PHP upgrade_block_savepoint函数代码示例

/**
 * Upgrade code for the recent activity block.
 *
 * @global moodle_database $DB
 * @param int $oldversion
 * @param object $block
 */
function xmldb_block_recent_activity_upgrade($oldversion, $block)
{
    global $CFG, $DB;
    $dbman = $DB->get_manager();
    // loads ddl manager and xmldb classes
    if ($oldversion < 2014012000) {
        // Define table block_recent_activity to be created.
        $table = new xmldb_table('block_recent_activity');
        // Adding fields to table block_recent_activity.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('courseid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('cmid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
        $table->add_field('action', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, null);
        $table->add_field('modname', XMLDB_TYPE_CHAR, '20', null, null, null, null);
        // Adding keys to table block_recent_activity.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Adding indexes to table block_recent_activity.
        $table->add_index('coursetime', XMLDB_INDEX_NOTUNIQUE, array('courseid', 'timecreated'));
        // Conditionally launch create table for block_recent_activity.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
            // Insert dummy log record for each existing course to notify that their logs need to be migrated.
            $DB->execute('INSERT INTO {block_recent_activity} (timecreated, userid, courseid, cmid, action) ' . 'SELECT ?, 0, id, 0, 3 FROM {course}', array(time()));
        }
        // Recent_activity savepoint reached.
        upgrade_block_savepoint(true, 2014012000, 'recent_activity');
    }
    // Moodle v2.7.0 release upgrade line.
    // Put any upgrade step following this.
    return true;
}

/**
 * Upgrade the block_rss_client database.
 *
 * @param int $oldversion The version number of the plugin that was installed.
 * @return boolean
 */
function xmldb_block_rss_client_upgrade($oldversion)
{
    global $DB;
    $dbman = $DB->get_manager();
    if ($oldversion < 2015071700) {
        // Support for skipping RSS feeds for a while when they fail.
        $table = new xmldb_table('block_rss_client');
        // How many seconds we are currently ignoring this RSS feed for (due to an error).
        $field = new xmldb_field('skiptime', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'url');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // When to next update this RSS feed.
        $field = new xmldb_field('skipuntil', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'skiptime');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_block_savepoint(true, 2015071700, 'rss_client');
    }
    // Moodle v3.0.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v3.1.0 release upgrade line.
    // Put any upgrade step following this.
    return true;
}

function xmldb_block_rcommon_upgrade($oldversion)
{
    global $DB, $OUTPUT;
    if ($oldversion < 2014070300) {
        $local_version = $DB->get_field('config_plugins', 'value', array('name' => 'version', 'plugin' => 'local_rcommon'));
        if (!$local_version) {
            //Local not installed
            try {
                $version = $DB->get_field('block', 'version', array('name' => 'rcommon'));
            } catch (Exception $e) {
                $version = false;
            }
            if (!$version) {
                $version = $DB->get_field('config_plugins', 'value', array('name' => 'version', 'plugin' => 'block_rcommon'));
            }
            if ($version) {
                $new_version = new StdClass();
                $new_version->name = 'version';
                $new_version->plugin = 'local_rcommon';
                $new_version->value = $version;
                $DB->insert_record('config_plugins', $new_version);
            }
        }
        // Savepoint reached.
        upgrade_block_savepoint(true, 2014070300, 'rcommon');
    }
    echo $OUTPUT->notification('Now you can uninstall block/rcommon by erasing the directory', 'notifysuccess');
    return true;
}

/**
 * This function is run when the plugin have to be updated
 * @global stdClass $CFG
 * @global moodle_database $DB
 * @param int $oldversion The older version of the plugin installed on the moodle
 * @return boolean True if the update passed successfully
 */
function xmldb_block_tts_upgrade($oldversion)
{
    global $CFG, $DB;
    $dbman = $DB->get_manager();
    if ($oldversion < 2012101800) {
        // Define table block_tts to be renamed to NEWNAMEGOESHERE
        $table = new xmldb_table('tts');
        $table2 = new xmldb_table('tts_lexicon');
        // Launch rename table for block_tts
        $dbman->rename_table($table, 'block_tts');
        $dbman->rename_table($table2, 'block_tts_lexicon');
        // tts savepoint reached
        upgrade_block_savepoint(true, 2012101800, 'tts');
    }
    if ($oldversion < 2012102900) {
        // Correction on the wrong table name
        upgrade_block_savepoint(true, 2012102900, 'tts');
    }
    if ($oldversion < 2012110500) {
        // Fixed language string issue
        upgrade_block_savepoint(true, 2012110500, 'tts');
    }
    if ($oldversion < 2012121000) {
        //Update logo for Moodle 2.4
        upgrade_block_savepoint(true, 2012121000, 'tts');
    }
    if ($oldversion < 2012121400) {
        //Update capabilities for Moodle 2.4
        upgrade_block_savepoint(true, 2012121400, 'tts');
    }
    return true;
}

/**
 *
 * @since 2.0
 * @package blocks
 * @copyright 2011 Dustin Durand
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
function xmldb_block_roomscheduler_upgrade($oldversion)
{
    global $DB;
    $dbman = $DB->get_manager();
    if ($oldversion < 2011150301) {
        $timenow = time();
        $sysctx = get_context_instance(CONTEXT_SYSTEM);
        /// Fully setup the Elluminate Moderator role.
        if (!($mrole = $DB->get_record('role', array('shortname' => 'roomschedulermanager')))) {
            if ($rid = create_role(get_string('roomschedulermanager', 'block_roomscheduler'), 'roomschedulemanager', get_string('roomschedulermanagerdescription', 'block_roomscheduler'))) {
                $mrole = $DB->get_record('role', array('id' => $rid));
                assign_capability('block/roomscheduler:manage', CAP_ALLOW, $mrole->id, $sysctx->id);
                set_role_contextlevels($mrole->id, array(CONTEXT_SYSTEM));
            } else {
                $mrole = $DB->get_record('role', array('shortname' => 'roomschedulermanager'));
                set_role_contextlevels($mrole->id, array(CONTEXT_SYSTEM));
            }
        }
        upgrade_block_savepoint(true, 2011150301, 'roomscheduler');
    }
    if ($oldversion < 2011140315) {
        // Define field reservable to be added to roomscheduler_rooms
        $table = new xmldb_table('roomscheduler_rooms');
        $field = new xmldb_field('reservable', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '1', 'active');
        // Conditionally launch add field reservable
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_block_savepoint(true, 2011140315, 'roomscheduler');
    }
    return true;
}

/**
 *
 * @param int $oldversion
 * @param object $block
 */
function xmldb_block_iomad_approve_access_upgrade($oldversion)
{
    global $CFG, $DB;
    $result = true;
    $dbman = $DB->get_manager();
    if ($oldversion < 2013061100) {
        // Define field companyid to be added to block_iomad_approve_access.
        $table = new xmldb_table('block_iomad_approve_access');
        $field = new xmldb_field('companyid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null, 'userid');
        // Conditionally launch add field companyid.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Iomad_approve_access savepoint reached.
        upgrade_block_savepoint(true, 2013061100, 'iomad_approve_access');
    }
    if ($oldversion < 2013071000) {
        // Define field activityid to be added to block_iomad_approve_access.
        $table = new xmldb_table('block_iomad_approve_access');
        $field = new xmldb_field('activityid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'courseid');
        // Conditionally launch add field activityid.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Iomad_approve_access savepoint reached.
        upgrade_block_savepoint(true, 2013071000, 'iomad_approve_access');
    }
    return true;
}

/**
 *
 * @param int $oldversion
 * @param object $block
 */
function xmldb_block_community_upgrade($oldversion)
{
    global $CFG, $DB;
    $dbman = $DB->get_manager();
    if ($oldversion < 2010042701) {
        /// Define table block_community to be created
        $table = new xmldb_table('block_community');
        /// Adding fields to table block_community
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
        $table->add_field('coursename', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('coursedescription', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
        $table->add_field('courseurl', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        $table->add_field('imageurl', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
        /// Adding keys to table block_community
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        /// Conditionally launch create table for block_community
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        /// community savepoint reached
        upgrade_block_savepoint(true, 2010042701, 'community');
    }
    return true;
}

/**
 * Upgrade code for the section links block.
 *
 * @global moodle_database $DB
 * @param int $oldversion
 * @param object $block
 */
function xmldb_block_section_links_upgrade($oldversion, $block)
{
    global $DB;
    // Moodle v2.3.0 release upgrade line
    // Put any upgrade step following this
    // Moodle v2.4.0 release upgrade line
    // Put any upgrade step following this
    if ($oldversion < 2013012200.0) {
        // The section links block used to use its own crazy plugin name.
        // Here we are converting it to the proper component name.
        $oldplugin = 'blocks/section_links';
        $newplugin = 'block_section_links';
        // Use the proper API here... thats what we should be doing as it ensures any caches etc are cleared
        // along the way!
        // It may be quicker to just write an SQL statement but that would be reckless.
        $config = get_config($oldplugin);
        if (!empty($config)) {
            foreach ($config as $name => $value) {
                set_config($name, $value, $newplugin);
                unset_config($name, $oldplugin);
            }
        }
        // Main savepoint reached.
        upgrade_block_savepoint(true, 2013012200.0, 'section_links');
    }
    // Moodle v2.5.0 release upgrade line
    // Put any upgrade step following this
    // Moodle v2.6.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v2.7.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v2.8.0 release upgrade line.
    // Put any upgrade step following this.
    return true;
}

/**
 *
 * @param int $oldversion
 * @param object $block
 */
function xmldb_block_html_upgrade($oldversion)
{
    global $CFG, $DB;
    $dbman = $DB->get_manager();
    if ($oldversion < 2010071900) {
        $params = array();
        $sql = "SELECT * FROM {block_instances} b WHERE b.blockname = :blockname";
        $params['blockname'] = 'html';
        $rs = $DB->get_recordset_sql($sql, $params);
        foreach ($rs as $record) {
            $config = unserialize(base64_decode($record->configdata));
            if (!empty($config) && is_object($config)) {
                if (!empty($config->text) && is_array($config->text)) {
                    // fix bad data
                    $data = clone $config;
                    $config->text = $data->text['text'];
                    $config->format = $data->text['format'];
                    $record->configdata = base64_encode(serialize($config));
                    $DB->update_record('block_instances', $record);
                } else {
                    if (empty($config->format)) {
                        // add format parameter to 1.9
                        $config->format = FORMAT_HTML;
                        $record->configdata = base64_encode(serialize($config));
                        $DB->update_record('block_instances', $record);
                    }
                }
            }
        }
        $rs->close();
        /// html block savepoint reached
        upgrade_block_savepoint(true, 2010071900, 'html');
    }
    return true;
}

/**
 * Handles upgrading instances of this block.
 *
 * @param int $oldversion
 * @param object $block
 */
function xmldb_block_completionstatus_upgrade($oldversion, $block)
{
    global $DB;
    // Moodle v2.4.0 release upgrade line
    // Put any upgrade step following this.
    if ($oldversion < 2012112901) {
        // Get the instances of this block.
        if ($blocks = $DB->get_records('block_instances', array('blockname' => 'completionstatus', 'pagetypepattern' => 'my-index'))) {
            // Loop through and remove them from the My Moodle page.
            foreach ($blocks as $block) {
                blocks_delete_instance($block);
            }
        }
        // Savepoint reached.
        upgrade_block_savepoint(true, 2012112901, 'completionstatus');
    }
    // Moodle v2.5.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v2.6.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v2.7.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v2.8.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v2.9.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v3.0.0 release upgrade line.
    // Put any upgrade step following this.
    return true;
}

/**
 * Upgrade the calendar_month block
 * @param int $oldversion
 * @param object $block
 */
function xmldb_block_calendar_month_upgrade($oldversion, $block)
{
    global $DB;
    if ($oldversion < 2014062600) {
        // Add this block the default blocks on /my.
        $blockname = 'calendar_month';
        // Do not try to add the block if we cannot find the default my_pages entry.
        // Private => 1 refers to MY_PAGE_PRIVATE.
        if ($systempage = $DB->get_record('my_pages', array('userid' => null, 'private' => 1))) {
            $page = new moodle_page();
            $page->set_context(context_system::instance());
            // Check to see if this block is already on the default /my page.
            $criteria = array('blockname' => $blockname, 'parentcontextid' => $page->context->id, 'pagetypepattern' => 'my-index', 'subpagepattern' => $systempage->id);
            if (!$DB->record_exists('block_instances', $criteria)) {
                // Add the block to the default /my.
                $page->blocks->add_region(BLOCK_POS_RIGHT);
                $page->blocks->add_block($blockname, BLOCK_POS_RIGHT, 0, false, 'my-index', $systempage->id);
            }
        }
        upgrade_block_savepoint(true, 2014062600, $blockname);
    }
    // Moodle v2.8.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v2.9.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v3.0.0 release upgrade line.
    // Put any upgrade step following this.
    // Moodle v3.1.0 release upgrade line.
    // Put any upgrade step following this.
    return true;
}

function xmldb_block_search_upgrade($oldversion)
{
    global $CFG, $DB;
    require 'upgradelib.php';
    $result = TRUE;
    $dbman = $DB->get_manager();
    if ($oldversion < 2010101800) {
        // See MDL-24374
        // Changing type of field docdate on table block_search_documents to int
        // Changing type of field updated on table block_search_documents to int
        $table = new xmldb_table('block_search_documents');
        $field_docdate_new = new xmldb_field('docdate_new', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'docdate');
        $field_updated_new = new xmldb_field('updated_new', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'updated');
        $field_docdate_old = new xmldb_field('docdate');
        $field_updated_old = new xmldb_field('updated');
        // Conditionally launch add temporary fields
        if (!$dbman->field_exists($table, $field_docdate_new)) {
            $dbman->add_field($table, $field_docdate_new);
        }
        if (!$dbman->field_exists($table, $field_updated_new)) {
            $dbman->add_field($table, $field_updated_new);
        }
        $sql = "SELECT id, docdate, updated FROM {block_search_documents}";
        $search_documents = $DB->get_records_sql($sql);
        if ($search_documents) {
            foreach ($search_documents as $sd) {
                $sd->docdate_new = convert_datetime_upgrade($sd->docdate);
                $sd->updated_new = convert_datetime_upgrade($sd->updated);
                $DB->update_record('block_search_documents', $sd);
            }
        }
        // Conditionally launch drop the old fields
        if ($dbman->field_exists($table, $field_docdate_old)) {
            $dbman->drop_field($table, $field_docdate_old);
        }
        if ($dbman->field_exists($table, $field_updated_old)) {
            $dbman->drop_field($table, $field_updated_old);
        }
        //rename the new fields to the original field names.
        $dbman->rename_field($table, $field_docdate_new, 'docdate');
        $dbman->rename_field($table, $field_updated_new, 'updated');
        // search savepoint reached
        upgrade_block_savepoint(true, 2010101800, 'search');
    }
    if ($oldversion < 2010110900) {
        unset_config('block_search_text');
        unset_config('block_search_button');
        upgrade_block_savepoint(true, 2010110900, 'search');
    }
    if ($oldversion < 2010111100) {
        // set block to hidden if global search is disabled.
        if ($CFG->enableglobalsearch != 1) {
            $DB->set_field('block', 'visible', 0, array('name' => 'search'));
            // Hide block
        }
        upgrade_block_savepoint(true, 2010111100, 'search');
    }
    return $result;
}

function xmldb_block_oppia_mobile_export_upgrade($oldversion)
{
    global $CFG, $DB, $OUTPUT;
    $dbman = $DB->get_manager();
    if ($oldversion < 2013111402) {
        // block savepoint reached
        upgrade_block_savepoint(true, 2013111402, 'oppia_mobile_export');
    }
    if ($oldversion < 2014032100) {
        // Define table block_oppia_mobile_server to be created.
        $table = new xmldb_table('block_oppia_mobile_server');
        // Adding fields to table block_oppia_mobile_server.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('servername', XMLDB_TYPE_CHAR, '50', null, null, null, '');
        $table->add_field('url', XMLDB_TYPE_CHAR, '50', null, null, null, '');
        $table->add_field('moodleuserid', XMLDB_TYPE_INTEGER, '10', null, null, null, '0');
        $table->add_field('username', XMLDB_TYPE_CHAR, '50', null, null, null, '');
        $table->add_field('apikey', XMLDB_TYPE_CHAR, '50', null, null, null, '');
        $table->add_field('defaultserver', XMLDB_TYPE_INTEGER, '10', null, null, null, '0');
        // Adding keys to table block_oppia_mobile_server.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Conditionally launch create table for block_oppia_mobile_server.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Blocks savepoint reached.
        upgrade_plugin_savepoint(true, 2014032100, 'error', 'blocks');
    }
    if ($oldversion < 2015021802) {
        // Changing type of field value on table block_oppia_mobile_config to text.
        $table = new xmldb_table('block_oppia_mobile_config');
        $field = new xmldb_field('value', XMLDB_TYPE_TEXT, null, null, null, null, null, 'name');
        // Launch change of type for field value.
        $dbman->change_field_type($table, $field);
        // Blocks savepoint reached.
        upgrade_plugin_savepoint(true, 2015021802, 'error', 'blocks');
    }
    if ($oldversion < 2016021500) {
        // Add the field serverid to table block_oppia_mobile_config
        $table = new xmldb_table('block_oppia_mobile_config');
        if (!$dbman->field_exists($table, 'serverid')) {
            $field = new xmldb_field('serverid', XMLDB_TYPE_TEXT, null, null, null, null, null, 'value');
            $dbman->add_field($table, $field);
        }
        // Blocks savepoint reached.
        upgrade_plugin_savepoint(true, 2016021500, 'error', 'blocks');
    }
    if ($oldversion < 2016041301) {
        //Update the size for field value to support longer tag values
        $table = new xmldb_table('block_oppia_mobile_config');
        $field = new xmldb_field('value', XMLDB_TYPE_TEXT, null, null, null, null, null, 'name');
        // Launch change of type for field value.
        $dbman->change_field_type($table, $field);
        // Blocks savepoint reached.
        upgrade_plugin_savepoint(true, 2016041301, 'error', 'blocks');
    }
    return true;
}

/**
 * This is the upgrade script for the project.
 *
 * @package    block_nurs_navigation
 * @category   block
 * @copyright  2012 Craig Jamieson
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
function xmldb_block_nurs_navigation_upgrade($oldversion = 0)
{
    global $DB;
    $dbman = $DB->get_manager();
    $result = true;
    // June 17, 2013 version changed the way that contexts are stored in the files table.
    if ($oldversion < 2013061706) {
        $query = "SELECT * FROM {nurs_navigation} WHERE courseid <> 1";
        $records = $DB->get_records_sql($query);
        $fs = get_file_storage();
        foreach ($records as $record) {
            $coursecontext = context_course::instance($record->courseid);
            // Explicit check here since sometimes there are old nurs_navigation records that point to deleted courses.
            if (isset($coursecontext->id)) {
                $params = array($coursecontext->id, 'nurs_navigation');
                $query = "SELECT * FROM {block_instances} WHERE parentcontextid = ? AND blockname = ?";
                $block = $DB->get_record_sql($query, $params, IGNORE_MULTIPLE);
                $blockcontext = context_block::instance($block->id);
                // This can return multiple records because of how the multiple file terminator works.
                $filerecords = $DB->get_records('files', array('contextid' => $coursecontext->id, 'itemid' => $record->fileid));
                foreach ($filerecords as $filerecord) {
                    $filerecord->contextid = $blockcontext->id;
                    // Path hash must be updated as well with a context change.
                    $filerecord->pathnamehash = $fs->get_pathname_hash($filerecord->contextid, BNN_BLOCK_SAVE_COMPONENT, BNN_BLOCK_SAVE_AREA, $filerecord->itemid, $filerecord->filepath, $filerecord->filename);
                    $DB->update_record('files', $filerecord);
                }
            }
        }
    }
    // Create the second table.
    if ($oldversion < 2012110200) {
        // Define table nurs_navigation_settings to be created.
        $table = new xmldb_table('nurs_navigation_settings');
        // Adding fields to table nurs_navigation_settings.
        $table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
        $table->add_field('courseid', XMLDB_TYPE_INTEGER, '20', null, XMLDB_NOTNULL, null, null);
        $table->add_field('sectionname', XMLDB_TYPE_TEXT, 'big', null, null, null, null, null);
        $table->add_field('disableicon', XMLDB_TYPE_INTEGER, '20', null, XMLDB_NOTNULL, null, null);
        $table->add_field('customlabel', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
        // Adding keys to table nurs_navigation_settings.
        $table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
        // Conditionally launch create table for nurs_navigation_settings.
        if (!$dbman->table_exists($table)) {
            $dbman->create_table($table);
        }
        // Define field disableicon to be dropped from nurs_navigation.
        $table = new xmldb_table('nurs_navigation');
        $field = new xmldb_field('disableicon');
        // Conditionally launch drop field courseid.
        if ($dbman->field_exists($table, $field)) {
            $dbman->drop_field($table, $field);
        }
        // Update savepoint.
        upgrade_block_savepoint(true, 2012110200, 'nurs_navigation');
    }
    return $result;
}

function xmldb_block_panopto_upgrade($oldversion = 0)
{
    global $CFG, $DB;
    $dbman = $DB->get_manager();
    if ($oldversion < 2014121502) {
        // Add db fields for servername and application key per course.
        if (isset($CFG->block_panopto_server_name)) {
            $oldservername = $CFG->block_panopto_server_name;
        }
        if (isset($CFG->block_panopto_application_key)) {
            $oldappkey = $CFG->block_panopto_application_key;
        }
        // Define field panopto_server to be added to block_panopto_foldermap.
        $table = new xmldb_table('block_panopto_foldermap');
        $field = new xmldb_field('panopto_server', XMLDB_TYPE_CHAR, '64', null, XMLDB_NOTNULL, null, null, 'panopto_id');
        // Conditionally launch add field panopto_server.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
            if (isset($oldservername)) {
                $DB->set_field('block_panopto_foldermap', 'panopto_server', $oldservername, null);
            }
        }
        // Define field panopto_app_key to be added to block_panopto_foldermap.
        $table = new xmldb_table('block_panopto_foldermap');
        $field = new xmldb_field('panopto_app_key', XMLDB_TYPE_CHAR, '64', null, XMLDB_NOTNULL, null, null, 'panopto_server');
        // Conditionally launch add field panopto_app_key.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
            if (isset($oldappkey)) {
                $DB->set_field('block_panopto_foldermap', 'panopto_app_key', $oldappkey, null);
            }
        }
        // Panopto savepoint reached.
        upgrade_block_savepoint(true, 2014121502, 'panopto');
    }
    if ($oldversion < 2015012901) {
        // Define field publisher_mapping to be added to block_panopto_foldermap.
        $table = new xmldb_table('block_panopto_foldermap');
        $field = new xmldb_field('publisher_mapping', XMLDB_TYPE_CHAR, '20', null, null, null, '1', 'panopto_app_key');
        // Conditionally launch add field publisher_mapping.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Define field creator_mapping to be added to block_panopto_foldermap.
        $table = new xmldb_table('block_panopto_foldermap');
        $field = new xmldb_field('creator_mapping', XMLDB_TYPE_CHAR, '20', null, null, null, '3,4', 'publisher_mapping');
        // Conditionally launch add field creator_mapping.
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // Panopto savepoint reached.
        upgrade_block_savepoint(true, 2015012901, 'panopto');
    }
    return true;
}