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73e4f58953
There is an active hard limit in there which does not allow more than two, but changing this is as simple as setting $maxsortkeys to something else.
507 lines
17 KiB
PHP
507 lines
17 KiB
PHP
<?php // $Id$
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class flexible_table {
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var $uniqueid = NULL;
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var $attributes = array();
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var $headers = array();
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var $columns = array();
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var $column_style = array();
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var $column_class = array();
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var $column_suppress = array();
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var $setup = false;
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var $sess = NULL;
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var $baseurl = NULL;
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var $is_collapsible = false;
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var $is_sortable = false;
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var $use_pages = false;
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var $use_initials = false;
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var $maxsortkeys = 2;
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var $pagesize = 30;
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var $currpage = 0;
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var $totalrows = 0;
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function flexible_table($uniqueid) {
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$this->uniqueid = $uniqueid;
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}
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function sortable($bool) {
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$this->is_sortable = $bool;
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}
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function collapsible($bool) {
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$this->is_collapsible = $bool;
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}
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function pageable($bool) {
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$this->use_pages = $bool;
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}
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function initialbars($bool) {
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$this->use_initials = $bool;
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}
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function pagesize($perpage, $total) {
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$this->pagesize = $perpage;
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$this->totalrows = $total;
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$this->use_pages = true;
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}
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function set_attribute($attribute, $value) {
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$this->attributes[$attribute] = $value;
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}
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function column_suppress($column) {
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if(isset($this->column_suppress[$column])) {
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$this->column_suppress[$column] = true;
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}
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}
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function column_class($column, $classname) {
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if(isset($this->column_class[$column])) {
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$this->column_class[$column] = ' '.$classname; // This space needed so that classnames don't run together in the HTML
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}
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}
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function column_style($column, $property, $value) {
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if(isset($this->column_style[$column])) {
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$this->column_style[$column][$property] = $value;
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}
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}
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function column_style_all($property, $value) {
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foreach(array_keys($this->columns) as $column) {
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$this->column_style[$column][$property] = $value;
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}
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}
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function define_baseurl($url) {
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$this->reseturl = $url;
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if(!strpos($url, '?')) {
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$this->baseurl = $url.'?';
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}
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else {
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$this->baseurl = $url.'&';
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}
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}
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function define_columns($columns) {
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$this->columns = array();
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$this->column_style = array();
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$this->column_class = array();
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$colnum = 0;
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foreach($columns as $column) {
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$this->columns[$column] = $colnum++;
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$this->column_style[$column] = array();
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$this->column_class[$column] = '';
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$this->column_suppress[$column] = false;
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}
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}
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function define_headers($headers) {
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$this->headers = $headers;
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}
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function make_styles_string(&$styles) {
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if(empty($styles)) {
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return '';
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}
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$string = ' style="';
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foreach($styles as $property => $value) {
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$string .= $property.':'.$value.';';
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}
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$string .= '"';
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return $string;
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}
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function make_attributes_string(&$attributes) {
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if(empty($attributes)) {
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return '';
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}
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$string = ' ';
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foreach($attributes as $attr => $value) {
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$string .= ($attr.'="'.$value.'" ');
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}
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return $string;
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}
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function setup() {
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global $SESSION, $CFG;
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if(empty($this->columns) || empty($this->uniqueid)) {
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return false;
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}
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if(!isset($SESSION->flextable) || isset($SESSION->flextable) && $SESSION->flextable->uniqueid != $this->uniqueid) {
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$SESSION->flextable = new stdClass;
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$SESSION->flextable->uniqueid = $this->uniqueid;
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$SESSION->flextable->collapse = array();
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$SESSION->flextable->sortby = array();
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$SESSION->flextable->i_first = '';
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$SESSION->flextable->i_last = '';
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}
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$this->sess = &$SESSION->flextable;
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if(!empty($_GET['tshow']) && isset($this->columns[$_GET['tshow']])) {
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// Show this column
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$this->sess->collapse[$_GET['tshow']] = false;
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}
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else if(!empty($_GET['thide']) && isset($this->columns[$_GET['thide']])) {
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// Hide this column
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$this->sess->collapse[$_GET['thide']] = true;
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if(array_key_exists($_GET['thide'], $this->sess->sortby)) {
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unset($this->sess->sortby[$_GET['thide']]);
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}
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}
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// Now, update the column attributes for collapsed columns
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foreach(array_keys($this->columns) as $column) {
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if(!empty($this->sess->collapse[$column])) {
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$this->column_style[$column]['width'] = '10px';
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}
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}
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if(
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!empty($_GET['tsort']) &&
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(isset($this->columns[$_GET['tsort']]) ||
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(($_GET['tsort'] == 'firstname' || $_GET['tsort'] == 'lastname') && isset($this->columns['fullname']))
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))
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{
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if(empty($this->sess->collapse[$_GET['tsort']])) {
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if(array_key_exists($_GET['tsort'], $this->sess->sortby)) {
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// This key already exists somewhere. Change its sortorder and bring it to the top.
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$sortorder = $this->sess->sortby[$_GET['tsort']] == SORT_ASC ? SORT_DESC : SORT_ASC;
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unset($this->sess->sortby[$_GET['tsort']]);
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$this->sess->sortby = array_merge(array($_GET['tsort'] => $sortorder), $this->sess->sortby);
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}
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else {
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// Key doesn't exist, so just add it to the beginning of the array, ascending order
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$this->sess->sortby = array_merge(array($_GET['tsort'] => SORT_ASC), $this->sess->sortby);
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}
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// Finally, make sure that no more than $this->maxsortkeys are present into the array
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if(!empty($this->maxsortkeys) && ($sortkeys = count($this->sess->sortby)) > $this->maxsortkeys) {
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while($sortkeys-- > $this->maxsortkeys) {
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array_pop($this->sess->sortby);
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}
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}
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}
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}
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if(isset($_GET['tilast'])) {
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if(empty($_GET['tilast']) || is_numeric(strpos(get_string('alphabet'), $_GET['tilast']))) {
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$this->sess->i_last = $_GET['tilast'];
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}
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}
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if(isset($_GET['tifirst'])) {
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if(empty($_GET['tifirst']) || is_numeric(strpos(get_string('alphabet'), $_GET['tifirst']))) {
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$this->sess->i_first = $_GET['tifirst'];
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}
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}
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if(empty($this->baseurl)) {
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$getcopy = $_GET;
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unset($getcopy['tshow']);
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unset($getcopy['thide']);
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unset($getcopy['tsort']);
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unset($getcopy['tifirst']);
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unset($getcopy['tilast']);
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unset($getcopy['page']);
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$strippedurl = strip_querystring(qualified_me());
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if(!empty($getcopy)) {
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$first = false;
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$querystring = '';
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foreach($getcopy as $var => $val) {
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if(!$first) {
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$first = true;
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$querystring .= '?'.$var.'='.$val;
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}
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else {
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$querystring .= '&'.$var.'='.$val;
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}
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}
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$this->reseturl = $strippedurl.$querystring;
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$querystring .= '&';
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}
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else {
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$this->reseturl = $strippedurl.$querystring;
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$querystring = '?';
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}
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$this->baseurl = strip_querystring(qualified_me()) . $querystring;
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}
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// If it's "the first time" we 've been here, forget the previous initials filters
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if(qualified_me() == $this->reseturl) {
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$this->sess->i_first = '';
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$this->sess->i_last = '';
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}
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$this->currpage = optional_param('page', 0);
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$this->setup = true;
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}
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function get_sql_sort() {
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if(!$this->setup) {
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return false;
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}
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if(!empty($this->sess->sortby)) {
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$sortstring = '';
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foreach($this->sess->sortby as $column => $order) {
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if(!empty($sortstring)) {
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$sortstring .= ', ';
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}
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$sortstring .= $column.($order == SORT_ASC ? ' ASC' : ' DESC');
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}
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return $sortstring;
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}
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return '';
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}
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function get_page_start() {
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if(!$this->use_pages) {
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return '';
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}
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return $this->currpage * $this->pagesize;
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}
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function get_page_size() {
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if(!$this->use_pages) {
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return '';
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}
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return $this->pagesize;
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}
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function get_sql_where() {
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if(!isset($this->columns['fullname'])) {
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return '';
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}
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$LIKE = sql_ilike();
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if(!empty($this->sess->i_first) && !empty($this->sess->i_last)) {
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return 'firstname '.$LIKE.' \''.$this->sess->i_first.'%\' AND lastname '.$LIKE.' \''.$this->sess->i_last.'%\'';
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}
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else if(!empty($this->sess->i_first)) {
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return 'firstname '.$LIKE.' \''.$this->sess->i_first.'%\'';
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}
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else if(!empty($this->sess->i_last)) {
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return 'lastname '.$LIKE.' \''.$this->sess->i_last.'%\'';
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}
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return '';
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}
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function print_html() {
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global $CFG;
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if(!$this->setup) {
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return false;
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}
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$colcount = count($this->columns);
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// Do we need to print initial bars?
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if($this->use_initials && isset($this->columns['fullname'])) {
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$strall = get_string('all');
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$alpha = explode(',', get_string('alphabet'));
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// Bar of first initials
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echo '<div class="initialbar">'.get_string('firstname').' : ';
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if(!empty($this->sess->i_first)) {
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echo '<a href="'.$this->baseurl.'tifirst=">'.$strall.'</a>';
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} else {
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echo '<strong>'.$strall.'</strong>';
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}
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foreach ($alpha as $letter) {
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if ($letter == $this->sess->i_first) {
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echo ' <strong>'.$letter.'</strong>';
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} else {
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echo ' <a href="'.$this->baseurl.'tifirst='.$letter.'">'.$letter.'</a>';
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}
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}
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echo '</div>';
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// Bar of last initials
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echo '<div class="initialbar">'.get_string('lastname').' : ';
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if(!empty($this->sess->i_last)) {
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echo '<a href="'.$this->baseurl.'tilast=">'.$strall.'</a>';
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} else {
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echo '<strong>'.$strall.'</strong>';
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}
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foreach ($alpha as $letter) {
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if ($letter == $this->sess->i_last) {
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echo ' <strong>'.$letter.'</strong>';
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} else {
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echo ' <a href="'.$this->baseurl.'tilast='.$letter.'">'.$letter.'</a>';
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}
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}
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echo '</div>';
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}
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// End of initial bars code
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// Paging bar
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if($this->use_pages) {
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print_paging_bar($this->totalrows, $this->currpage, $this->pagesize, $this->baseurl);
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}
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if(empty($this->data)) {
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return;
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}
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$suppress_enabled = array_sum($this->column_suppress);
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$suppress_lastrow = NULL;
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// Start of main data table
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echo '<table'.$this->make_attributes_string($this->attributes).'>';
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echo '<tr>';
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foreach($this->columns as $column => $index) {
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$icon_hide = '';
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$icon_sort = '';
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if($this->is_collapsible) {
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if(!empty($this->sess->collapse[$column])) {
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$icon_hide = ' <a href="'.$this->baseurl.'tshow='.$column.'"><img src="'.$CFG->pixpath.'/t/switch_plus.gif" title="'.get_string('show').' '.$this->headers[$index].'" /></a>';
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}
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else if($this->headers[$index] !== NULL) {
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$icon_hide = ' <a href="'.$this->baseurl.'thide='.$column.'"><img src="'.$CFG->pixpath.'/t/switch_minus.gif" title="'.get_string('hide').' '.$this->headers[$index].'" /></a>';
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}
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}
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$primary_sort_column = '';
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$primary_sort_order = '';
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if(reset($this->sess->sortby)) {
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$primary_sort_column = key($this->sess->sortby);
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$primary_sort_order = current($this->sess->sortby);
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}
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switch($column) {
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case 'fullname':
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if($this->is_sortable) {
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$icon_sort_first = $icon_sort_last = '';
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if($primary_sort_column == 'firstname') {
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if($primary_sort_order == SORT_ASC) {
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$icon_sort_first = ' <img src="'.$CFG->pixpath.'/t/down.gif" />';
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}
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else {
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$icon_sort_first = ' <img src="'.$CFG->pixpath.'/t/up.gif" />';
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}
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}
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else if($primary_sort_column == 'lastname') {
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if($primary_sort_order == SORT_ASC) {
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$icon_sort_last = ' <img src="'.$CFG->pixpath.'/t/down.gif" />';
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}
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else {
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$icon_sort_last = ' <img src="'.$CFG->pixpath.'/t/up.gif" />';
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}
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}
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$this->headers[$index] = '<a href="'.$this->baseurl.'tsort=firstname">'.get_string('firstname').'</a> '.$icon_sort_first.' / '.
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'<a href="'.$this->baseurl.'tsort=lastname">'.get_string('lastname').'</a> '.$icon_sort_last;
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}
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break;
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default:
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if($this->is_sortable) {
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if($primary_sort_column == $column) {
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if($primary_sort_order == SORT_ASC) {
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$icon_sort = ' <img src="'.$CFG->pixpath.'/t/down.gif" />';
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}
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else {
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$icon_sort = ' <img src="'.$CFG->pixpath.'/t/up.gif" />';
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}
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}
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$this->headers[$index] = '<a href="'.$this->baseurl.'tsort='.$column.'">'.$this->headers[$index].'</a>';
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}
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}
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if($this->headers[$index] === NULL) {
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echo '<th class="header c'.$index.$this->column_class[$column].'"> </th>';
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}
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else if(!empty($this->sess->collapse[$column])) {
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echo '<th class="header c'.$index.$this->column_class[$column].'">'.$icon_hide.'</th>';
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}
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else {
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echo '<th class="header c'.$index.$this->column_class[$column].'" nowrap="nowrap"'.$this->make_styles_string($this->column_style[$column]).'>'.$this->headers[$index].$icon_sort.'<div class="commands">'.$icon_hide.'</div></th>';
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}
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}
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echo '</tr>';
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if(!empty($this->data)) {
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$oddeven = 1;
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$colbyindex = array_flip($this->columns);
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foreach($this->data as $row) {
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$oddeven = $oddeven ? 0 : 1;
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echo '<tr class="r'.$oddeven.'">';
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// If we have a separator, print it
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if($row === NULL && $colcount) {
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echo '<td colspan="'.$colcount.'"><div class="tabledivider"></div></td>';
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}
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else {
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foreach($row as $index => $data) {
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if($index >= $colcount) {
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break;
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}
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$column = $colbyindex[$index];
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echo '<td class="cell c'.$index.$this->column_class[$column].'"'.$this->make_styles_string($this->column_style[$column]).'>';
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if(empty($this->sess->collapse[$column])) {
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if($this->column_suppress[$column] && $suppress_lastrow !== NULL && $suppress_lastrow[$index] === $data) {
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echo ' ';
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}
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else {
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echo $data;
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}
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}
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else {
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echo ' ';
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}
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echo '</td>';
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}
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}
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echo '</tr>';
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if($suppress_enabled) {
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$suppress_lastrow = $row;
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}
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}
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}
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echo '</table>';
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}
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function add_data($row) {
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if(!$this->setup) {
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return false;
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}
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$this->data[] = $row;
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}
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function add_separator() {
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if(!$this->setup) {
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return false;
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}
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$this->data[] = NULL;
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}
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}
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?>
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