locallib.php | searchcode

/locallib.php

https://github.com/ccle/Moodle-Flashcard
PHP | 557 lines | 383 code | 62 blank | 112 comment | 76 complexity | 79929e4b16346e3dd55eb50eb46579c3 MD5 | raw file

<?php

/* @var $DB mysqli_native_moodle_database */
/* @var $OUTPUT core_renderer */
/* @var $PAGE moodle_page */
?>
<?php

/**
 * internal library of functions and constants for module flashcard
 * @package mod-flashcard
 * @category mod
 * @author Gustav Delius
 * @contributors Valery Fremaux
 * @version Moodle 2.0
 */
/**
 * Includes and requires
 */
/**
 *
 */
define('FLASHCARD_MEDIA_TEXT', 0);
define('FLASHCARD_MEDIA_IMAGE', 1);
define('FLASHCARD_MEDIA_SOUND', 2);
define('FLASHCARD_MEDIA_IMAGE_AND_SOUND', 3);
define('FLASHCARD_CARDS_PER_PAGE', 10);

/**
 * computes the last accessed date for a deck as the oldest card being in the deck
 * @param reference $flashcard the flashcard object
 * @param int $deck the deck number
 * @param int $userid the user the deck belongs to
 * @uses $USER for setting default user
 * @uses $CFG, $DB
 */
function flashcard_get_lastaccessed(&$flashcard, $deck, $userid = 0) {
    global $USER, $CFG, $DB;

    if ($userid == 0) $userid = $USER->id;

    $sql = "
        SELECT 
            MIN(lastaccessed) as lastaccessed
        FROM
            {flashcard_card}
        WHERE
            flashcardid = ? AND
            userid = ? AND
            deck = ?
    ";
    $rec = $DB->get_record_sql($sql, array($flashcard->id, $userid, $deck));
    return $rec->lastaccessed;
}

/**
 * prints a deck depending on deck status
 * @param reference $cm the coursemodule
 * @param int $deck the deck number
 * @uses $CFG
 */
function flashcard_print_deck(&$cm, $deck) {
    global $CFG;

    if ($deck == 0) {
        echo "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/emptydeck.jpg\"/>";
    }

    if ($deck > 0) {
        echo "<a href=\"view.php?view=play&amp;id={$cm->id}&amp;deck={$deck}&amp;what=initialize\" title=\"" . get_string('playwithme',
                'flashcard') . "\"><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/enableddeck.jpg\"/></a>";
    }

    if ($deck < 0) {
        $deck = -$deck;
        echo "<a href=\"view.php?view=play&amp;id={$cm->id}&amp;deck={$deck}&amp;what=initialize\" title=\"" . get_string('reinforce',
                'flashcard') . "\"><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/disableddeck.jpg\"/></a>";
    }
}

/**
 * prints the deck status for use in teacher's overview
 * @param reference $flashcard the flashcard object
 * @param int $userid the user for which printing status
 * @param object $status a status object to be filled by the function
 * @param boolean $return if true, returns the produced HTML, elsewhere prints it.
 * @uses $CFG
 */
function flashcard_print_deck_status(&$flashcard, $userid, &$status, $return) {
    global $CFG, $OUTPUT;

    $str = '';

    $str = "<table width=\"100%\"><tr valign=\"bottom\"><td width=\"30%\" align=\"center\">";

    // print for deck 1
    if ($status->decks[0]->count) {
        $image = ($status->decks[0]->reactivate) ? 'topenabled' : 'topdisabled';
        $height = $status->decks[0]->count * 3;
        $str .= "<table cellspacing=\"2\"><tr><td><div style=\"padding-bottom: {$height}px\" class=\"graphdeck\" align=\"top\"><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/{$image}.png\" title=\"" . get_string('cardsindeck',
                        'flashcard', $status->decks[0]->count) . "\"/></div></td><td>";
        $dayslateness = floor((time() - $status->decks[0]->lastaccess) / DAYSECS);
        // echo "late 1 : $dayslateness";
        $timetoreview = round(max(0,
                        ($status->decks[0]->lastaccess + ($flashcard->deck1_delay * HOURSECS) - time()) / DAYSECS));
        $strtimetoreview = get_string('timetoreview', 'flashcard', $timetoreview);
        for ($i = 0; $i < min($dayslateness, floor($flashcard->deck1_delay / 24)); $i++) {
            $str .= "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/clock.png\" valign=\"bottom\" title=\"$strtimetoreview\" />";
        }
        if ($dayslateness < $flashcard->deck1_delay / 24) {
            for (; $i < $flashcard->deck1_delay / 24; $i++) {
                $str .= "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/shadowclock.png\" valign=\"bottom\"  title=\"$strtimetoreview\" />";
            }
        } elseif ($dayslateness > $flashcard->deck1_delay / 24) {
            // Deck 1 has no release limit as cards can stay here as long as not viewed.
            for ($i = 0; $i < min($dayslateness - floor($flashcard->deck1_delay / 24), 4); $i++) {
                $str .= "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/overtime.png\" valign=\"bottom\" />";
            }
        }
        $str .= '</td></tr></table>';
    } else {
        $str .= "<div height=\"12px\" align=\"top\"><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/topempty.png\" /></div>";
    }

    $str .= "</td><td>" . $OUTPUT->pix_icon('a/r_breadcrumb', 'right breadcrumb icon') . "</td><td width=\"30%\" align=\"center\">";

    // print for deck 2
    if ($status->decks[1]->count) {
        $image = ($status->decks[1]->reactivate) ? 'topenabled' : 'topdisabled';
        $height = $status->decks[1]->count * 3;
        $str .= "<table cellspacing=\"2\"><tr><td><div style=\"padding-bottom: {$height}px\" class=\"graphdeck\" align=\"top\"><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/{$image}.png\" title=\"" . get_string('cardsindeck',
                        'flashcard', $status->decks[1]->count) . "\"/></div></td><td>";
        $dayslateness = floor((time() - $status->decks[1]->lastaccess) / DAYSECS);
        // echo "late 2 : $dayslateness ";
        $timetoreview = round(max(0,
                        ($status->decks[1]->lastaccess + ($flashcard->deck2_delay * HOURSECS) - time()) / DAYSECS));
        $strtimetoreview = get_string('timetoreview', 'flashcard', $timetoreview);
        for ($i = 0; $i < min($dayslateness, floor($flashcard->deck2_delay / 24)); $i++) {
            $str .= "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/clock.png\" valign=\"bottom\" title=\"$strtimetoreview\" />";
        }
        if ($dayslateness < $flashcard->deck2_delay / 24) {
            for (; $i < $flashcard->deck2_delay / 24; $i++) {
                $str .= "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/shadowclock.png\" valign=\"bottom\"  title=\"$strtimetoreview\" />";
            }
        } elseif ($dayslateness > $flashcard->deck2_delay / 24) {
            for ($i = 0; $i < min($dayslateness - floor($flashcard->deck2_delay / 24), $flashcard->deck2_release / 24);
                        $i++) {
                $str .= "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/overtime.png\" valign=\"bottom\" />";
            }
        }
        $str .= '</td></tr></table>';
    } else {
        $str .= "<div height=\"12px\" align=\"top\"><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/topempty.png\" /></div>";
    }

    if ($flashcard->decks >= 3) {
        $str .= "</td><td>" . $OUTPUT->pix_icon('a/r_breadcrumb', 'right breadcrumb icon') . "</td><td width=\"30%\" align=\"center\">";

        // print for deck 3
        if ($status->decks[2]->count) {
            $image = ($status->decks[2]->reactivate) ? 'topenabled' : 'topdisabled';
            $height = $status->decks[2]->count * 3;
            $str .= "<table cellspacing=\"2\"><tr><td><div style=\"padding-bottom: {$height}px\" class=\"graphdeck\" align=\"top\"><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/{$image}.png\" title=\"" . get_string('cardsindeck',
                            'flashcard', $status->decks[2]->count) . "\"/></div></td><td>";
            $dayslateness = floor((time() - $status->decks[2]->lastaccess) / DAYSECS);
            // echo "late 3 : $dayslateness ";
            $timetoreview = round(max(0,
                            ($status->decks[2]->lastaccess + ($flashcard->deck3_delay * HOURSECS) - time()) / DAYSECS));
            $strtimetoreview = get_string('timetoreview', 'flashcard', $timetoreview);
            for ($i = 0; $i < min($dayslateness, floor($flashcard->deck3_delay / 24)); $i++) {
                $str .= "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/clock.png\" valign=\"bottom\" />";
            }
            if ($dayslateness < $flashcard->deck3_delay / 24) {
                for (; $i < $flashcard->deck3_delay / 24; $i++) {
                    $str .= "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/shadowclock.png\" valign=\"bottom\"  title=\"$strtimetoreview\" />";
                }
            } elseif ($dayslateness > $flashcard->deck3_delay / 24) {
                for ($i = 0;
                            $i < min($dayslateness - floor($flashcard->deck3_delay / 24), $flashcard->deck3_release / 24);
                            $i++) {
                    $str .= "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/overtime.png\" valign=\"bottom\" />";
                }
            }
            $str .= '</td></tr></table>';
        } else {
            $str .= "<div height=\"12px\" align=\"top\"><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/topempty.png\"  title=\"$strtimetoreview\" /></div>";
        }
    }
    if ($flashcard->decks >= 4) {
        $str .= "</td><td>" . $OUTPUT->pix_icon('a/r_breadcrumb', 'right breadcrumb icon') . "</td><td width=\"30%\" align=\"center\">";

        // print for deck 4
        if ($status->decks[3]->count) {
            $image = ($status->decks[3]->reactivate) ? 'topenabled' : 'topdisabled';
            $height = $status->decks[3]->count * 3;
            $str .= "<table cellspacing=\"2\"><tr><td><div style=\"padding-bottom: {$height}px\" class=\"graphdeck\" align=\"top\"><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/{$image}.png\" title=\"" . get_string('cardsindeck',
                            'flashcard', $status->decks[3]->count) . "\"/></div></td><td>";
            $dayslateness = floor((time() - $status->decks[3]->lastaccess) / DAYSECS);
            $timetoreview = round(max(0,
                            ($status->decks[3]->lastaccess + ($flashcard->deck4_delay * HOURSECS) - time()) / DAYSECS));
            $strtimetoreview = get_string('timetoreview', 'flashcard', $timetoreview);
            for ($i = 0; $i < min($dayslateness, floor($flashcard->deck4_delay / 24)); $i++) {
                $str .= "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/clock.png\" valign=\"bottom\" />";
            }
            if ($dayslateness < $flashcard->deck4_delay / 24) {
                for (; $i < $flashcard->deck4_delay / 24; $i++) {
                    $str .= "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/shadowclock.png\" valign=\"bottom\" />";
                }
            } elseif ($dayslateness > $flashcard->deck4_delay / 24) {
                for ($i = 0;
                            $i < min($dayslateness - floor($flashcard->deck4_delay / 24), $flashcard->deck4_release / 24);
                            $i++) {
                    $str .= "<img src=\"{$CFG->wwwroot}/mod/flashcard/pix/overtime.png\" valign=\"bottom\" />";
                }
            }
            $str .= '</td></tr></table>';
        } else {
            $str .= "<div height=\"12px\" align=\"top\"><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/topempty.png\" /></div>";
        }
    }
    $str .= '</td></tr></table><br/>';

    $options['id'] = $flashcard->cm->id;
    $options['view'] = 'summary';
    $options['what'] = 'reset';
    $options['userid'] = $userid;
    $str .= $OUTPUT->single_button(new moodle_url("view.php", $options), get_string('reset'), 'get');

    if ($return) return $str;
    echo $str;
}

/**
 * prints some statistic counters about decks
 * @param reference $flashcard
 * @param boolean $return
 * @param int $userid
 * @uses $USER
 * @uses $CFG
 * @uses $DB
 */
function flashcard_print_deckcounts($flashcard, $return, $userid = 0) {
    global $USER, $CFG, $DB;

    if ($userid == 0) $userid = $USER->id;

    $sql = "
        SELECT 
            MIN(accesscount) AS minaccess,
            MAX(accesscount) AS maxaccess,
            AVG(accesscount) AS avgaccess,
            SUM(accesscount) AS sumaccess
        FROM
            {flashcard_card}
        WHERE
            flashcardid = ? AND
            userid = ?
    ";

    $rec = $DB->get_record_sql($sql, array($flashcard->id, $userid));

    $strminaccess = get_string('minaccess', 'flashcard');
    $strmaxaccess = get_string('maxaccess', 'flashcard');
    $stravgaccess = get_string('avgaccess', 'flashcard');
    $strsumaccess = get_string('sumaccess', 'flashcard');

    $str = "<table><tr valign=\"top\"><td class=\"smalltext\"><b>$strminaccess</b>:</td>";
    $str .= "<td class=\"smalltext\">{$rec->minaccess}</td></tr>";
    $str .= "<tr valign=\"top\"><td class=\"smalltext\"><b>$strmaxaccess</b>:</td>";
    $str .= "<td class=\"smalltext\">{$rec->maxaccess}</td></tr>";
    $str .= "<tr valign=\"top\"><td class=\"smalltext\"><b>$stravgaccess</b>:</td>";
    $str .= "<td class=\"smalltext\">{$rec->avgaccess}</td></tr>";
    $str .= "<tr valign=\"top\"><td class=\"smalltext\"><b>$strsumaccess</b>:</td>";
    $str .= "<td class=\"smalltext\">{$rec->sumaccess}</td></tr></table>";

    if ($return) return $str;
    echo $str;
}

/**
 * prints an image on card side.
 * @param reference $flashcard the flashcard object
 * @param string $imagename
 * @param boolean $return
 * @uses $CFG
 * @uses $COURSE
 */
function flashcard_print_image(&$flashcard, $imagename, $return = false) {
    global $CFG, $COURSE;

    $strmissingimage = get_string('missingimage', 'flashcard');
    if (empty($imagename)) return $strmissingimage;

    $imagepath = ($CFG->slasharguments) ? "/{$COURSE->id}/{$imagename}" : "?file=/{$COURSE->id}/{$imagename}";
    if (file_exists($CFG->dataroot . "/{$COURSE->id}/{$imagename}")) {
        $imagehtml = "<img src=\"{$CFG->wwwroot}/file.php{$imagepath}\" />";
    } else {
        $imagehtml = "<span class=\"error\">$strmissingimage</span>";
    }
    if (!$return) echo $imagehtml;
    return $imagehtml;
}

/**
 * plays a soundcard 
 * @param reference $flashcard
 * @param string $soundname the local name of the sound file. Should be wav or any playable sound format.
 * @param string $autostart if 'true' the sound starts playing immediately
 * @param boolean $return if true returns the html string
 * @uses $CFG
 * @uses $COURSE
 */
function flashcard_play_sound(&$flashcard, $soundname, $autostart = 'false', $return = false, $htmlname = '') {
    global $CFG, $COURSE;

    $strmissingsound = get_string('missingsound', 'flashcard');
    if (empty($soundname)) return $strmissingsound;

    $magic = rand(0, 100000);
    if ($htmlname == '') $htmlname = "bell_{$magic}";

    $soundpath = ($CFG->slasharguments) ? "/{$COURSE->id}/{$soundname}" : "?file=/{$COURSE->id}/{$soundname}";
    if (file_exists($CFG->dataroot . "/{$COURSE->id}/{$soundname}")) {
        $soundhtml = "<embed src=\"{$CFG->wwwroot}/file.php{$soundpath}\" autostart=\"$autostart\" hidden=\"false\" id=\"{$htmlname}\" height=\"30\" width=\"150\" />";
    } else {
        $soundhtml = "<span class=\"error\">$strmissingsound</span>";
    }
    if (!$return) echo $soundhtml;
    return $soundhtml;
}

/**
 * initialize decks for a given user. The initialization is soft as it will 
 * be able to add new subquestions
 * @param reference $flashcard
 * @param int $userid
 * @ues $DB
 */
function flashcard_initialize(&$flashcard, $userid) {
    global $DB;

    // get all cards (all decks)
    $cards = $DB->get_records_select('flashcard_card', 'flashcardid = ? AND userid = ?', array($flashcard->id, $userid));
    $registered = array();
    if (!empty($cards)) {
        foreach ($cards as $card) {
            $registered[] = $card->entryid;
        }
    }

    // get all subquestions
    if ($subquestions = $DB->get_records('flashcard_deckdata', array('flashcardid' => $flashcard->id), '', 'id,id')) {
        foreach ($subquestions as $subquestion) {
            if (in_array($subquestion->id, $registered)) continue;
            $card->userid = $userid;
            $card->flashcardid = $flashcard->id;
            $card->lastaccessed = time() - ($flashcard->deck1_delay * HOURSECS);
            $card->deck = 1;
            $card->entryid = $subquestion->id;
            if (!$DB->insert_record('flashcard_card', $card)) {
                print_error('dbcouldnotinsert', 'flashcard');
            }
        }
    } else {
        return false;
    }

    return true;
}

/**
 * get count, last access time and reactivability for all decks
 * @param reference $flashcard
 * @param int $userid
 * @uses $USER
 * @uses $DB
 */
function flashcard_get_deck_status(&$flashcard, $userid = 0) {
    global $USER, $DB;

    if ($userid == 0) $userid = $USER->id;

    $status = new stdClass();

    $dk3 = 0;
    $dk4 = 0;
    $dk1 = $DB->count_records('flashcard_card', array('flashcardid' => $flashcard->id, 'userid' => $userid, 'deck' => 1));
    $status->decks[0] = new stdClass();
    $status->decks[0]->count = $dk1;
    $dk2 = $DB->count_records('flashcard_card', array('flashcardid' => $flashcard->id, 'userid' => $userid, 'deck' => 2));
    $status->decks[1] = new stdClass();
    $status->decks[1]->count = $dk2;
    if ($flashcard->decks >= 3) {
        $dk3 = $DB->count_records('flashcard_card',
                array('flashcardid' => $flashcard->id, 'userid' => $userid, 'deck' => 3));
        $status->decks[2]->count = $dk3;
    }
    if ($flashcard->decks >= 4) {
        $dk4 = $DB->count_records('flashcard_card',
                array('flashcardid' => $flashcard->id, 'userid' => $userid, 'deck' => 4));
        $status->decks[3]->count = $dk4;
    }

    // not initialized for this user
    if ($dk1 + $dk2 + $dk3 + $dk4 == 0) {
        return null;
    }

    if ($dk1 > 0) {
        $status->decks[0]->lastaccess = flashcard_get_lastaccessed($flashcard, 1, $userid);
        $status->decks[0]->reactivate = (time() > ($status->decks[0]->lastaccess + $flashcard->deck1_delay * HOURSECS));
    }
    if ($dk2 > 0) {
        $status->decks[1]->lastaccess = flashcard_get_lastaccessed($flashcard, 2, $userid);
        $status->decks[1]->reactivate = (time() > ($status->decks[1]->lastaccess + $flashcard->deck2_delay * HOURSECS));
    }
    if ($flashcard->decks >= 3 && $dk3 > 0) {
        $status->decks[2]->lastaccess = flashcard_get_lastaccessed($flashcard, 3, $userid);
        $status->decks[2]->reactivate = (time() > ($status->decks[2]->lastaccess + $flashcard->deck3_delay * HOURSECS));
    }
    if ($flashcard->decks >= 4 && $dk4 > 0) {
        $status->decks[3]->lastaccess = flashcard_get_lastaccessed($flashcard, 4, $userid);
        $status->decks[3]->reactivate = (time() > ($status->decks[3]->lastaccess + $flashcard->deck4_delay));
    }

    return $status;
}

/**
 * get card status structure
 * @param reference $flashcard
 * @uses $CFG
 * @uses $DB
 */
function flashcard_get_card_status(&$flashcard) {
    global $CFG, $DB;

    // get decks by card
    $sql = "
        SELECT
           dd.questiontext,
           COUNT(c.id) as amount,
           c.deck AS deck
        FROM
            {flashcard_deckdata} dd
        LEFT JOIN
            {flashcard_card} c
        ON 
            c.entryid = dd.id
        WHERE
            c.flashcardid = ?
        GROUP BY
            c.entryid,
            c.deck
    ";
    $recs = $DB->get_records_sql($sql, array($flashcard->id));

    // get accessed by card
    $sql = "
        SELECT
           dd.questiontext,
           SUM(accesscount) AS accessed
        FROM
            {flashcard_deckdata} dd
        LEFT JOIN
            {flashcard_card} c
        ON 
            c.entryid = dd.id
        WHERE
            c.flashcardid = ?
        GROUP BY
            c.entryid
    ";
    $accesses = $DB->get_records_sql($sql, array($flashcard->id));

    $cards = array();
    foreach ($recs as $question => $rec) {
        if ($rec->deck == 1) $cards[$question]->deck[0] = $rec->amount;
        if ($rec->deck == 2) $cards[$question]->deck[1] = $rec->amount;
        if ($rec->deck == 3) $cards[$question]->deck[2] = $rec->amount;
        if ($rec->deck == 4) $cards[$question]->deck[3] = $rec->amount;
        $cards[$question]->accesscount = $accesses[$question]->accessed;
    }
    return $cards;
}

/**
 * prints a graphical represnetation of decks, proportionnaly to card count
 * @param reference $flashcard
 * @param object $card
 * @param boolean $return
 * @uses $CFG
 */
function flashcard_print_cardcounts(&$flashcard, $card, $return = false) {
    global $CFG;

    $str = '';

    $strs[] = "<td><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/topenabled.png\" /> (1) </td><td>" . '<div class="bar" style="height: 10px; width: ' . (1 + @$card->deck[0]) . 'px"></div></td>';
    $strs[] = "<td><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/topenabled.png\" /> (2) </td><td>" . '<div class="bar" style="height: 10px; width: ' . (1 + @$card->deck[1]) . 'px"></div></td>';
    if ($flashcard->decks >= 3) {
        $strs[] = "<td><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/topenabled.png\" /> (3) </td><td>" . '<div class="bar" style="height: 10px; width: ' . (1 + @$card->deck[2]) . 'px"></div></td>';
    }
    if ($flashcard->decks >= 4) {
        $strs[] = "<td><img src=\"{$CFG->wwwroot}/mod/flashcard/pix/topenabled.png\" /> (4) </td><td>" . '<div class="bar" style="height: 10px; width: ' . (1 + @$card->deck[3]) . 'px"></div></td>';
    }

    $str = "<table cellspacing=\"2\"><tr valign\"middle\">" . implode("</tr><tr valign=\"middle\">", $strs) . "</tr></table>";

    if ($return) return $str;
    echo $str;
}

/**
 * Get array of questions & answers for edit $page
 * If $page == -1 then take the last page
 * @param type $flashcard
 * @param type $page 
 */
function flashcard_get_page($flashcard, $page) {
    global $DB, $CFG;

    if ($page == -1) {
        //take the last page
        $cardsnum = $DB->count_records('flashcard_deckdata', array('flashcardid' => $flashcard->id));
        $page = (int) ($cardsnum / FLASHCARD_CARDS_PER_PAGE);
    }
    $cards = $DB->get_records('flashcard_deckdata', array('flashcardid' => $flashcard->id), 'id', '*',
            FLASHCARD_CARDS_PER_PAGE * $page, FLASHCARD_CARDS_PER_PAGE);

    $cm = get_coursemodule_from_instance('flashcard', $flashcard->id);
    $context = context_module::instance($cm->id);

    $ret = new object();
    $ret->answer = array();
    $ret->question = array();
    $ret->id = array();
    $editoroptions = array('context'=>$context ,'maxfiles' => EDITOR_UNLIMITED_FILES, 'maxbytes'=>$CFG->maxbytes, 'trusttext'=>true, 'noclean'=>true);
    
    $i = 0;
    foreach ($cards as $card) {
        $itemid = NULL;
        $currenttext = file_prepare_draft_area($itemid, $context->id, 'mod_flashcard', 'question', $card->id,
                $editoroptions, $card->questiontext);
        $ret->question[$i] = array('text' => $currenttext, 'format' => 1, 'itemid' => $itemid);

        $itemid = NULL;
        $currenttext = file_prepare_draft_area($itemid, $context->id, 'mod_flashcard', 'answer', $card->id,
                $editoroptions, $card->answertext);
        $ret->answer[$i] = array('text' => $currenttext, 'format' => 1, 'itemid' => $itemid);

        $ret->id[$i] = $card->id;
        $i++;
    }

    return $ret;
}