lesson MDL-23525 committing this fix after its passed the tests in the bug/QA.

[moodle.git] / course / report / completion / index.php

<?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/>.


/**
 * Course completion progress report
 *
 * @package   moodlecore
 * @copyright 2009 Catalyst IT Ltd
 * @author    Aaron Barnes <aaronb@catalyst.net.nz>
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
require_once('../../../config.php');
require_once($CFG->libdir.'/completionlib.php');

/**
 * Configuration
 */
define('COMPLETION_REPORT_PAGE',        25);
define('COMPLETION_REPORT_COL_TITLES',  true);

/**
 * Setup page, check permissions
 */

// Get course
$courseid = required_param('course', PARAM_INT);
$format = optional_param('format','',PARAM_ALPHA);
$sort = optional_param('sort','',PARAM_ALPHA);
$edituser = optional_param('edituser', 0, PARAM_INT);


$course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);

$url = new moodle_url('/course/report/completion/index.php', array('course'=>$course->id));
$PAGE->set_url($url);
$PAGE->set_pagelayout('standard');

$firstnamesort = ($sort == 'firstname');
$excel = ($format == 'excelcsv');
$csv = ($format == 'csv' || $excel);

// Whether to start at a particular position
$start = optional_param('start',0,PARAM_INT);

// Whether to show idnumber
$idnumbers = $CFG->grade_report_showuseridnumber;

// Function for quoting csv cell values
function csv_quote($value) {
    global $excel;
    if($excel) {
        $tl=textlib_get_instance();
        return $tl->convert('"'.str_replace('"',"'",$value).'"','UTF-8','UTF-16LE');
    } else {
        return '"'.str_replace('"',"'",$value).'"';
    }
}


// Check permissions
require_login($course);

$context=get_context_instance(CONTEXT_COURSE, $course->id);
require_capability('coursereport/completion:view', $context);

// Get group mode
$group = groups_get_course_group($course, true); // Supposed to verify group
if($group === 0 && $course->groupmode == SEPARATEGROUPS) {
    require_capability('moodle/site:accessallgroups',$context);
}

/**
 * Load data
 */

// Get criteria for course
$completion = new completion_info($course);

if (!$completion->has_criteria()) {
    print_error('err_nocriteria', 'completion', $CFG->wwwroot.'/course/report.php?id='.$course->id);
}

// Get criteria and put in correct order
$criteria = array();

foreach ($completion->get_criteria(COMPLETION_CRITERIA_TYPE_COURSE) as $criterion) {
    $criteria[] = $criterion;
}

foreach ($completion->get_criteria(COMPLETION_CRITERIA_TYPE_ACTIVITY) as $criterion) {
    $criteria[] = $criterion;
}

foreach ($completion->get_criteria() as $criterion) {
    if (!in_array($criterion->criteriatype, array(
            COMPLETION_CRITERIA_TYPE_COURSE, COMPLETION_CRITERIA_TYPE_ACTIVITY))) {
        $criteria[] = $criterion;
    }
}

// Can logged in user mark users as complete?
// (if the logged in user has a role defined in the role criteria)
$allow_marking = false;
$allow_marking_criteria = null;

if (!$csv) {
    // Get role criteria
    $rcriteria = $completion->get_criteria(COMPLETION_CRITERIA_TYPE_ROLE);

    if (!empty($rcriteria)) {

        foreach ($rcriteria as $rcriterion) {
            $users = get_role_users($rcriterion->role, $context, true);

            // If logged in user has this role, allow marking complete
            if ($users && in_array($USER->id, array_keys($users))) {
                $allow_marking = true;
                $allow_marking_criteria = $rcriterion->id;
                break;
            }
        }
    }
}

// Get user data
$progress = $completion->get_progress_all(
    $firstnamesort, $group,
    $csv ? 0 : COMPLETION_REPORT_PAGE,
    $csv ? 0 : $start);


/**
 * Setup page header
 */
if ($csv) {
    header('Content-Disposition: attachment; filename=progress.'.
        preg_replace('/[^a-z0-9-]/','_',strtolower($course->shortname)).'.csv');
    // Unicode byte-order mark for Excel
    if($excel) {
        header('Content-Type: text/csv; charset=UTF-16LE');
        print chr(0xFF).chr(0xFE);
        $sep="\t".chr(0);
        $line="\n".chr(0);
    } else {
        header('Content-Type: text/csv; charset=UTF-8');
        $sep=",";
        $line="\n";
    }

} else {
    // Navigation and header
    $strcompletion = get_string('completionreport','completion');

    $PAGE->set_title($strcompletion);
    $PAGE->set_heading($course->fullname);
    
    echo $OUTPUT->header();

    $PAGE->requires->yui2_lib(
        array(
            'yahoo',
            'dom',
            'element',
            'event',
        )
    );

    $PAGE->requires->js('/course/report/completion/textrotate.js');

    // Handle groups (if enabled)
    groups_print_course_menu($course, $CFG->wwwroot.'/course/report/progress/?course='.$course->id);
}

// Do we need a paging bar?
if($progress->total > COMPLETION_REPORT_PAGE) {
    $pagingbar='<div class="completion_pagingbar">';

    if($start>0) {
        $newstart=$start-COMPLETION_REPORT_PAGE;
        if($newstart<0) {
            $newstart=0;
        }
        $pagingbar.=link_arrow_left(get_string('previous'),'./?course='.$course->id.
            ($newstart ? '&amp;start='.$newstart : ''),false,'completion_prev');
    }

    $a=new StdClass;
    $a->from=$start+1;
    $a->to=$start+COMPLETION_REPORT_PAGE;
    $a->total=$progress->total;
    $pagingbar.='<p>'.get_string('reportpage','completion',$a).'</p>';

    if($start+COMPLETION_REPORT_PAGE < $progress->total) {
        $pagingbar.=link_arrow_right(get_string('next'),'./?course='.$course->id.
            '&amp;start='.($start+COMPLETION_REPORT_PAGE),false,'completion_next');
    }

    $pagingbar.='</div>';
} else {
    $pagingbar='';
}


/**
 * Draw table header
 */

// Start of table
if(!$csv) {
    print '<br class="clearer"/>'; // ugh

    if(count($progress->users)==0) {
        echo $OUTPUT->box_start('errorbox errorboxcontent boxaligncenter boxwidthnormal');
        print '<p class="nousers">'.get_string('err_nousers','completion').'</p>';
        print '<p><a href="'.$CFG->wwwroot.'/course/report.php?id='.$course->id.'">'.get_string('continue').'</a></p>';
        echo $OUTPUT->box_end();
        echo $OUTPUT->footer($course);
        exit;
    }

    print $pagingbar;
    print '<table id="completion-progress" class="generaltable flexible boxaligncenter completionreport" style="text-align: left" cellpadding="5" border="1">';

    // Print criteria group names
    print PHP_EOL.'<tr style="vertical-align: top">';
    print '<th scope="row" class="rowheader">'.get_string('criteriagroup', 'completion').'</th>';

    $current_group = false;
    $col_count = 0;
    for ($i = 0; $i <= count($criteria); $i++) {

        if (isset($criteria[$i])) {
            $criterion = $criteria[$i];

            if ($current_group && $criterion->criteriatype === $current_group->criteriatype) {
                ++$col_count;
                continue;
            }
        }

        // Print header cell
        if ($col_count) {
            print '<th scope="col" colspan="'.$col_count.'" class="colheader criteriagroup">'.$current_group->get_type_title().'</th>';
        }

        if (isset($criteria[$i])) {
            // Move to next criteria type
            $current_group = $criterion;
            $col_count = 1;
        }
    }

    // Overall course completion status
    print '<th style="text-align: center;">'.get_string('course').'</th>';

    print '</tr>';

    // Print aggregation methods
    print PHP_EOL.'<tr style="vertical-align: top">';
    print '<th scope="row" class="rowheader">'.get_string('aggregationmethod', 'completion').'</th>';

    $current_group = false;
    $col_count = 0;
    for ($i = 0; $i <= count($criteria); $i++) {

        if (isset($criteria[$i])) {
            $criterion = $criteria[$i];

            if ($current_group && $criterion->criteriatype === $current_group->criteriatype) {
                ++$col_count;
                continue;
            }
        }

        // Print header cell
        if ($col_count) {
            $has_agg = array(
                COMPLETION_CRITERIA_TYPE_COURSE,
                COMPLETION_CRITERIA_TYPE_ACTIVITY,
                COMPLETION_CRITERIA_TYPE_ROLE,
            );

            if (in_array($current_group->criteriatype, $has_agg)) {
                // Try load a aggregation method
                $method = $completion->get_aggregation_method($current_group->criteriatype);

                $method = $method == 1 ? 'All' : 'Any';

            } else {
                $method = '-';
            }

            print '<th scope="col" colspan="'.$col_count.'" class="colheader aggheader">'.$method.'</th>';
        }

        if (isset($criteria[$i])) {
            // Move to next criteria type
            $current_group = $criterion;
            $col_count = 1;
        }
    }

    // Overall course aggregation method
    print '<th scope="col" class="colheader aggheader aggcriteriacourse">';

    // Get course aggregation
    $method = $completion->get_aggregation_method();

    print $method == 1 ? 'All' : 'Any';
    print '</th>';

    print '</tr>';


    // Print criteria titles
    if (COMPLETION_REPORT_COL_TITLES) {

        print PHP_EOL.'<tr>';
        print '<th scope="row" class="rowheader">'.get_string('criteria', 'completion').'</th>';

        foreach ($criteria as $criterion) {
            // Get criteria details
            $details = $criterion->get_title_detailed();
            print '<th scope="col" class="colheader criterianame">';
            print '<span class="completion-criterianame">'.$details.'</span>';
            print '</th>';
        }

        // Overall course completion status
        print '<th scope="col" class="colheader criterianame">';

        print '<span class="completion-criterianame">'.get_string('coursecomplete', 'completion').'</span>';

        print '</th></tr>';
    }

    // Print user heading and icons
    print '<tr>';

    // User heading / sort option
    print '<th scope="col" class="completion-sortchoice" style="clear: both;">';
    if($firstnamesort) {
        print
            get_string('firstname').' / <a href="./?course='.$course->id.'">'.
            get_string('lastname').'</a>';
    } else {
        print '<a href="./?course='.$course->id.'&amp;sort=firstname">'.
            get_string('firstname').'</a> / '.
            get_string('lastname');
    }
    print '</th>';


    // Print user id number column
    if($idnumbers) {
        print '<th>'.get_string('idnumber').'</th>';
    }

    ///
    /// Print criteria icons
    ///
    foreach ($criteria as $criterion) {

        // Generate icon details
        $icon = '';
        $iconlink = '';
        $icontitle = ''; // Required if $iconlink set
        $iconalt = ''; // Required
        switch ($criterion->criteriatype) {

            case COMPLETION_CRITERIA_TYPE_ACTIVITY:
                // Load activity
                $activity = $criterion->get_mod_instance();

                // Display icon
                $icon = $OUTPUT->pix_url('icon', $criterion->module).'/icon.gif';
                $iconlink = $CFG->wwwroot.'/mod/'.$criterion->module.'/view.php?id='.$activity->id;
                $icontitle = $activity->name;
                $iconalt = get_string('modulename', $criterion->module);
                break;

            case COMPLETION_CRITERIA_TYPE_COURSE:
                // Load course
                $crs = $DB->get_record('course', array('id' => $criterion->courseinstance));

                // Display icon
                $iconlink = $CFG->wwwroot.'/course/view.php?id='.$criterion->courseinstance;
                $icontitle = $crs->fullname;
                $iconalt = $crs->shortname;
                break;

            case COMPLETION_CRITERIA_TYPE_ROLE:
                // Load role
                $role = $DB->get_record('role', array('id' => $criterion->role));

                // Display icon
                $iconalt = $role->name;
                break;
        }

        // Print icon and cell
        print '<th class="criteriaicon">';

        // Create icon if not supplied
        if (!$icon) {
            $icon = $OUTPUT->pix_url('i/'.$COMPLETION_CRITERIA_TYPES[$criterion->criteriatype].'.gif');
        }

        print ($iconlink ? '<a href="'.$iconlink.'" title="'.$icontitle.'">' : '');
        print '<img src="'.$icon.'" class="icon" alt="'.$iconalt.'" '.(!$iconlink ? 'title="'.$iconalt.'"' : '').' />';
        print ($iconlink ? '</a>' : '');

        print '</th>';
    }

    // Overall course completion status
    print '<th class="criteriaicon">';
    print '<img src="'.$OUTPUT->pix_url('i/course.gif').'" class="icon" alt="Course" title="Course Complete" />';
    print '</th>';

    print '</tr>';


} else {
    // TODO
    if($idnumbers) {
        print $sep;
    }
}


///
/// Display a row for each user
///
foreach($progress->users as $user) {

    // User name
    if($csv) {
        print csv_quote(fullname($user));
        if($idnumbers) {
            print $sep.csv_quote($user->idnumber);
        }
    } else {
        print PHP_EOL.'<tr id="user-'.$user->id.'">';

        print '<th scope="row"><a href="'.$CFG->wwwroot.'/user/view.php?id='.
            $user->id.'&amp;course='.$course->id.'">'.fullname($user).'</a></th>';
        if($idnumbers) {
            print '<td>'.htmlspecialchars($user->idnumber).'</td>';
        }
    }

    // Progress for each course completion criteria
    foreach ($criteria as $criterion) {

        // Handle activity completion differently
        if ($criterion->criteriatype == COMPLETION_CRITERIA_TYPE_ACTIVITY) {

            // Load activity
            $mod = $criterion->get_mod_instance();
            $activity = $DB->get_record('course_modules', array('id' => $criterion->moduleinstance));
            $activity->name = $mod->name;


            // Get progress information and state
            if(array_key_exists($activity->id,$user->progress)) {
                $thisprogress=$user->progress[$activity->id];
                $state=$thisprogress->completionstate;
                $date=userdate($thisprogress->timemodified);
            } else {
                $state=COMPLETION_INCOMPLETE;
                $date='';
            }

            $criteria_completion = $completion->get_user_completion($user->id, $criterion);

            // Work out how it corresponds to an icon
            switch($state) {
                case COMPLETION_INCOMPLETE : $completiontype='n'; break;
                case COMPLETION_COMPLETE : $completiontype='y'; break;
                case COMPLETION_COMPLETE_PASS : $completiontype='pass'; break;
                case COMPLETION_COMPLETE_FAIL : $completiontype='fail'; break;
            }

            $completionicon='completion-'.
                ($activity->completion==COMPLETION_TRACKING_AUTOMATIC ? 'auto' : 'manual').
                '-'.$completiontype;

            $describe=get_string('completion-alt-auto-'.$completiontype,'completion');
            $a=new StdClass;
            $a->state=$describe;
            $a->date=$date;
            $a->user=fullname($user);
            $a->activity=strip_tags($activity->name);
            $fulldescribe=get_string('progress-title','completion',$a);

            if($csv) {
                print $sep.csv_quote($describe).$sep.csv_quote($date);
            } else {
                print '<td class="completion-progresscell">';

                print '<img src="'.$OUTPUT->pix_url('i/'.$completionicon).
                      '" alt="'.$describe.'" class="icon" title="'.$fulldescribe.'" />';

                print '</td>';
            }

            continue;
        }

        // Handle all other criteria
        $criteria_completion = $completion->get_user_completion($user->id, $criterion);
        $is_complete = $criteria_completion->is_complete();

        $completiontype = $is_complete ? 'y' : 'n';
        $completionicon = 'completion-auto-'.$completiontype;

        $describe = get_string('completion-alt-auto-'.$completiontype, 'completion');

        $a = new Object();
        $a->state    = $describe;
        $a->date     = $is_complete ? userdate($criteria_completion->timecompleted) : '';
        $a->user     = fullname($user);
        $a->activity = strip_tags($criterion->get_title());
        $fulldescribe = get_string('progress-title', 'completion', $a);

        if ($csv) {
            print $sep.csv_quote($describe);
        } else {

            if ($allow_marking_criteria === $criterion->id) {
                $describe = get_string('completion-alt-auto-'.$completiontype,'completion');

                print '<td class="completion-progresscell">'.
                    '<a href="'.$CFG->wwwroot.'/course/togglecompletion.php?user='.$user->id.'&course='.$course->id.'&rolec='.$allow_marking_criteria.'">'.
                    '<img src="'.$OUTPUT->pix_url('i/completion-manual-'.($is_complete ? 'y' : 'n')).
                    '" alt="'.$describe.'" class="icon" title="Mark as complete" /></a></td>';
            } else {
                print '<td class="completion-progresscell">'.
                    '<img src="'.$OUTPUT->pix_url('i/'.$completionicon).
                    '" alt="'.$describe.'" class="icon" title="'.$fulldescribe.'" /></td>';
            }
        }
    }

    // Handle overall course completion

    // Load course completion
    $params = array(
        'userid'    => $user->id,
        'course'    => $course->id
    );

    $ccompletion = new completion_completion($params);
    $completiontype =  $ccompletion->is_complete() ? 'y' : 'n';

    $describe = get_string('completion-alt-auto-'.$completiontype, 'completion');

    $a = new StdClass;
    $a->state    = $describe;
    $a->date     = '';
    $a->user     = fullname($user);
    $a->activity = strip_tags(get_string('coursecomplete', 'completion'));
    $fulldescribe = get_string('progress-title', 'completion', $a);

    if ($csv) {
        print $sep.csv_quote($describe);
    } else {

        print '<td class="completion-progresscell">';

        // Display course completion status icon
        print '<img src="'.$OUTPUT->pix_url('i/completion-auto-'.$completiontype).
               '" alt="'.$describe.'" class="icon" title="'.$fulldescribe.'" />';

        print '</td>';
    }

    if($csv) {
        print $line;
    } else {
        print '</tr>';
    }
}

if($csv) {
    exit;
}
print '</table>';
print $pagingbar;

print '<ul class="progress-actions"><li><a href="index.php?course='.$course->id.
    '&amp;format=csv">'.get_string('csvdownload','completion').'</a></li>
    <li><a href="index.php?course='.$course->id.'&amp;format=excelcsv">'.
    get_string('excelcsvdownload','completion').'</a></li></ul>';

echo $OUTPUT->footer($course);