chamilo-lms2/main/coursecopy/copy_course_session.php

<?php
/* For licensing terms, see /license.txt */

/**
 * Copy resources from one course in a session to another one.
 *
 * @author Christian Fasanando <christian.fasanando@dokeos.com>
 * @author Julio Montoya <gugli100@gmail.com> Lots of bug fixes/improvements
 * @package chamilo.backup
 */

// Language files that need to be included
$language_file = array('coursebackup', 'admin');

$cidReset = true;
require_once '../inc/global.inc.php';
$current_course_tool  = TOOL_COURSE_MAINTENANCE;

api_protect_global_admin_script();
api_protect_limit_for_session_admin();

require_once api_get_path(LIBRARY_PATH).'fileManage.lib.php';
require_once api_get_path(LIBRARY_PATH).'xajax/xajax.inc.php';

require_once 'classes/CourseBuilder.class.php';
require_once 'classes/CourseRestorer.class.php';
require_once 'classes/CourseSelectForm.class.php';

$xajax = new xajax();
$xajax->registerFunction('search_courses');

if (!api_is_allowed_to_edit() && !api_is_session_admin()) {
    api_not_allowed(true);
}

// Remove memory and time limits as much as possible as this might be a long process...
if (function_exists('ini_set')) {
    api_set_memory_limit('256M');
    ini_set('max_execution_time', 1800);
}

$this_section = SECTION_PLATFORM_ADMIN;

$nameTools = get_lang('CopyCourse');
$interbreadcrumb[] = array('url' => '../admin/index.php', 'name' => get_lang('PlatformAdmin'));

// Database Table Definitions
$tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
$tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
$tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
$tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
$tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);

/* FUNCTIONS */

function make_select_session_list($name, $sessions, $attr = array())
{
    $attributes = '';
    if (count($attr) > 0) {
        foreach ($attr as $key => $value) {
            $attributes .= ' '.$key.'="'.$value.'"';
        }
    }
    $output = '<select name="'.$name.'" '.$attributes.'>';

    if (count($sessions) == 0) {
        $output .= '<option value = "0">'.get_lang('ThereIsNotStillASession').'</option>';
    } else {
        $output .= '<option value = "0">'.get_lang('SelectASession').'</option>';
    }

    if (is_array($sessions)) {
        foreach ($sessions as $session) {
            $categoryName = '';
            if (!empty($session['category_name'])) {
                $categoryName = ' ('.$session['category_name'].')';
            }

            $output .= '<option value="'.$session['id'].'">'.
                $session['name'].' '.$categoryName.
            '</option>';
        }
    }
    $output .= '</select>';

    return $output;
}

function display_form()
{
    $html  = '';
    $sessions = SessionManager::get_sessions_list(array(), array('name', 'ASC'));

    // Actions
    $html .= '<div class="actions">';
    // Link back to the documents overview
    $html .= '<a href="../admin/index.php">'.
        Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('PlatformAdmin'), '', ICON_SIZE_MEDIUM).
        '</a>';
    $html .= '</div>';

    $html .= Display::return_message(get_lang('CopyCourseFromSessionToSessionExplanation'));

    $html .= '<form name="formulaire" method="post" action="'.api_get_self().'" >';
    $html .= '<table border="0" cellpadding="5" cellspacing="0" width="100%">';

    // origin
    $html .= '<tr><td width="15%"><b>'.get_lang('OriginCoursesFromSession').':</b></td>';
    $html .= '<td width="10%" align="left">'.make_select_session_list('sessions_list_origin', $sessions, array('onchange' => 'javascript: xajax_search_courses(this.value,\'origin\');')).'</td>';
    $html .= '<td width="50%"><div id="ajax_list_courses_origin">';
    $html .= '<select id="origin" name="SessionCoursesListOrigin[]"  style="width:380px;"></select></div></td></tr>';

    //destination
    $html .= '<tr><td width="15%"><b>'.get_lang('DestinationCoursesFromSession').':</b></td>';
    $html .= '<td width="10%" align="left"><div id="ajax_sessions_list_destination">';
    $html .= '<select name="sessions_list_destination" onchange="javascript: xajax_search_courses(this.value,\'destination\');">';
    $html .= '<option value = "0">'.get_lang('ThereIsNotStillASession').'</option></select ></div></td>';

    $html .= '<td width="50%">';
    $html .= '<div id="ajax_list_courses_destination">';
    $html .= '<select id="destination" name="SessionCoursesListDestination[]" style="width:380px;" ></select></div></td>';
    $html .= '</tr></table>';

    $html .= '<h3>'.get_lang('TypeOfCopy').'</h3>';
    $html .= '<label class="radio"><input type="radio" id="copy_option_1" name="copy_option" value="full_copy" checked="checked"/>';
    $html .= get_lang('FullCopy').'</label><br/>';
    $html .= '<label class="radio"><input type="radio" id="copy_option_2" name="copy_option" value="select_items" disabled="disabled"/>';
    $html .= ' '.get_lang('LetMeSelectItems').'</label><br/>';

    $html .= '<label class="checkbox"><input type="checkbox" id="copy_base_content_id" name="copy_only_session_items" />'.get_lang('CopyOnlySessionItems').'</label><br /><br/>';

    $html .= '<button class="save" type="submit" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang('ConfirmYourChoice'), ENT_QUOTES))."'".')) return false;">'.get_lang('CopyCourse').'</button>';

    // Add Security token
    $html .= '<input type="hidden" value="' . Security::get_token() . '" name="sec_token">';

    $html .= '</form>';

    echo $html;
}

function search_courses($id_session, $type)
{
    global $tbl_course, $tbl_session_rel_course, $course_list;
    $xajax_response = new XajaxResponse();
    $select_destination = '';
    $return = null;

    if (!empty($type)) {
        $id_session = intval($id_session);
        if ($type == 'origin') {
            $course_list = SessionManager::get_course_list_by_session_id($id_session);
            $temp_course_list = array();
            $return .= '<select id="origin" name="SessionCoursesListOrigin[]" style="width:380px;" onclick="javascript: checkSelected(this.id,\'copy_option_2\',\'title_option2\',\'destination\');">';

            foreach ($course_list as $course) {
                $temp_course_list[] = "'{$course['code']}'";
                $return .= '<option value="'.$course['code'].'" title="'.@htmlspecialchars($course['title'].' ('.$course['visual_code'].')', ENT_QUOTES, api_get_system_encoding()).'">'.$course['title'].' ('.$course['visual_code'].')</option>';
            }

            $return .= '</select>';
            $_SESSION['course_list']     = $temp_course_list;
            $_SESSION['session_origin']  = $id_session;

            // Build select for destination sessions where is not included current session from select origin
            if (!empty($id_session)) {

                $sessions = SessionManager::get_sessions_list(array(), array('name', 'ASC'));

                $select_destination .= '<select name="sessions_list_destination" width="380px" onchange = "javascript: xajax_search_courses(this.value,\'destination\');">';
                $select_destination .= '<option value = "0">-- '.get_lang('SelectASession').' --</option>';
                foreach ($sessions as $session) {
                    if ($id_session == $session['id']) {
                        continue;
                    };
                    if (!empty($session['category_name'])) {
                        $session['category_name'] = ' ('.$session['category_name'].') ';
                    }
                    $select_destination .= '<option value="'.$session['id'].'">'.$session['name'].' '.$session['category_name'].'</option>';
                }
                $select_destination .= '</select>';
                $xajax_response -> addAssign('ajax_sessions_list_destination', 'innerHTML', api_utf8_encode($select_destination));
            } else {
                $select_destination .= '<select name="sessions_list_destination" width="380px" onchange = "javascript: xajax_search_courses(this.value,\'destination\');">';
                $select_destination .= '<option value = "0">'.get_lang('ThereIsNotStillASession').'</option>';
                $select_destination .= '</select>';
                $xajax_response -> addAssign('ajax_sessions_list_destination', 'innerHTML', api_utf8_encode($select_destination));
            }

            // Select multiple destination empty
            $select_multiple_empty = '<select id="destination" name="SessionCoursesListDestination[]" style="width:380px;"></select>';

            // Send response by ajax
            $xajax_response -> addAssign('ajax_list_courses_origin', 'innerHTML', api_utf8_encode($return));
            $xajax_response -> addAssign('ajax_list_courses_destination', 'innerHTML', api_utf8_encode($select_multiple_empty));
        } else {
            //Left Select - Destination
            $list_courses_origin = implode(',', $_SESSION['course_list']);
            $session_origin = $_SESSION['session_origin'];

            // Search courses by id_session where course codes is include en courses list destination
            $sql = "SELECT c.code, c.visual_code, c.title, src.id_session
                    FROM $tbl_course c, $tbl_session_rel_course src
                    WHERE src.course_code = c.code
                    AND src.id_session = '".intval($id_session)."'";
                    //AND c.code IN ($list_courses_origin)";
            $rs = Database::query($sql);

            $course_list_destination = array();
            $return .= '<select id="destination" name="SessionCoursesListDestination[]" style="width:380px;" >';
            while ($course = Database :: fetch_array($rs)) {
                $course_list_destination[] = $course['code'];
                $return .= '<option value="'.$course['code'].'" title="'.@htmlspecialchars($course['title'].' ('.$course['visual_code'].')', ENT_QUOTES, api_get_system_encoding()).'">'.$course['title'].' ('.$course['visual_code'].')</option>';
            }
            $return .= '</select>';
            $_SESSION['course_list_destination'] = $course_list_destination;

            // Send response by ajax
            $xajax_response->addAssign(
                'ajax_list_courses_destination',
                'innerHTML',
                api_utf8_encode($return)
            );
        }
    }
    return $xajax_response;
}
$xajax->processRequests();

/* HTML head extra */

$htmlHeadXtra[] = $xajax->getJavascript( api_get_path(WEB_LIBRARY_PATH).'xajax/');
$htmlHeadXtra[] = '<script type="text/javascript">
function checkSelected(id_select,id_radio,id_title,id_destination) {
   var num=0;
   obj_origin = document.getElementById(id_select);
   obj_destination = document.getElementById(id_destination);

   for (x=0;x<obj_origin.options.length;x++) {
      if (obj_origin.options[x].selected) {
            if (obj_destination.options.length > 0) {
                for (y=0;y<obj_destination.options.length;y++) {
                        if (obj_origin.options[x].value == obj_destination.options[y].value) {
                            obj_destination.options[y].selected = true;
                        }
                }
            }
            num++;
        } else {
            if (obj_destination.options.length > 0) {
                for (y=0;y<obj_destination.options.length;y++) {
                    if (obj_origin.options[x].value == obj_destination.options[y].value) {
                        obj_destination.options[y].selected = false;
                    }
                }
            }
        }
   }

   if (num == 1) {
      document.getElementById(id_radio).disabled = false;
      document.getElementById(id_title).style.color = \'#000\';
   } else {
      document.getElementById(id_radio).disabled = true;
      document.getElementById(id_title).style.color = \'#aaa\';
   }
}
</script>';

Display::display_header($nameTools);

$with_base_content = true;
if (isset($_POST['copy_only_session_items']) && $_POST['copy_only_session_items']) {
    $with_base_content = false;
}

/*  MAIN CODE  */
if (Security::check_token('post') && (
        (
            isset($_POST['action']) &&
            $_POST['action'] == 'course_select_form'
        ) || (
            isset($_POST['copy_option']) &&
            $_POST['copy_option'] == 'full_copy'
        )
    )
) {
    // Clear token
    Security::clear_token();
    $destination_course = $origin_course = $destination_session = $origin_session = '';
    if (isset ($_POST['action']) && $_POST['action'] == 'course_select_form') {
        $destination_course	 	= $_POST['destination_course'];
        $origin_course 			= $_POST['origin_course'];
        $destination_session 	= $_POST['destination_session'];
        $origin_session 		= $_POST['origin_session'];

        $course = CourseSelectForm::get_posted_course(
            'copy_course',
            $origin_session,
            $origin_course
        );

        $cr = new CourseRestorer($course);
        //$cr->set_file_option($_POST['same_file_name_option']);
        $cr->restore($destination_course, $destination_session);
        Display::display_confirmation_message(get_lang('CopyFinished'));
        display_form();
    } else {

        $arr_course_origin 		= array();
        $arr_course_destination = array();
        $destination_session 	= '';
        $origin_session 		= '';

        if (isset($_POST['SessionCoursesListOrigin'])) {
            $arr_course_origin 		= $_POST['SessionCoursesListOrigin'];
        }
        if (isset($_POST['SessionCoursesListDestination'])) {
            $arr_course_destination = $_POST['SessionCoursesListDestination'];
        }
        if (isset($_POST['sessions_list_destination'])) {
            $destination_session 	= $_POST['sessions_list_destination'];
        }
        if (isset($_POST['sessions_list_origin'])) {
            $origin_session 		= $_POST['sessions_list_origin'];
        }

        if ((is_array($arr_course_origin) && count($arr_course_origin) > 0) && !empty($destination_session)) {
            //We need only one value
            if (count($arr_course_origin) > 1 || count($arr_course_destination) > 1) {
                Display::display_error_message(get_lang('YouMustSelectACourseFromOriginalSession'));
            } else {
                //foreach ($arr_course_origin as $course_origin) {
                //first element of the array
                $course_code = $arr_course_origin[0];
                $course_destinatination = $arr_course_destination[0];

                $course_origin = api_get_course_info($course_code);
                $cb = new CourseBuilder('', $course_origin);
                $course = $cb->build($origin_session, $course_code, $with_base_content);
                $cr = new CourseRestorer($course);
                $cr->restore($course_destinatination, $destination_session);

            }
            Display::display_confirmation_message(get_lang('CopyFinished'));
            display_form();
        } else {
            Display::display_error_message(get_lang('YouMustSelectACourseFromOriginalSession'));
            display_form();
        }
    }
} elseif (Security::check_token('post') && (
        isset($_POST['copy_option']) &&
        $_POST['copy_option'] == 'select_items'
    )
) {
    // Clear token
    Security::clear_token();

    // Else, if a CourseSelectForm is requested, show it
    if (api_get_setting('show_glossary_in_documents') != 'none') {
        Display::display_normal_message(get_lang('ToExportDocumentsWithGlossaryYouHaveToSelectGlossary'));
    }

    $arr_course_origin 		= array();
    $arr_course_destination = array();
    $destination_session 	= '';
    $origin_session 		= '';

    if (isset($_POST['SessionCoursesListOrigin'])) {
        $arr_course_origin 		= $_POST['SessionCoursesListOrigin'];
    }
    if (isset($_POST['SessionCoursesListDestination'])) {
        $arr_course_destination = $_POST['SessionCoursesListDestination'];
    }
    if (isset($_POST['sessions_list_destination'])) {
        $destination_session 	= $_POST['sessions_list_destination'];
    }
    if (isset($_POST['sessions_list_origin'])) {
        $origin_session 		= $_POST['sessions_list_origin'];
    }

    if ((is_array($arr_course_origin) && count($arr_course_origin) > 0) && !empty($destination_session)) {
        Display::display_normal_message(get_lang('ToExportLearnpathWithQuizYouHaveToSelectQuiz'));
        $course_origin = api_get_course_info($arr_course_origin[0]);
        $cb = new CourseBuilder('', $course_origin);
        $course = $cb->build($origin_session, $arr_course_origin[0], $with_base_content);
        //$hiddenFields['same_file_name_option'] = $_POST['same_file_name_option'];
        $hiddenFields['destination_course'] 	= $arr_course_destination[0];
        $hiddenFields['origin_course'] 		= $arr_course_origin[0];
        $hiddenFields['destination_session'] 	= $destination_session;
        $hiddenFields['origin_session'] 		= $origin_session;
        // Add token to Course select form
        $hiddenFields['sec_token'] = Security::get_token();

        CourseSelectForm :: display_form($course, $hiddenFields, true);
        echo '<div style="float:right"><a href="javascript:window.back();">'.
            Display::return_icon(
                'back.png',
                get_lang('Back').' '.get_lang('To').' '.get_lang('PlatformAdmin'),
                array('style' => 'vertical-align:middle')
            ).
            get_lang('Back').'</a></div>';
    } else {
        Display::display_error_message(
            get_lang('You must select a course from original session and select a destination session')
        );
        display_form();
    }
} else {
    display_form();
}

Display::display_footer();