course/scales.php

   1 <?php // $Id$
   2       // Allows a creator to edit custom scales, and also display help about scales
   3
   4     require_once("../config.php");
   5     require_once("lib.php");
   6
   7     $id          = required_param('id', PARAM_INT);               // course id
   8     $scaleid     = optional_param('scaleid', 0, PARAM_INT);       // scale id
   9     $action      = optional_param('action', 'undefined', PARAM_ALPHA); // action to execute
  10     $name        = optional_param('name', '', PARAM_CLEAN);       // scale name
  11     $description = optional_param('description', '', PARAM_CLEAN);// scale description
  12     $list        = optional_param('list', 0, PARAM_BOOL);         // show listing in help window
  13
  14     if (! $course = get_record("course", "id", $id)) {
  15         error("Course ID was incorrect");
  16     }
  17
  18     require_login($course->id);
  19     $context = get_context_instance(CONTEXT_COURSE, $course->id);
  20
  21     $strscale = get_string("scale");
  22     $strscales = get_string("scales");
  23     $strcustomscale = get_string("scalescustom");
  24     $strstandardscale = get_string("scalesstandard");
  25     $strcustomscales = get_string("scalescustom");
  26     $strstandardscales = get_string("scalesstandard");
  27     $strname = get_string("name");
  28     $strdescription = get_string("description");
  29     $strsavechanges = get_string("savechanges");
  30     $strchangessaved = get_string("changessaved");
  31     $strdeleted = get_string("deleted");
  32     $strdelete = get_string("delete");
  33     $stredit = get_string("edit");
  34     $strdown = get_string("movedown");
  35     $strup = get_string("moveup");
  36     $strmoved = get_string("changessaved");
  37     $srtcreatenewscale = get_string("scalescustomcreate");
  38     $strhelptext = get_string("helptext");
  39     $stractivities = get_string("activities");
  40     $stroptions = get_string("action");
  41     $strtype = get_string("group");
  42
  43     /// init this here so we can pass it by reference to every call to site_scale_used to avoid getting the courses out of the db over and over again
  44     $courses = array();
  45
  46     /// If scale data is being submitted, then save it and continue
  47     $focus = "";
  48     $errors = NULL;
  49
  50     if ($action == 'sendform' and confirm_sesskey()) {
  51         if ($form = data_submitted()) {
  52             if (empty($form->name)) {
  53                 $errors[$scaleid]->name = true;
  54                 $focus = "form$scaleid.save";
  55             }
  56             if (empty($form->scalescale)) {
  57                 $errors[$scaleid]->scalescale = true;
  58                 $focus = "form$scaleid.save";
  59             }
  60
  61             if (!$errors) {
  62                 $newscale=NULL;
  63                 $newscale->name = $form->name;
  64                 $newscale->scale = $form->scalescale;
  65                 $newscale->description = $form->description;
  66                 $newscale->courseid = $form->courseid;
  67                 $newscale->userid = $USER->id;
  68                 $newscale->timemodified = time();
  69
  70                 if (empty($scaleid)) {
  71                     $newscale->courseid = $course->id;
  72                     if (!insert_record("scale", $newscale)) {
  73                         error("Could not insert the new scale!");
  74                     }
  75                 } else {
  76                     $newscale->id = $scaleid;
  77                     if (!update_record("scale", $newscale)) {
  78                         error("Could not update that scale!");
  79                     }
  80                 }
  81
  82                 $notify = "$newscale->name: $strchangessaved";
  83                 $focus = "form$scaleid.save";
  84             } else {
  85                 if (!empty($scaleid)) {
  86                     $action = "edit";
  87                 } else {
  88                     $action = "new";
  89                 }
  90             }
  91         }
  92     }
  93
  94     //If action is details, show the popup info
  95     if ($action == "details") {
  96         //Check for teacher edit
  97            require_capability('moodle/course:managescales', $context);
  98
  99         //Check for scale
 100         if (! $scale = get_record("scale", "id", $scaleid)) {
 101             error("Scale ID was incorrect");
 102         }
 103
 104         //        $scales_course_uses = course_scale_used($course->id,$scale->id);
 105         //        $scales_site_uses = site_scale_used($scale->id,$courses);
 106         $scalemenu = make_menu_from_list($scale->scale);
 107
 108         print_header("$course->shortname: $strscales", $course->fullname,
 109                  "$course->shortname -> $strscales -> $scale->name", "", "", true, "&nbsp;", "&nbsp;");
 110
 111         close_window_button();
 112
 113         echo "<p/>";
 114         print_simple_box_start("center");
 115         print_heading($scale->name);
 116         echo "<center>";
 117         choose_from_menu($scalemenu, "", "", "");
 118         echo "</center>";
 119         echo text_to_html($scale->description);
 120         print_simple_box_end();
 121         echo "<p/>";
 122
 123         close_window_button();
 124         print_footer();
 125         exit;
 126     }
 127
 128     //If action is edit or new, show the form
 129     if ($action == "edit" || $action == "new") {
 130
 131         $sesskey = !empty($USER->id) ? $USER->sesskey : '';
 132
 133            require_capability('moodle/course:managescales', $context);
 134
 135         //Check for scale if action = edit
 136         if ($action == "edit") {
 137             if (! $scale = get_record("scale", "id", $scaleid)) {
 138                 error("Scale ID was incorrect");
 139             }
 140         } else {
 141             $scale = new object();
 142             $scale->id = 0;
 143             $scale->courseid = $course->id;
 144             $scale->name = "";
 145             $scale->scale = "";
 146             $scale->description = "";
 147         }
 148
 149         //Calculate the uses
 150         if ($scale->courseid == 0) {
 151             $scale_uses = site_scale_used($scale->id,$courses);
 152         } else {
 153             $scale_uses = course_scale_used($course->id,$scale->id);
 154         }
 155
 156         //Check for scale_uses
 157         if (!empty($scale_uses)) {
 158             error("Scale is in use and cannot be modified",$CFG->wwwroot.'/course/scales.php?id='.$course->id);
 159         }
 160
 161         //Check for standard scales
 162         if ($scale->courseid == 0 and !has_capability('moodle/course:managescales', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
 163             error("Only administrators can edit this scale",$CFG->wwwroot.'/course/scales.php?id='.$course->id);
 164         }
 165
 166         //Print out the headers
 167         print_header("$course->shortname: $strscales", $course->fullname,
 168                  "<a href=\"view.php?id=$course->id\">$course->shortname</a>".
 169                  " -> <a href=\"scales.php?id=$course->id\">$strscales</a>".
 170                  " -> ".get_string("editinga","",$strscale), $focus);
 171
 172         //Title
 173         print_heading_with_help($strscales, "scales");
 174
 175         if (!empty($errors) and ($form->scaleid == $scale->id)) {
 176             $scale->name = $form->name;
 177             $scale->scale = $form->scalescale;
 178             $scale->description = $form->description;
 179         }
 180         echo "<form method=\"post\" action=\"scales.php\" id=\"form$scale->id\">";
 181         echo "<table cellpadding=\"9\" cellspacing=\"0\" align=\"center\" class=\"generalbox\">";
 182         echo "<tr valign=\"top\">";
 183         if (!empty($errors[$scale->id]->name)) {
 184             $class = "class=\"highlight\"";
 185         } else {
 186             $class = "";
 187         }
 188         echo "<td align=\"right\"><b>$strname:</b></td>";
 189         echo "<td $class><input type=\"text\" name=\"name\" size=\"50\" value=\"".s($scale->name)."\" />";
 190         echo "</td>";
 191         echo "</tr>";
 192         echo "<tr valign=\"top\">";
 193         if (!empty($errors[$scale->id]->scalescale)) {
 194             $class = "class=\"highlight\"";
 195         } else {
 196             $class = "";
 197         }
 198         echo "<td align=\"right\"><b>$strscale:</b></td>";
 199         echo "<td $class><textarea name=\"scalescale\" cols=\"50\" rows=\"2\" wrap=\"virtual\">".s($scale->scale)."</textarea>";
 200         echo "</td>";
 201         echo "</tr>";
 202         echo "<tr valign=\"top\">";
 203         echo "<td align=\"right\"><b>$strdescription:</b>";
 204         helpbutton("text", $strhelptext);
 205         echo "</td>";
 206         echo "<td><textarea name=\"description\" cols=\"50\" rows=\"8\" wrap=\"virtual\">".s($scale->description)."</textarea>";
 207         echo "</td>";
 208         echo "</tr>";
 209         if ($scale->id) {
 210             echo "<tr valign=\"top\">";
 211             echo "<td align=\"right\">";
 212             echo "</td>";
 213             echo "<td>".get_string("usedinnplaces","",$scale_uses);
 214             echo "</td>";
 215             echo "</tr>";
 216         }
 217         echo "<tr>";
 218         echo "<td colspan=\"2\" align=\"center\">";
 219         echo "<input type=\"hidden\" name=\"id\" value=\"$course->id\" />";
 220         echo "<input type=\"hidden\" name=\"sesskey\" value=\"$sesskey\" />";
 221         echo "<input type=\"hidden\" name=\"courseid\" value=\"$scale->courseid\" />";
 222         echo "<input type=\"hidden\" name=\"scaleid\" value=\"$scale->id\" />";
 223         echo "<input type=\"hidden\" name=\"action\" value=\"sendform\" />";
 224         echo "<input type=\"submit\" name=\"save\" value=\"$strsavechanges\" />";
 225         echo "</td></tr></table>";
 226         echo "</form>";
 227         echo "<br />";
 228
 229         print_footer($course);
 230
 231         exit;
 232     }
 233
 234     //If action is delete, do it
 235     if ($action == "delete" and confirm_sesskey()) {
 236         //Check for teacher edit
 237            require_capability('moodle/course:managescales', $context);
 238         //Check for scale if action = edit
 239         if (! $scale = get_record("scale", "id", $scaleid)) {
 240             error("Scale ID was incorrect");
 241         }
 242
 243         //Calculate the uses
 244         if ($scale->courseid == 0) {
 245             $scale_uses = site_scale_used($scale->id,$courses);
 246         } else {
 247             $scale_uses = course_scale_used($course->id,$scale->id);
 248         }
 249
 250         //Check for scale_uses
 251         if (!empty($scale_uses)) {
 252             error("Scale is in use and cannot be deleted",$CFG->wwwroot.'/course/scales.php?id='.$course->id);
 253         }
 254
 255         //Check for standard scales
 256         if ($scale->courseid == 0 and !has_capability('moodle/course:managescales', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
 257             error("Only administrators can delete this scale",$CFG->wwwroot.'/course/scales.php?id='.$course->id);
 258         }
 259
 260         if (delete_records("scale", "id", $scaleid)) {
 261             $notify = "$scale->name: $strdeleted";
 262         }
 263     }
 264
 265     //If action is down or up, do it
 266     if (($action == "down" || $action == "up") and confirm_sesskey()) {
 267         //Check for teacher edit
 268            require_capability('moodle/course:managescales', $context);
 269         //Check for scale if action = edit
 270         if (! $scale = get_record("scale", "id", $scaleid)) {
 271             error("Scale ID was incorrect");
 272         }
 273
 274         //Calculate the uses
 275         if ($scale->courseid == 0) {
 276             $scale_uses = site_scale_used($scale->id,$courses);
 277         } else {
 278             $scale_uses = course_scale_used($course->id,$scale->id);
 279         }
 280
 281         //Check for scale_uses
 282         if (!empty($scale_uses)) {
 283             error("Scale is in use and cannot be moved",$CFG->wwwroot.'/course/scales.php?id='.$course->id);
 284         }
 285
 286         if ($action == "down") {
 287             $scale->courseid = 0;
 288         } else {
 289             $scale->courseid = $course->id;
 290         }
 291
 292         if (set_field("scale", "courseid", $scale->courseid, "id", $scale->id)) {
 293             $notify = "$scale->name: $strmoved";
 294         }
 295     }
 296
 297     if ($list) {       /// Just list the scales (in a helpwindow)
 298            require_capability('moodle/course:viewscales', $context);
 299         print_header($strscales);
 300
 301         if (!empty($scaleid)) {
 302             if ($scale = get_record("scale", "id", "$scaleid")) {
 303                 $scalemenu = make_menu_from_list($scale->scale);
 304
 305                 print_simple_box_start("center");
 306                 print_heading($scale->name);
 307                 echo "<center>";
 308                 choose_from_menu($scalemenu, "", "", "");
 309                 echo "</center>";
 310                 echo text_to_html($scale->description);
 311                 print_simple_box_end();
 312             }
 313             echo "<br />";
 314             close_window_button();
 315             exit;
 316         }
 317
 318         if ($scales = get_records("scale", "courseid", "$course->id", "name ASC")) {
 319             print_heading($strcustomscales);
 320
 321             if (has_capability('moodle/course:managescales', get_context_instance(CONTEXT_COURSE, $course->id))) {
 322                 echo "<p align=\"center\">(";
 323                 print_string("scalestip");
 324                 echo ")</p>";
 325             }
 326
 327             foreach ($scales as $scale) {
 328                 $scalemenu = make_menu_from_list($scale->scale);
 329
 330                 print_simple_box_start("center");
 331                 print_heading($scale->name);
 332                 echo "<center>";
 333                 choose_from_menu($scalemenu, "", "", "");
 334                 echo "</center>";
 335                 echo text_to_html($scale->description);
 336                 print_simple_box_end();
 337                 echo "<hr />";
 338             }
 339
 340         } else {
 341             if (has_capability('moodle/course:managescales', $context)) {
 342                 echo "<p align=\"center\">(";
 343                 print_string("scalestip");
 344                 echo ")</p>";
 345             }
 346         }
 347
 348         if ($scales = get_records("scale", "courseid", "0", "name ASC")) {
 349             print_heading($strstandardscales);
 350             foreach ($scales as $scale) {
 351                 $scalemenu = make_menu_from_list($scale->scale);
 352
 353                 print_simple_box_start("center");
 354                 print_heading($scale->name);
 355                 echo "<center>";
 356                 choose_from_menu($scalemenu, "", "", "");
 357                 echo "</center>";
 358                 echo text_to_html($scale->description);
 359                 print_simple_box_end();
 360                 echo "<hr />";
 361             }
 362         }
 363
 364         close_window_button();
 365         exit;
 366     }
 367
 368
 369 /// The rest is all about editing the scales
 370
 371     require_capability('moodle/course:managescales', $context);
 372
 373 /// Print out the main page
 374
 375     print_header("$course->shortname: $strscales", $course->fullname,
 376                  "<a href=\"view.php?id=$course->id\">$course->shortname</a>
 377                   -> $strscales");
 378
 379     print_heading_with_help($strscales, "scales");
 380
 381     $options = array();
 382     $options['id'] = $course->id;
 383     $options['scaleid'] = 0;
 384     $options['action'] = 'new';
 385
 386     print_simple_box_start('center');
 387     print_single_button($CFG->wwwroot.'/course/scales.php',$options,$srtcreatenewscale,'POST');
 388     print_simple_box_end();
 389     echo "<p />";
 390
 391     if (!empty($notify)) {
 392         notify($notify, "green");
 393     }
 394
 395     $scales = array();
 396     $customscales = get_records("scale", "courseid", "$course->id", "name ASC");
 397     $standardscales = get_records("scale", "courseid", "0", "name ASC");
 398
 399     if ($customscales) {
 400         foreach($customscales as $scale) {
 401             $scales[] = $scale;
 402         }
 403     }
 404
 405     if ($standardscales) {
 406         foreach($standardscales as $scale) {
 407             $scales[] = $scale;
 408         }
 409     }
 410
 411     if ($scales) {
 412         //Calculate the base path
 413         $path = "$CFG->wwwroot/course";
 414
 415         $data = array();
 416         $incustom = true;
 417         foreach($scales as $scale) {
 418             //Check the separator
 419             if (empty($scale->courseid) && $incustom) {
 420                 $incustom = false;
 421                 $line = "hr";
 422                 $data[] = $line;
 423             }
 424             $line = array();
 425             $line[] = "<a target=\"scale\" title=\"$scale->name\" href=\"$CFG->wwwroot/course/scales.php?id=$course->id&amp;scaleid=$scale->id&amp;action=details\" "."onclick=\"return openpopup('/course/scales.php?id=$course->id\&amp;scaleid=$scale->id&amp;action=details', 'scale', 'menubar=0,location=0,scrollbars,resizable,width=600,height=450', 0);\">".$scale->name."</a><br /><font size=\"-1\">".str_replace(",",", ",$scale->scale)."</font>";
 426             if (!empty($scale->courseid)) {
 427                 $scales_uses = course_scale_used($course->id,$scale->id);
 428             } else {
 429                 $scales_uses = site_scale_used($scale->id,$courses);
 430             }
 431             $line[] = $scales_uses;
 432             if ($incustom) {
 433                 $line[] = $strcustomscale;
 434             } else {
 435                 $line[] = $strstandardscale;
 436             }
 437             $buttons = "";
 438             if (empty($scales_uses) && ($incustom || has_capability('moodle/course:managescales', get_context_instance(CONTEXT_SYSTEM, SITEID)))) {
 439                 $buttons .= "<a title=\"$stredit\" href=\"$path/scales.php?id=$course->id&amp;scaleid=$scale->id&amp;action=edit\"><img".
 440                             " src=\"$CFG->pixpath/t/edit.gif\" class=\"iconsmall\" alt=\"$stredit\" /></a> ";
 441                 if ($incustom && has_capability('moodle/course:managescales', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
 442                     $buttons .= "<a title=\"$strdown\" href=\"$path/scales.php?id=$course->id&amp;scaleid=$scale->id&amp;action=down&amp;sesskey=$USER->sesskey\"><img".
 443                                 " src=\"$CFG->pixpath/t/down.gif\" class=\"iconsmall\" alt=\"$strdown\" /></a> ";
 444                 }
 445                 if (!$incustom && has_capability('moodle/course:managescales', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
 446                     $buttons .= "<a title=\"$strup\" href=\"$path/scales.php?id=$course->id&amp;scaleid=$scale->id&amp;action=up&amp;sesskey=$USER->sesskey\"><img".
 447                                 " src=\"$CFG->pixpath/t/up.gif\" class=\"iconsmall\" alt=\"$strup\" /></a> ";
 448                 }
 449                 $buttons .= "<a title=\"$strdelete\" href=\"$path/scales.php?id=$course->id&amp;scaleid=$scale->id&amp;action=delete&amp;sesskey=$USER->sesskey\"><img".
 450                             " src=\"$CFG->pixpath/t/delete.gif\" class=\"iconsmall\" alt=\"$strdelete\" /></a> ";
 451             }
 452             $line[] = $buttons;
 453
 454             $data[] = $line;
 455         }
 456         $head = $strscale.",".$stractivities.",".$strtype.",".$stroptions;
 457         $table->head = explode(",",$head);
 458         $size = "50%,20%,20%,10%";
 459         $table->size = explode(",",$size);
 460         $align = "left,center,center,center";
 461         $table->align = explode(",",$align);
 462         $wrap = ",nowrap,nowrap,nowrap";
 463         $table->wrap = explode(",",$wrap);
 464         $table->width = "90%";
 465         $table->data = $data;
 466         print_table ($table);
 467     }
 468
 469     print_footer($course);
 470
 471
 472 ?>