moodle/backup/backup_execute.html

<?PHP //$Id$
    //This page prints the backup todo list to see everything

    //Check login   
    require_login();

    //Check admin
    if (!isadmin()) {
        error("You need to be an admin user to use this page.", "$CFG->wwwroot/login/index.php");
    }

    //Check site
    if (!$site = get_site()) {
        error("Site not found!");
    }

   //Checks for the required files/functions to backup every mod
    //And check if there is data about it
    $count = 0;
    if ($allmods = get_records("modules") ) {
        foreach ($allmods as $mod) {
            $modname = $mod->name;
            $modfile = "$mods_home/$modname/backuplib.php";
            $modbackup = $modname."_backup_mods";
            $modcheckbackup = $modname."_check_backup_mods";
            if (file_exists($modfile)) {
               include_once($modfile);
               if (function_exists($modbackup) and function_exists($modcheckbackup)) {
                   $var = "exists_".$modname;
                   $$var = true;
                   $count++;
               }
            }
            //Check data
            //Check module info
            $var = "backup_".$modname;
            if (!isset($$var)) {
                //Every undefined backup_XXXX isn't exported
                $$var = 0;
            }
            //Now stores all the mods preferences into an array into preferences
            $preferences->mods[$modname]->backup = $$var;

            //Check include user info
            $var = "backup_user_info_".$modname;
            if (!isset($$var)) {
                $$var = 1;
            }
            //Now stores all the mods preferences into an array into preferences
            $preferences->mods[$modname]->userinfo = $$var; 
            //And the name of the mod
            $preferences->mods[$modname]->name = $modname;
        }
    }

    //Check other parameters
    if (!isset($backup_users)) {
        $backup_users = 1;
    }
    $preferences->backup_users = $backup_users;
   
    if (!isset($backup_logs)) {
        $backup_logs = 1;
    }
    $preferences->backup_logs = $backup_logs;

    if (!isset($backup_user_files)) {
        $backup_user_files = 1;
   }
    $preferences->backup_user_files = $backup_user_files;

    if (!isset($backup_course_files)) {
        $backup_course_files = 2;
    }
    $preferences->backup_course_files = $backup_course_files;

    if (!isset($id)) {
        error ("Course not specified");
    }
    $preferences->backup_course = $id;

    if (!isset($backup_name)) {
        error ("Backup name not specified");
    }
    $preferences->backup_name = $backup_name;

    if (!isset($backup_unique_code)) {
        error ("Backup unique code not specified");
    }
    $preferences->backup_unique_code = $backup_unique_code;

    //Another Info
    $preferences->moodle_version = $version;
    $preferences->moodle_release = $release;
    $preferences->backup_version = $backup_version;
    $preferences->backup_release = $backup_release;

    if ($count == 0) {
        notice("No backupable modules are installed!");
    }

    //Start the main table
    echo "<table cellpadding=5>";

    //Now print the Backup Name tr
    echo "<tr>";
    echo "<td align=\"right\"><P><B>";
    echo get_string("name").":";
    echo "</B></td><td>";
    echo $backup_name;
    echo "</td></tr>";
    
    //Start the main tr, where all the backup progress is done
    echo "<tr>";
    echo "<td colspan=\"2\">";
    
    //Start the main ul
    echo "<ul>";

    //Check for temp and backup and backup_unique_code directory
    //Create them as needed
    echo "<li>Creating temporary structures";
    $status = check_and_create_backup_dir($backup_unique_code);
    //Empty dir
    if ($status) {
        $status = clear_backup_dir($backup_unique_code);
    }

    //Delete old_entries from backup tables
    echo "<li>Deteting old data";
    $status = backup_delete_old_data();
    if (!$status) {
        error ("An error has ocurred");
    }

    //Create the moodle.xml file
    if ($status) {
        echo "<li>Creating xml file";
        //Begin a new list to xml contents
        echo "<ul>";
        echo "<li>Writing header";
        //Obtain the xml file (create and open) and print prolog information
        $backup_file = backup_open_xml($backup_unique_code);
        echo "<li>Writing general info";
        //Prints general info about backup to file
        if ($backup_file) {
            $status = backup_general_info($backup_file,$preferences);
        }
        echo "<li>Writing course data";

        //Start new ul (for course)
        echo "<ul>";

        echo "<li>Course info";
        //Prints course start (tag and general info)
        if ($status) {
            $status = backup_course_start($backup_file,$preferences);
        }
        echo "<li>Sections";
        //Section info
        if ($status) {
            $status = backup_course_sections($backup_file,$preferences);
        }

        //End course contents (close ul)
        echo "</ul>";

        echo "<li>Writing users info";
        //User info
        if ($status) {
            $status = backup_user_info($backup_file,$preferences);
        }
        
        //Print logs if selected
        if ($status) {
            if ($preferences->backup_logs) {  
                echo "<li>Writing logs info";
                $status = backup_log_info($backup_file,$preferences);
            }
        }

        //Module info, this unique function makes all the work!!
        //db export and module fileis copy
        if ($status) {
            $mods_to_backup = false;
            //Check if we have any mod to backup
            foreach ($preferences->mods as $module) {
                if ($module->backup) { 
                    $mods_to_backup = true;
                }    
            }
            //If we have to backup some module
            if ($mods_to_backup) {
                echo "<li>Writing modules info";
                //Start modules tag
                $status = backup_modules_start ($backup_file,$preferences);
                //Open ul for module list
                echo "<ul>";
                //Iterate over modules and call backupa
                foreach ($preferences->mods as $module) {
                    if ($module->backup and $status) {
                        echo "<li>".$module->name;
                        $status = backup_module($backup_file,$preferences,$module->name);
                    }
                }
                //Close ul for module list
                echo "</ul>";
                //Close modules tag
                $status = backup_modules_end ($backup_file,$preferences);
            }
        }

        //Prints course end 
        if ($status) {
            $status = backup_course_end($backup_file,$preferences);
        }
        //Close the xml file and xml data
        if ($backup_file) {
            backup_close_xml($backup_file);
        }

        //End xml contents (close ul)
        echo "</ul>";
    }
    
    //Now, if selected, copy user files
    if ($status) {
        if ($preferences->backup_user_files) {
            echo "<li>Copying user files";
            $status = backup_copy_user_files ($preferences);
        }
    }

    //Now, if selected, copy course files
    if ($status) {
        if ($preferences->backup_course_files) {
            echo "<li>Copying course files";
            $status = backup_copy_course_files ($preferences);
        }
    }

    //Now, zip all the backup directory contents
    if ($status) {
        echo "<li>Zipping backup";
        $status = backup_zip ($preferences,$moodle_home);
    }

    //Now, copy the zip file to course directory
    if ($status) {
        echo "<li>Copying zip file";
        $status = copy_zip_to_course_dir ($preferences);
    }

    //Now, clean temporary data (db and filesystem)
    if ($status) {
        echo "<li>Cleaning up temp data";
        $status = clean_temp_data ($preferences); 
    }

    if (!$status) {
        error ("An error has ocurred");
    }

    //Ends th main ul
    echo "</ul>";

    //End the main tr, where all the backup is done
    echo "</td></tr>";

    //End the main table
    echo "</table>";

    //Print final message
    print_simple_box(get_string("backupfinished"),"CENTER");
    print_continue($moodle_home."/files/index.php?id=".$preferences->backup_course."&wdir=/".get_string("backupdir"));    

?>