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Edit File: lib.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/>.

/**
 * @package   mod_survey
 * @copyright 1999 onwards Martin Dougiamas  {@link http://moodle.com}
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

/**
 * Graph size
 * @global int $SURVEY_GHEIGHT
 */
global $SURVEY_GHEIGHT;
$SURVEY_GHEIGHT = 500;
/**
 * Graph size
 * @global int $SURVEY_GWIDTH
 */
global $SURVEY_GWIDTH;
$SURVEY_GWIDTH  = 900;
/**
 * Question Type
 * @global array $SURVEY_QTYPE
 */
global $SURVEY_QTYPE;
$SURVEY_QTYPE = array (
        "-3" => "Virtual Actual and Preferred",
        "-2" => "Virtual Preferred",
        "-1" => "Virtual Actual",
         "0" => "Text",
         "1" => "Actual",
         "2" => "Preferred",
         "3" => "Actual and Preferred",
        );

define("SURVEY_COLLES_ACTUAL",           "1");
define("SURVEY_COLLES_PREFERRED",        "2");
define("SURVEY_COLLES_PREFERRED_ACTUAL", "3");
define("SURVEY_ATTLS",                   "4");
define("SURVEY_CIQ",                     "5");
// Question length to wrap.
define("SURVEY_QLENGTH_WRAP",            "80");

require_once(__DIR__ . '/deprecatedlib.php');

// STANDARD FUNCTIONS ////////////////////////////////////////////////////////
/**
 * Given an object containing all the necessary data,
 * (defined by the form in mod_form.php) this function
 * will create a new instance and return the id number
 * of the new instance.
 *
 * @global object
 * @param object $survey
 * @return int|bool
 */
function survey_add_instance($survey) {
    global $DB;

if (!$template = $DB->get_record("survey", array("id"=>$survey->template))) {
        return 0;
    }

$survey->questions    = $template->questions;
    $survey->timecreated  = time();
    $survey->timemodified = $survey->timecreated;

$id = $DB->insert_record("survey", $survey);

$completiontimeexpected = !empty($survey->completionexpected) ? $survey->completionexpected : null;
    \core_completion\api::update_completion_date_event($survey->coursemodule, 'survey', $id, $completiontimeexpected);

return $id;

}

/**
 * Given an object containing all the necessary data,
 * (defined by the form in mod_form.php) this function
 * will update an existing instance with new data.
 *
 * @global object
 * @param object $survey
 * @return bool
 */
function survey_update_instance($survey) {
    global $DB;

if (!$template = $DB->get_record("survey", array("id"=>$survey->template))) {
        return 0;
    }

$survey->id           = $survey->instance;
    $survey->questions    = $template->questions;
    $survey->timemodified = time();

$completiontimeexpected = !empty($survey->completionexpected) ? $survey->completionexpected : null;
    \core_completion\api::update_completion_date_event($survey->coursemodule, 'survey', $survey->id, $completiontimeexpected);

return $DB->update_record("survey", $survey);
}

/**
 * Given an ID of an instance of this module,
 * this function will permanently delete the instance
 * and any data that depends on it.
 *
 * @global object
 * @param int $id
 * @return bool
 */
function survey_delete_instance($id) {
    global $DB;

if (! $survey = $DB->get_record("survey", array("id"=>$id))) {
        return false;
    }

$cm = get_coursemodule_from_instance('survey', $id);
    \core_completion\api::update_completion_date_event($cm->id, 'survey', $id, null);

$result = true;

if (! $DB->delete_records("survey_analysis", array("survey"=>$survey->id))) {
        $result = false;
    }

if (! $DB->delete_records("survey_answers", array("survey"=>$survey->id))) {
        $result = false;
    }

if (! $DB->delete_records("survey", array("id"=>$survey->id))) {
        $result = false;
    }

return $result;
}

/**
 * @global object
 * @param object $course
 * @param object $user
 * @param object $mod
 * @param object $survey
 * @return $result
 */
function survey_user_outline($course, $user, $mod, $survey) {
    global $DB;

if ($answers = $DB->get_records("survey_answers", array('survey'=>$survey->id, 'userid'=>$user->id))) {
        $lastanswer = array_pop($answers);

$result = new stdClass();
        $result->info = get_string("done", "survey");
        $result->time = $lastanswer->time;
        return $result;
    }
    return NULL;
}

/**
 * @global stdObject
 * @global object
 * @uses SURVEY_CIQ
 * @param object $course
 * @param object $user
 * @param object $mod
 * @param object $survey
 */
function survey_user_complete($course, $user, $mod, $survey) {
    global $CFG, $DB, $OUTPUT;

if (survey_already_done($survey->id, $user->id)) {
        if ($survey->template == SURVEY_CIQ) { // print out answers for critical incidents
            $table = new html_table();
            $table->align = array("left", "left");

$questions = $DB->get_records_list("survey_questions", "id", explode(',', $survey->questions));
            $questionorder = explode(",", $survey->questions);

foreach ($questionorder as $key=>$val) {
                $question = $questions[$val];
                $questiontext = get_string($question->shorttext, "survey");

if ($answer = survey_get_user_answer($survey->id, $question->id, $user->id)) {
                    $answertext = "$answer->answer1";
                } else {
                    $answertext = "No answer";
                }
                $table->data[] = array("<b>$questiontext</b>", s($answertext));
            }
            echo html_writer::table($table);

} else {

survey_print_graph("id=$mod->id&sid=$user->id&type=student.png");
        }

} else {
        print_string("notdone", "survey");
    }
}

/**
 * @global stdClass
 * @global object
 * @param object $course
 * @param mixed $viewfullnames
 * @param int $timestamp
 * @return bool
 */
function survey_print_recent_activity($course, $viewfullnames, $timestart) {
    global $CFG, $DB, $OUTPUT;

$modinfo = get_fast_modinfo($course);
    $ids = array();
    foreach ($modinfo->cms as $cm) {
        if ($cm->modname != 'survey') {
            continue;
        }
        if (!$cm->uservisible) {
            continue;
        }
        $ids[$cm->instance] = $cm->instance;
    }

if (!$ids) {
        return false;
    }

$slist = implode(',', $ids); // there should not be hundreds of glossaries in one course, right?

$userfieldsapi = \core_user\fields::for_userpic();
    $allusernames = $userfieldsapi->get_sql('u', false, '', '', false)->selects;
    $rs = $DB->get_recordset_sql("SELECT sa.userid, sa.survey, MAX(sa.time) AS time,
                                         $allusernames
                                    FROM {survey_answers} sa
                                    JOIN {user} u ON u.id = sa.userid
                                   WHERE sa.survey IN ($slist) AND sa.time > ?
                                GROUP BY sa.userid, sa.survey, $allusernames
                                ORDER BY time ASC", array($timestart));
    if (!$rs->valid()) {
        $rs->close(); // Not going to iterate (but exit), close rs
        return false;
    }

$surveys = array();

foreach ($rs as $survey) {
        $cm = $modinfo->instances['survey'][$survey->survey];
        $survey->name = $cm->name;
        $survey->cmid = $cm->id;
        $surveys[] = $survey;
    }
    $rs->close();

if (!$surveys) {
        return false;
    }

echo $OUTPUT->heading(get_string('newsurveyresponses', 'survey') . ':', 6);
    foreach ($surveys as $survey) {
        $url = $CFG->wwwroot.'/mod/survey/view.php?id='.$survey->cmid;
        print_recent_activity_note($survey->time, $survey, $survey->name, $url, false, $viewfullnames);
    }

return true;
}

// SQL FUNCTIONS ////////////////////////////////////////////////////////

/**
 * @global object
 * @param sting $log
 * @return array
 */
function survey_log_info($log) {
    global $DB;
    return $DB->get_record_sql("SELECT s.name, u.firstname, u.lastname, u.picture
                                  FROM {survey} s, {user} u
                                 WHERE s.id = ?  AND u.id = ?", array($log->info, $log->userid));
}

/**
 * @global object
 * @param int $surveyid
 * @param int $groupid
 * @param int $groupingid
 * @return array
 */
function survey_get_responses($surveyid, $groupid, $groupingid) {
    global $DB;

$params = array('surveyid'=>$surveyid, 'groupid'=>$groupid, 'groupingid'=>$groupingid);

if ($groupid) {
        $groupsjoin = "JOIN {groups_members} gm ON u.id = gm.userid AND gm.groupid = :groupid ";

} else if ($groupingid) {
        $groupsjoin = "JOIN {groups_members} gm ON u.id = gm.userid
                       JOIN {groupings_groups} gg ON gm.groupid = gg.groupid AND gg.groupingid = :groupingid ";
    } else {
        $groupsjoin = "";
    }

$userfieldsapi = \core_user\fields::for_userpic();
    $userfields = $userfieldsapi->get_sql('u', false, '', '', false)->selects;
    return $DB->get_records_sql("SELECT $userfields, MAX(a.time) as time
                                   FROM {survey_answers} a
                                   JOIN {user} u ON a.userid = u.id
                            $groupsjoin
                                  WHERE a.survey = :surveyid
                               GROUP BY $userfields
                               ORDER BY time ASC", $params);
}

/**
 * @global object
 * @param int $survey
 * @param int $user
 * @return array
 */
function survey_get_analysis($survey, $user) {
    global $DB;

return $DB->get_record_sql("SELECT notes
                                  FROM {survey_analysis}
                                 WHERE survey=? AND userid=?", array($survey, $user));
}

/**
 * @global object
 * @param int $survey
 * @param int $user
 * @param string $notes
 */
function survey_update_analysis($survey, $user, $notes) {
    global $DB;

return $DB->execute("UPDATE {survey_analysis}
                            SET notes=?
                          WHERE survey=?
                            AND userid=?", array($notes, $survey, $user));
}

/**
 * @global object
 * @param int $surveyid
 * @param int $groupid
 * @param string $sort
 * @return array
 */
function survey_get_user_answers($surveyid, $questionid, $groupid, $sort="sa.answer1,sa.answer2 ASC") {
    global $DB;

$params = array('surveyid'=>$surveyid, 'questionid'=>$questionid);

if ($groupid) {
        $groupfrom = ', {groups_members} gm';
        $groupsql  = 'AND gm.groupid = :groupid AND u.id = gm.userid';
        $params['groupid'] = $groupid;
    } else {
        $groupfrom = '';
        $groupsql  = '';
    }

$userfieldsapi = \core_user\fields::for_userpic();
    $userfields = $userfieldsapi->get_sql('u', false, '', '', false)->selects;
    return $DB->get_records_sql("SELECT sa.*, $userfields
                                   FROM {survey_answers} sa,  {user} u $groupfrom
                                  WHERE sa.survey = :surveyid
                                        AND sa.question = :questionid
                                        AND u.id = sa.userid $groupsql
                               ORDER BY $sort", $params);
}

/**
 * @global object
 * @param int $surveyid
 * @param int $questionid
 * @param int $userid
 * @return stdClass|false
 */
function survey_get_user_answer($surveyid, $questionid, $userid) {
    global $DB;

return $DB->get_record_sql("SELECT sa.*
                                  FROM {survey_answers} sa
                                 WHERE sa.survey = ?
                                       AND sa.question = ?
                                       AND sa.userid = ?", array($surveyid, $questionid, $userid));
}

// MODULE FUNCTIONS ////////////////////////////////////////////////////////
/**
 * @global object
 * @param int $survey
 * @param int $user
 * @param string $notes
 * @return bool|int
 */
function survey_add_analysis($survey, $user, $notes) {
    global $DB;

$record = new stdClass();
    $record->survey = $survey;
    $record->userid = $user;
    $record->notes = $notes;

return $DB->insert_record("survey_analysis", $record, false);
}
/**
 * @global object
 * @param int $survey
 * @param int $user
 * @return bool
 */
function survey_already_done($survey, $user) {
    global $DB;

return $DB->record_exists("survey_answers", array("survey"=>$survey, "userid"=>$user));
}
/**
 * @param int $surveyid
 * @param int $groupid
 * @param int $groupingid
 * @return int
 */
function survey_count_responses($surveyid, $groupid, $groupingid) {
    if ($responses = survey_get_responses($surveyid, $groupid, $groupingid)) {
        return count($responses);
    } else {
        return 0;
    }
}

/**
 * @param int $cmid
 * @param array $results
 * @param int $courseid
 */
function survey_print_all_responses($cmid, $results, $courseid) {
    global $OUTPUT;
    $table = new html_table();
    $table->head  = array ("", get_string("name"),  get_string("time"));
    $table->align = array ("", "left", "left");
    $table->size = array (35, "", "" );

foreach ($results as $a) {
        $table->data[] = array($OUTPUT->user_picture($a, array('courseid'=>$courseid)),
               html_writer::link("report.php?action=student&student=$a->id&id=$cmid", fullname($a)),
               userdate($a->time));
    }

echo html_writer::table($table);
}

/**
 * @global object
 * @param int $templateid
 * @return string
 */
function survey_get_template_name($templateid) {
    global $DB;

if ($templateid) {
        if ($ss = $DB->get_record("surveys", array("id"=>$templateid))) {
            return $ss->name;
        }
    } else {
        return "";
    }
}

/**
 * @param string $name
 * @param array $numwords
 * @return string
 */
function survey_shorten_name ($name, $numwords) {
    $words = explode(" ", $name);
    $output = '';
    for ($i=0; $i < $numwords; $i++) {
        $output .= $words[$i]." ";
    }
    return $output;
}

/**
 * @todo Check this function
 *
 * @global object
 * @global object
 * @global int
 * @global void This is never defined
 * @global object This is defined twice?
 * @param object $question
 */
function survey_print_multi($question) {
    global $USER, $DB, $qnum, $DB, $OUTPUT; //TODO: this is sloppy globals abuse

$stripreferthat = get_string("ipreferthat", "survey");
    $strifoundthat = get_string("ifoundthat", "survey");
    $strdefault    = get_string('notyetanswered', 'survey');
    $strresponses  = get_string('responses', 'survey');

echo $OUTPUT->heading($question->text, 3);
    echo "\n<table width=\"90%\" cellpadding=\"4\" cellspacing=\"1\" border=\"0\" class=\"surveytable\">";

$options = explode( ",", $question->options);
    $numoptions = count($options);

// COLLES Actual (which is having questions of type 1) and COLLES Preferred (type 2)
    // expect just one answer per question. COLLES Actual and Preferred (type 3) expects
    // two answers per question. ATTLS (having a single question of type 1) expects one
    // answer per question. CIQ is not using multiquestions (i.e. a question with subquestions).
    // Note that the type of subquestions does not really matter, it's the type of the
    // question itself that determines everything.
    $oneanswer = ($question->type == 1 || $question->type == 2) ? true : false;

// COLLES Preferred (having questions of type 2) will use the radio elements with the name
    // like qP1, qP2 etc. COLLES Actual and ATTLS have radios like q1, q2 etc.
    if ($question->type == 2) {
        $P = "P";
    } else {
        $P = "";
    }

echo "<colgroup colspan=\"7\"></colgroup>";
    echo "<tr class=\"smalltext\"><th scope=\"row\">$strresponses</th>";
    echo "<th scope=\"col\" class=\"hresponse\">". get_string('notyetanswered', 'survey'). "</th>";
    foreach ($options as $key => $val) {
        echo "<th scope=\"col\" class=\"hresponse\">$val</th>\n";
    }
    echo "</tr>\n";

echo "<tr><th scope=\"colgroup\" colspan=\"7\">$question->intro</th></tr>\n";

$subquestions = survey_get_subquestions($question);

foreach ($subquestions as $q) {
        $qnum++;
        if ($oneanswer) {
            $rowclass = survey_question_rowclass($qnum);
        } else {
            $rowclass = survey_question_rowclass(round($qnum / 2));
        }
        if ($q->text) {
            $q->text = get_string($q->text, "survey");
        }

echo "<tr class=\"$rowclass rblock\">";
        if ($oneanswer) {
            echo "<th scope=\"row\" class=\"optioncell\">";
            echo "<b class=\"qnumtopcell\">$qnum</b>   ";
            echo $q->text ."</th>\n";

$default = get_accesshide($strdefault);
            echo "<td class=\"whitecell\"><label for=\"q$P$q->id\"><input type=\"radio\" name=\"q$P$q->id\" id=\"q$P" . $q->id . "_D\" value=\"0\" checked=\"checked\" data-survey-default=\"true\" />$default</label></td>";

for ($i=1;$i<=$numoptions;$i++) {
                $hiddentext = get_accesshide($options[$i-1]);
                $id = "q$P" . $q->id . "_$i";
                echo "<td><label for=\"$id\"><input type=\"radio\" name=\"q$P$q->id\" id=\"$id\" value=\"$i\" />$hiddentext</label></td>";
            }
        } else {
            echo "<th scope=\"row\" class=\"optioncell\">";
            echo "<b class=\"qnumtopcell\">$qnum</b>   ";
            $qnum++;
            echo "<span class=\"preferthat\">$stripreferthat</span>   ";
            echo "<span class=\"option\">$q->text</span></th>\n";

$default = get_accesshide($strdefault);
            echo '<td class="whitecell"><label for="qP'.$q->id.'"><input type="radio" name="qP'.$q->id.'" id="qP'.$q->id.'" value="0" checked="checked" data-survey-default="true" />'.$default.'</label></td>';

for ($i=1;$i<=$numoptions;$i++) {
                $hiddentext = get_accesshide($options[$i-1]);
                $id = "qP" . $q->id . "_$i";
                echo "<td><label for=\"$id\"><input type=\"radio\" name=\"qP$q->id\" id=\"$id\" value=\"$i\" />$hiddentext</label></td>";
            }
            echo "</tr>";

echo "<tr class=\"$rowclass rblock\">";
            echo "<th scope=\"row\" class=\"optioncell\">";
            echo "<b class=\"qnumtopcell\">$qnum</b>   ";
            echo "<span class=\"foundthat\">$strifoundthat</span>   ";
            echo "<span class=\"option\">$q->text</span></th>\n";

$default = get_accesshide($strdefault);
            echo '<td class="whitecell"><label for="q'. $q->id .'"><input type="radio" name="q'.$q->id. '" id="q'. $q->id .'" value="0" checked="checked" data-survey-default="true" />'.$default.'</label></td>';

for ($i=1;$i<=$numoptions;$i++) {
                $hiddentext = get_accesshide($options[$i-1]);
                $id = "q" . $q->id . "_$i";
                echo "<td><label for=\"$id\"><input type=\"radio\" name=\"q$q->id\" id=\"$id\" value=\"$i\" />$hiddentext</label></td>";
            }
        }
        echo "</tr>\n";
    }
    echo "</table>";
}

/**
 * @global object
 * @global int
 * @param object $question
 */
function survey_print_single($question) {
    global $DB, $qnum, $OUTPUT;

$rowclass = survey_question_rowclass(0);

$qnum++;

echo "<br />\n";
    echo "<table width=\"90%\" cellpadding=\"4\" cellspacing=\"0\">\n";
    echo "<tr class=\"$rowclass\">";
    echo "<th scope=\"row\" class=\"optioncell\"><label for=\"q$question->id\"><b class=\"qnumtopcell\">$qnum</b>   ";
    echo "<span class=\"questioncell\">$question->text</span></label></th>\n";
    echo "<td class=\"questioncell smalltext\">\n";

if ($question->type == 0) {           // Plain text field
        echo "<textarea rows=\"3\" cols=\"30\" class=\"form-control\" name=\"q$question->id\" id=\"q$question->id\">$question->options

"; } else if ($question->type > 0) { // Choose one of a number $strchoose = get_string("choose"); echo ""; } else if ($question->type < 0) { // Choose several of a number $options = explode( ",", $question->options); echo $OUTPUT->notification("This question type not supported yet"); } echo ""; } /** * * @param int $qnum * @return string */ function survey_question_rowclass($qnum) { if ($qnum) { return $qnum % 2 ? 'r0' : 'r1'; } else { return 'r0'; } } /** * @global object * @global int * @global int * @param string $url */ function survey_print_graph($url) { global $CFG, $SURVEY_GHEIGHT, $SURVEY_GWIDTH; echo "

wwwroot/mod/survey/graph.php?$url\" alt=\"".get_string("surveygraph", "survey")."\" />"; } /** * List the actions that correspond to a view of this module. * This is used by the participation report. * * Note: This is not used by new logging system. Event with * crud = 'r' and edulevel = LEVEL_PARTICIPATING will * be considered as view action. * * @return array */ function survey_get_view_actions() { return array('download','view all','view form','view graph','view report'); } /** * List the actions that correspond to a post of this module. * This is used by the participation report. * * Note: This is not used by new logging system. Event with * crud = ('c' || 'u' || 'd') and edulevel = LEVEL_PARTICIPATING * will be considered as post action. * * @return array */ function survey_get_post_actions() { return array('submit'); } /** * Implementation of the function for printing the form elements that control * whether the course reset functionality affects the survey. * * @param MoodleQuickForm $mform form passed by reference */ function survey_reset_course_form_definition(&$mform) { $mform->addElement('header', 'surveyheader', get_string('modulenameplural', 'survey')); $mform->addElement('checkbox', 'reset_survey_answers', get_string('deleteallanswers','survey')); $mform->addElement('checkbox', 'reset_survey_analysis', get_string('deleteanalysis','survey')); $mform->disabledIf('reset_survey_analysis', 'reset_survey_answers', 'checked'); } /** * Course reset form defaults. * @return array */ function survey_reset_course_form_defaults($course) { return array('reset_survey_answers'=>1, 'reset_survey_analysis'=>1); } /** * Actual implementation of the reset course functionality, delete all the * survey responses for course $data->courseid. * * @global object * @param $data the data submitted from the reset course. * @return array status array */ function survey_reset_userdata($data) { global $DB; $componentstr = get_string('modulenameplural', 'survey'); $status = array(); $surveyssql = "SELECT ch.id FROM {survey} ch WHERE ch.course=?"; $params = array($data->courseid); if (!empty($data->reset_survey_answers)) { $DB->delete_records_select('survey_answers', "survey IN ($surveyssql)", $params); $DB->delete_records_select('survey_analysis', "survey IN ($surveyssql)", $params); $status[] = array('component'=>$componentstr, 'item'=>get_string('deleteallanswers', 'survey'), 'error'=>false); } if (!empty($data->reset_survey_analysis)) { $DB->delete_records_select('survey_analysis', "survey IN ($surveyssql)", $params); $status[] = array('component'=>$componentstr, 'item'=>get_string('deleteallanswers', 'survey'), 'error'=>false); } // No date shifting. // Any changes to the list of dates that needs to be rolled should be same during course restore and course reset. // See MDL-9367. return $status; } /** * @uses FEATURE_GROUPS * @uses FEATURE_GROUPINGS * @uses FEATURE_MOD_INTRO * @uses FEATURE_COMPLETION_TRACKS_VIEWS * @uses FEATURE_GRADE_HAS_GRADE * @uses FEATURE_GRADE_OUTCOMES * @param string $feature FEATURE_xx constant for requested feature * @return mixed True if module supports feature, false if not, null if doesn't know or string for the module purpose. */ function survey_supports($feature) { switch($feature) { case FEATURE_GROUPS: return true; case FEATURE_GROUPINGS: return true; case FEATURE_MOD_INTRO: return true; case FEATURE_COMPLETION_TRACKS_VIEWS: return true; case FEATURE_COMPLETION_HAS_RULES: return true; case FEATURE_GRADE_HAS_GRADE: return false; case FEATURE_GRADE_OUTCOMES: return false; case FEATURE_BACKUP_MOODLE2: return true; case FEATURE_SHOW_DESCRIPTION: return true; case FEATURE_MOD_PURPOSE: return MOD_PURPOSE_COMMUNICATION; default: return null; } } /** * This function extends the settings navigation block for the site. * * It is safe to rely on PAGE here as we will only ever be within the module * context when this is called * * @param settings_navigation $settings * @param navigation_node $surveynode */ function survey_extend_settings_navigation(settings_navigation $settings, navigation_node $surveynode) { global $DB; $cm = get_coursemodule_from_id('survey', $settings->get_page()->cm->id); $context = context_module::instance($cm->id); // Check to see if groups are being used in this survey, confirm user can access. $groupmode = groups_get_activity_groupmode($cm); $currentgroup = groups_get_activity_group($cm, true); if (has_capability('mod/survey:readresponses', $context) && !($currentgroup === 0 && $groupmode == SEPARATEGROUPS && !has_capability('moodle/site:accessallgroups', $context))) { $survey = $DB->get_record("survey", ["id" => $cm->instance]); $url = new moodle_url('/mod/survey/report.php', ['id' => $cm->id]); if ($survey && ($survey->template != SURVEY_CIQ)) { $url->param('action', 'summary'); } else { $url->param('action', 'questions'); } $surveynode->add(get_string("responsereports", "survey"), $url); } } /** * Return a list of page types * @param string $pagetype current page type * @param stdClass $parentcontext Block's parent context * @param stdClass $currentcontext Current context of block */ function survey_page_type_list($pagetype, $parentcontext, $currentcontext) { $module_pagetype = array('mod-survey-*'=>get_string('page-mod-survey-x', 'survey')); return $module_pagetype; } /** * Mark the activity completed (if required) and trigger the course_module_viewed event. * * @param stdClass $survey survey object * @param stdClass $course course object * @param stdClass $cm course module object * @param stdClass $context context object * @param string $viewed which page viewed * @since Moodle 3.0 */ function survey_view($survey, $course, $cm, $context, $viewed) { // Trigger course_module_viewed event. $params = array( 'context' => $context, 'objectid' => $survey->id, 'courseid' => $course->id, 'other' => array('viewed' => $viewed) ); $event = \mod_survey\event\course_module_viewed::create($params); $event->add_record_snapshot('course_modules', $cm); $event->add_record_snapshot('course', $course); $event->add_record_snapshot('survey', $survey); $event->trigger(); // Completion. $completion = new completion_info($course); $completion->set_module_viewed($cm); } /** * Helper function for ordering a set of questions by the given ids. * * @param array $questions array of questions objects * @param array $questionorder array of questions ids indicating the correct order * @return array list of questions ordered * @since Moodle 3.0 */ function survey_order_questions($questions, $questionorder) { $finalquestions = array(); foreach ($questionorder as $qid) { $finalquestions[] = $questions[$qid]; } return $finalquestions; } /** * Translate the question texts and options. * * @param stdClass $question question object * @return stdClass question object with all the text fields translated * @since Moodle 3.0 */ function survey_translate_question($question) { if ($question->text) { $question->text = get_string($question->text, "survey"); } if ($question->shorttext) { $question->shorttext = get_string($question->shorttext, "survey"); } if ($question->intro) { $question->intro = get_string($question->intro, "survey"); } if ($question->options) { $question->options = get_string($question->options, "survey"); } return $question; } /** * Returns the questions for a survey (ordered). * * @param stdClass $survey survey object * @return array list of questions ordered * @since Moodle 3.0 * @throws moodle_exception */ function survey_get_questions($survey) { global $DB; $questionids = explode(',', $survey->questions); if (! $questions = $DB->get_records_list("survey_questions", "id", $questionids)) { throw new moodle_exception('cannotfindquestion', 'survey'); } return survey_order_questions($questions, $questionids); } /** * Returns subquestions for a given question (ordered). * * @param stdClass $question questin object * @return array list of subquestions ordered * @since Moodle 3.0 */ function survey_get_subquestions($question) { global $DB; $questionids = explode(',', $question->multi); $questions = $DB->get_records_list("survey_questions", "id", $questionids); return survey_order_questions($questions, $questionids); } /** * Save the answer for the given survey * * @param stdClass $survey a survey object * @param array $answersrawdata the answers to be saved * @param stdClass $course a course object (required for trigger the submitted event) * @param stdClass $context a context object (required for trigger the submitted event) * @since Moodle 3.0 */ function survey_save_answers($survey, $answersrawdata, $course, $context) { global $DB, $USER; $answers = array(); // Sort through the data and arrange it. // This is necessary because some of the questions may have two answers, eg Question 1 -> 1 and P1. foreach ($answersrawdata as $key => $val) { if ($key != "userid" && $key != "id") { if (substr($key, 0, 1) == "q") { $key = clean_param(substr($key, 1), PARAM_ALPHANUM); // Keep everything but the 'q', number or P number. } if (substr($key, 0, 1) == "P") { $realkey = (int) substr($key, 1); $answers[$realkey][1] = $val; } else { $answers[$key][0] = $val; } } } // Now store the data. $timenow = time(); $answerstoinsert = array(); foreach ($answers as $key => $val) { if ($key != 'sesskey') { $newdata = new stdClass(); $newdata->time = $timenow; $newdata->userid = $USER->id; $newdata->survey = $survey->id; $newdata->question = $key; if (!empty($val[0])) { $newdata->answer1 = $val[0]; } else { $newdata->answer1 = ""; } if (!empty($val[1])) { $newdata->answer2 = $val[1]; } else { $newdata->answer2 = ""; } $answerstoinsert[] = $newdata; } } if (!empty($answerstoinsert)) { $DB->insert_records("survey_answers", $answerstoinsert); } // Update completion state. $cm = get_coursemodule_from_instance('survey', $survey->id, $course->id); $completion = new completion_info($course); if (isloggedin() && !isguestuser() && $completion->is_enabled($cm) && $survey->completionsubmit) { $completion->update_state($cm, COMPLETION_COMPLETE); } $params = array( 'context' => $context, 'courseid' => $course->id, 'other' => array('surveyid' => $survey->id) ); $event = \mod_survey\event\response_submitted::create($params); $event->trigger(); } /** * Check if the module has any update that affects the current user since a given time. * * @param cm_info $cm course module data * @param int $from the time to check updates from * @param array $filter if we need to check only specific updates * @return stdClass an object with the different type of areas indicating if they were updated or not * @since Moodle 3.2 */ function survey_check_updates_since(cm_info $cm, $from, $filter = array()) { global $DB, $USER; $updates = new stdClass(); if (!has_capability('mod/survey:participate', $cm->context)) { return $updates; } $updates = course_check_module_updates_since($cm, $from, array(), $filter); $updates->answers = (object) array('updated' => false); $select = 'survey = ? AND userid = ? AND time > ?'; $params = array($cm->instance, $USER->id, $from); $answers = $DB->get_records_select('survey_answers', $select, $params, '', 'id'); if (!empty($answers)) { $updates->answers->updated = true; $updates->answers->itemids = array_keys($answers); } // Now, teachers should see other students updates. if (has_capability('mod/survey:readresponses', $cm->context)) { $select = 'survey = ? AND time > ?'; $params = array($cm->instance, $from); if (groups_get_activity_groupmode($cm) == SEPARATEGROUPS) { $groupusers = array_keys(groups_get_activity_shared_group_members($cm)); if (empty($groupusers)) { return $updates; } list($insql, $inparams) = $DB->get_in_or_equal($groupusers); $select .= ' AND userid ' . $insql; $params = array_merge($params, $inparams); } $updates->useranswers = (object) array('updated' => false); $answers = $DB->get_records_select('survey_answers', $select, $params, '', 'id'); if (!empty($answers)) { $updates->useranswers->updated = true; $updates->useranswers->itemids = array_keys($answers); } } return $updates; } /** * This function receives a calendar event and returns the action associated with it, or null if there is none. * * This is used by block_myoverview in order to display the event appropriately. If null is returned then the event * is not displayed on the block. * * @param calendar_event $event * @param \core_calendar\action_factory $factory * @param int $userid User id to use for all capability checks, etc. Set to 0 for current user (default). * @return \core_calendar\local\event\entities\action_interface|null */ function mod_survey_core_calendar_provide_event_action(calendar_event $event, \core_calendar\action_factory $factory, int $userid = 0) { global $USER; if (empty($userid)) { $userid = $USER->id; } $cm = get_fast_modinfo($event->courseid, $userid)->instances['survey'][$event->instance]; $context = context_module::instance($cm->id); if (!has_capability('mod/survey:participate', $context, $userid)) { return null; } $completion = new \completion_info($cm->get_course()); $completiondata = $completion->get_data($cm, false, $userid); if ($completiondata->completionstate != COMPLETION_INCOMPLETE) { return null; } return $factory->create_instance( get_string('view'), new \moodle_url('/mod/survey/view.php', ['id' => $cm->id]), 1, true ); } /** * Add a get_coursemodule_info function in case any survey type wants to add 'extra' information * for the course (see resource). * * Given a course_module object, this function returns any "extra" information that may be needed * when printing this activity in a course listing. See get_array_of_activities() in course/lib.php. * * @param stdClass $coursemodule The coursemodule object (record). * @return cached_cm_info An object on information that the courses * will know about (most noticeably, an icon). */ function survey_get_coursemodule_info($coursemodule) { global $DB; $dbparams = ['id' => $coursemodule->instance]; $fields = 'id, name, intro, introformat, completionsubmit'; if (!$survey = $DB->get_record('survey', $dbparams, $fields)) { return false; } $result = new cached_cm_info(); $result->name = $survey->name; if ($coursemodule->showdescription) { // Convert intro to html. Do not filter cached version, filters run at display time. $result->content = format_module_intro('survey', $survey, $coursemodule->id, false); } // Populate the custom completion rules as key => value pairs, but only if the completion mode is 'automatic'. if ($coursemodule->completion == COMPLETION_TRACKING_AUTOMATIC) { $result->customdata['customcompletionrules']['completionsubmit'] = $survey->completionsubmit; } return $result; } /** * Callback which returns human-readable strings describing the active completion custom rules for the module instance. * * @param cm_info|stdClass $cm object with fields ->completion and ->customdata['customcompletionrules'] * @return array $descriptions the array of descriptions for the custom rules. */ function mod_survey_get_completion_active_rule_descriptions($cm) { // Values will be present in cm_info, and we assume these are up to date. if (empty($cm->customdata['customcompletionrules']) || $cm->completion != COMPLETION_TRACKING_AUTOMATIC) { return []; } $descriptions = []; foreach ($cm->customdata['customcompletionrules'] as $key => $val) { switch ($key) { case 'completionsubmit': if (!empty($val)) { $descriptions[] = get_string('completionsubmit', 'survey'); } break; default: break; } } return $descriptions; }