backup/restore_check.html

   1 <?PHP //$Id$
   2     //This page receive all the restore_form data. Then, if existing course
   3     //has been selected, shows a list of courses to select one.
   4     //It cheks that the parammeter from restore_form are coherent.
   5     //It puts all the restore info in the session.
   6     //Finally, it calls restore_execute to do the hard work
   7
   8     //Get objects from session
   9     if ($SESSION) {
  10         $info = $SESSION->info;
  11         $course_header = $SESSION->course_header;
  12         if (isset($SESSION->restore)) {
  13             $restore = $SESSION->restore;
  14         }
  15     }
  16
  17     //If restore session info exists, but we are posting parameters
  18     //manually, this has prioriry
  19     if (isset($restore) and isset($restore_restoreto)) {
  20         unset($restore);
  21     }
  22
  23     //Check required objects from session
  24
  25     //info
  26     require_variable($info);
  27
  28     //course_header
  29     require_variable($course_header);
  30
  31     //If the restore object doesn't exist, we are going
  32     //to check every variable individually and create it
  33
  34     if (!isset($restore)) {
  35         //Check that we have all we need
  36         //backup_unique_code
  37         require_variable($backup_unique_code);
  38         //file
  39         require_variable($file);
  40         //Checks for the required restoremod parameters
  41         if ($allmods = get_records("modules")) {
  42             foreach ($allmods as $mod) {
  43                 $modname = $mod->name;
  44                 $var = "restore_".$modname;
  45                 require_variable($$var);
  46                 $var = "restore_user_info_".$modname;
  47                 require_variable($$var);
  48             }
  49         }
  50         //restoreto
  51         require_variable($restore_restoreto);
  52         //restore_users
  53         require_variable($restore_users);
  54         //restore_logs
  55         require_variable($restore_logs);
  56         //restore_user_files
  57         require_variable($restore_user_files);
  58         //restore_course_files
  59         require_variable($restore_course_files);
  60         //restore_course_files
  61         require_variable($restore_course_files);
  62
  63         //Check we've selected a course
  64         if (!isset($course_id)) {
  65             $course_id = 0;
  66         }
  67
  68         //We are here, having all we need !!
  69         //Create the restore object and put it in the session
  70         $restore->backup_unique_code = $backup_unique_code;
  71         $restore->file = $file;
  72         if ($allmods = get_records("modules")) {
  73             foreach ($allmods as $mod) {
  74                 $modname = $mod->name;
  75                 $var = "restore_".$modname;
  76                 $restore->mods[$modname]->restore=$$var;
  77                 $var = "restore_user_info_".$modname;
  78                 $restore->mods[$modname]->userinfo=$$var;
  79             }
  80         }
  81         $restore->restoreto=$restore_restoreto;
  82         $restore->users=$restore_users;
  83         $restore->logs=$restore_logs;
  84         $restore->user_files=$restore_user_files;
  85         $restore->course_files=$restore_course_files;
  86         $restore->course_id=$course_id;
  87     } else {
  88         //We have the object, so check if we have a new course_id
  89         //passed as parammeter
  90         if ($course_id) {
  91             $restore->course_id=$course_id;
  92         }
  93     }
  94     //We have the object with data, put it in the session
  95     $SESSION->restore = $restore;
  96
  97     //From here to the wnd of the script, only use the $restore object
  98
  99     //Check login
 100     require_login();
 101
 102     //Check admin
 103     if (!empty($id)) {
 104         if (!isteacheredit($id)) {
 105             error("You need to be a teacher or admin user to use this page.", "$CFG->wwwroot/login/index.php");
 106         }
 107     } else {
 108         if (!isadmin()) {
 109             error("You need to be an admin user to use this page.", "$CFG->wwwroot/login/index.php");
 110         }
 111     }
 112
 113     //Check site
 114     if (!$site = get_site()) {
 115         error("Site not found!");
 116     }
 117
 118     //Depending the selected restoreto:
 119     // If user is a teacher (and nor admin):
 120     //    0-Current course, deleting: Put $restore->course_id and $restore->deleting (true), create the restore object
 121     //    1-Current course, adding: Put $restore->course_id and $restore->deleting (false), create the restore object
 122     // If the uses is an admin:
 123     //    0-Existing course, deleting: Select the destination course and launch the check again, then
 124     //        put $restore->course_id and $restore->deleting (true), create the restore object.
 125     //    1-Existing course, adding: Select the destination course and launch the check again, then
 126     //        put $restore->course_id and $restore->deleting (false), create the restore object.
 127     //    2-New course: Create the restore object and launch the execute.
 128
 129     //If the user is a teacher and not an admin
 130     if (isteacher($id) and !isadmin()) {
 131         $restore->course_id = $id;
 132         if ($restore->restoreto == 0) {
 133             $restore->deleting = true;
 134         } else {
 135             $restore->deleting = false;
 136         }
 137     }
 138
 139     //If the user is an admin
 140     if (isadmin()) {
 141         //Set restore->deleting as needed
 142         if ($restore->restoreto == 0) {
 143             $restore->deleting = true;
 144         } else {
 145             $restore->deleting = false;
 146         }
 147     }
 148
 149     //Now, select the course if needed
 150     if (($restore->restoreto == 0 or $restore->restoreto == 1) and ($restore->course_id == 0) and (isadmin())) {
 151         if ($courses = get_courses("all","c.fullname")) {
 152             print_heading(get_string("choosecourse"));
 153             print_simple_box_start("CENTER");
 154             foreach ($courses as $course) {
 155                 echo "<A HREF=\"restore.php?course_id=$course->id&launch=check&id=$id&file=$file\">$course->fullname ($course->shortname)</A><BR>";
 156             }
 157             print_simple_box_end();
 158         } else {
 159             print_heading(get_string("nocoursesyet"));
 160             print_continue("$CFG->wwwroot/$CFG->admin/index.php");
 161         }
 162     //Checks everything and execute restore
 163     } else if ((($restore->restoreto == 0 or $restore->restoreto == 1) and ($restore->course_id != 0)) or ($restore->restoreto == 2)) {
 164         $show_continue_button = true;
 165         //Check if we've selected any mod's user info and restore->users
 166         //is set to none. Change it to course and inform.
 167         if ($restore->users == 2) {
 168             $changed = false;
 169             $mods = $restore->mods;
 170             foreach ($mods as $mod) {
 171                 if ($mod->userinfo) {
 172                     $changed = true;
 173                 }
 174             }
 175             if ($changed) {
 176                 echo get_string ("noteuserschangednonetocourse");
 177                 echo "<hr noshade size=\"1\">";
 178                 $restore->users = 1;
 179             }
 180         }
 181         //Save the restore session object
 182         $SESSION->restore = $restore;
 183         if ($show_continue_button) {
 184             //Print the continue button to execute the restore NOW !!!!
 185             //All is prepared !!!
 186             echo "<CENTER>";
 187             $hidden["launch"]             = "execute";
 188             $hidden["file"]               =  $file;
 189             $hidden["id"]                 =  $id;
 190             print_single_button("restore.php", $hidden, get_string("restorecoursenow"),"post");
 191             echo "</CENTER>";
 192         } else {
 193             //Show error
 194             error ("Something was wrong checking restore preferences");
 195         }
 196
 197     //If we are here. Something must be wrong. Debug !!!
 198     } else {
 199         print_object($restore);
 200         print_object($info);
 201         print_object($course_header);
 202         error ("Something must be wrong");
 203     }
 204
 205 ?>