backup/restore_form.html

   1 <?php //$Id$
   2     //This page prints the restore form to select everything yo want
   3     //to restore. Form is dinamically buid, depending of "info" object
   4     //that contains the backup contents and depending of every mod
   5     //capabilities.
   6
   7     //Get objects from session
   8     if (!($info = $SESSION->info)) {
   9       error( 'info object missing from session' );
  10     }
  11     if (!($course_header = $SESSION->course_header)) {
  12       error( 'course_header object missing from session' );
  13     }
  14
  15     $restore_gradebook_history =  optional_param('restore_gradebook_history', 0, PARAM_INT);
  16
  17     //Check that we have all we need
  18     //backup_unique_code
  19     $backup_unique_code = required_param( 'backup_unique_code' );
  20     //file
  21     $file = required_param( 'file' );
  22
  23     //Check login
  24     require_login();
  25
  26     //Check admin
  27     if (!empty($id)) {
  28         if (!has_capability('moodle/site:restore', get_context_instance(CONTEXT_COURSE, $id))) {
  29             error("You need to be a teacher or admin user to use this page.", "$CFG->wwwroot/login/index.php");
  30         }
  31     } else {
  32         if (!has_capability('moodle/site:restore', get_context_instance(CONTEXT_SYSTEM))) {
  33             error("You need to be an admin user to use this page.", "$CFG->wwwroot/login/index.php");
  34         }
  35     }
  36
  37     //Check site
  38     if (!$site = get_site()) {
  39         error("Site not found!");
  40     }
  41
  42     //Checks for the required files/functions to restore every mod
  43     $count = 0;
  44     if ($allmods = get_records("modules") ) {
  45         foreach ($allmods as $mod) {
  46             $modname = $mod->name;
  47             $modfile = "$CFG->dirroot/mod/$modname/restorelib.php";
  48             $modrestore = $modname."_restore_mods";
  49             if (file_exists($modfile)) {
  50                include_once($modfile);
  51                if (function_exists($modrestore)) {
  52                    $var = "exists_".$modname;
  53                    $$var = true;
  54                    $count++;
  55                }
  56             }
  57             //Check data
  58             //Check module info
  59             $var = "restore_".$modname;
  60             if (!isset($$var)) {
  61                 $$var = 1;
  62             }
  63             //Check include user info
  64             $var = "restore_user_info_".$modname;
  65             if (!isset($$var)) {
  66                 $$var = 1;
  67             }
  68         }
  69     }
  70
  71     //Check other parameters
  72     if (!isset($restore_metacourse)) {
  73         $restore_metacourse = 1;
  74     }
  75
  76     if (!isset($restore_users)) {
  77         $restore_users = 1;
  78     }
  79
  80     if (!isset($restore_groups)) {
  81         if (empty($CFG->enablegroupings)) {
  82             $restore_groups = RESTORE_GROUPS_ONLY;
  83         } else {
  84             $restore_groups = RESTORE_GROUPS_GROUPINGS;
  85         }
  86     }
  87
  88     if (!isset($restore_logs)) {
  89         $restore_logs = 1;
  90     }
  91
  92     if (!isset($restore_user_files)) {
  93         $restore_user_files = 1;
  94     }
  95
  96     if (!isset($restore_course_files)) {
  97         $restore_course_files = 1;
  98     }
  99
 100     if (!isset($restore_site_files)) {
 101         $restore_site_files = 1;
 102     }
 103
 104     if (!isset($restore_messages)) {
 105         $restore_messages = 1;
 106         }
 107
 108     if (!isset($restore_restoreto)) {
 109         if (!user_can_create_courses()) {
 110             $restore_restoreto = 1;
 111         } else {
 112             $restore_restoreto = 2;
 113         }
 114     }
 115
 116     if (!isset($course_header->category->id)) {
 117         $course_header->category->id = 0;
 118     }
 119
 120     if(!isset($form1->startdate)) {
 121         $form1->startdate = $course_header->course_startdate; //$course_header->course_startdate;
 122     }
 123
 124     if (empty($form1->shortname)) {
 125        $form1->shortname = $course_header->course_shortname; //'_shortname'; //$course_header->course_shortname;
 126     }
 127
 128     if (empty($form1->fullname)) {
 129       $form1->fullname = $course_header->course_fullname; // '_fullname';   //$course_header->course_fullname;
 130     }
 131
 132     if ($count == 0) {
 133         notice("No restorable modules are installed!");
 134     }
 135
 136 ?>
 137
 138 <script type="text/javascript">
 139 <!--
 140 function selectItemInMenuByName(formId, menuName, selectIndex ) {
 141     myForm = document.getElementById(formId)
 142     for (i=0,n=myForm.elements.length;i<n;i++) {
 143         myLen = menuName.length;
 144         myName = myForm.elements[i].name;
 145         myType = myForm.elements[i].type;
 146         if (myName.substring(0,myLen) == menuName && myType == "select-one") {
 147             myForm.elements[i].options[selectIndex].selected = true;
 148         }
 149     }
 150 }
 151
 152 function selectItemInRadioByName(formId, radioName, selectIndex ) {
 153     myForm = document.getElementById(formId)
 154     for (i=0,n=myForm.elements.length;i<n;i++) {
 155         myLen = radioName.length;
 156         myName = myForm.elements[i].name;
 157         myType = myForm.elements[i].type;
 158         if (myName.substring(0,myLen) == radioName && myType == "radio") {
 159             myRadioGroup = myForm.elements[myName];
 160             myRadioGroup[selectIndex].checked = true;
 161         }
 162     }
 163 }
 164
 165 function selectItemInCheckboxByName(formId, checkName, checked ) {
 166     myForm = document.getElementById(formId)
 167     for (i=0,n=myForm.elements.length;i<n;i++) {
 168         myLen = checkName.length;
 169         myName = myForm.elements[i].name;
 170         myType = myForm.elements[i].type;
 171         if (myName.substring(0,myLen) == checkName && myType == "checkbox") {
 172             myForm.elements[i].checked = checked;
 173         }
 174     }
 175 }
 176 -->
 177 </script>
 178
 179 <form id="form1" method="post" action="restore.php">
 180 <div>
 181 <table cellpadding="5" class="boxaligncenter">
 182 <?php
 183
 184     //First, course destination
 185     //Print the full tr
 186     echo "<tr>";
 187     echo "<td align=\"right\"><b>";
 188     echo '<label for="menurestore_restoreto">'.get_string ('restoreto').'</label>';
 189     echo "</b>";
 190     echo "</td><td colspan=\"3\">";
 191
 192
 193     // permission should have been checked already
 194
 195     /**
 196      * if user has manageactivities in any course, we show
 197      *      existingcoursedeleting
 198      *      existingcourseadding
 199      * else we show
 200      *      currentcoursedeleting
 201      *      currentcourse
 202      * if user has course:create in any category, we show
 203      *      newcourse
 204      */
 205
 206     // Non-cached - get accessinfo
 207     if (isset($USER->access)) {
 208         $accessinfo = $USER->access;
 209     } else {
 210         $accessinfo = get_user_access_sitewide($USER->id);
 211     }
 212
 213     $mycourses = get_user_courses_bycap($USER->id, 'moodle/site:restore', $accessinfo, true);
 214     // if the user can manage 2 or more courses,
 215     // or if the only course the user can manage is not the current course
 216     // we show options for existing courses
 217
 218     if (count($mycourses) > 1) {
 219         // if user can manage more than 1 course, or if user can restore to a single different course
 220         $restore_restoreto_options[0] = get_string("existingcoursedeleting");
 221         $restore_restoreto_options[1] = get_string("existingcourseadding");
 222     // else if the user can write to current course
 223     } else if (has_capability('moodle/site:restore', get_context_instance(CONTEXT_COURSE, $id))){
 224         $restore_restoreto_options[0] = get_string("currentcoursedeleting");
 225         $restore_restoreto_options[1] = get_string("currentcourseadding");
 226     }
 227
 228     // if user can create any course at all, give the option
 229     if (user_can_create_courses()) {
 230         $restore_restoreto_options[2] = get_string("newcourse");
 231     }
 232
 233 /// Acummulator for hidden options and proper XHTML output
 234     $hidden_options = '';
 235
 236     choose_from_menu($restore_restoreto_options, "restore_restoreto", $restore_restoreto, "");
 237     echo "</td></tr>";
 238     if (user_can_create_courses()) {  //display these fields conditionally
 239
 240         // find the list of cates user can edit
 241         echo "<tr valign=\"top\" >";
 242         echo "<td align=\"right\">";
 243         echo '<label for="menurestore_restorecatto">'.get_string ('category').'</label>';
 244         echo "</td>";
 245         echo "<td>";
 246         make_categories_list($categories, $parents);
 247         choose_from_menu($categories, "restore_restorecatto", $course_header->category->id, "");
 248         echo "</td>";
 249         echo "</tr>";
 250
 251         echo "<tr valign=\"top\" >";
 252         echo "<td align=\"right\">";
 253         echo '<label for="shortnamefield">'.get_string ('shortname').'</label>';
 254         echo "</td>";
 255         echo "<td><input type=\"text\" id=\"shortnamefield\" name=\"shortname\" maxlength=\"100\"  size=\"20\" value=\"$form1->shortname\" alt=\"".get_string("shortname")."\"  />" ;
 256         helpbutton("courseshortname", get_string("shortname")) ;
 257         if (isset($err["shortname"])) formerr($err["shortname"]);
 258         echo "</td>";
 259         echo "</tr>";
 260         echo "<tr valign=\"top\" >";
 261         echo "<td align=\"right\">";
 262         echo '<label for="fullnamefield">'.get_string ('fullname').'</label>';
 263         echo "</td>";
 264         echo "<td><input type=\"text\" id=\"fullnamefield\" name=\"fullname\" maxlength=\"254\" size=\"50\" value=\"$form1->fullname\" alt=\" ".get_string("fullname")."\"  />" ;
 265         helpbutton("coursefullname", get_string("fullname")) ;
 266         if (isset($err["fullname"])) formerr($err["fullname"]);
 267         echo"</td></tr>";
 268         echo "<tr valign=\"top\"> ";
 269         echo "<td align=\"right\"> ";
 270         print_string("startdate");
 271         echo "</td><td>";
 272     /// Show the roll dates option only if the backup course has a start date
 273     /// (some formats like main page, social..., haven't it and rolling dates
 274     /// from 0 produces crazy dates. MDL-10125
 275         if ($form1->startdate) {
 276             print_date_selector("startday", "startmonth", "startyear", $form1->startdate);
 277         } else {
 278             print_string('notavailable');
 279             echo '<input type="hidden" name="startyear" value="0" />';
 280             echo '<input type="hidden" name="startmonth" value="0" />';
 281             echo '<input type="hidden" name="startday" value="0" />';
 282         }
 283         helpbutton("coursestartdate", get_string("startdate"));
 284         echo "</td></tr>";
 285     }
 286     //Line
 287     echo "<tr><td colspan=\"4\"><hr /></td></tr>";
 288     //Now, check modules and info and show posibilities
 289     if ($allmods = get_records("modules") ) {
 290         //Print option to select/deselect everything with 1 click.
 291         echo "<tr>";
 292         echo "<td align=\"right\">";
 293         echo '<b>'.get_string("include")."</b>";
 294         echo "</td><td>";
 295         echo "<a href=\"javascript:void(0);\" onclick=\"selectItemInCheckboxByName('form1', 'restore_', true);\">".
 296              get_string("all")."</a>/";
 297         echo "<a href=\"javascript:void(0);\" onclick=\"selectItemInCheckboxByName('form1', 'restore_', false);\">".
 298              get_string("none")."</a>";
 299         echo "</td>";
 300         echo "<td align=\"right\">";
 301         echo '<b>&nbsp;</b>';
 302         echo "</td><td>";
 303         echo "<a href=\"javascript:void(0);\" onclick=\"selectItemInCheckboxByName('form1', 'restore_user_info_', true);\">".
 304              get_string("all")."</a>/";
 305         echo "<a href=\"javascript:void(0);\" onclick=\"selectItemInCheckboxByName('form1', 'restore_user_info_', false);\">".
 306              get_string("none")."</a>";
 307         echo "</td>";
 308         echo "</tr>";
 309         echo "<tr><td colspan=\"4\"><hr /></td></tr>";
 310         $currentrow = 0;
 311         $nonrestmod = '';
 312         foreach ($allmods as $mod) {
 313             $modname = $mod->name;
 314             $modrestore = $modname."_restore_mods";
 315             //If exists the lib & function
 316             $exist = "exists_".$modname;
 317             $restore_var = "restore_".$modname;
 318             $user_info_var = "restore_user_info_".$modname;
 319             if (isset($$exist)) {
 320                 if ($$exist) {
 321                     //Now check that we have that module info in the backup file
 322                     if (isset($info->mods[$modname]) && $info->mods[$modname]->backup == "true") {
 323                         //Print the full tr
 324                         echo "<tr class=\"r".$currentrow."\">";
 325                         echo "<td align=\"right\">&nbsp;";
 326                         echo "</td><td>";
 327                         $restore_options[1] = get_string("yes");
 328                         $restore_options[0] = get_string("no");
 329                         //choose_from_menu($restore_options, $restore_var, $$restore_var, "");
 330                         //choose_from_radio($restore_options, $restore_var, $$restore_var);
 331                         //Print the checkbox
 332                         print_checkbox($restore_var, $$restore_var, $$restore_var, get_string("modulenameplural",$modname),'','selectItemInCheckboxByName(\'form1\',\'restore_'.$modname.'\',this.checked)');
 333                         //If backup contains user data, then show menu, else fix it to
 334                         //without user data
 335                         echo "</td><td align=\"right\">&nbsp;";
 336                         echo "</td><td>";
 337                         if ($info->mods[$modname]->userinfo == "true") {
 338                             $restore_user_options[1] = get_string("yes");
 339                             $restore_user_options[0] = get_string("no");
 340                             //choose_from_menu($restore_user_options, $user_info_var, $$user_info_var, "");
 341                             //choose_from_radio($restore_user_options, $user_info_var, $$user_info_var);
 342                             print_checkbox($user_info_var, $$user_info_var, $$user_info_var, get_string("userdata"),'','selectItemInCheckboxByName(\'form1\',\'restore_user_info_'.$modname.'\',this.checked)');
 343                         } else {
 344                             //Module haven't userdata
 345                             echo get_string("withoutuserdata");
 346                             echo "<input type=\"hidden\" name=\"$user_info_var\" value=\"0\" />";
 347                         }
 348                         echo "</td></tr>";
 349                         if (isset($info->mods[$modname]->instances)) {
 350                             $instances = $info->mods[$modname]->instances;
 351                         }
 352                         if (!empty($instances) && is_array($instances)) {
 353                             echo '<tr><td></td><td colspan="3"><table class="restore-form-instances">';
 354                             foreach ($instances as $instance) {
 355                                 echo '<tr><td>';
 356                                 $var = 'restore_'.$modname.'_instance_'.$instance->id;
 357                                 $$var = optional_param($var,1);
 358                                 print_checkbox($var,$$var,$$var,$instance->name,$instance->name,'this.form.elements[\'restore_'.$modname.'\'].checked=1;');
 359                                 echo '</td><td align="right">&nbsp;';
 360                                 $var = 'restore_user_info_'.$modname.'_instance_'.$instance->id;
 361                                 $$var = optional_param($var,1);
 362                                 if ($info->mods[$modname]->instances[$instance->id]->userinfo == 'true') {
 363                                     print_checkbox($var,$$var,$$var,get_string('userdata'),'','this.form.elements[\'restore_user_info_'.$modname.'\'].checked=1;');
 364                                 } else {
 365                                     echo '<input type="hidden" name="'.$var.'" value="0" />';
 366                                 }
 367                                 echo '</td></tr>';
 368                             }
 369                             echo '</table></td></tr>';
 370                         }
 371                     } else {
 372                         //Module isn't restorable
 373                         $nonrestmod .= "<input type=\"hidden\" name=\"$restore_var\" value=\"0\" />";
 374                         $nonrestmod .= "<input type=\"hidden\" name=\"$user_info_var\" value=\"0\" />";
 375                     }
 376                 } else {
 377                     //Module isn't restorable
 378                     $nonrestmod .= "<input type=\"hidden\" name=\"$restore_var\" value=\"0\" />";
 379                     $nonrestmod .= "<input type=\"hidden\" name=\"$user_info_var\" value=\"0\" />";
 380                 }
 381             } else {
 382                 //Module isn't restorable
 383                 $nonrestmod .= "<input type=\"hidden\" name=\"$restore_var\" value=\"0\" />";
 384                 $nonrestmod .= "<input type=\"hidden\" name=\"$user_info_var\" value=\"0\" />";
 385             }
 386             $currentrow = ($currentrow + 1) % 2;
 387         }
 388         //Line
 389         echo "<tr><td colspan=\"4\">$nonrestmod<hr /></td></tr>";
 390
 391         //Now print the Metacourse tr
 392         echo "<tr>";
 393         echo "<td align=\"right\" colspan=\"2\"><b>";
 394         echo '<label for="menurestore_metacourse">'.get_string ("metacourse").'</label>';
 395         echo "</b></td><td colspan=\"2\">";
 396         //If metacourse are in the backup file, show menu, else fixed to no
 397         if ($info->backup_metacourse == "true") {
 398             $metacourse_options = array();
 399             $metacourse_options[0] = get_string("no");
 400             $metacourse_options[1] = get_string("yes");
 401             choose_from_menu($metacourse_options, "restore_metacourse", $restore_metacourse, "");
 402         } else {
 403             echo get_string("no");
 404             echo "<input type=\"hidden\" id=\"menurestore_metacourse\" name=\"restore_metacourse\" value=\"0\" />";
 405         }
 406         echo "</td></tr>";
 407         //Now print the Users tr
 408         echo "<tr>";
 409         echo "<td align=\"right\" colspan=\"2\"><b>";
 410         echo '<label for="menurestore_users">'.get_string ("users").'</label>';
 411         echo "</b></td><td colspan=\"2\">";
 412         //If some user is present in the backup file
 413         if ($info->backup_users == "all" or $info->backup_users == "course") {
 414             $user_options = array();
 415             //If all users are in the backup file
 416             if ($info->backup_users == "all") {
 417                 $user_options[0] = get_string("all");
 418             }
 419             $user_options[1] = get_string("course");
 420             $user_options[2] = get_string("none");
 421             choose_from_menu($user_options, "restore_users", $restore_users, "");
 422         } else {
 423             echo get_string("none");
 424             echo "<input type=\"hidden\" id=\"menurestore_users\" name=\"restore_users\" value=\"2\" />";
 425
 426         }
 427         echo "</td></tr>";
 428
 429         //Now print the Groups tr (assume there is no $info->backup_groups)
 430         echo "<tr>";
 431         echo "<td align=\"right\" colspan=\"2\"><b>";
 432         $helplink = helpbutton('grouprestore', get_string('groups'), '', true, false, '', true);
 433         if (empty($CFG->enablegroupings)) {
 434             echo '<label for="menurestore_groups">'.get_string ("groups").'</label>'.$helplink;
 435             echo "</b></td><td colspan=\"2\">";
 436             $group_options[RESTORE_GROUPS_NONE] = get_string('no');
 437             $group_options[RESTORE_GROUPS_ONLY] = get_string('yes');
 438         } else {
 439             echo '<label for="menurestore_groups">'.get_string ('groupsgroupings', 'group').'</label>'.$helplink;
 440             echo "</b></td><td colspan=\"2\">";
 441             $group_options[RESTORE_GROUPS_NONE] = get_string('none');
 442             $group_options[RESTORE_GROUPS_ONLY] = get_string('groupsonly', 'group');
 443             $group_options[RESTORE_GROUPINGS_ONLY] = get_string('groupingsonly', 'group');
 444             $group_options[RESTORE_GROUPS_GROUPINGS] = get_string('groupsgroupings', 'group'); //all.
 445
 446         } /*else {
 447             echo get_string('none');
 448             echo "<input type=\"hidden\" name=\"restore_groups\" value=\"2\" />";
 449         }*/
 450         choose_from_menu($group_options, 'restore_groups', $restore_groups, '');
 451         echo "</td></tr>";
 452
 453         //Now print the Logs tr
 454         echo "<tr>";
 455         echo "<td align=\"right\" colspan=\"2\"><b>";
 456         echo '<label for="menurestore_logs">'.get_string ("logs").'</label>';
 457         echo "</b></td><td colspan=\"2\">";
 458         //If logs are in the backup file, show menu, else fixed to no
 459         if ($info->backup_logs == "true") {
 460             $log_options = array();
 461             $log_options[0] = get_string("no");
 462             $log_options[1] = get_string("yes");
 463             choose_from_menu($log_options, "restore_logs", $restore_logs, "");
 464         } else {
 465             echo get_string("no");
 466             echo "<input type=\"hidden\" id=\"menurestore_logs\" name=\"restore_logs\" value=\"0\" />";
 467         }
 468         echo "</td></tr>";
 469
 470         //Now print the User Files tr
 471         echo "<tr>";
 472         echo "<td align=\"right\" colspan=\"2\"><b>";
 473         echo '<label for="menurestore_user_files">'.get_string ("userfiles").'</label>';
 474         echo "</b></td><td colspan=\"2\">";
 475         //If user files are in the backup file, show menu, else fixed to no
 476         if ($info->backup_user_files == "true") {
 477             $user_file_options = array();
 478             $user_file_options[0] = get_string("no");
 479             $user_file_options[1] = get_string("yes");
 480             choose_from_menu($user_file_options, "restore_user_files", $restore_user_files, "");
 481         } else {
 482             echo get_string("no");
 483             echo "<input type=\"hidden\" id=\"menurestore_user_files\" name=\"restore_user_files\" value=\"0\" />";
 484         }
 485         echo "</td></tr>";
 486
 487         //Now print the Course Files tr
 488         echo "<tr>";
 489         echo "<td align=\"right\" colspan=\"2\"><b>";
 490         echo '<label for="menurestore_course_files">'.get_string ("coursefiles").'</label>';
 491         echo "</b></td><td colspan=\"2\">";
 492         echo "<input type=\"hidden\" name=\"backup_unique_code\" value=\"$backup_unique_code\" />";
 493         echo "<input type=\"hidden\" name=\"file\" value=\"$file\" />";
 494         //If course files are in the backup file, show menu, else fixed to no
 495         if ($info->backup_course_files == "true") {
 496             $course_file_options = array();
 497             $course_file_options[0] = get_string("no");
 498             $course_file_options[1] = get_string("yes");
 499             choose_from_menu($course_file_options, "restore_course_files", $restore_course_files, "");
 500         } else {
 501             echo get_string("no");
 502             echo "<input type=\"hidden\" id=\"menurestore_course_files\" name=\"restore_course_files\" value=\"0\" />";
 503         }
 504         echo "</td></tr>";
 505
 506
 507         //Now print the Site Files tr
 508         echo "<tr>";
 509         echo "<td align=\"right\" colspan=\"2\"><b>";
 510         echo '<label for="menurestore_site_files">'.get_string ("sitefiles").'</label>';
 511         echo "</b></td><td colspan=\"2\">";
 512         //If site files are in the backup file, show menu, else fixed to no
 513         if (isset($info->backup_site_files) && $info->backup_site_files == "true") {
 514             $site_file_options = array();
 515             $site_file_options[0] = get_string("no");
 516             $site_file_options[1] = get_string("yes");
 517             choose_from_menu($site_file_options, "restore_site_files", $restore_site_files, "");
 518         } else {
 519             echo get_string("no");
 520             echo "<input type=\"hidden\" id=\"menurestore_site_files\" name=\"restore_site_files\" value=\"0\" />";
 521         }
 522         echo "</td></tr>";
 523
 524         // do you want grade histories to be restored?
 525         if (empty($CFG->disablegradehistory)) {
 526             echo "<tr>";
 527             echo "<td align=\"right\" colspan=\"2\"><b>";
 528             echo '<label for="menurestore_gradebook_history">'.get_string ('gradebookhistories', 'grades').'</label>';
 529             echo "</b></td><td colspan=\"2\">";
 530             if (isset($info->gradebook_histories) && $info->gradebook_histories == "true") {
 531                 $gradebook_history_options = array();
 532                 $gradebook_history_options[0] = get_string("no");
 533                 $gradebook_history_options[1] = get_string("yes");
 534                 choose_from_menu($gradebook_history_options, "restore_gradebook_history", $restore_gradebook_history, "");
 535             } else {
 536                 echo get_string("no");
 537                 echo "<input type=\"hidden\" id=\"menurestore_gradebook_history\" name=\"restore_gradebook_history\" value=\"0\" />";
 538             }
 539             echo "</td></tr>";
 540         } else {
 541             $hidden_options .= '<input type="hidden" name="restore_gradebook_history" value="0" />';
 542         }
 543
 544
 545         //This tr is slighty different. Everything becomes hidden if
 546         //we haven't messages is the backup, to avoid confusions to users.
 547         //If messages are in the backup file, show menu, else fixed to no and show nothing
 548         if (isset($info->backup_messages) && $info->backup_messages == "true") {
 549             echo "<tr>";
 550             echo "<td align=\"right\" colspan=\"2\"><b>";
 551             echo '<label for="menurestore_messages">'.get_string ('messages', 'messages').'</label>';
 552             echo "</b></td><td colspan=\"2\">";
 553             $message_options = array();
 554             $message_options[0] = get_string("no");
 555             $message_options[1] = get_string("yes");
 556             choose_from_menu($message_options, "restore_messages", $restore_messages, "");
 557             echo "</td></tr>";
 558         } else {
 559             $hidden_options .= '<input type="hidden" name="restore_messages" value="0" />';
 560         }
 561
 562     }
 563 ?>
 564 </table>
 565
 566 <hr />
 567 <?php
 568
 569 print_heading(get_string('rolemappings'));
 570 $xml_file  = $CFG->dataroot."/temp/backup/".$backup_unique_code."/moodle.xml";
 571
 572 $info = restore_read_xml_info($xml_file);
 573
 574 // fix for MDL-9068, front page course is just a normal course
 575 $siterolesarray = get_assignable_roles (get_context_instance(CONTEXT_COURSE, $course->id), "shortname");
 576 $siterolesnamearray = get_assignable_roles (get_context_instance(CONTEXT_COURSE, $course->id), "name");
 577 $allroles = get_records('role');
 578
 579 echo ('<table width="100%" class="restore-form-instances">');
 580 echo ('<tr><td align="right" style="width:50%"><b>'.get_string('sourcerole').'</b></td><td align="left" style="width:50%"><b>'.get_string('targetrole').'</b></td></tr>');
 581
 582 if ($info->backup_moodle_version < 2006092801) {
 583     // 1.6 and below backup
 584
 585     /// Editting teacher
 586     echo ('<tr><td align="right">');
 587     echo '<label for="menudefaultteacheredit">'.get_string ('defaultcourseteacher').'</label>';
 588     echo ('</td><td algin="left">');
 589
 590     // get the first teacheredit legacy
 591     $roles = get_roles_with_capability('moodle/legacy:editingteacher', CAP_ALLOW, get_context_instance(CONTEXT_SYSTEM));
 592
 593     $editteacher = reset($roles);
 594     choose_from_menu ($siterolesarray, "defaultteacheredit", $editteacher->id, 'new role', '', '0');
 595     echo ('</td></tr>');
 596
 597     /// Non-editting teacher
 598     echo ('<tr><td align="right">');
 599     echo '<label for="menudefaultteacher">'.get_string ('noneditingteacher').'</label>';
 600     print_string('noneditingteacher');
 601     echo ('</td><td algin="left">');
 602
 603     // get the first teacheredit legacy
 604     $roles = get_roles_with_capability('moodle/legacy:teacher', CAP_ALLOW, get_context_instance(CONTEXT_SYSTEM));
 605     $teacher = reset($roles);
 606
 607     choose_from_menu ($siterolesarray, "defaultteacher", $teacher->id, 'new role', '', '0');
 608     echo ('</td></tr>');
 609
 610
 611     /// Student
 612     echo ('<tr><td align="right">');
 613     echo '<label for="menudefaultstudent">'.get_string ('defaultcoursestudent').'</label>';
 614     echo ('</td><td algin="left">');
 615
 616     // get the first teacheredit legacy
 617     $roles = get_roles_with_capability('moodle/legacy:student', CAP_ALLOW, get_context_instance(CONTEXT_SYSTEM));
 618     $studentrole = array_shift($roles);
 619
 620     choose_from_menu ($siterolesarray, "defaultstudent", $studentrole->id, 'new role', '', '0');
 621     echo ('</td></tr>');
 622
 623 } else {
 624     // 1.7 and above backup
 625     $roles = restore_read_xml_roles($xml_file);
 626
 627     if (!empty($roles->roles)) { // possible to have course with no roles
 628         foreach ($siterolesarray as $siteroleid=>$siteroleshortname) {
 629             $siteroleschoicearray[$siteroleid] = $siterolesnamearray[$siteroleid]." (". $siterolesarray[$siteroleid].")";
 630         }
 631
 632         foreach ($roles->roles as $roleid=>$role) {
 633
 634             $mappableroles = $siteroleschoicearray;
 635
 636             echo ('<tr><td align="right">');
 637             echo '<label for="menuroles_'.$roleid.'">'.$role->name." (".($role->shortname).")".'</label>';
 638             echo ('</td><td align="left">');
 639
 640             /// first, we see if any exact role definition is found
 641             /// if found, that is the only option of restoring to
 642
 643             if ($samerole = restore_samerole($roleid, $role)) {
 644                 $matchrole = $samerole->id;
 645                 // if an exact role is found, it does not matter whether this user can assign this role or not,
 646                 // this will be presented as a valid option regardless
 647                 $mappableroles[$samerole->id] = $allroles[$samerole->id]->name." (". $allroles[$samerole->id]->shortname.")";
 648             } else {
 649                 // no exact role found, let's try to match shortname
 650                 // this is useful in situations where basic roles differ slightly in definition
 651                 $matchrole = 0;
 652                 foreach ($siterolesarray as $siteroleid=>$siteroleshortname) {
 653                     if ($siteroleshortname == $role->shortname) {
 654                         $matchrole = $siteroleid;
 655                         break;
 656                     }
 657                 }
 658             }
 659             choose_from_menu ($mappableroles, "roles_".$roleid, $matchrole, 'new role', '', '0');
 660             echo ('</td></tr>');
 661         }
 662     }
 663
 664 } // end else
 665
 666 echo ('</table>'); // end of role mappings table
 667
 668 ?>
 669 <br />
 670 <div style="text-align:center">
 671 <?php
 672 /// Print captured hidden options, now that we have closed the table
 673     echo $hidden_options;
 674 ?>
 675 <input type="hidden" name="id"     value="<?php  p($id) ?>" />
 676 <input type="hidden" name="launch" value="check" />
 677 <input type="hidden" name="fromform" value="1" />
 678 <input type="submit" value="<?php  print_string("continue") ?>" />
 679 <input type="submit" name="cancel" value="<?php  print_string("cancel") ?>" />
 680 </div>
 681 </div>
 682 </form>
 683
 684 <?php
 685
 686 /**
 687  * Look for a role in the database with exactly the same definition as the one in the backup file.
 688  *
 689  * @param integer $roleid the id that the role in the backup files had on the old server.
 690  * @param object $role the rest of the definition of the role from the backup file.
 691  */
 692 function restore_samerole($roleid, $rolefromxml) {
 693     global $CFG;
 694
 695     // First we try some intelligent guesses, then, if none of those work, we do a more extensive
 696     // search.
 697
 698     // First guess, try let's use the id
 699     if (restore_is_samerole($roleid, $rolefromxml)) {
 700         return get_record('role', 'id', $roleid);
 701     }
 702
 703     // Second guess, try the shortname
 704     $testroleid = get_field('role', 'id', 'shortname', $rolefromxml->shortname);
 705     if ($testroleid && restore_is_samerole($testroleid, $rolefromxml)) {
 706         return get_record('role', 'id', $testroleid);
 707     }
 708
 709     // Finally, search all other roles. In orter to speed things up, we exclude the ones we have
 710     // already tested, and we only search roles with the same number of capabilities set in their
 711     // definition.
 712     $extracondition = '';
 713     if ($testroleid) {
 714         $extracondition = "AND roleid <> $testroleid";
 715     }
 716     $candidateroleids = get_records_sql("SELECT roleid
 717            FROM {$CFG->prefix}role_capabilities
 718            WHERE roleid <> $roleid $extracondition
 719            GROUP BY roleid
 720            HAVING COUNT(capability) = ".count($rolefromxml->capabilities));
 721     if (!empty($candidateroleids)) {
 722         foreach ($candidateroleids as $testroleid => $notused) {
 723             if (restore_is_samerole($testroleid, $rolefromxml)) {
 724                 return get_record('role', 'id', $testroleid);
 725             }
 726         }
 727     }
 728
 729     return false;
 730 }
 731
 732 /**
 733  * Compare a role in the database with one loaded from the backup file, and determine whether
 734  * they have identical permissions for each capability.
 735  * @param integer $testroleid the id of the role from the database to test against.
 736  * @param object $rolefromxml the role definition loaded from the backup file.
 737  * @return boolean true if the two roles are identical.
 738  */
 739 function restore_is_samerole($testroleid, $rolefromxml) {
 740     // Load the role definition from the databse.
 741     $rolefromdb = get_records('role_capabilities', 'roleid', $testroleid, '', 'capability,permission');
 742     if (!$rolefromdb) {
 743         return false;
 744     }
 745
 746     // Quick check, do they have the permissions on the same number of capabilities?
 747     if (count($rolefromdb) != count($rolefromxml->capabilities)) {
 748         return false;
 749     }
 750
 751     // If they do, check each one.
 752     foreach ($rolefromdb as $capability => $permissions) {
 753         if (!isset($rolefromxml->capabilities[$capability]) ||
 754                 $permissions->permission != $rolefromxml->capabilities[$capability]->permission) {
 755             return false;
 756         }
 757     }
 758     return true;
 759 }
 760 ?>