nicolasconnault
250 lines
12 KiB
PHP
250 lines
12 KiB
PHP
<?php
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///////////////////////////////////////////////////////////////////////////
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// //
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// NOTICE OF COPYRIGHT //
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// //
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// Moodle - Modular Object-Oriented Dynamic Learning Environment //
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// http://moodle.org //
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// //
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// Copyright (C) 1999 onwards Martin Dougiamas http://moodle.com //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation; either version 2 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details: //
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// //
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// http://www.gnu.org/copyleft/gpl.html //
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// //
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///////////////////////////////////////////////////////////////////////////
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/**
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* Generates XML output that describes a visualization and is
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* sent to the flash/flex front end. The output is based on the
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* visualizations classes found in ./visualizations
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*/
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/// Get a session id from the URI request and make a cookie
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/// for it temparaly. This is needed as the flex application will
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/// not have the users oringal cookie and only the session information
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/// witch is passed to it.
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$cookiewasset = false;
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if(empty($_COOKIE) && isset($_GET['sessionid']) && isset($_GET['sessioncookie']) && isset($_GET['sessiontest'])) {
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$_COOKIE['MoodleSession' . $_GET['sessioncookie']] = $_GET['sessionid'];
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$_COOKIE['MoodleSessionTest' . $_GET['sessioncookie']] = $_GET['sessiontest'];
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$cookiewasset = true;
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}
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require_once '../../../config.php';
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require_once $CFG->dirroot.'/grade/report/visual/lib.php';
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require_once $CFG->libdir.'/phpxml/xml.php';
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$visname = required_param('visid');
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$courseid = required_param('id');
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/// basic access checks
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if(isset($DB) && !is_null($DB)) {
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$course = $DB->get_record('course', array('id' => $courseid));
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} else {
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$course = get_record('course', 'id', $courseid);
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}
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if (!$course) {
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print_error('nocourseid');
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}
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require_login($course);
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$context = get_context_instance(CONTEXT_COURSE, $course->id);
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require_capability('gradereport/visual:view', $context);
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$vis = grade_report_visual::get_visualization($visname, $context);
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/// Make sure the user is allowed see this visualization
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require_capability($vis->capability, $context);
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/// Turn of error reporting as hummans will not be seeing
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/// this and it will be read by the front end. Notices and
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/// warnings will break the XML format and stop the
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/// front end from working.
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error_reporting(0);
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/// Define array that repersents the XML output from the
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/// visualization class selected.
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$settings = array();
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$settings['visualization'] = array();
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$settings['visualization']['name'] = $vis->name;
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$settings['visualization']['classname'] = get_class($vis);
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$settings['visualization']['layout'] = array();
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$settings['visualization']['layout']['type'] = $vis->layout;
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$settings['visualization']['layout']['xaxis'] = array();
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$settings['visualization']['layout']['yaxis'] = array();
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$settings['visualization']['layout']['xaxis']['field'] = 'data.' . $vis->xaxis;
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$settings['visualization']['layout']['yaxis']['field'] = 'data.' . $vis->yaxis;
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$settings['visualization']['layout']['xaxis']['labelformat'] = $vis->xaxislabelformat;
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$settings['visualization']['layout']['yaxis']['labelformat'] = $vis->yaxislabelformat;
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$settings['visualization']['layout']['xaxis']['min'] = $vis->xaxismin;
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$settings['visualization']['layout']['xaxis']['max'] = $vis->xaxismax;
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$settings['visualization']['layout']['yaxis']['min'] = $vis->yaxismin;
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$settings['visualization']['layout']['yaxis']['max'] = $vis->yaxismax;
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$settings['visualization']['layout']['yaxis']['xoffset'] =$vis->yaxisxoffset;
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$settings['visualization']['layout']['yaxis']['yoffset'] =$vis->yaxisyoffset;
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$settings['visualization']['layout']['xaxis']['xoffset'] =$vis->xaxisxoffset;
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$settings['visualization']['layout']['xaxis']['yoffset'] =$vis->xaxisyoffset;
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if($vis->layoutsettings != null) {
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$settings['visualization']['layout']['setting'] = array();
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for($i = 0; $i < count($vis->layoutsettings); $i++) {
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$settings['visualization']['layout']['setting'][$i] = $vis->layoutsettings[$i];
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}
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}
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if($vis->edges != null) {
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$settings['visualization']['edge'] = array();
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for($i = 0; $i < count($vis->edges); $i++) {
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$settings['visualization']['edge'][$i] = array();
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if(is_array($vis->edges[$i]->sortby)) {
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$settings['visualization']['edge'][$i]['sortby'] = array();
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for($k = 0; $k < count($vis->edges[$i]->sortby); $k++) {
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$settings['visualization']['edge'][$i]['sortby'][$k] = 'data.' . $vis->edges[$i]->sortby[$k];
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}
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} else {
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$settings['visualization']['edge'][$i]['sortby'] = 'data.' . $vis->edges[$i]->sortby;
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}
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if(is_array($vis->edges[$i]->groupby)) {
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$settings['visualization']['edge'][$i]['groupby'] = array();
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for($k = 0; $k < count($vis->edges[$i]->groupby); $k++) {
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$settings['visualization']['edge'][$i]['groupby'][$k] = 'data.' . $vis->edges[$i]->groupby[$k];
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}
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} else {
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$settings['visualization']['edge'][$i]['groupby'] = 'data.' . $vis->edges[$i]->groupby;
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}
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}
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}
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if($vis->encoders != null) {
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$settings['visualization']['encoder'] = array();
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for($i = 0; $i < count($vis->encoders); $i++) {
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$settings['visualization']['encoder'][$i] = array();
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$settings['visualization']['encoder'][$i]['id'] = $vis->encoders[$i]->id;
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$settings['visualization']['encoder'][$i]['type'] = $vis->encoders[$i]->type;
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$settings['visualization']['encoder'][$i]['datafield'] = 'data.' . $vis->encoders[$i]->datafield;
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if($vis->encoders[$i]->settings != null) {
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$settings['visualization']['encoder'][$i]['setting'] = array();
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for($j = 0; $j < count($vis->encoders[$i]->settings); $j++) {
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$settings['visualization']['encoder'][$i]['setting'][$j] = $vis->encoders[$i]->settings[$j];
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}
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}
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}
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}
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if($vis->legends != null) {
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$settings['visualization']['legend'] = array();
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for($i = 0; $i < count($vis->legends); $i++) {
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$settings['visualization']['legend'][$i] = array();
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$settings['visualization']['legend'][$i]['encoderid'] = $vis->legends[$i]->encoder->id;
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$settings['visualization']['legend'][$i]['datafield'] = 'data.' . $vis->legends[$i]->encoder->datafield;
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if($vis->legends[$i]->show != null) {
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$settings['visualization']['legend'][$i]['show'] = array();
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for($j = 0; $j < count($vis->legends[$i]->show); $j++) {
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$settings['visualization']['legend'][$i]['show'][$j] = $vis->legends[$i]->show[$j];
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}
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}
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}
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}
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if($vis->selectors != null) {
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$settings['visualization']['selector'] = array();
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for($i = 0; $i < count($vis->selectors); $i++) {
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$settings['visualization']['selector'][$i] = array();
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$settings['visualization']['selector'][$i]['param'] = $vis->selectors[$i]->param;
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$settings['visualization']['selector'][$i]['active'] = $vis->selectors[$i]->active;
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if($vis->selectors[$i]->options != null) {
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$settings['visualization']['selector'][$i]['option'] = array();
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$k = 0;
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foreach($vis->selectors[$i]->options as $value=>$title) {
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$settings['visualization']['selector'][$i]['option'][$k] = array();
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$settings['visualization']['selector'][$i]['option'][$k]['title'] = $title;
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$settings['visualization']['selector'][$i]['option'][$k]['value'] = $value;
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$k++;
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}
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}
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}
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}
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/// TODO: add in capabilities data
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$settings['visualization']['capabilities'] = array();
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$settings['visualization']['flash'] = array();
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$settings['visualization']['flash']['width'] = $vis->width;
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$settings['visualization']['flash']['height'] = $vis->height;
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$settings['visualization']['flash']['framerate'] = $vis->framerate;
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$settings['visualization']['flash']['quality'] = $vis->quality;
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$settings['visualization']['labels'] = array();
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$settings['visualization']['labels']['xaxis'] = $vis->xaxislabel;
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$settings['visualization']['labels']['yaxis'] = $vis->yaxislabel;
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$settings['visualization']['labels']['title'] = $vis->title;
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$settings['visualization']['style'] = array();
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$settings['visualization']['style']['nodeshape'] = $vis->nodeshape;
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$settings['visualization']['style']['edgeshape'] = $vis->edgeshape;
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$settings['visualization']['style']['bgcolor'] = $vis->backgroundcolor;
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$settings['visualization']['style']['text'] = array();
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$settings['visualization']['style']['text']['font'] = $vis->font;
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$settings['visualization']['style']['text']['size'] = $vis->fontsize;
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$settings['visualization']['style']['button'] = array();
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$settings['visualization']['style']['button']['bgcolor'] = $vis->buttonbgcolor;
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$settings['visualization']['style']['button']['alpha'] = $vis->buttonbgalpha;
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$settings['visualization']['style']['button']['text'] = array();
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$settings['visualization']['style']['button']['text']['font'] = $vis->buttonfont;
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$settings['visualization']['style']['button']['text']['size'] = $vis->buttonfontsize;
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$settings['visualization']['style']['button']['line'] = array();
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$settings['visualization']['style']['button']['line']['size'] = $vis->buttonlinesize;
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$settings['visualization']['style']['button']['line']['color'] = $vis->buttonlinecolor;
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$settings['visualization']['style']['button']['line']['alpha'] = $vis->buttonlinealpha;
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$settings['visualization']['style']['popup'] = array();
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$settings['visualization']['style']['popup']['bgcolor'] = $vis->popupbgcolor;
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$settings['visualization']['style']['popup']['alpha'] = $vis->popupbgalpha;
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$settings['visualization']['style']['popup']['text'] = array();
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$settings['visualization']['style']['popup']['text']['font'] = $vis->popupfont;
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$settings['visualization']['style']['popup']['text']['size'] = $vis->popupfontsize;
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$settings['visualization']['style']['popup']['line'] = array();
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$settings['visualization']['style']['popup']['line']['size'] = $vis->popuplinesize;
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$settings['visualization']['style']['popup']['line']['color'] = $vis->popuplinecolor;
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$settings['visualization']['style']['popup']['line']['alpha'] = $vis->popuplinealpha;
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$settings['visualization']['lang'] = array();
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$settings['visualization']['lang']['hide'] = get_string('hide', 'gradereport_visual');
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$settings['visualization']['lang']['show'] = get_string('show', 'gradereport_visual');
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$settings['visualization']['lang']['xlabels'] = get_string('xlabels', 'gradereport_visual');
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$settings['visualization']['lang']['ylabels'] = get_string('ylabels', 'gradereport_visual');
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$settings['visualization']['lang']['axes'] = get_string('axes', 'gradereport_visual');
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$settings['visualization']['lang']['invertaxes'] = get_string('invertaxes', 'gradereport_visual');
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/// Turn array into XML string and output.
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$xml = XML_serialize($settings);
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echo $xml;
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/// Clean up cookie if it was created.
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if($cookiewasset) {
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$_COOKIE['MoodleSession' . $_GET['sessioncookie']] = null;
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$_COOKIE['MoodleSessionTest' . $_GET['sessioncookie']] = null;
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}
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?>
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