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, $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     $navlinks = array();
 177     $navlinks[] = array('name' => $strcourses, 'link' => 'index.php', 'type' => 'misc');
 178     $navlinks[] = array('name' => $strsearch, 'link' => 'search.php', 'type' => 'misc');
 179     $navlinks[] = array('name' => "'".s($search, true)."'", 'link' => null, 'type' => 'misc');
 180     $navigation = build_navigation($navlinks);
 181
 182     print_header("$site->fullname : $strsearchresults", $site->fullname, $navigation, "", "", "", $searchform);
 183
 184
 185     $lastcategory = -1;
 186     if ($courses) {
 187
 188         print_heading("$strsearchresults: $totalcount");
 189
 190         $encodedsearch = urlencode(stripslashes($search));
 191         print_paging_bar($totalcount, $page, $perpage, "search.php?search=$encodedsearch&amp;perpage=$perpage&amp;",'page',($perpage == 99999));
 192
 193         if ($perpage != 99999 && $totalcount > $perpage) {
 194             echo "<center><p>";
 195             echo "<a href=\"search.php?search=$encodedsearch&perpage=99999\">".get_string("showall", "", $totalcount)."</a>";
 196             echo "</p></center>";
 197         }
 198
 199         if (!has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM))) {
 200             foreach ($courses as $course) {
 201                 $course->fullname = highlight("$search", $course->fullname);
 202                 $course->summary = highlight("$search", $course->summary);
 203                 $course->summary .= "<br /><p class=\"category\">";
 204                 $course->summary .= "$strcategory: <a href=\"category.php?id=$course->category\">";
 205                 $course->summary .= $displaylist[$course->category];
 206                 $course->summary .= "</a></p>";
 207                 print_course($course);
 208                 print_spacer(5,5);
 209             }
 210         } else { // slightly more sophisticated
 211
 212             echo "<form id=\"movecourses\" action=\"search.php\" method=\"post\">\n";
 213             echo "<div><input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />\n";
 214             echo "<input type=\"hidden\" name=\"search\" value=\"".s($search, true)."\" />\n";
 215             echo "<input type=\"hidden\" name=\"page\" value=\"$page\" />\n";
 216             echo "<input type=\"hidden\" name=\"perpage\" value=\"$perpage\" /></div>\n";
 217             echo "<table border=\"0\" cellspacing=\"2\" cellpadding=\"4\" class=\"generalbox boxaligncenter\">\n<tr>\n";
 218             echo "<th scope=\"col\">$strcourses</th>\n";
 219             echo "<th scope=\"col\">$strcategory</th>\n";
 220             echo "<th scope=\"col\">$strselect</th>\n";
 221             echo "<th scope=\"col\">$stredit</th></tr>\n";
 222
 223             foreach ($courses as $course) {
 224
 225                 if (isset($course->context)) {
 226                     $coursecontext = $course->context;
 227                 } else {
 228                     $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
 229                 }
 230
 231                 $course->fullname = highlight("$search", $course->fullname);
 232                 $linkcss = $course->visible ? "" : " class=\"dimmed\" ";
 233
 234                 // are we displaying the front page (courseid=1)?
 235                 if ($course->id == 1) {
 236                     echo "<tr>\n";
 237                     echo "<td><a href=\"$CFG->wwwroot\">$strfrontpage</a></td>\n";
 238
 239                     // can't do anything else with the front page
 240                     echo "  <td>&nbsp;</td>\n"; // category place
 241                     echo "  <td>&nbsp;</td>\n"; // select place
 242                     echo "  <td>&nbsp;</td>\n"; // edit place
 243                     echo "</tr>\n";
 244                     continue;
 245                 }
 246
 247                 echo "<tr>\n";
 248                 echo "<td><a $linkcss href=\"view.php?id=$course->id\">"
 249                     . format_string($course->fullname) . "</a></td>\n";
 250                 echo "<td>".$displaylist[$course->category]."</td>\n";
 251                 echo "<td>\n";
 252
 253                 // this is ok since this will get inherited from course category context
 254                 // if it is set
 255                 if (has_capability('moodle/category:update', $coursecontext)) {
 256                     echo "<input type=\"checkbox\" name=\"c$course->id\" />\n";
 257                 } else {
 258                     echo "<input type=\"checkbox\" name=\"c$course->id\" disabled=\"disabled\" />\n";
 259                 }
 260
 261                 echo "</td>\n";
 262                 echo "<td>\n";
 263                 $pixpath = $CFG->pixpath;
 264
 265                 // checks whether user can update course settings
 266                 if (has_capability('moodle/course:update', $coursecontext)) {
 267                     echo "<a title=\"".get_string("settings")."\" href=\"$CFG->wwwroot/course/edit.php?id=$course->id\">\n<img".
 268                         " src=\"$pixpath/t/edit.gif\" class=\"iconsmall\" alt=\"".get_string("settings")."\" /></a>\n ";
 269                 }
 270
 271                 // checks whether user can do role assignment
 272                 if (has_capability('moodle/role:assign', $coursecontext)) {
 273                     echo'<a title="'.get_string('assignroles', 'role').'" href="'.$CFG->wwwroot.'/'.$CFG->admin.'/roles/assign.php?contextid='.$coursecontext->id.'">';
 274                     echo '<img src="'.$CFG->pixpath.'/i/roles.gif" class="iconsmall" alt="'.get_string('assignroles', 'role').'" /></a> ' . "\n";
 275                 }
 276
 277                 // checks whether user can delete course
 278                 if (has_capability('moodle/course:delete', $coursecontext)) {
 279                     echo "<a title=\"".get_string("delete")."\" href=\"delete.php?id=$course->id\">\n<img".
 280                         " src=\"$pixpath/t/delete.gif\" class=\"iconsmall\" alt=\"".get_string("delete")."\" /></a>\n ";
 281                 }
 282
 283                 // checks whether user can change visibility
 284                 if (has_capability('moodle/course:visibility', $coursecontext)) {
 285                     if (!empty($course->visible)) {
 286                         echo "<a title=\"".get_string("hide")."\" href=\"search.php?search=$encodedsearch&amp;perpage=$perpage&amp;page=$page&amp;hide=$course->id&amp;sesskey=$USER->sesskey\">\n<img".
 287                             " src=\"$pixpath/t/hide.gif\" class=\"iconsmall\" alt=\"".get_string("hide")."\" /></a>\n ";
 288                     } else {
 289                         echo "<a title=\"".get_string("show")."\" href=\"search.php?search=$encodedsearch&amp;perpage=$perpage&amp;page=$page&amp;show=$course->id&amp;sesskey=$USER->sesskey\">\n<img".
 290                             " src=\"$pixpath/t/show.gif\" class=\"iconsmall\" alt=\"".get_string("show")."\" /></a>\n ";
 291                     }
 292                 }
 293
 294                 // checks whether user can do site backup
 295                 if (has_capability('moodle/site:backup', $coursecontext)) {
 296                     echo "<a title=\"".get_string("backup")."\" href=\"../backup/backup.php?id=$course->id\">\n<img".
 297                         " src=\"$pixpath/t/backup.gif\" class=\"iconsmall\" alt=\"".get_string("backup")."\" /></a>\n ";
 298                 }
 299
 300                 // checks whether user can do restore
 301                 if (has_capability('moodle/site:restore', $coursecontext)) {
 302                     echo "<a title=\"".get_string("restore")."\" href=\"../files/index.php?id=$course->id&amp;wdir=/backupdata\">\n<img".
 303                         " src=\"$pixpath/t/restore.gif\" class=\"iconsmall\" alt=\"".get_string("restore")."\" /></a>\n ";
 304                 }
 305
 306                 echo "</td>\n</tr>\n";
 307             }
 308             echo "<tr>\n<td colspan=\"4\" style=\"text-align:center\">\n";
 309             echo "<br />";
 310             echo "<input type=\"button\" onclick=\"checkall()\" value=\"$strselectall\" />\n";
 311             echo "<input type=\"button\" onclick=\"uncheckall()\" value=\"$strdeselectall\" />\n";
 312             choose_from_menu ($displaylist, "moveto", "", get_string("moveselectedcoursesto"), "javascript: getElementById('movecourses').submit()");
 313             echo "</td>\n</tr>\n";
 314             echo "</table>\n</form>";
 315
 316         }
 317
 318         print_paging_bar($totalcount, $page, $perpage, "search.php?search=$encodedsearch&amp;perpage=$perpage&amp;",'page',($perpage == 99999));
 319
 320         if ($perpage != 99999 && $totalcount > $perpage) {
 321             echo "<center><p>";
 322             echo "<a href=\"search.php?search=$encodedsearch&perpage=99999\">".get_string("showall", "", $totalcount)."</a>";
 323             echo "</p></center>";
 324         }
 325
 326     } else {
 327         if (!empty($search)) {
 328             print_heading(get_string("nocoursesfound", "", s($search, true)));
 329         }
 330         else {
 331             print_heading( $strnovalidcourses );
 332         }
 333     }
 334
 335     echo "<br /><br />";
 336
 337     print_course_search($search);
 338
 339     print_footer();
 340
 341
 342 ?>
 343