complete.php

<?php

/**
* prints the form so the user can fill out the feedback
*
* @author Andreas Grabs
* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
* @package feedback
*/

require_once("../../config.php");
require_once("lib.php");
require_once($CFG->libdir . '/completionlib.php');

feedback_init_feedback_session();

$id = required_param('id', PARAM_INT);
$completedid = optional_param('completedid', false, PARAM_INT);
$preservevalues  = optional_param('preservevalues', 0,  PARAM_INT);
$courseid = optional_param('courseid', false, PARAM_INT);
$gopage = optional_param('gopage', -1, PARAM_INT);
$lastpage = optional_param('lastpage', false, PARAM_INT);
$startitempos = optional_param('startitempos', 0, PARAM_INT);
$lastitempos = optional_param('lastitempos', 0, PARAM_INT);
$anonymous_response = optional_param('anonymous_response', 0, PARAM_INT); //arb

$highlightrequired = false;

if(($formdata = data_submitted()) AND !confirm_sesskey()) {
    print_error('invalidsesskey');
}

//if the use hit enter into a textfield so the form should not submit
if(isset($formdata->sesskey) AND !isset($formdata->savevalues) AND !isset($formdata->gonextpage) AND !isset($formdata->gopreviouspage)) {
    $gopage = $formdata->lastpage;
}

if(isset($formdata->savevalues)) {
    $savevalues = true;
}else {
    $savevalues = false;
}

if($gopage < 0 AND !$savevalues) {
    if(isset($formdata->gonextpage)){
        $gopage = $lastpage + 1;
        $gonextpage = true;
        $gopreviouspage = false;
    }else if(isset($formdata->gopreviouspage)){
        $gopage = $lastpage - 1;
        $gonextpage = false;
        $gopreviouspage = true;
    }else {
        print_error('missingparameter');
    }
}else {
    $gonextpage = $gopreviouspage = false;
}

if (! $cm = get_coursemodule_from_id('feedback', $id)) {
    print_error('invalidcoursemodule');
}

if (! $course = $DB->get_record("course", array("id"=>$cm->course))) {
    print_error('coursemisconf');
}

if (! $feedback = $DB->get_record("feedback", array("id"=>$cm->instance))) {
    print_error('invalidcoursemodule');
}

if (!$context = get_context_instance(CONTEXT_MODULE, $cm->id)) {
        print_error('badcontext');
}

$feedback_complete_cap = false;

if(has_capability('mod/feedback:complete', $context)) {
    $feedback_complete_cap = true;
}

if(isset($CFG->feedback_allowfullanonymous)
            AND $CFG->feedback_allowfullanonymous
            AND $feedback->anonymous == FEEDBACK_ANONYMOUS_YES ) {
    $feedback_complete_cap = true;
}

//check whether the feedback is located and! started from the mainsite
if($course->id == SITEID AND !$courseid) {
    $courseid = SITEID;
}

//check whether the feedback is mapped to the given courseid
if($course->id == SITEID AND !has_capability('mod/feedback:edititems', $context)) {
    if($DB->get_records('feedback_sitecourse_map', array('feedbackid'=>$feedback->id))) {
        if(!$DB->get_record('feedback_sitecourse_map', array('feedbackid'=>$feedback->id, 'courseid'=>$courseid))){
            print_error('notavailable', 'feedback');
        }
    }
}

if($feedback->anonymous != FEEDBACK_ANONYMOUS_YES) {
    if($course->id == SITEID) {
        require_login($course->id, true);
    }else {
        require_login($course->id, true, $cm);
    }
} else {
    if($course->id == SITEID) {
        require_course_login($course, true);
    }else {
        require_course_login($course, true, $cm);
    }
}

//check whether the given courseid exists
if($courseid AND $courseid != SITEID) {
    if($course2 = $DB->get_record('course', array('id'=>$courseid))){
        require_course_login($course2); //this overwrites the object $course :-(
        $course = $DB->get_record("course", array("id"=>$cm->course)); // the workaround
    }else {
        print_error('invalidcourseid');
    }
}

if(!$feedback_complete_cap) {
    print_error('error');
}

/// Print the page header
$strfeedbacks = get_string("modulenameplural", "feedback");
$strfeedback  = get_string("modulename", "feedback");

$PAGE->navbar->add(get_string('feedback:complete', 'feedback'));
$PAGE->set_url('/mod/feedback/complete.php', array('id'=>$cm->id, 'gopage'=>$gopage, 'courseid'=>$course->id));
$PAGE->set_title(format_string($feedback->name));
echo $OUTPUT->header();

//ishidden check.
//feedback in courses
if ((empty($cm->visible) AND
        !has_capability('moodle/course:viewhiddenactivities', $context)) AND
        $course->id != SITEID) {
    notice(get_string("activityiscurrentlyhidden"));
}

//ishidden check.
//feedback on mainsite
if ((empty($cm->visible) AND
        !has_capability('moodle/course:viewhiddenactivities', $context)) AND
        $courseid == SITEID) {
    notice(get_string("activityiscurrentlyhidden"));
}

feedback_print_errors();

//check, if the feedback is open (timeopen, timeclose)
$checktime = time();
if(($feedback->timeopen > $checktime) OR ($feedback->timeclose < $checktime AND $feedback->timeclose > 0)) {
    echo $OUTPUT->box_start('generalbox boxaligncenter');
        echo '<h2><font color="red">'.get_string('feedback_is_not_open', 'feedback').'</font></h2>';
        echo $OUTPUT->continue_button($CFG->wwwroot.'/course/view.php?id='.$course->id);
    echo $OUTPUT->box_end();
    echo $OUTPUT->footer();
    exit;
}

//additional check for multiple-submit (prevent browsers back-button). the main-check is in view.php
$feedback_can_submit = true;
if($feedback->multiple_submit == 0 ) {
    if(feedback_is_already_submitted($feedback->id, $courseid)) {
        $feedback_can_submit = false;
    }
}
if($feedback_can_submit) {
    //preserving the items
    if($preservevalues == 1){
        if(!$SESSION->feedback->is_started == true)
            print_error('error', '', $CFG->wwwroot.'/course/view.php?id='.$course->id);
        //checken, ob alle required items einen wert haben
        if(feedback_check_values($_POST, $startitempos, $lastitempos)) {
                $userid = $USER->id; //arb
            if($completedid = feedback_save_values($_POST, $USER->id, true)){
                if($userid > 0) {
                    add_to_log($course->id, 'feedback', 'startcomplete', 'view.php?id='.$cm->id, $feedback->id, $cm->id, $userid);
                }
                if(!$gonextpage AND !$gopreviouspage) $preservevalues = false;//es kann gespeichert werden

            }else {
                $savereturn = 'failed';
                if(isset($lastpage)) {
                    $gopage = $lastpage;
                }else {
                    print_error('missingparameter');
                }
            }
        }else {
            $savereturn = 'missing';
            $highlightrequired = true;
            if(isset($lastpage)) {
                $gopage = $lastpage;
            }else {
                print_error('missingparameter');
            }

        }
    }

    //saving the items
    if($savevalues AND !$preservevalues){
        //exists there any pagebreak, so there are values in the feedback_valuetmp
        $userid = $USER->id; //arb

        if($feedback->anonymous == FEEDBACK_ANONYMOUS_NO) {
            $feedbackcompleted = feedback_get_current_completed($feedback->id, false, $courseid);
        }else{
            $feedbackcompleted = false;
        }
        $feedbackcompletedtmp = $DB->get_record('feedback_completedtmp', array('id'=>$completedid));
        //fake saving for switchrole
        $is_switchrole = feedback_check_is_switchrole();
        if($is_switchrole) {
            $savereturn = 'saved';
            feedback_delete_completedtmp($completedid);
        }else if($new_completed_id = feedback_save_tmp_values($feedbackcompletedtmp, $feedbackcompleted, $userid)) {
            $savereturn = 'saved';
            if($feedback->anonymous == FEEDBACK_ANONYMOUS_NO) {
                add_to_log($course->id, 'feedback', 'submit', 'view.php?id='.$cm->id, $feedback->id, $cm->id, $userid);
                feedback_send_email($cm, $feedback, $course, $userid);
            }else {
                feedback_send_email_anonym($cm, $feedback, $course, $userid);
            }
            //tracking the submit
            $tracking = new object();
            $tracking->userid = $USER->id;
            $tracking->feedback = $feedback->id;
            $tracking->completed = $new_completed_id;
            $DB->insert_record('feedback_tracking', $tracking);
            unset($SESSION->feedback->is_started);

        }else {
            $savereturn = 'failed';
        }

    }


    if($allbreaks = feedback_get_all_break_positions($feedback->id)){
        if($gopage <= 0) {
            $startposition = 0;
        }else {
            $startposition = $allbreaks[$gopage - 1];
        }
        $ispagebreak = true;
    }else {
        $startposition = 0;
        $newpage = 0;
        $ispagebreak = false;
    }

    //get the feedbackitems after the last shown pagebreak
    $feedbackitems = $DB->get_records_select('feedback_item', 'feedback = ? AND position > ?', array($feedback->id, $startposition), 'position');

    //get the first pagebreak
    if($pagebreaks = $DB->get_records('feedback_item', array('feedback'=>$feedback->id, 'typ'=>'pagebreak'), 'position')) {
        $pagebreaks = array_values($pagebreaks);
        $firstpagebreak = $pagebreaks[0];
    }else {
        $firstpagebreak = false;
    }
    $maxitemcount = $DB->count_records('feedback_item', array('feedback'=>$feedback->id));

    //get the values of completeds before done. Anonymous user can not get these values.
    if((!isset($SESSION->feedback->is_started)) AND (!isset($savereturn)) AND ($feedback->anonymous == FEEDBACK_ANONYMOUS_NO)) {
        if(!$feedbackcompletedtmp = feedback_get_current_completed($feedback->id, true, $courseid)) {
            if($feedbackcompleted = feedback_get_current_completed($feedback->id, false, $courseid)) {
                //copy the values to feedback_valuetmp create a completedtmp
                $feedbackcompletedtmp = feedback_set_tmp_values($feedbackcompleted);
            }
        }
    }else {
        $feedbackcompletedtmp = feedback_get_current_completed($feedback->id, true, $courseid);
    }

    /// Print the main part of the page
    ///////////////////////////////////////////////////////////////////////////
    ///////////////////////////////////////////////////////////////////////////
    ///////////////////////////////////////////////////////////////////////////
    $analysisurl = new moodle_url('/mod/feedback/analysis.php', array('id'=>$id));
    if($courseid > 0) {
        $analysisurl->param('courseid', $courseid);
    }
    echo $OUTPUT->heading(format_text($feedback->name));

    if( (intval($feedback->publish_stats) == 1) AND
            ( has_capability('mod/feedback:viewanalysepage', $context)) AND
            !( has_capability('mod/feedback:viewreports', $context)) ) {
        if($multiple_count = $DB->count_records('feedback_tracking', array('userid'=>$USER->id, 'feedback'=>$feedback->id))) {
            echo '<div class="mdl-align"><a href="'.$analysisurl->out().'">';
            echo get_string('completed_feedbacks', 'feedback').'</a>';
            echo '</div>';
        }
    }

    if(isset($savereturn) && $savereturn == 'saved') {
        if($feedback->page_after_submit) {
            echo $OUTPUT->box_start('generalbox boxaligncenter boxwidthwide');
            echo format_text($feedback->page_after_submit);
            echo $OUTPUT->box_end();
        } else {
            echo '<p align="center"><b><font color="green">'.get_string('entries_saved','feedback').'</font></b></p>';
            if( intval($feedback->publish_stats) == 1) {
                echo '<p align="center"><a href="'.$analysisurl->out().'">';
                echo get_string('completed_feedbacks', 'feedback').'</a>';
                echo '</p>';
            }
        }

        // Mark activity viewed for completion-tracking
        $completion=new completion_info($course);
        $completion->set_module_viewed($cm);

        if($feedback->site_after_submit) {
            echo $OUTPUT->continue_button(feedback_encode_target_url($feedback->site_after_submit));
        }else {
            if($courseid) {
                if($courseid == SITEID) {
                    echo $OUTPUT->continue_button($CFG->wwwroot);
                }else {
                    echo $OUTPUT->continue_button($CFG->wwwroot.'/course/view.php?id='.$courseid);
                }
            }else {
                if($course->id == SITEID) {
                    echo $OUTPUT->continue_button($CFG->wwwroot);
                } else {
                    echo $OUTPUT->continue_button($CFG->wwwroot.'/course/view.php?id='.$course->id);
                }
            }
        }
    }else {
        if(isset($savereturn) && $savereturn == 'failed') {
            echo '<p align="center"><b><font color="red">'.get_string('saving_failed','feedback').'</font></b></p>';
        }

        if(isset($savereturn) && $savereturn == 'missing') {
            echo '<p align="center"><b><font color="red">'.get_string('saving_failed_because_missing_or_false_values','feedback').'</font></b></p>';
        }

        //print the items
        if(is_array($feedbackitems)){
            echo $OUTPUT->box_start('generalbox boxaligncenter boxwidthwide');
            echo '<div class="mdl-align"><form name="frm" action="complete.php" method="post" onsubmit=" ">';
            echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
            echo '<table>';
            switch ($feedback->anonymous) {
                case FEEDBACK_ANONYMOUS_YES:
                    echo '<tr><th colspan="3" align="center"><input type="hidden" name="anonymous" value="1" /><input type="hidden" name="anonymous_response" value="'.FEEDBACK_ANONYMOUS_YES.'" />'.get_string('mode', 'feedback').': '.get_string('anonymous', 'feedback').'</th></tr>'; //arb
                    break;
                case FEEDBACK_ANONYMOUS_NO:
                    echo '<tr><th colspan="3" align="center"><input type="hidden" name="anonymous" value="0" /><input type="hidden" name="anonymous_response" value="'.FEEDBACK_ANONYMOUS_NO.'" />'.get_string('mode', 'feedback').': '.get_string('non_anonymous', 'feedback').'&nbsp;</td></tr>'; //arb
                    break;
            }
            //check, if there exists required-elements
            $countreq = $DB->count_records('feedback_item', array('feedback'=>$feedback->id, 'required'=>1));
            if($countreq > 0) {
                echo '<tr><td colspan="3"><font color="red">(*)' . get_string('items_are_required', 'feedback') . '</font></td></tr>';
            }

            unset($startitem);
            $itemnr = $DB->count_records_select('feedback_item', 'feedback = ? AND hasvalue = 1 AND position < ?', array($feedback->id, $startposition));
            $lastbreakposition = 0;
            foreach($feedbackitems as $feedbackitem){
                if(!isset($startitem)) {
                    //avoid showing double pagebreaks
                    if($feedbackitem->typ == 'pagebreak') continue;
                    $startitem = $feedbackitem;
                }
                $value = '';
                //get the value
                $frmvaluename = $feedbackitem->typ . '_'. $feedbackitem->id;
                if(isset($savereturn)) {
                    $value =  isset($formdata->{$frmvaluename})?$formdata->{$frmvaluename}:NULL;
                }else {
                    if(isset($feedbackcompletedtmp->id)) {
                        $value = feedback_get_item_value($feedbackcompletedtmp->id, $feedbackitem->id, true);
                    }
                }
                echo '<tr>';
                if($feedbackitem->hasvalue == 1 AND $feedback->autonumbering) {
                    $itemnr++;
                    echo '<td valign="top">' . $itemnr . '.&nbsp;</td>';
                } else {
                    echo '<td>&nbsp;</td>';
                }
                if($feedbackitem->typ != 'pagebreak') {
                    feedback_print_item_complete($feedbackitem, $value, $highlightrequired);
                }
                echo '</tr>';
                echo '<tr><td>&nbsp;</td></tr>';

                $lastbreakposition = $feedbackitem->position; //last item-pos (item or pagebreak)
                if($feedbackitem->typ == 'pagebreak'){
                    break;
                }else {
                    $lastitem = $feedbackitem;
                }
            }
            echo '</table>';
            echo '<input type="hidden" name="id" value="'.$id.'" />';
            echo '<input type="hidden" name="feedbackid" value="'.$feedback->id.'" />';
            echo '<input type="hidden" name="lastpage" value="'.$gopage.'" />';
            echo '<input type="hidden" name="completedid" value="'.(isset($feedbackcompletedtmp->id)?$feedbackcompletedtmp->id:'').'" />';
            echo '<input type="hidden" name="courseid" value="'. $courseid . '" />';
            echo '<input type="hidden" name="preservevalues" value="1" />';
            if(isset($startitem)) {
                echo '<input type="hidden" name="startitempos" value="'. $startitem->position . '" />';
                echo '<input type="hidden" name="lastitempos" value="'. $lastitem->position . '" />';
            }

            if( $ispagebreak AND $lastbreakposition > $firstpagebreak->position) {
                echo '<input name="gopreviouspage" type="submit" value="'.get_string('previous_page','feedback').'" />';
            }
            if($lastbreakposition < $maxitemcount){
                echo '<input name="gonextpage" type="submit" value="'.get_string('next_page','feedback').'" />';
            }
            if($lastbreakposition >= $maxitemcount) { //last page
                echo '<input name="savevalues" type="submit" value="'.get_string('save_entries','feedback').'" />';
            }

            echo '</form>';

                if($courseid) {
                    echo '<form name="frm" action="'.$CFG->wwwroot.'/course/view.php?id='.$courseid.'" method="post" onsubmit=" ">';
                }else{
                    if($course->id == SITEID) {
                        echo '<form name="frm" action="'.$CFG->wwwroot.'" method="post" onsubmit=" ">';
                    } else {
                        echo '<form name="frm" action="'.$CFG->wwwroot.'/course/view.php?id='.$course->id.'" method="post" onsubmit=" ">';
                    }
                }
            echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
            echo '<input type="hidden" name="courseid" value="'. $courseid . '" />';
            echo '<button type="submit">'.get_string('cancel').'</button>';
            echo '</form>';
            echo '</div>';
            $SESSION->feedback->is_started = true;
            echo $OUTPUT->box_end();
        }
    }
}else {
    echo $OUTPUT->box_start('generalbox boxaligncenter');
        echo '<h2><font color="red">'.get_string('this_feedback_is_already_submitted', 'feedback').'</font></h2>';
        echo $OUTPUT->continue_button($CFG->wwwroot.'/course/view.php?id='.$course->id);
    echo $OUTPUT->box_end();
}
/// Finish the page
///////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////

echo $OUTPUT->footer();