '.$this->get_total_number_of_items();
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}
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/**
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* Set the header-label
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* @param int $column The column number
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* @param string $label The label
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* @param boolean $sortable Is the table sortable by this column? (defatult
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* = true)
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* @param string $th_attributes Additional attributes for the th-tag of the
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* table header
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* @param string $td_attributes Additional attributes for the td-tags of the
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* column
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*/
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function set_header($column, $label, $sortable = true, $th_attributes = null, $td_attributes = null)
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{
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$param['direction'] = 'ASC';
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if ($this->column == $column && $this->direction == 'ASC')
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{
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$param['direction'] = 'DESC';
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}
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$param['page_nr'] = $this->page_nr;
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$param['per_page'] = $this->per_page;
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$param['column'] = $column;
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if ($sortable)
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{
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$link = '<a href="'.api_get_self().'?';
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foreach ($param as $key => $value)
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{
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$link .= $this->param_prefix.$key.'='.urlencode($value).'&';
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}
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$link .= $this->get_additional_url_paramstring();
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$link .= '">'.$label.'</a>';
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if ($this->column == $column)
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{
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$link .= $this->direction == 'ASC' ? ' ↓' : ' ↑';
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}
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}
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else
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{
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$link = $label;
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}
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$this->setHeaderContents(0, $column, $link);
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if (!is_null($td_attributes))
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{
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$this->td_attributes[$column] = $td_attributes;
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}
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if (!is_null($th_attributes))
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{
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$this->th_attributes[$column] = $th_attributes;
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}
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}
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/**
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* Get the parameter-string with additional parameters to use in the URLs
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* generated by this SortableTable
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*/
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function get_additional_url_paramstring()
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{
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$param_string_parts = array ();
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if(is_array($this->additional_parameters) && count($this->additional_parameters)>0)
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{
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foreach ($this->additional_parameters as $key => $value)
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{
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$param_string_parts[] = urlencode($key).'='.urlencode($value);
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}
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}
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$result = implode('&', $param_string_parts);
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foreach($this->other_tables as $index => $tablename)
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{
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$param = array();
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if( isset($_GET[$tablename.'_direction']))
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$param[$tablename.'_direction'] = $_GET[$tablename.'_direction'];
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if( isset($_GET[$tablename.'_page_nr']))
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$param[$tablename.'_page_nr'] = $_GET[$tablename.'_page_nr'];
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if( isset($_GET[$tablename.'_per_page']))
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$param[$tablename.'_per_page'] = $_GET[$tablename.'_per_page'];
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if( isset($_GET[$tablename.'_column']))
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$param[$tablename.'_column'] = $_GET[$tablename.'_column'];
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$param_string_parts = array ();
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foreach ($param as $key => $value)
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{
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$param_string_parts[] = urlencode($key).'='.urlencode($value);
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}
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if(count($param_string_parts) > 0)
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$result .= '&'.implode('&', $param_string_parts);
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}
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return $result;
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}
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/**
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* Get the parameter-string with the SortableTable-related parameters to use
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* in URLs
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*/
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function get_sortable_table_param_string()
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{
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$param[$this->param_prefix.'direction'] = $this->direction;
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$param[$this->param_prefix.'page_nr'] = $this->page_nr;
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$param[$this->param_prefix.'per_page'] = $this->per_page;
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$param[$this->param_prefix.'column'] = $this->column;
|
|
$param_string_parts = array ();
|
|
foreach ($param as $key => $value)
|
|
{
|
|
$param_string_parts[] = urlencode($key).'='.urlencode($value);
|
|
}
|
|
$res = implode('&', $param_string_parts);
|
|
return $res;
|
|
|
|
}
|
|
/**
|
|
* Add a filter to a column. If another filter was allready defined for the
|
|
* given column, it will be overwritten.
|
|
* @param int $column The number of the column
|
|
* @param string $function The name of the filter-function. This should be a
|
|
* function wich requires 1 parameter and returns the filtered value.
|
|
*/
|
|
function set_column_filter($column, $function)
|
|
{
|
|
$this->column_filters[$column] = $function;
|
|
}
|
|
/**
|
|
* Define a list of actions which can be performed on the table-date.
|
|
* If you define a list of actions, the first column of the table will be
|
|
* converted into checkboxes.
|
|
* @param array $actions A list of actions. The key is the name of the
|
|
* action. The value is the label to show in the select-box
|
|
* @param string $checkbox_name The name of the generated checkboxes. The
|
|
* value of the checkbox will be the value of the first column.
|
|
*/
|
|
function set_form_actions($actions, $checkbox_name = 'id')
|
|
{
|
|
$this->form_actions = $actions;
|
|
$this->checkbox_name = $checkbox_name;
|
|
}
|
|
/**
|
|
* Define a list of additional parameters to use in the generated URLs
|
|
* @param array $parameters
|
|
*/
|
|
function set_additional_parameters($parameters)
|
|
{
|
|
$this->additional_parameters = $parameters;
|
|
}
|
|
/**
|
|
* Set other tables on the same page.
|
|
* If you have other sortable tables on the page displaying this sortable
|
|
* tables, you can define those other tables with this function. If you
|
|
* don't define the other tables, there sorting and pagination will return
|
|
* to their default state when sorting this table.
|
|
* @param array $tablenames An array of table names.
|
|
*/
|
|
function set_other_tables($tablenames)
|
|
{
|
|
$this->other_tables = $tablenames;
|
|
}
|
|
/**
|
|
* Transform all data in a table-row, using the filters defined by the
|
|
* function set_column_filter(...) defined elsewhere in this class.
|
|
* If you've defined actions, the first element of the given row will be
|
|
* converted into a checkbox
|
|
* @param array $row A row from the table.
|
|
*/
|
|
function filter_data($row)
|
|
{
|
|
$url_params = $this->get_sortable_table_param_string().'&'.$this->get_additional_url_paramstring();
|
|
foreach ($this->column_filters as $column => $function)
|
|
{
|
|
$row[$column] = call_user_func($function, $row[$column], $url_params, $row);
|
|
}
|
|
if (count($this->form_actions) > 0)
|
|
{
|
|
if (strlen($row[0]) > 0)
|
|
{
|
|
$row[0] = '<input type="checkbox" name="'.$this->checkbox_name.'[]" value="'.$row[0].'"';
|
|
if (isset ($_GET[$this->param_prefix.'selectall']))
|
|
{
|
|
$row[0] .= ' checked="checked"';
|
|
}
|
|
$row[0] .= '/>';
|
|
}
|
|
}
|
|
foreach ($row as $index => $value)
|
|
{
|
|
if (strlen($row[$index]) == 0)
|
|
{
|
|
$row[$index] = '-';
|
|
}
|
|
}
|
|
return $row;
|
|
}
|
|
/**
|
|
* Get the total number of items. This function calls the function given as
|
|
* 2nd argument in the constructor of a SortableTable. Make sure your
|
|
* function has the same parameters as defined here.
|
|
*/
|
|
function get_total_number_of_items()
|
|
{
|
|
if ($this->total_number_of_items == -1 && !is_null($this->get_total_number_function))
|
|
{
|
|
$this->total_number_of_items = call_user_func($this->get_total_number_function);
|
|
}
|
|
return $this->total_number_of_items;
|
|
}
|
|
/**
|
|
* Get the data to display. This function calls the function given as
|
|
* 2nd argument in the constructor of a SortableTable. Make sure your
|
|
* function has the same parameters as defined here.
|
|
* @param int $from Index of the first item to return.
|
|
* @param int $per_page The number of items to return
|
|
* @param int $column The number of the column on which the data should be
|
|
* sorted
|
|
* @param string $direction In which order should the data be sorted (ASC
|
|
* or DESC)
|
|
*/
|
|
function get_table_data($from = null, $per_page = null, $column = null, $direction = null)
|
|
{
|
|
if (!is_null($this->get_data_function))
|
|
{
|
|
return call_user_func($this->get_data_function, $from, $this->per_page, $this->column, $this->direction);
|
|
}
|
|
return array ();
|
|
}
|
|
}
|
|
/**
|
|
* Sortable table which can be used for data available in an array
|
|
*/
|
|
class SortableTableFromArray extends SortableTable
|
|
{
|
|
/**
|
|
* The array containing all data for this table
|
|
*/
|
|
var $table_data;
|
|
/**
|
|
* Constructor
|
|
* @param array $table_data
|
|
* @param int $default_column
|
|
* @param int $default_items_per_page
|
|
*/
|
|
function SortableTableFromArray($table_data, $default_column = 1, $default_items_per_page = 20, $tablename = 'tablename')
|
|
{
|
|
parent :: SortableTable($tablename, null, null, $default_column, $default_items_per_page);
|
|
$this->table_data = $table_data;
|
|
}
|
|
/**
|
|
* Get table data to show on current page
|
|
* @see SortableTable#get_table_data
|
|
*/
|
|
function get_table_data($from = 1)
|
|
{
|
|
$content = TableSort :: sort_table($this->table_data, $this->column, $this->direction == 'ASC' ? SORT_ASC : SORT_DESC);
|
|
return array_slice($content, $from, $this->per_page);
|
|
}
|
|
/**
|
|
* Get total number of items
|
|
* @see SortableTable#get_total_number_of_items
|
|
*/
|
|
function get_total_number_of_items()
|
|
{
|
|
return count($this->table_data);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Sortable table which can be used for data available in an array
|
|
*
|
|
* Is a variation of SortableTableFromArray because we add 2 new arrays $column_show and $column_order
|
|
* $column_show is an array that lets us decide which are going to be the columns to show
|
|
* $column_order is an array that lets us decide the ordering of the columns
|
|
* i.e: $column_header=array('a','b','c','d','e'); $column_order=array(1,2,5,4,5);
|
|
* These means that the 3th column (letter "c") will be sort like the order we use in the 5th column
|
|
*/
|
|
|
|
class SortableTableFromArrayConfig extends SortableTable
|
|
{
|
|
/**
|
|
* The array containing the columns that will be show i.e $column_show=array('1','0','0'); we will show only the 1st column
|
|
*/
|
|
private $column_show;
|
|
|
|
/**
|
|
*The array containing the real sort column $column_order=array('1''4','3','4'); The 2nd column will be order like the 4th column
|
|
*/
|
|
private $column_order;
|
|
/**
|
|
* The array containing all data for this table
|
|
*/
|
|
private $table_data;
|
|
|
|
/**
|
|
* Constructor
|
|
* @param array $table_data All the information of the table
|
|
* @param int $default_column Default column that will be use in the sorts functions
|
|
* @param int $default_items_per_page quantity of pages that we are going to see
|
|
* @param int $tablename Name of the table
|
|
* @param array $column_show An array with binary values 1: we show the column 2: we don't show it
|
|
* @param array $column_order An array of integers that let us decide how the columns are going to be sort.
|
|
*/
|
|
public function SortableTableFromArrayConfig($table_data, $default_column = 1, $default_items_per_page = 20, $tablename = 'tablename',$column_show=null,$column_order=null,$direction='ASC')
|
|
{
|
|
$this->column_show=$column_show;
|
|
$this->column_order=$column_order;
|
|
|
|
parent :: SortableTable($tablename, null, null, $default_column, $default_items_per_page,$direction);
|
|
|
|
$this->table_data = $table_data;
|
|
}
|
|
/**
|
|
* Get table data to show on current page
|
|
* @see SortableTable#get_table_data
|
|
*/
|
|
public function get_table_data($from = 1)
|
|
{
|
|
$content = TableSort :: sort_table_config($this->table_data, $this->column, $this->direction == 'ASC' ? SORT_ASC : SORT_DESC ,$this->column_show, $this->column_order);
|
|
return array_slice($content, $from, $this->per_page);
|
|
}
|
|
|
|
/**
|
|
* Get total number of items
|
|
* @see SortableTable#get_total_number_of_items
|
|
*/
|
|
public function get_total_number_of_items()
|
|
{
|
|
return count($this->table_data);
|
|
}
|
|
}
|
|
?>
|