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renderer.php
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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* @package block_dashboard
* @category blocks
* @author Valery Fremaux ([email protected])
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL
*/
defined('MOODLE_INTERNAL') || die();
/**
* Main renderer class for block dashboard
*/
class block_dashboard_renderer extends plugin_renderer_base {
/**
* Real raster that prints graphs and data
*/
public function render_dashboard($theblock) {
global $CFG, $extradbcnx, $COURSE, $DB, $OUTPUT, $PAGE;
$config = get_config('block_dashboard');
$sort = optional_param('tsort'.$theblock->instance->id, @$theblock->config->defaultsort, PARAM_TEXT);
$template = new StdClass;
// Print description.
if (isset($theblock->config->description)) {
// rewrite url.
$theblock->config->description = file_rewrite_pluginfile_urls($theblock->config->description, 'pluginfile.php',
$theblock->context->id, 'block_dashboard',
'description', null);
/*
* Default to FORMAT_HTML which is what will have been used before the
* editor was properly implemented for the block.
*/
$filteropt = new stdClass;
$filteropt->overflowdiv = true;
if ($theblock->content_is_trusted()) {
// fancy html allowed only on course, category and system blocks.
$filteropt->noclean = true;
}
$template->description = format_text($theblock->config->description, $theblock->config->descriptionformat, $filteropt);
}
$template->dhtmlxcalendarstyle = $this->dhtmlxcalendar_style();
if (!isset($theblock->config)) {
$theblock->config = new StdClass;
}
$theblock->config->limit = 20;
$coursepage = '';
if ($COURSE->format == 'page') {
include_once($CFG->dirroot.'/course/format/lib.php');
$pageid = optional_param('page', 0, PARAM_INT); // Flexipage page number.
if (!$pageid) {
$flexpage = course_page::get_current_page($COURSE->id);
} else {
$flexpage = new StdClass;
$flexpage->id = $pageid;
}
$coursepage = "&page=".$flexpage->id;
}
$rpage = optional_param('rpage'.$theblock->instance->id, 0, PARAM_INT); // Result page.
if ($rpage < 0) {
$rpage = 0;
}
// Editing security to avoid blocked dashboards blocking the ocurse page when displayed in block space.
if ($PAGE->user_is_editing() && !empty($config->enable_isediting_security) && $theblock->config->inblocklayout == 1) {
$template->errormsg = $OUTPUT->notification(get_string('editingnoexecute', 'block_dashboard'));
return $this->render_from_template('block_dashboard/dashboard', $template);
}
// Unlogged people cannot see their status.
if ((!isloggedin() || isguestuser()) && @$theblock->config->guestsallowed) {
$template->errormsg = $OUTPUT->notification(get_string('guestsnotallowed', 'block_dashboard'));
$loginstr = get_string('login');
$loginurl = new moodle_url('/login/index.php');
$template->errormsg .= '<a href="'.$loginurl.'">'.$loginstr.'</a>';
return $this->render_from_template('block_dashboard/dashboard', $template);
}
if (!isset($theblock->config) || empty($theblock->config->query)) {
$template->errormsg = $OUTPUT->notification(get_string('noquerystored', 'block_dashboard'));
return $this->render_from_template('block_dashboard/dashboard', $template);
}
if (!isset($config->big_result_threshold)) {
set_config('big_result_threshold', 500, 'block_dashboard');
$config->big_result_threshold = 500;
}
// Connecting.
if ($theblock->config->target == 'moodle') {
// Already connected.
} else {
$error = '';
if (!isset($extradbcnx)) {
$extradbcnx = extra_db_connect(true, $error);
}
if ($error) {
$template->errormsg = $error;
return $this->render_from_template('block_dashboard/dashboard', $template);
}
}
// Prepare all params from config.
$theblock->prepare_config();
$graphdata = array();
$ticks = array();
$filterquerystring = '';
if (!empty($theblock->params)) {
$filterquerystring = $theblock->prepare_params();
// Add expressed queryvars to url.
if (!empty($theblock->queryvars)) {
$bid = $theblock->instance->id;
foreach ($theblock->queryvars as $k => $v) {
$pair = "{$k}_{$bid}=$v";
$filterquerystring = ($filterquerystring) ? $filterquerystring.'&'.$pair : $pair ;
}
}
} else {
$theblock->sql = str_replace('<%%PARAMS%%>', '', $theblock->sql); // Needed to prepare for filter range prefetch.
$theblock->filteredsql = str_replace('<%%PARAMS%%>', '', $theblock->filteredsql); // Needed to prepare for filter range prefetch.
}
if (!empty($sort)) {
// Do not sort if already sorted in explained query.
if (!preg_match('/ORDER\s+BY/si', $theblock->sql)) {
$theblock->filteredsql .= " ORDER BY $sort";
}
}
// Preparing filters.
if (!empty($theblock->config->filters)) {
try {
$filterquerystring = ($filterquerystring) ? $filterquerystring.'&'.$theblock->prepare_filters() : $theblock->prepare_filters();
} catch (\block_dashboard\filter_query_exception $e) {
$filtersql = $theblock->filteredsql;
$template->errormsg = '<div class="dashboard-query-box">';
$template->errormsg .= '<pre>FILTER: '.$filtersql.'</pre>';
$template->errormsg .= $DB->get_last_error();
$template->errormsg .= '</div>';
$template->errormsg .= $OUTPUT->notification(get_string('invalidorobsoletefilterquery', 'block_dashboard'));
return $this->render_from_template('block_dashboard/dashboard', $template);
} catch (\block_dashboard\filter_query_cache_exception $e) {
$filtersql = $theblock->filteredsql;
$template->errormsg = '<div class="dashboard-query-box">';
$template->errormsg .= '<pre>FILTER: '.$filtersql.'</pre>';
$template->errormsg .= $DB->get_last_error();
$template->errormsg .= '</div>';
$template->errormsg .= $OUTPUT->notification(get_string('cachefilterqueryerror', 'block_dashboard'));
}
} else {
$theblock->filteredsql = str_replace('<%%FILTERS%%>', '', $theblock->sql);
}
// Needed to prepare for filter range prefetch.
$theblock->sql = str_replace('<%%FILTERS%%>', '', $theblock->sql);
$theblock->filteredsql = $theblock->protect($theblock->filteredsql);
// GETTING RESULTS ---------------------------------------------------.
try {
$countres = $theblock->count_records($error);
} catch (Exception $e) {
$countres = 0;
}
// If too many results, we force paging mode.
if (empty($theblock->config->pagesize) &&
($countres > $config->big_result_threshold) &&
!empty($theblock->config->bigresult)) {
$template->warningmsg = $OUTPUT->notification(get_string('toomanyrecordsusepaging', 'block_dashboard'));
$theblock->config->pagesize = $config->big_result_threshold;
$rpage = 0;
}
// Getting real results including page and offset.
if (!empty($theblock->config->pagesize)) {
$offset = $rpage * $theblock->config->pagesize;
} else {
$offset = '';
}
try {
$status = @$theblock->fetch_dashboard_data($theblock->filteredsql, $results, @$theblock->config->pagesize, $offset);
} catch (Exception $e) {
// Showing query.
$template->errormsg = '<div class="dashboard-query-box">';
$template->errormsg .= '<pre>'.$theblock->filteredsql.'</pre>';
$template->errormsg .= $DB->get_last_error();
$template->errormsg .= '</div>';
$template->errormsg .= $OUTPUT->notification(get_string('invalidorobsoletequery', 'block_dashboard'));
return $this->render_from_template('block_dashboard/dashboard', $template);
}
// Rotate results if required ---------------------------.
/*
* rotation has a strong effect on data structure, transforming flat recors
* into a data matrix that may be used to feed multiple graph series.
*/
if (block_dashboard_supports_feature('result/rotate')) {
if (!empty($theblock->config->queryrotatecols) &&
!empty($theblock->config->queryrotatenewkeys) &&
!empty($theblock->config->queryrotatepivot)) {
$results = dashboard_rotate_result($theblock, $results);
}
}
if (!$results) {
// No data, but render filters anyway.
$template->filterandparams = $this->filters_and_params_form($theblock, $sort);
$template->data = $OUTPUT->notification(get_string('nodata', 'block_dashboard'));
// Showing query.
if (@$theblock->config->showquery) {
$template->query = $theblock->filteredsql;
}
return $this->render_from_template('block_dashboard/dashboard', $template);
}
// process results -----------------------------------.
$filterquerystringadd = (isset($filterquerystring)) ? "&$filterquerystring" : '';
if (@$theblock->config->inblocklayout) {
$baseurl = new moodle_url('/course/view.php', array('id' => $COURSE->id));
$baseurl .= $coursepage.$filterquerystringadd;
} else {
$params = array('id' => $COURSE->id, 'blockid' => $theblock->instance->id);
$baseurl = new moodle_url('/blocks/dashboard/view.php', $params);
$baseurl .= $coursepage.$filterquerystringadd;
}
// Start prepare output table.
$table = new html_table();
$table->id = 'mod-dashboard'.$theblock->instance->id;
$table->class = 'dashboard';
$table->width = '100%';
$table->head = array();
$numcols = count($theblock->output);
foreach ($theblock->output as $field => $label) {
if (!empty($theblock->config->sortable)) {
$label .= $this->sort_controls($theblock, $field, $sort);
}
$table->head[$field] = $label;
$table->size[$field] = (100 / $numcols).'%';
}
foreach ($theblock->output as $field => $label) {
$table->colclasses[$field] = "$field";
}
if (!empty($theblock->config->pagesize)) {
$table->pagesize = min($theblock->config->pagesize, $countres); // No paginating at start.
}
$graphseries = array();
$treedata = array();
$treekeys = array();
$lastvalue = array();
$hcols = array();
$splitnumsonsort = @$theblock->config->splitsumsonsort;
foreach ($results as $result) {
// Prepare for subsums.
if (!empty($splitnumsonsort)) {
$orderkeyed = strtoupper($result->$splitnumsonsort);
if (!isset($oldorderkeyed)) {
$oldorderkeyed = $orderkeyed; // First time.
}
}
// Pre-aggregates sums.
if (!empty($theblock->config->shownumsums)) {
foreach (array_keys($theblock->numsumsf) as $numsum) {
if (empty($numsum)) {
continue;
}
if (!isset($result->$numsum)) {
continue;
}
/*
* make subaggregates (only for linear tables and when sorting criteria is the split column)
* post aggregate after table output
*/
if (!isset($theblock->aggr)) {
$theblock->aggr = new StdClass;
}
$theblock->aggr->$numsum = 0 + (float)@$theblock->aggr->$numsum + (float)$result->$numsum;
if (!empty($splitnumsonsort) && @$theblock->config->tabletype == 'linear' &&
(preg_match("/\\b$splitnumsonsort\\b/", $sort))) {
$theblock->subaggr[$orderkeyed]->$numsum = 0 + (float)@$theblock->subaggr[$orderkeyed]->$numsum + (float)$result->$numsum;
}
}
}
if (!empty($splitnumsonsort) &&
(@$theblock->config->tabletype == 'linear') &&
(preg_match("/\\b$splitnumsonsort\\b/", $sort))) {
if ($orderkeyed != $oldorderkeyed) {
// When range changes.
$k = 0;
$tabledata = null;
foreach (array_keys($theblock->output) as $field) {
if (in_array($field, array_keys($theblock->numsumsf))) {
if (is_null($tabledata)) {
$tabledata = array();
for ($j = 0; $j < $k; $j++) {
$tabledata[$j] = '';
}
}
$tabledata[$k] = '<b>Tot: '.@$theblock->subaggr[$oldorderkeyed]->$field.'</b>';
}
$k++;
}
if (!is_null($tabledata)) {
$table->data[] = $tabledata;
}
$oldorderkeyed = $orderkeyed;
}
}
// Print data in results.
if (!empty($theblock->config->showdata)) {
/*
* this is the most common case of a linear table
*/
if (empty($theblock->config->tabletype) ||
($theblock->config->tabletype == 'linear')) {
$theblock->prepare_linear_table($table, $result, $lastvalue);
} else if ($theblock->config->tabletype == 'tabular') {
// This is a tabular table.
/* in a tabular table, data can be placed :
* - in first columns in order of vertical keys
* the results are grabbed sequentially and distributed into the matrix columns
*/
$keystack = array();
$matrix = array();
foreach (array_keys($theblock->vertkeys->formats) as $vkey) {
if (empty($vkey)) {
continue;
}
$vkeyvalue = $result->$vkey;
$vkeyvalue = dashboard_format_data($theblock->vertkeys->formats[$vkey], $vkeyvalue, null, $result);
$matrix[] = "['".str_replace("'", "\'", $vkeyvalue)."']";
}
$hkey = $theblock->config->horizkey;
$hkeyvalue = (!empty($hkey)) ? $result->$hkey : '';
$matrix[] = "['".str_replace("'", "\'", $hkeyvalue)."']";
$matrixst = "\$m".implode($matrix);
if (!in_array($hkeyvalue, $hcols)) {
$hcols[] = $hkeyvalue;
}
// Now put the cell value in it.
$outvalues = array();
foreach (array_keys($theblock->output) as $field) {
// Did we ask for cumulative results ?
$cumulativeix = null;
if (preg_match('/S\((.+?)\)/', $field, $matches)) {
$field = $matches[1];
$cumulativeix = $theblock->instance->id.'_'.$field;
}
// Try to defer this formating as post formatting in cross table print.
if (!empty($theblock->outputf[$field])) {
$datum = dashboard_format_data($theblock->outputf[$field], $result->$field, $cumulativeix, $result);
} else {
$datum = dashboard_format_data(null, @$result->$field, $cumulativeix, $result);
}
if (!empty($theblock->config->colorfield) &&
($theblock->config->colorfield == $field)) {
$datum = dashboard_colour_code($theblock, $datum, $theblock->colourcoding);
}
$outvalues[] = str_replace("\"", "\\\"", $datum);
}
$matrixst .= ' = "'.implode(' ',$outvalues).'";';
// Make the matrix in memory.
eval($matrixst.";");
} else {
$debug = optional_param('debug', false, PARAM_BOOL);
$template->debug = '';
// Treeview.
$resultarr = array_values((array)$result);
$resultid = $resultarr[0];
if (!empty($parentserie)) {
if (!empty($result->$parentserie)) {
// Non root node, attache to his parent if we found it.
if (array_key_exists($result->$parentserie, $treekeys)) {
if (!empty($debug)) {
$template->debug .= 'binding to '. $result->$parentserie.'. ';
}
$treekeys[$result->$parentserie]->childs[$resultid] = $result;
if (!array_key_exists($resultid, $treekeys)) {
$treekeys[$resultid] = $result;
}
} else {
// In case nodes do not come in correct order, do not connect but register only.
if (!empty($debug)) {
$template->debug .= 'waiting for '. $result->$parentserie.'. ';
}
$waitingnodes[$resultid] = $result;
if (!array_key_exists($resultid, $treekeys)) {
$treekeys[$resultid] = $result;
}
}
} else {
// Root node.
if (!empty($debug)) {
$template->debug .= 'root as '. $resultid.'. ';
}
if (!array_key_exists($resultid, $treekeys)) {
$treekeys[$resultid] = $result;
}
$treedata[$resultid] = &$treekeys[$resultid];
}
} else {
if (!array_key_exists($resultid, $treekeys)) {
$treekeys[$resultid] = $result;
}
}
}
}
// Prepare data for graphs.
if (!empty($theblock->config->showgraph)) {
if (!empty($theblock->config->xaxisfield) &&
$theblock->config->graphtype != 'googlemap' &&
$theblock->config->graphtype != 'timeline') {
$xaxisfield = $theblock->config->xaxisfield;
if ($theblock->config->graphtype != 'pie') {
// Linear, bars.
// TODO : check if $theblock->config->xaxisfield exists really (misconfiguration).
$ticks[] = addslashes($result->$xaxisfield);
$ys = 0;
foreach (array_keys($theblock->yseries) as $yserie) {
// Did we ask for cumulative results ?
$cumulativeix = null;
if (preg_match('/S\((.+?)\)/', $yserie, $matches)) {
$yserie = $matches[1];
$cumulativeix = $theblock->instance->id.'_'.$yserie;
}
if (!isset($result->$yserie)) {
continue;
}
if ($theblock->config->graphtype != 'timegraph') {
if (!empty($theblock->yseriesf[$yserie])) {
$graphseries[$yserie][] = dashboard_format_data($theblock->yseriesf[$yserie], $result->$yserie, $cumulativeix, $result);
} else {
$graphseries[$yserie][] = dashboard_format_data(null, $result->$yserie, $cumulativeix, $result);
}
} else {
if (!empty($theblock->yseriesf[$yserie])) {
$timeelm = array($result->$xaxisfield, dashboard_format_data($theblock->yseriesf[$yserie], $result->$yserie, $cumulativeix, $result));
$graphseries[$ys][] = $timeelm;
} else {
$timeelm = array($result->$xaxisfield, dashboard_format_data(null, $result->$yserie, $cumulativeix, $result));
$graphseries[$ys][] = $timeelm;
}
}
$ys++;
}
} else if ($theblock->config->graphtype == 'pie') {
foreach (array_keys($theblock->yseriesf) as $yserie) {
if (empty($result->$xaxisfield)) {
$result->$xaxisfield = 'N.C.';
}
if (!empty($theblock->yseriesf[$field])) {
$graphseries[$yserie][] = array($result->$xaxisfield, dashboard_format_data($theblock->yseriesf[$field], $result->$yserie, false, $result));
} else {
$graphseries[$yserie][] = array($result->$xaxisfield, $result->$yserie);
}
}
}
} else {
$data[] = $result;
}
}
}
$graphdata = array_values($graphseries);
// Post aggregating last subtotal ----------------------------------------.
if (!empty($theblock->config->shownumsums) && $results) {
if (!empty($splitnumsonsort) &&
(@$theblock->config->tabletype == 'linear') &&
(preg_match("/\\b$splitnumsonsort\\b/", $sort))) {
$k = 0;
$tabledata = null;
foreach (array_keys($theblock->output) as $field) {
if (in_array($field, array_keys($theblock->numsumsf))) {
if (is_null($tabledata)) {
$tabledata = array();
for ($j = 0; $j < $k; $j++) {
$tabledata[$j] = '';
}
}
$tabledata[$k] = '<b>Tot: '.@$theblock->subaggr[$orderkeyed]->$field.'</b>';
}
$k++;
}
$oldorderkeyed = $orderkeyed;
if (!is_null($tabledata)) {
$table->data[] = $tabledata;
}
}
}
// Starting outputing data -------------------------------------------------.
// If treeview, need to post process waiting nodes.
if (@$theblock->config->tabletype == 'treeview') {
if (!empty($waitingnodes)) {
foreach ($waitingnodes as $wnid => $wn) {
if (array_key_exists($wn->$parentserie, $treekeys)) {
if (!empty($debug)) {
$template->debug .= ' postbinding to '. $wn->$parentserie.'. ';
}
$treekeys[$wn->$parentserie]->childs[$wnid] = $wn;
unset($waitingnodes[$wnid]); // Free some stuff.
}
}
}
}
if (@$theblock->config->inblocklayout) {
$params = array('id' => $COURSE->id.$coursepage, 'tsort'.$theblock->instance->id => $sort);
$url = new moodle_url('/course/view.php', $params);
} else {
$params = array('id' => $COURSE->id,
'blockid' => $theblock->instance->id.$coursepage,
'tsort'.$theblock->instance->id => $sort);
$url = new moodle_url('/blocks/dashboard/view.php', $params);
}
$template->filterandparams = $this->filters_and_params_form($theblock, $sort);
if ($theblock->config->showdata) {
$filterquerystring = (!empty($filterquerystring)) ? '&'.$filterquerystring : '';
if (empty($theblock->config->tabletype) ||
@$theblock->config->tabletype == 'linear') {
$template->data = html_writer::table($table);
$template->controlbuttons = $this->export_buttons($theblock, $filterquerystring);
} else if (@$theblock->config->tabletype == 'tabular') {
// Forget table and use $m matrix for making display.
$template->data = $this->cross_table($theblock,
$m,
$hcols,
$theblock->config->horizkey,
$theblock->vertkeys,
$theblock->config->horizlabel,
true);
$template->controlbuttons = $this->tabular_buttons($theblock, $filterquerystring);
} else {
$template->data = $this->tree_view($theblock,
$treedata,
$theblock->treeoutput,
$theblock->output,
$theblock->outputf,
$theblock->colourcoding,
true);
$template->controlbuttons = $this->tree_buttons($theblock, $filterquerystring);
}
}
// Showing graph.
if (!empty($theblock->config->showgraph) && !empty($theblock->config->graphtype)) {
$graphdesc = $theblock->dashboard_graph_properties();
if ($theblock->config->graphtype != 'googlemap' && $theblock->config->graphtype != 'timeline') {
$data = $graphdata;
$template->graph = local_vflibs_jqplot_print_graph('dashboard'.$theblock->instance->id, $graphdesc, $data,
$theblock->config->graphwidth, $theblock->config->graphheight,
'', true, $ticks);
} else if ($theblock->config->graphtype == 'googlemap') {
$template->graph = $this->googlemaps_data($theblock, $data, $graphdesc);
} else {
// Timeline graph.
if (empty($theblock->config->timelineeventstart) || empty($theblock->config->timelineeventend)) {
$template->graph = $OUTPUT->notification("Missing mappings (start or titles)", 'notifyproblem');
} else {
$template->graph = timeline_print_graph($theblock,
'dashboard'.$theblock->instance->id,
$theblock->config->graphwidth,
$theblock->config->graphheight,
$data,
true);
}
}
}
// Showing bottom summators.
if ($theblock->config->numsums) {
$template->summators = $this->numsums($theblock, $theblock->aggr);
}
// Showing query.
if (@$theblock->config->showquery) {
$template->query = $theblock->filteredsql;
}
// Showing SQL benches.
if (@$theblock->config->showbenches) {
$rows = array();
foreach ($theblock->benches as $bench) {
$row = new StdClass;
$row->name = $bench->name;
$row->value = $bench->end - $bench->start;
$rows[] = $row;
}
$template->benchrows = $rows;
}
return $this->render_from_template('block_dashboard/dashboard', $template);
}
/**
* An HTML raster for a matrix cross table
* printing raster uses a recursive cell drilldown over dynamic matrix dimension
*
* @param ibject $theblock a dashboard block instance
* @param arrayref &$m the data matrix
* @param arrayref &$hcols an array f vertical columns descriptors
* @param string $hkey the name of the dimension that deploys the horizontal columns
* @param arrayref &$vkeys the dimension descriptors that will key vertically the results lines
* @param string $hlabel the label for the horizontal dimension
*/
public function cross_table(&$theblock, &$m, &$hcols, $hkey, &$vkeys, $hlabel, $return = false) {
$str = '';
$this->table_header($str, $hcols, $vkeys, $hlabel, @$theblock->config->horizsums);
// Print flipped array.
$path = array();
$subsums = new StdClass;
$subsums->subs = array();
$subsums->all = array();
dashboard_table_explore_rec($theblock, $str, $path, $hcols, $m, $vkeys, $hlabel, count($vkeys->formats), $subsums);
if (!empty($theblock->config->vertsums)) {
// If vertsums are enabled, print vertsubs.
$str .= '<tr>';
$span = count($vkeys->labels);
$subtotalstr = get_string('subtotal', 'block_dashboard');
$str .= "<td colspan=\"{$span}\">$subtotalstr</td>";
foreach ($hcols as $col) {
$str.= '<td class="coltotal">'.$subsums->subs[$col].'</td>';
}
if (!empty($theblock->config->horizsums)) {
$str .= '<td></td>';
}
$str .= '</tr>';
// Print big total.
$str .= '<tr>';
$span = count($vkeys->labels);
$subtotalstr = get_string('total', 'block_dashboard');
$str .= "<td colspan=\"{$span}\">$subtotalstr</td>";
foreach ($hcols as $col) {
$str.= '<td class="coltotal"><b>'.$subsums->all[$col].'</b></td>';
}
if (!empty($theblock->config->horizsums)) {
$str .= '<td></td>';
}
$str .= '</tr>';
}
$str .= '</table>';
if ($return) {
return $str;
}
echo $str;
}
/**
* prints the table header cleverly depending on hkey and options
* @param stringref &$str the output buffer
* @param arrayref &$hcols the array of horizontal column descriptors
* @param arrayref &$vkeys the dimension descriptors that will key vertically the results lines
* @param string $hlabel the label for the horizontal dimension
* @param bool $horizsums do we display line summators at end of line ?
*/
public function table_header(&$str, &$hcols, &$vkeys, $hlabel, $horizsums = false) {
$str .= '<table width="100%" class="dashboard-table">';
$vkc = 0;
foreach ($vkeys->labels as $vk) {
$vkc++;
}
if (!empty($hlabel)) {
$str .= '<tr valign="top" class="row">';
if ($vkc > 1) {
$str .= '<th colspan="'.$vkc.'"> </th>';
} else {
$str .= '<th class="c0"> </th>';
}
$str .= '<th class="dashboard-horiz-serie" colspan="'.count($hcols).'">'.$hlabel.'</th>';
$str .= '</tr>';
}
$str .= '<tr class="row">';
$vlabels = array_values($vkeys->labels);
foreach ($vkeys->labels as $vk => $vlabel) {
$str .= '<td class="dashboard-vertical-series">'.$vlabel.'</td>';
}
foreach ($hcols as $hc) {
$str .= '<td class="hkey">'.$hc.'</td>';
}
if ($horizsums) {
$totalstr = get_string('total', 'block_dashboard');
$str .= '<td class="hkeytotal">'.$totalstr.'</td>';
}
// Close title line.
$str .= '</tr>';
}
/**
* prints a smart tree with data
* @param objectref $theblock full block information
* @param structref $tree the tree organized representation of records
* @param arrayref $treeoutput an array of pair column,format information for making the tree node name
* @param arrayref $outputfields an array of fields for tree node value information
* @param arrayref $outputformats formats for above
* @param arrayref $colourcoding an array of colour coding rules issued from table scope colourcoding settings
*/
public function tree_view(&$theblock, &$tree, &$treeoutput, &$outputfields, &$outputformats, &$colorcoding) {
global $PAGE;
if (!block_dashboard_supports_feature('data/treeview')) {
return 'Not supported in this distribution';
}
include_once($CFG->dirroot.'/blocks/dashboard/classes/output/renderer.php');
$prorenderer = new \block_dashboard\output\pro_renderer($PAGE, 'html');
return $prorenderer->tree_view($theblock, $tree, $treeoutput, $outputfields, $outputformats, $colorcoding);
}
/**
* prints and format data for googlemap plotting.
*/
public function googlemaps_data(&$theblock, &$data, &$graphdesc) {
global $PAGE;
if (!block_dashboard_supports_feature('graph/google')) {
return 'Not supported in this distribution';
}
include_once($CFG->dirroot.'/blocks/dashboard/classes/output/renderer.php');
$prorenderer = new \block_dashboard\output\pro_renderer($PAGE, 'html');
return $prorenderer->googlemaps_data($theblock, $data, $graphdesc);
}
/**
* print forms for filters and user defined live parameters
* @param objectref &$theblock a dashboard block instance
* @param string $sort name of the actual sorting column
*/
public function filters_and_params_form(&$theblock, $sort) {
global $COURSE, $CFG;
$text = '';
if (empty($theblock->config->filters) && empty($theblock->params)) {
return;
}
$template = new StdClass;
$template->blockid = $theblock->instance->id;
$template->courseid = $COURSE->id;
$template->inblocklayout = @$theblock->config->inblocklayout;
$template->blockidparam = optional_param('blockid', 0, PARAM_INT);
if ($COURSE->format == 'page') {
require_once($CFG->dirroot.'/course/format/page/classes/page.class.php');
$pageid = optional_param('page', false, PARAM_INT);
$template->ispageformatpage = !empty($pageid);
if ($page = course_page::get_current_page($COURSE->id)) {
$template->pageid = $page->id;
}
}
if ($sort == 'id DESC') {
$sort = '';
}
$template->sort = $sort;
$template->strdofilter = get_string('dofilter', 'block_dashboard');
$template->autosubmit = (count(array_keys($theblock->filters)) + count(array_keys($theblock->params))) <= 1;
if (!empty($theblock->config->filters)) {
// Fill template with filters.
$this->filters($theblock, $template);
if (!empty($template->hasmultiple)) {
$template->autosubmit = false;
}
}
if (!empty($theblock->params)) {
$template->params = $this->params($theblock);
}
return $this->render_from_template('block_dashboard/filterandparamsform', $template);
}
/**
* get value range, print and sets up data filters
* @param objectref $theblock instance of a dashboard block
* @param string $javascripthandler if empty, no onchange handler is required. Filter change
* is triggered by an explicit button.
*
* Javascript handler is provided when preparing form overrounding.
*/
public function filters(&$theblock, &$template) {
$alllabels = array_keys($theblock->filterfields->labels);
foreach ($alllabels as $afield) {
if (empty($afield)) {
// Protects against empty filterset.
continue;
}
$filtertpl = new StdClass;
$cond = isset($theblock->filterfields->translations[$afield]);
$filtertpl->fieldname = ($cond) ? $theblock->filterfields->translations[$afield] : $afield;
$filterresults = $theblock->filter_get_results($afield, $filtertpl->fieldname, false, false, $str);
if ($filterresults) {
$filteropts = array();
if (!$theblock->is_filter_single($afield)) {
$filteropts['*'] = '*';
}
foreach (array_values($filterresults) as $value) {
// Removes table scope explicitators.
$radical = preg_replace('/^.*\./', '', $filtertpl->fieldname);
$filteropts[$value->$radical] = $value->$radical;
}
$filtertpl->multiple = (strstr($theblock->filterfields->options[$afield], 'm') === false) ? false : true;
$arrayform = ($filtertpl->multiple) ? '[]' : '';
if (!is_array(@$theblock->filtervalues[$radical])) {
$unslashedvalue = stripslashes(@$theblock->filtervalues[$radical]);
} else {
$unslashedvalue = $theblock->filtervalues[$radical];
}
// Build the select options.
$attrs = array();
if ($filtertpl->multiple) {
$template->hasmultiple = true;
$filtertpl->multiple = true;
$attrs['multiple'] = 1;
$attrs['size'] = 8;
}
if ($theblock->is_filter_global($afield)) {
$key = "filter0_{$radical}{$arrayform}";
$attrs['class'] = 'dashboard-filter-element-'.$theblock->instance->id;
$filtertpl->filterselect = html_writer::select($filteropts, $key, $unslashedvalue, null, $attrs);
} else {
$key = "filter{$theblock->instance->id}_{$radical}{$arrayform}";
$attrs['class'] = 'dashboard-filter-element-'.$theblock->instance->id;
$filtertpl->filterselect = html_writer::select($filteropts, $key, $unslashedvalue, null, $attrs);
}
}
$template->filters[] = $filtertpl;
}
}
/**
* if there are some user params, print widgets for them. If one of them is a daterange,
* then cancel the javascripthandler as we will need to explictely submit.
*
* @param objectref $theblock a dashboard block instance
* @param string $javascripthandler if empty, no onchange handler is required. Filter change
* is triggered by an explicit button.
*/
public function params(&$theblock) {
$template = new Stdclass;
$template->strfrom = get_string('from', 'block_dashboard');
$template->strto = get_string('to', 'block_dashboard');
foreach ($theblock->params as $key => $param) {
$param->paramkey = preg_replace('/[.() *]/', '', $key).'_'.$theblock->instance->id;
switch ($param->type) {
case 'choice':
$param->choice = true;
$values = explode("\n", $param->values);
$param->value0checked = ($param->value == $values[0]) ? 'checked="checked"' : '';
$param->value1checked = ($param->value == $values[1]) ? 'checked="checked"' : '';
$param->quotedvalue0 = htmlentities($values[0], ENT_QUOTES, 'UTF-8');
$param->value0 = $values[0];
$param->quotedvalue1 = htmlentities($values[1], ENT_QUOTES, 'UTF-8');
$param->value1 = $values[1];
break;
case 'text':
$param->text = true;
$param->quotedvalue = htmlentities($param->value, ENT_QUOTES, 'UTF-8');
break;
case 'select':
$param->list = true;
$param->options = array();
$option = new Stdclass;
$option->selected = empty($param->value) ? ' selected="selected" ' : '';
$option->value = '';
$option->label = get_string('selectnone', 'block_dashboard');
$param->options[] = $option;
$values = explode("\n", $param->values);
foreach ($values as $v) {
// Resolve potential multipart definition.
if (strpos($v, '|') !== false) {
list($key, $label) = explode('|', trim($v));
} else {
$key = htmlentities(trim($v), ENT_QUOTES, 'UTF-8');
$label = trim($v);
}
$option = new Stdclass;