playview.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/>.

/**
 * This view allows playing with a deck
 *
 * @package mod_flashcard
 * @category mod
 * @author Gustav Delius
 * @author Valery Fremaux
 * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
 */
defined('MOODLE_INTERNAL') || die();

$PAGE->requires->js('/mod/flashcard/players/flowplayer/flowplayer.js');

// Invoke controller.

// We need it in controller.
$deck = required_param('deck', PARAM_INT);

$subquestions = $DB->get_records('flashcard_deckdata', array('flashcardid' => $flashcard->id));

if ($action != '') {
    include($CFG->dirroot.'/mod/flashcard/playview.controller.php');
}

// Unmark state for this deck.
$params = array('userid' => $USER->id, 'flashcardid' => $flashcard->id, 'deck' => $deck);
$DB->delete_records('flashcard_userdeck_state', $params);

if (empty($subquestions)) {
    echo $out;
    echo $OUTPUT->box_start();
    echo print_string('undefinedquestionset', 'flashcard');
    echo $OUTPUT->box_end();
    echo $OUTPUT->footer($course);
    return;
}

$consumed = explode(',', @$_SESSION['flashcard_consumed']);
$subquestions = array();
list($usql, $inparams) = $DB->get_in_or_equal($consumed, SQL_PARAMS_QM, 'param0000', false); // Negative IN.

$select = "
    flashcardid = ? AND
    userid = ? AND
    deck = ? AND
    id $usql
";

$params = array($flashcard->id, $USER->id, $deck);
if (!empty($inparams)) {
    foreach ($inparams as $p) {
        if (empty($p)) {
            // Fixes PostGreSQL behaviour. https://github.com/vfremaux/moodle-mod_flashcard/issues/14#issuecomment-527197394
            $p = 0;
        }
        $params[] = $p;
    }
}

if ($cards = $DB->get_records_select('flashcard_card', $select, $params)) {
    foreach ($cards as $card) {
        $obj = new stdClass();
        $obj->entryid = $card->entryid;
        $obj->cardid = $card->id;
        $subquestions[] = $obj;
    }
} else {
    echo $out;
    echo $OUTPUT->box(get_string('nomorecards', 'flashcard'), 'notify');
    echo $OUTPUT->continue_button($thisurl."?view=checkdecks&amp;id={$cm->id}");
    echo $OUTPUT->footer($course);
    die;
}

// Print deferred header.

echo $out;

// Randomize and get a question (obviously it is not a consumed question).


echo $renderer->playview($flashcard, $cm, $cards, $subquestions);