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import.php
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import.php
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<?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/>.
/**
* Import page content from other ouwiki activities into this wiki.
* @package mod
* @subpackage ouwiki
* @copyright 2013 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once(dirname(__FILE__) . '/../../config.php');
require($CFG->dirroot . '/mod/ouwiki/basicpage.php');
require($CFG->dirroot . '/mod/ouwiki/import_form.php');
$pageparams = ouwiki_display_wiki_parameters($pagename, $subwiki, $cm, OUWIKI_PARAMS_ARRAY);
/* Define/work out the step of the import process we are on.
Step 1 - Select wiki (+sub wiki)
Step 2 - Select pages
Step 3 - Confirm
Step 4 - Process import
*/
$curstep = optional_param('step', 1, PARAM_INT);
if (optional_param('cancel', '', PARAM_TEXT) == get_string('cancel')) {
// Cancelled last step, go back one.
$curstep -= 2;
}
$pageparams['step'] = $curstep;
$url = new moodle_url('/mod/ouwiki/import.php', array('id' => $id, 'page' => $pagename));
$PAGE->set_url($url);
$PAGE->set_cm($cm);
$PAGE->set_pagelayout('incourse');
$ouwikioutput = $PAGE->get_renderer('mod_ouwiki');
echo $ouwikioutput->ouwiki_print_start($ouwiki, $cm, $course, $subwiki, get_string('import', 'ouwiki'), $context);
echo $OUTPUT->heading(get_string('import', 'ouwiki'));
if ((!$subwiki->canedit) || (!$ouwiki->allowimport)) {
print_error('You are not able to add content to this wiki.');
}
// Get course id of wiki that is being imported from. Only used in steps 2,3 and 4.
$importedfromcourse = $course;
$courseid = optional_param('courseid', 0, PARAM_INT);
if ($courseid) {
$importedfromcourse = get_course($courseid);
}
echo '<div class="ouwiki_import ouwiki_import_step' . $curstep . '" id="ouwiki_belowtabs">';
if ($curstep == 1) {
$courses = enrol_get_users_courses($USER->id, true);
$pageparams['step']++;
$wikisfound = false;
foreach ($courses as $listcourse) {
// Select wiki from course step, first get wikis.
$modinfo = get_fast_modinfo($listcourse);
$allwikis = $modinfo->get_instances_of('ouwiki');
unset($allwikis[$ouwiki->id]);// Don't include current activity.
$availablewikis = array();
foreach ($allwikis as $wikiact) {
$wikicontext = context_module::instance($wikiact->id);
// Check wiki is available.
if (!$wikiact->uservisible ||
!has_capability('mod/ouwiki:view', $wikicontext)) {
continue;
}
// Create object for this wiki that we will use if it is shown.
$wikiob = new stdClass();
$wikiob->cm = $wikiact;
$wikiob->selector = array();
$wikiob->selectordefault = 0;
$wikiob->nocontent = false;
// For each wiki type do further access checks and get more info.
$wikiinst = $DB->get_record('ouwiki', array('id' => $wikiact->instance));
if (!$wikiinst) {
continue;
}
if ($wikiinst->subwikis == OUWIKI_SUBWIKIS_SINGLE) {
// Course wiki, check subwiki and start page exists.
if (!$wikisubwiki = $DB->get_record_select('ouwiki_subwikis', 'wikiid = ? AND
groupid IS NULL AND userid IS NULL', array($wikiinst->id), 'id')) {
$wikiob->nocontent = true;
} else if (!ouwiki_subwiki_content_exists($wikisubwiki->id)) {
$wikiob->nocontent = true;
} else {
$wikiob->selectordefault = $wikisubwiki->id;
}
} else if ($wikiinst->subwikis == OUWIKI_SUBWIKIS_GROUPS) {
// Group wiki. Get all groups user can see (checking they have content to import).
if (!$groups = groups_get_activity_allowed_groups($wikiact)) {
continue;
}
$default = groups_get_activity_group($wikiact);
foreach ($groups as $group) {
// Check group subwiki has content before adding it.
if ($wikisubwiki = $DB->get_record_select('ouwiki_subwikis', 'wikiid = ?
AND groupid = ? AND userid IS NULL', array($wikiinst->id, $group->id), 'id')) {
if (ouwiki_subwiki_content_exists($wikisubwiki->id)) {
$wikiob->selector[$wikisubwiki->id] = format_string($group->name);
if ($group->id == $default) {
$wikiob->selectordefault = $wikisubwiki->id;
}
}
}
}
// If no groups have content disable wiki selector.
if (empty($wikiob->selector)) {
$wikiob->nocontent = true;
}
} else if ($wikiinst->subwikis == OUWIKI_SUBWIKIS_INDIVIDUAL) {
// Individual wiki. Get all users user can view (checking subwiki for content).
$userfields = user_picture::fields('u', null, 'uid');
$sql = "SELECT sw.id, $userfields
FROM {ouwiki_subwikis} sw
INNER JOIN {user} u ON sw.userid = u.id
INNER JOIN (SELECT subwikiid
FROM {ouwiki_pages}
WHERE currentversionid IS NOT NULL
GROUP BY subwikiid) as wp on wp.subwikiid = sw.id
WHERE sw.wikiid = ?";
$params = array($wikiinst->id);
if (!has_capability('mod/ouwiki:viewallindividuals', $wikicontext)) {
if (!has_capability('mod/ouwiki:viewgroupindividuals', $wikicontext)) {
// Can only see own wiki (if exists).
$sql .= ' AND sw.userid = ?';
$params[] = $USER->id;
} else {
// Can see any users that are in the same group(s).
if ($theirgroups = groups_get_all_groups($wikiact->course, $USER->id,
$wikiact->groupingid, 'g.id')) {
$groupmembers = array();
foreach ($theirgroups as $group) {
if ($members = groups_get_members($group->id, 'u.id')) {
$groupmembers = array_merge($groupmembers, array_keys($members));
}
}
if (!empty($groupmembers)) {
list($insql, $inparams) = $DB->get_in_or_equal($groupmembers);
$sql .= 'AND sw.userid ' . $insql;
$params = array_merge($params, $inparams);
}
}
}
}
$sql .= ' ORDER BY u.lastname, u.firstname';
if (!$choices = $DB->get_records_sql($sql, $params)) {
$wikiob->nocontent = true;
}
foreach ($choices as $wikisubwiki) {
$wikiob->selector[$wikisubwiki->id] = fullname($wikisubwiki);
if ($wikisubwiki->uid == $USER->id) {
$wikiob->selectordefault = $wikisubwiki->id;
}
}
}
// Add wiki info to list of available wiki activities.
$availablewikis[] = $wikiob;
}
$courserenderer = $PAGE->get_renderer('course');
// Create selection forms for available wikis.
$pageparams['courseid'] = $listcourse->id;
$i = 0;
foreach ($availablewikis as $showwiki) {
if ($i == 0) {
$coursename = $listcourse->shortname . ' ' . $listcourse->fullname;
echo html_writer::div($coursename);
}
$i++;
echo html_writer::start_div('ouwiki_import_act');
$customdata = array('wikiinfo' => $showwiki, 'params' => $pageparams,
'actlink' => $courserenderer->course_section_cm_name($showwiki->cm));
$form = new mod_ouwiki_import_wikiselect_form(null, $customdata);
$form->display();
echo html_writer::end_div();
$wikisfound = true;
}
}
if (!$wikisfound) {
// If courses are empty print a warning message.
echo $OUTPUT->notification(get_string('unabletoimport', 'ouwiki'));
unset($pageparams['step']);
echo $OUTPUT->continue_button(new moodle_url('/mod/ouwiki/view.php', $pageparams));
}
} else if ($curstep == 2) {
// Select pages, first ensure step 1 data correct.
require_sesskey();
if ($pagelist = optional_param('pages', null, PARAM_SEQUENCE)) {
// Full page list available e.g. from cancel.
$pagelist = explode(',', $pagelist);
}
$selectedact = required_param('importid', PARAM_INT);
$selectedsubwiki = required_param('subwikiid' . $selectedact, PARAM_INT);
$selectedouwiki = '';
ouwiki_get_wikiinfo($selectedact, $selectedsubwiki, $selectedouwiki, $importedfromcourse);
echo html_writer::tag('p', get_string('import_selectwiki', 'ouwiki', $selectedact->get_formatted_name()));
// Build page selector.
$pages = '';
$index = ouwiki_get_subwiki_index($selectedsubwiki->id);
ouwiki_build_tree($index);
// Print out in hierarchical form...
$pages .= html_writer::start_tag('ul', array('class' => 'ouw_indextree'));
$pages .= ouwiki_tree_index('ouwiki_display_wikiindex_page_in_index', reset($index)->pageid,
$index, $selectedsubwiki, $selectedact, null, true);
$pages .= html_writer::end_tag('ul');
$orphans = '';
foreach ($index as $indexitem) {
if (count($indexitem->linksfrom) == 0 && $indexitem->title !== '') {
$orphanindex = ouwiki_get_sub_tree_from_index($indexitem->pageid, $index);
ouwiki_build_tree($orphanindex);
$orphans .= ouwiki_tree_index('ouwiki_display_wikiindex_page_in_index',
$indexitem->pageid, $orphanindex, $selectedsubwiki, $selectedact, null, true);
}
}
if (!empty($orphans)) {
$pages .= $OUTPUT->heading(get_string('orphanpages', 'ouwiki'), 3);
$pages .= html_writer::start_tag('ul', array('class' => 'ouw_indextree'));
$pages .= $orphans;
$pages .= html_writer::end_tag('ul');
}
$PAGE->requires->yui_module('moodle-mod_ouwiki-pageselector', 'M.mod_ouwiki.pageselector.init', array($pagelist));
// Prepare form parameters.
$wikiinfo = array('importid' => $selectedact->id , 'subwikiid' => $selectedsubwiki->id);
$pageparams['step']++;
$pageparams['courseid'] = $importedfromcourse->id;
$form = new mod_ouwiki_import_pageselect_form(null, array('params' => array_merge($pageparams,
$wikiinfo), 'pages' => $pages));
$form->display();
} else if ($curstep == 3) {
// Confirmation - check OK to proceed and look for merge conflicts, locks etc.
require_sesskey();
$selectedact = required_param('importid', PARAM_INT);
$selectedsubwiki = required_param('subwikiid', PARAM_INT);
$selectedouwiki = '';
ouwiki_get_wikiinfo($selectedact, $selectedsubwiki, $selectedouwiki, $importedfromcourse);
// Build up index, get selected pages - making sure sub pages are included.
$index = ouwiki_get_subwiki_index($selectedsubwiki->id);
ouwiki_build_tree($index);
$pagelist = array();// Our list of page ids to import.
if ($pages = optional_param('pages', null, PARAM_SEQUENCE)) {
// Full page list available e.g. from cancel.
$pagelist = explode(',', $pages);
} else {
// Find pages sent from step 1, get any linked pages also.
foreach ($_POST as $key => $value) {
if (strpos($key, 'page') === 0) {
// Add in page and recursive add of links.
ouwiki_add_linkedpages($pagelist, $index, $value);
}
}
$pagelist = array_unique($pagelist);
}
echo $OUTPUT->heading(get_string('import_confirm', 'ouwiki'), 3);
// Setup confirm form.
$confirmdata = array(
'importfrom' => $selectedact->get_formatted_name(),
'pages' => array(), // Array of page names.
'conflicts' => array(), // Array of conflicting pages and if locked.
'lockedpage' => false, // If any pages were locked (stops import).
'startselected' => false, // Was start page included?
'startlocked' => false, // Check start page not locked.
'wikipages' => array() // Current wiki pages and locked status.
);
foreach ($pagelist as $page) {
$ipagename = $index[$page]->title;
if ($ipagename == '') {
$confirmdata['startselected'] = true;
array_unshift($confirmdata['pages'], get_string('startpage', 'ouwiki'));
} else {
$confirmdata['pages'][] = $ipagename;
}
// Check if this page already exists, and is locked.
if ($pageexists = ouwiki_get_current_page($subwiki, $ipagename, OUWIKI_GETPAGE_ACCEPTNOVERSION)) {
$locked = false;
if ($pageexists->locked || (ouwiki_is_page_locked($pageexists->pageid) &&
!has_capability('mod/ouwiki:overridelock', $context))) {
$locked = true;
if ($ipagename != '') {
$confirmdata['lockedpage'] = true;
}
}
if ($ipagename == '') {
$confirmdata['startlocked'] = $locked;
} else {
$confirmdata['conflicts'][$ipagename] = $locked;
}
}
}
if (!$confirmdata['startselected'] && !empty($pagelist)) {
// We didn't select start page, so need to choose a page to use as base for links.
$confirmdata['wikipages']['-1'] = get_string('import_confirm_linkfrom_newpage', 'ouwiki');
$thisindex = ouwiki_get_subwiki_allpages_index($subwiki);
foreach ($thisindex as $thispage) {
if ($thispage->title == '') {
$thispage->title = get_string('startpage', 'ouwiki');
}
if ($thispage->locked) {
// Prevent selection by adding a note that page is locked.
$confirmdata['wikipages'][$thispage->pageid] = $thispage->title .
'[' . get_string('import_lockedpage', 'ouwiki') . ']';
} else {
$confirmdata['wikipages'][$thispage->pageid] = $thispage->title;
}
}
if (empty($thisindex)) {
// No pages at all - add start page manually with id of 0.
$confirmdata['wikipages'][0] = get_string('startpage', 'ouwiki');
}
}
$wikiinfo = array('importid' => $selectedact->id , 'subwikiid' => $selectedsubwiki->id,
'subwikiid' . $selectedact->id => $selectedsubwiki->id, 'pages' => implode(',', $pagelist));
$pageparams['step']++;
$pageparams['courseid'] = $importedfromcourse->id;
$form = new mod_ouwiki_import_confirm_form(null, array('params' => array_merge($pageparams, $wikiinfo),
'confirmdata' => $confirmdata));
$form->display();
} else if ($curstep == 4) {
// Processing step.
require_sesskey();
$selectedact = required_param('importid', PARAM_INT);
$selectedsubwiki = required_param('subwikiid', PARAM_INT);
$selectedouwiki = '';
ouwiki_get_wikiinfo($selectedact, $selectedsubwiki, $selectedouwiki, $importedfromcourse);
$pagelist = explode(',', required_param('pages', PARAM_SEQUENCE));// Page ids to import.
$conflictmerge = optional_param('conflictmerge', 0, PARAM_INT);// Page conflict setting.
$startpagemerge = optional_param('startpagemerge', 0, PARAM_INT);// SP conflict setting.
$linkfrom = optional_param('linkfrom', null, PARAM_INT);// Add links to (if SP not included).
// Build up index of orig wiki, get selected pages - making sure sub pages are included.
$index = ouwiki_get_subwiki_allpages_index($selectedsubwiki);
$conflicts = array();// All conflicting pages in $pagelist [id] => title.
$warned = false;// Set to true if user warned of problems.
$startpagelocked = false; // Start page locked.
$pagelocked = false; // Page you are trying to import into is locked.
$startpageid = null;
echo $OUTPUT->heading(get_string('import_process', 'ouwiki'), 3);
try {
// Throw moodle_exception when any problems to display continue/cancel form.
$checkpagelist = array();
if ($linkfrom > 0) {
// Selected page to link to, so needs conflict checking.
$checkpagelist[] = $linkfrom;
} else if ($pageexists = ouwiki_get_current_page($subwiki, '', OUWIKI_GETPAGE_CREATE)) {
// Check to see whether start page exists and is locked.
$startpagelocked = $pageexists->locked;
$startpageid = $pageexists->pageid;
$checkpagelist[] = $startpageid;
}
if ($startpagemerge == 1) {
if ($currentpageexists = ouwiki_get_current_page($subwiki, get_string('importedstartpage', 'ouwiki'),
OUWIKI_GETPAGE_ACCEPTNOVERSION)) {
$checkpagelist[] = $currentpageexists->pageid;
}
}
if ($linkfrom == -1) {
if ($currentpageexists = ouwiki_get_current_page($subwiki, get_string('importedpages', 'ouwiki'),
OUWIKI_GETPAGE_ACCEPTNOVERSION)) {
$checkpagelist[] = $currentpageexists->pageid;
}
}
// Obtain lock for any conflicting pages (inc start page).
$checkpagelist = array_merge($pagelist, $checkpagelist);
foreach ($checkpagelist as $page) {
if (!isset($index[$page])) {
$ipagename = $DB->get_field('ouwiki_pages', 'title', array('id' => $page), MUST_EXIST);
} else {
$ipagename = $index[$page]->title;
}
if ($ipagename == '' && $startpagemerge == 1) {
// If start page exists then set imported start page in conflicts array.
if (ouwiki_get_current_page($subwiki, $ipagename, OUWIKI_GETPAGE_ACCEPTNOVERSION)) {
$conflicts[$page] = $ipagename;
}
// Doesn't matter if start page is locked - when adding links check and skip if is.
continue;
}
// Check if this page already exists, and is locked.
if ($currentpageexists = ouwiki_get_current_page($subwiki, $ipagename, OUWIKI_GETPAGE_ACCEPTNOVERSION)) {
$conflicts[$page] = $ipagename;
if (has_capability('mod/ouwiki:overridelock', $context)) {
ouwiki_override_lock($currentpageexists->pageid);
}
list ($lock, $by) = ouwiki_obtain_lock($ouwiki, $currentpageexists->pageid);
if ($currentpageexists->locked) {
$lock = false;// No one can edit.
}
if (!$lock) {
throw new moodle_exception('import_process_locked', 'ouwiki');
}
}
}
$newpagelist = array();// Use to store names of new pages imported.
$updatepagelist = array();
$importedindex = array();
$updatedindex = array();
$pbar = new progress_bar('mod_ouwiki_import', 500, true);
for ($len = count($pagelist), $a = 0; $a < $len; $a++) {
$page = $pagelist[$a];
if (!isset($index[$page])) {
// For some reason our page is not in the list in index - stop.
throw new moodle_exception('Error. Page to import missing.');
}
$pageinfo = $index[$page];
if (in_array($page, array_keys($conflicts))) {
// This page has been identified as one that already exists.
if ($startpagelocked) {
$warned = true;
}
if ($pageinfo->title == '' && $startpagemerge == 1) {
// Create a new 'Imported start page' with imported start page content.
$importedstartpage = get_string('importedstartpage', 'ouwiki');
$newpage = true;
// See whether an 'Imported start page' already exists in the target wiki.
if ($importedstartpageexists = ouwiki_get_current_page($subwiki, $importedstartpage, OUWIKI_GETPAGE_CREATE)) {
// Check if 'Imported start page' (lang string needed) exists or is locked (skip and warn).
if ($importedstartpageexists->locked) {
$warned = true;
$pagelocked = true;
}
// Get imported page content.
$importedcontent = $pageinfo->xhtml;
// Get existing page content.
$currentpagecontent = $importedstartpageexists->xhtml;
// Add imported page content to existing page content.
$importedstartpageexists->xhtml = $currentpagecontent . $importedcontent;
// Save new version of existing page.
$versionid = ouwiki_save_new_version($course, $cm, $ouwiki, $subwiki, $importedstartpageexists->title,
$importedstartpageexists->xhtml, -1, -1, -1, null, null, null,
$pageinfo->versionid);
// Add page names to $newpagelist|$updatepagelist array as appropriate.
if (empty($currentpagecontent)) {
// Link imported start page to start page.
$newpagelist[] = $importedstartpage;
$importedstartpageexists->linkfrom = $startpageid;
$importedindex[$importedstartpageexists->pageid] = $importedstartpageexists;
$linkfrom = $startpageid;
} else {
$updatepagelist[] = $importedstartpage;
}
$updatepagelist[] = get_string('startpage', 'ouwiki');
}
} else {
// Either merge or replace existing page content.
if ($conflictmerge == 0 || ($pageinfo->title == '' && $startpagemerge == 0)) {
// Append import page content to existing content.
if (!$currentpageexists = ouwiki_get_current_page($subwiki, $pageinfo->title,
OUWIKI_GETPAGE_REQUIREVERSION)) {
// We got the page above, but not now?
throw new moodle_exception('Error. Page to import into missing.');
}
// Append existing content with imported content.
// Get imported page content.
$importedcontent = $pageinfo->xhtml;
// Get existing page content.
$currentpagecontent = $currentpageexists->xhtml;
// Merge/Add imported page content to existing page content.
$currentpagecontent = $currentpagecontent . $importedcontent;
// Save new version of existing page.
$versionid = ouwiki_save_new_version($course, $cm, $ouwiki, $subwiki, $currentpageexists->title,
$currentpagecontent, -1, -1, -1, null, null, null, $pageinfo->versionid);
$updatedindex[$pageinfo->pageid] = $pageinfo;
} else {
// Override existing content with imported content.
// Get imported page content.
$importedcontent = $pageinfo->xhtml;
// Replace existing page content with imported page content.
// Save new version of existing page.
$versionid = ouwiki_save_new_version($course, $cm, $ouwiki, $subwiki, $pageinfo->title, $importedcontent,
-1, -1, -1, null, null, null, $pageinfo->versionid);
$updatedindex[$pageinfo->pageid] = $pageinfo;
}
$updatepagelist[] = $pageinfo->title;
}
} else {
// New page.
// Add new page using $pageinfo->xhtml as content.
$newpagelist[] = $pageinfo->title;
$pageversion = ouwiki_get_current_page($subwiki, $pageinfo->title, OUWIKI_GETPAGE_CREATE);
$versionid = ouwiki_save_new_version($course, $cm, $ouwiki, $subwiki, $pageinfo->title, $pageinfo->xhtml,
-1, -1, -1, null, null, null, $pageinfo->versionid);
$importedindex[$pageinfo->pageid] = $pageinfo;
}
// Add any attachments and image files to the page.
// Information needed for files and attachments.
$fs = get_file_storage();
$modcontext = context_module::instance($selectedact->id);
$prevversion = $pageinfo->versionid;
// Add any files.
if ($oldfiles = $fs->get_area_files($modcontext->id, 'mod_ouwiki', 'content', $prevversion)) {
foreach ($oldfiles as $oldfile) {
// Copy this file to the version record.
try {
$fs->create_file_from_storedfile(array(
'contextid' => $context->id,
'filearea' => 'content',
'itemid' => $versionid), $oldfile);
} catch (stored_file_creation_exception $e) {
continue;
}
}
}
// Add any attachments.
if ($oldfiles = $fs->get_area_files($modcontext->id, 'mod_ouwiki', 'attachment', $prevversion)) {
foreach ($oldfiles as $oldfile) {
try {
// Copy this file to the version record.
$fs->create_file_from_storedfile(array(
'contextid' => $context->id,
'filearea' => 'attachment',
'itemid' => $versionid), $oldfile);
} catch (stored_file_creation_exception $e) {
continue;
}
}
}
$pbar->update($a + 1, count($pagelist), get_string('import_process', 'ouwiki'));
// We have a problem with new page - need to check linkfrom value.
if ($linkfrom == -1) {
$importedindex[$pageinfo->pageid] = $pageinfo;
}
}
if (!is_null($linkfrom)) {
$mergexhtml = '';
// Merge imported index and updated index.
$pageindexes = $importedindex + $updatedindex;
// Work out top level of the updated/imported pages ready to add links to these.
foreach ($pageindexes as $page) {
if ( (!isset($page->linksfrom)) || empty($page->linksfrom)) {
$page->linksfrom = array();
$page->linksfrom[0] = 0; // Nullifies for test below.
}
// Create the links xhtml.
if (!in_array($page->linksfrom[0], $pagelist)) {
// Assume that we have a top level page.
$page->linksfrom = array();
$mergexhtml .= '<p>[[' .$page->title. ']]</p>';
}
}
if ($linkfrom == 0) {
// Add links to non-existing start page.
// Create start page with links.
$updatepagelist[] = get_string('startpage', 'ouwiki');
$pageversion = ouwiki_get_current_page($subwiki, null, OUWIKI_GETPAGE_CREATE);
// Add links into selected page content.
$versionid = ouwiki_save_new_version($course, $cm, $ouwiki, $subwiki, '', $mergexhtml);
} else if ($linkfrom == -1) {
// Check start page not locked (skip and warn) and add link to 'Imported pages'.
// Check to see whether start page is locked.
if ($startpagelocked) {
$warned = true;
}
// Create a new 'Imported pages' page with the links on.
$importedpages = get_string('importedpages', 'ouwiki');
// Create/update(merge) 'Imported pages'.
$linkfrompage = ouwiki_get_current_page($subwiki, $importedpages, OUWIKI_GETPAGE_CREATE);
$linkfrompageid = $linkfrompage->pageid;
$newpage = false;
if (empty($linkfrompage->xhtml)) {
// New page.
$newpage = true;
} else if ($linkfrompage->locked) {
// Check for 'Imported pages' not locked(skip and warn).
$warned = true;
$pagelocked = true;
}
// Merge links xhtml into import into page xhtml content.
$linkfrompage->xhtml = $linkfrompage->xhtml . $mergexhtml;
$linkfrompage->linkfrom = $pageinfo->pageid;
// Place in new page creation.
$versionid = ouwiki_save_new_version($course, $cm, $ouwiki, $subwiki, $linkfrompage->title, $linkfrompage->xhtml);
// Add page names to $newpagelist|$updatepagelist array as appropriate.
if ($newpage) {
$newpagelist[] = $importedpages;
// Update 'Start page'.
$title = '';
$xhtmlcontent = '';
if ($pageexists) {
$xhtmlcontent = $pageexists->xhtml . '<p>[[' .$linkfrompage->title. ']]</p>';
$title = $pageexists->title;
} else {
$xhtmlcontent = $xhtmlcontent . '<p>[[' .$linkfrompage->title. ']]</p>';
}
ouwiki_save_new_version($course, $cm, $ouwiki, $subwiki, $title, $xhtmlcontent);
} else {
$updatepagelist[] = $importedpages;
}
// Set linkfrom to 'Imported pages'.
$linkfrom = $importedpages;
$updatepagelist[] = get_string('startpage', 'ouwiki');
} else {
// Add links into selected page.
if (!$pageinfo = $DB->get_record('ouwiki_pages', array('id' => $linkfrom))) {
throw new moodle_exception('Error. Page to import into missing.');
}
// Store page name so we can go there.
$linkfrom = $pageinfo->title;
// Add links into selected page content.
$linkfrompage = ouwiki_get_current_page($subwiki, $pageinfo->title, OUWIKI_GETPAGE_CREATE);
$linkfrompageid = $linkfrompage->pageid;
// Merge links xhtml into import into page xhtml content.
$linkfrompage->xhtml = $linkfrompage->xhtml . $mergexhtml;
$versionid = ouwiki_save_new_version($course, $cm, $ouwiki, $subwiki, $linkfrompage->title, $linkfrompage->xhtml);
if ($pageinfo->title == '') {
// Start page.
$updatepagelist[] = get_string('startpage', 'ouwiki');
} else {
$updatepagelist[] = $pageinfo->title;
}
}
}
// Provide summary output.
echo $OUTPUT->heading(get_string('import_process_summary', 'ouwiki'), 3);
echo html_writer::tag('p', $warned ? get_string('import_process_summary_warn', 'ouwiki') :
get_string('import_process_summary_success', 'ouwiki'));
if ($startpagelocked) {
// Start page locked.
echo html_writer::div(get_string('import_process_startpage_locked', 'ouwiki'));
}
if ($pagelocked) {
// Page imported into locked.
echo html_writer::div(get_string('import_process_locked', 'ouwiki'));
}
// Show pages imported.
echo html_writer::start_div();
echo get_string('import_process_summary_imported', 'ouwiki');
echo html_writer::alist(array_unique($newpagelist));
echo html_writer::end_div();
if (!empty($updatepagelist)) {
// Show pages updated.
echo html_writer::start_div();
echo get_string('import_process_summary_updated', 'ouwiki');
echo html_writer::alist(array_unique($updatepagelist));
echo html_writer::end_div();
}
// Continue button to page where links were added.
if (is_null($linkfrom) || (is_numeric($linkfrom) && ($linkfrom < 1)) || $linkfrom == '') {
unset($pageparams['page']);// Set to start page.
} else {
$pageparams['page'] = $linkfrom;
}
unset($pageparams['step']);
echo $OUTPUT->continue_button(new moodle_url('/mod/ouwiki/view.php', $pageparams));
} catch (moodle_exception $e) {
// Display continue/cancel form.
$wikiinfo = array('importid' => $selectedact->id , 'subwikiid' => $selectedsubwiki->id,
'pages' => implode(',', $pagelist), 'conflictmerge' => $conflictmerge,
'startpagemerge' => $startpagemerge, 'linkfrom' => $linkfrom,
'sesskey' => sesskey());
$continue = new moodle_url('/mod/ouwiki/import.php', array_merge($pageparams, $wikiinfo));
$pageparams['step']++;
$pageparams['cancel'] = get_string('cancel');
$cancel = new moodle_url('/mod/ouwiki/import.php', array_merge($pageparams, $wikiinfo));
echo $OUTPUT->confirm($e->getMessage(), $cancel, new moodle_url('/mod/ouwiki/view.php', $pageparams));
ouwiki_print_footer($course, $cm, $subwiki, $pagename);
exit;
}
}
// Footer.
ouwiki_print_footer($course, $cm, $subwiki, $pagename);
/**
* Recursive function to put all pages from page id value into pagelist
* @param array $pagelist
* @param array $index subwiki index tree
* @param int $value page id
*/
function ouwiki_add_linkedpages(&$pagelist, &$index, $value) {
if (!in_array($value, $pagelist) && in_array($value, array_keys($index))) {
$pagelist[] = $value;
$newpages = array_unique($index[$value]->linksto);
foreach ($newpages as $newvalue) {
ouwiki_add_linkedpages($pagelist, $index, $newvalue);
}
}
}