course/search.php

   1 <?php // $Id$
   2
   3 /// Displays external information about a course
   4
   5     require_once("../config.php");
   6     require_once("lib.php");
   7
   8     $search    = optional_param('search', '', PARAM_RAW);  // search words
   9     $page      = optional_param('page', 0, PARAM_INT);     // which page to show
  10     $perpage   = optional_param('perpage', 10, PARAM_INT); // how many per page
  11     $moveto    = optional_param('moveto', 0, PARAM_INT);   // move to category
  12     $edit      = optional_param('edit', -1, PARAM_BOOL);
  13     $hide      = optional_param('hide', 0, PARAM_INT);
  14     $show      = optional_param('show', 0, PARAM_INT);
  15     $blocklist = optional_param('blocklist', 0, PARAM_INT);
  16     $modulelist= optional_param('modulelist', '', PARAM_ALPHAEXT);
  17
  18     $search = trim(strip_tags($search)); // trim & clean raw searched string
  19
  20     if ($search) {
  21         $searchterms = explode(" ", $search);    // Search for words independently
  22         foreach ($searchterms as $key => $searchterm) {
  23             if (strlen($searchterm) < 2) {
  24                 unset($searchterms[$key]);
  25             }
  26         }
  27         $search = trim(implode(" ", $searchterms));
  28     }
  29
  30     $site = get_site();
  31
  32     if ($CFG->forcelogin) {
  33         require_login();
  34     }
  35
  36     if (has_capability('moodle/course:create', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
  37         if ($edit !== -1) {
  38             $USER->categoryediting = $edit;
  39             // If the edit mode we are leaving has higher per page than the one we are entering,
  40             // with pages, chances are you will get a no courses found error. So when we are switching
  41             // modes, set page to 0.
  42             $page = 0;
  43         }
  44     }
  45
  46 /// Editing functions
  47
  48     if (has_capability('moodle/course:visibility', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
  49
  50     /// Hide or show a course
  51
  52         if ($hide or $show and confirm_sesskey()) {
  53             if ($hide) {
  54                 $course = get_record("course", "id", $hide);
  55                 $visible = 0;
  56             } else {
  57                 $course = get_record("course", "id", $show);
  58                 $visible = 1;
  59             }
  60             if ($course) {
  61                 if (! set_field("course", "visible", $visible, "id", $course->id)) {
  62                     notify("Could not update that course!");
  63                 }
  64             }
  65         }
  66
  67     }
  68
  69     if (has_capability('moodle/course:create', get_context_instance(CONTEXT_SYSTEM, SITEID)) && $perpage != 99999) {
  70         $perpage = 30;
  71     }
  72
  73     $displaylist = array();
  74     $parentlist = array();
  75     make_categories_list($displaylist, $parentlist, "");
  76
  77     $strcourses = get_string("courses");
  78     $strsearch = get_string("search");
  79     $strsearchresults = get_string("searchresults");
  80     $strcategory = get_string("category");
  81     $strselect   = get_string("select");
  82     $strselectall = get_string("selectall");
  83     $strdeselectall = get_string("deselectall");
  84     $stredit = get_string("edit");
  85     $strfrontpage = get_string('frontpage', 'admin');
  86     $strnovalidcourses = get_string('novalidcourses');
  87
  88     if (empty($search) and empty($blocklist) and empty($modulelist)) {
  89         $navlinks = array();
  90         $navlinks[] = array('name' => $strcourses, 'link' => "index.php", 'type' => 'misc');
  91         $navlinks[] = array('name' => $strsearch, 'link' => null, 'type' => 'misc');
  92         $navigation = build_navigation($navlinks);
  93
  94         print_header("$site->fullname : $strsearch", $site->fullname, $navigation, "", "");
  95         print_simple_box_start("center");
  96         echo "<center>";
  97         echo "<br />";
  98         print_course_search("", false, "plain");
  99         echo "<br /><p>";
 100         print_string("searchhelp");
 101         echo "</p>";
 102         echo "</center>";
 103         print_simple_box_end();
 104         print_footer();
 105         exit;
 106     }
 107
 108     if (!empty($moveto) and $data = data_submitted() and confirm_sesskey()) {   // Some courses are being moved
 109
 110         if (! $destcategory = get_record("course_categories", "id", $data->moveto)) {
 111             error("Error finding the category");
 112         }
 113
 114         $courses = array();
 115         foreach ( $data as $key => $value ) {
 116             if (preg_match('/^c\d+$/', $key)) {
 117                 array_push($courses, substr($key, 1));
 118             }
 119         }
 120         move_courses($courses, $data->moveto);
 121     }
 122
 123     // get list of courses containing blocks if required
 124     if (!empty($blocklist) and confirm_sesskey()) {
 125         $blockid = $blocklist;
 126         if (!$blocks = get_records('block_instance', 'blockid', $blockid)) {
 127             error( "Could not read data for blockid=$blockid" );
 128         }
 129
 130         // run through blocks and get (unique) courses
 131         $courses = array();
 132         foreach ($blocks as $block) {
 133             $courseid = $block->pageid;
 134             if ($courseid==0) {
 135                 continue;
 136             }
 137             if (!$course = get_record('course', 'id', $courseid)) {
 138                 error( "Could not read data for courseid=$courseid" );
 139             }
 140             $courses[$courseid] = $course;
 141         }
 142         $totalcount = count( $courses );
 143     }
 144     // get list of courses containing modules if required
 145     elseif (!empty($modulelist) and confirm_sesskey()) {
 146         $modulename = $modulelist;
 147         if (!$modules = get_records($modulename)) {
 148             error( "Could not read data for module=$modulename" );
 149         }
 150
 151         // run through modules and get (unique) courses
 152         $courses = array();
 153         foreach ($modules as $module) {
 154             $courseid = $module->course;
 155             if ($courseid==0) {
 156                 continue;
 157             }
 158             if (!$course = get_record('course', 'id', $courseid)) {
 159                 error( "Could not read data for courseid=$courseid" );
 160             }
 161             $courses[$courseid] = $course;
 162         }
 163         $totalcount = count($courses);
 164     }
 165     else {
 166         $courses = get_courses_search($searchterms, "fullname ASC",
 167             $page*$perpage, $perpage, $totalcount);
 168     }
 169
 170     $searchform = print_course_search($search, true, "navbar");
 171
 172     if (!empty($courses) && has_capability('moodle/course:create', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
 173         $searchform .= update_categories_search_button($search,$page,$perpage);
 174     }
 175
 176
 177     print_header("$site->fullname : $strsearchresults", $site->fullname,
 178                  "<a href=\"index.php\">$strcourses</a> -> <a href=\"search.php\">$strsearch</a> -> '".s($search, true)."'", "", "", "", $searchform);
 179
 180
 181     $lastcategory = -1;
 182     if ($courses) {
 183
 184         print_heading("$strsearchresults: $totalcount");
 185
 186         $encodedsearch = urlencode(stripslashes($search));
 187         print_paging_bar($totalcount, $page, $perpage, "search.php?search=$encodedsearch&amp;perpage=$perpage&amp;",'page',($perpage == 99999));
 188
 189         if ($perpage != 99999 && $totalcount > $perpage) {
 190             echo "<center><p>";
 191             echo "<a href=\"search.php?search=$encodedsearch&perpage=99999\">".get_string("showall", "", $totalcount)."</a>";
 192             echo "</p></center>";
 193         }
 194
 195         if (!has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM))) {
 196             foreach ($courses as $course) {
 197                 $course->fullname = highlight("$search", $course->fullname);
 198                 $course->summary = highlight("$search", $course->summary);
 199                 $course->summary .= "<br /><p class=\"category\">";
 200                 $course->summary .= "$strcategory: <a href=\"category.php?id=$course->category\">";
 201                 $course->summary .= $displaylist[$course->category];
 202                 $course->summary .= "</a></p>";
 203                 print_course($course);
 204                 print_spacer(5,5);
 205             }
 206         } else { // slightly more sophisticated
 207
 208             echo "<form id=\"movecourses\" action=\"search.php\" method=\"post\">\n";
 209             echo "<div><input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />\n";
 210             echo "<input type=\"hidden\" name=\"search\" value=\"".s($search, true)."\" />\n";
 211             echo "<input type=\"hidden\" name=\"page\" value=\"$page\" />\n";
 212             echo "<input type=\"hidden\" name=\"perpage\" value=\"$perpage\" /></div>\n";
 213             echo "<table border=\"0\" cellspacing=\"2\" cellpadding=\"4\" class=\"generalbox boxaligncenter\">\n<tr>\n";
 214             echo "<th scope=\"col\">$strcourses</th>\n";
 215             echo "<th scope=\"col\">$strcategory</th>\n";
 216             echo "<th scope=\"col\">$strselect</th>\n";
 217             echo "<th scope=\"col\">$stredit</th></tr>\n";
 218             foreach ($courses as $course) {
 219
 220                 $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
 221
 222                 $course->fullname = highlight("$search", $course->fullname);
 223                 $linkcss = $course->visible ? "" : " class=\"dimmed\" ";
 224
 225                 // are we displaying the front page (courseid=1)?
 226                 if ($course->id == 1) {
 227                     echo "<tr>\n";
 228                     echo "<td><a href=\"$CFG->wwwroot\">$strfrontpage</a></td>\n";
 229
 230                     // can't do anything else with the front page
 231                     echo "  <td>&nbsp;</td>\n"; // category place
 232                     echo "  <td>&nbsp;</td>\n"; // select place
 233                     echo "  <td>&nbsp;</td>\n"; // edit place
 234                     echo "</tr>\n";
 235                     continue;
 236                 }
 237
 238                 echo "<tr>\n";
 239                 echo "<td><a $linkcss href=\"view.php?id=$course->id\">"
 240                     . format_string($course->fullname) . "</a></td>\n";
 241                 echo "<td>".$displaylist[$course->category]."</td>\n";
 242                 echo "<td>\n";
 243
 244                 // this is ok since this will get inherited from course category context
 245                 // if it is set
 246                 if (has_capability('moodle/category:update', $coursecontext)) {
 247                     echo "<input type=\"checkbox\" name=\"c$course->id\" />\n";
 248                 } else {
 249                     echo "<input type=\"checkbox\" name=\"c$course->id\" disabled=\"disabled\" />\n";
 250                 }
 251
 252                 echo "</td>\n";
 253                 echo "<td>\n";
 254                 $pixpath = $CFG->pixpath;
 255
 256                 // checks whether user can update course settings
 257                 if (has_capability('moodle/course:update', $coursecontext)) {
 258                     echo "<a title=\"".get_string("settings")."\" href=\"$CFG->wwwroot/course/edit.php?id=$course->id\">\n<img".
 259                         " src=\"$pixpath/t/edit.gif\" class=\"iconsmall\" alt=\"".get_string("settings")."\" /></a>\n ";
 260                 }
 261
 262                 // checks whether user can do role assignment
 263                 if (has_capability('moodle/role:assign', $coursecontext)) {
 264                     echo'<a title="'.get_string('assignroles', 'role').'" href="'.$CFG->wwwroot.'/'.$CFG->admin.'/roles/assign.php?contextid='.$coursecontext->id.'">';
 265                     echo '<img src="'.$CFG->pixpath.'/i/roles.gif" class="iconsmall" alt="'.get_string('assignroles', 'role').'" /></a> ' . "\n";
 266                 }
 267
 268                 // checks whether user can delete course
 269                 if (has_capability('moodle/course:delete', $coursecontext)) {
 270                     echo "<a title=\"".get_string("delete")."\" href=\"delete.php?id=$course->id\">\n<img".
 271                         " src=\"$pixpath/t/delete.gif\" class=\"iconsmall\" alt=\"".get_string("delete")."\" /></a>\n ";
 272                 }
 273
 274                 // checks whether user can change visibility
 275                 if (has_capability('moodle/course:visibility', $coursecontext)) {
 276                     if (!empty($course->visible)) {
 277                         echo "<a title=\"".get_string("hide")."\" href=\"search.php?search=$encodedsearch&amp;perpage=$perpage&amp;page=$page&amp;hide=$course->id&amp;sesskey=$USER->sesskey\">\n<img".
 278                             " src=\"$pixpath/t/hide.gif\" class=\"iconsmall\" alt=\"".get_string("hide")."\" /></a>\n ";
 279                     } else {
 280                         echo "<a title=\"".get_string("show")."\" href=\"search.php?search=$encodedsearch&amp;perpage=$perpage&amp;page=$page&amp;show=$course->id&amp;sesskey=$USER->sesskey\">\n<img".
 281                             " src=\"$pixpath/t/show.gif\" class=\"iconsmall\" alt=\"".get_string("show")."\" /></a>\n ";
 282                     }
 283                 }
 284
 285                 // checks whether user can do site backup
 286                 if (has_capability('moodle/site:backup', $coursecontext)) {
 287                     echo "<a title=\"".get_string("backup")."\" href=\"../backup/backup.php?id=$course->id\">\n<img".
 288                         " src=\"$pixpath/t/backup.gif\" class=\"iconsmall\" alt=\"".get_string("backup")."\" /></a>\n ";
 289                 }
 290
 291                 // checks whether user can do restore
 292                 if (has_capability('moodle/site:restore', $coursecontext)) {
 293                     echo "<a title=\"".get_string("restore")."\" href=\"../files/index.php?id=$course->id&amp;wdir=/backupdata\">\n<img".
 294                         " src=\"$pixpath/t/restore.gif\" class=\"iconsmall\" alt=\"".get_string("restore")."\" /></a>\n ";
 295                 }
 296
 297                 echo "</td>\n</tr>\n";
 298             }
 299             echo "<tr>\n<td colspan=\"4\" style=\"text-align:center\">\n";
 300             echo "<br />";
 301             echo "<input type=\"button\" onclick=\"checkall()\" value=\"$strselectall\" />\n";
 302             echo "<input type=\"button\" onclick=\"uncheckall()\" value=\"$strdeselectall\" />\n";
 303             choose_from_menu ($displaylist, "moveto", "", get_string("moveselectedcoursesto"), "javascript: getElementById('movecourses').submit()");
 304             echo "</td>\n</tr>\n";
 305             echo "</table>\n</form>";
 306
 307         }
 308
 309         print_paging_bar($totalcount, $page, $perpage, "search.php?search=$encodedsearch&amp;perpage=$perpage&amp;",'page',($perpage == 99999));
 310
 311         if ($perpage != 99999 && $totalcount > $perpage) {
 312             echo "<center><p>";
 313             echo "<a href=\"search.php?search=$encodedsearch&perpage=99999\">".get_string("showall", "", $totalcount)."</a>";
 314             echo "</p></center>";
 315         }
 316
 317     } else {
 318         if (!empty($search)) {
 319             print_heading(get_string("nocoursesfound", "", s($search, true)));
 320         }
 321         else {
 322             print_heading( $strnovalidcourses );
 323         }
 324     }
 325
 326     echo "<br /><br />";
 327
 328     print_course_search($search);
 329
 330     print_footer();
 331
 332
 333 ?>
 334