mod/choice/view.php

   1 <?php  // $Id$
   2
   3     require_once("../../config.php");
   4     require_once("lib.php");
   5
   6     require_variable($id);    // Course Module ID
   7
   8     if (! $cm = get_record("course_modules", "id", $id)) {
   9         error("Course Module ID was incorrect");
  10     }
  11
  12     if (! $course = get_record("course", "id", $cm->course)) {
  13         error("Course is misconfigured");
  14     }
  15
  16     require_course_login($course, false, $cm);
  17
  18     if (!$choice = choice_get_choice($cm->instance)) {
  19         error("Course module is incorrect");
  20     }
  21
  22     if ($choice->option) {
  23         foreach ($choice->option as $optionid => $text) {
  24             $answerchecked[$optionid] = '';
  25         }
  26     }
  27
  28     if (isset($USER->id) && $current = get_record('choice_answers', 'choiceid', $choice->id, 'userid', $USER->id)) {
  29         $answerchecked[$current->optionid] = 'checked="checked"';
  30     } else {
  31         $current = false;
  32     }
  33
  34 /// Submit any new data if there is any
  35
  36     if ($form = data_submitted()) {
  37         $timenow = time();
  38
  39         if (empty($form->answer)) {
  40             redirect("view.php?id=$cm->id", get_string('mustchooseone', 'choice'));
  41
  42         } else {
  43             $countanswers = get_records("choice_answers", "optionid", $form->answer);
  44             if ($countanswers) {
  45                 $countanswers = count($countanswers);
  46                 } else {
  47                     $countanswers = 0;
  48                 }
  49             $maxans = $choice->maxanswers[$form->answer];
  50             if (!($choice->limitanswers && ($countanswers >= $maxans) )) {
  51                 if ($current) {
  52                     $newanswer = $current;
  53                     $newanswer->optionid = $form->answer;
  54                     $newanswer->timemodified = $timenow;
  55                     if (! update_record("choice_answers", $newanswer)) {
  56                         error("Could not update your choice because of a database error");
  57                     }
  58                     add_to_log($course->id, "choice", "choose again", "view.php?id=$cm->id", $choice->id, $cm->id);
  59                 } else {
  60                     $newanswer = NULL;
  61                     $newanswer->choiceid = $choice->id;
  62                     $newanswer->userid = $USER->id;
  63                     $newanswer->optionid = $form->answer;
  64                     $newanswer->timemodified = $timenow;
  65                     if (! insert_record("choice_answers", $newanswer)) {
  66                         error("Could not save your choice");
  67                     }
  68                     add_to_log($course->id, "choice", "choose", "view.php?id=$cm->id", $choice->id, $cm->id);
  69                 }
  70             } else {
  71                 error("this choice is full!");
  72             }
  73         }
  74         redirect("view.php?id=$cm->id");
  75         exit;
  76     }
  77
  78
  79 /// Display the choice and possibly results
  80
  81     $strchoice = get_string("modulename", "choice");
  82     $strchoices = get_string("modulenameplural", "choice");
  83
  84     add_to_log($course->id, "choice", "view", "view.php?id=$cm->id", $choice->id, $cm->id);
  85
  86     print_header_simple(format_string($choice->name), "",
  87                  "<a href=\"index.php?id=$course->id\">$strchoices</a> -> ".format_string($choice->name), "", "", true,
  88                   update_module_button($cm->id, $course->id, $strchoice), navmenu($course, $cm));
  89
  90 /// Check to see if groups are being used in this choice
  91     if ($groupmode = groupmode($course, $cm)) {   // Groups are being used
  92         $currentgroup = setup_and_print_groups($course, $groupmode, "view.php?id=$cm->id");
  93     } else {
  94         $currentgroup = false;
  95     }
  96
  97     if (isteacher($course->id)) {
  98         if ( $allanswers = get_records("choice_answers", "choiceid", $choice->id)) {
  99             $responsecount = 0;
 100             foreach ($allanswers as $aa) {
 101                 if (isstudent($course->id, $aa->userid) or isteacher($course->id, $aa->userid)) { //check to make sure user is enrolled in course.
 102                     $responsecount++;
 103                 }
 104             }
 105         } else {
 106             $responsecount = 0;
 107         }
 108         echo '<div class="reportlink">';
 109         echo "<a href=\"report.php?id=$cm->id\">".get_string("viewallresponses", "choice", $responsecount)."</a>";
 110         echo '</div>';
 111     } else if (!$cm->visible) {
 112         notice(get_string("activityiscurrentlyhidden"));
 113     }
 114
 115     if ($choice->text) {
 116         print_simple_box(format_text($choice->text, $choice->format), 'center', '70%', '', 5, 'generalbox', 'intro');
 117     }
 118
 119     //if user has already made a selection, and they are not allowed to update it, show their selected answer.
 120     if (isset($USER->id) && ($current = get_record('choice_answers', 'choiceid', $choice->id, 'userid', $USER->id)) && !$choice->allowupdate) {
 121         print_simple_box(get_string("yourselection", "choice", userdate($choice->timeopen)).": ".format_string(choice_get_option_text($choice, $current->optionid)), "center");
 122     }
 123
 124 /// Print the form
 125
 126     if ($choice->timeopen > time() ) {
 127         print_simple_box(get_string("notopenyet", "choice", userdate($choice->timeopen)), "center");
 128         print_footer($course);
 129         exit;
 130     }
 131
 132     if ( (!$current or $choice->allowupdate) and ($choice->timeclose >= time() or $choice->timeclose == 0) ) {
 133     // They haven't made their choice yet or updates allowed and choice is open
 134
 135         echo "<form name=\"form\" method=\"post\" action=\"view.php\">";
 136
 137         switch ($choice->display) {
 138             case CHOICE_DISPLAY_HORIZONTAL:
 139                 echo "<table cellpadding=\"20\" cellspacing=\"20\" align=\"center\"><tr>";
 140                 $aid = 0;
 141                 foreach ($choice->option as $optionid => $text) {
 142                     if ($text) {
 143                     echo "<td align=\"center\" valign=\"top\">";
 144                     echo "<input type=\"radio\" name=\"answer\" value=\"".$optionid."\" ".$answerchecked[$optionid]." alt=\"".strip_tags(format_text($text))."\" />";
 145                     $countanswers = (get_records("choice_answers", "optionid", $optionid));
 146                     if ($countanswers) {
 147                         $countanswers = count($countanswers);
 148                     } else {
 149                         $countanswers = 0;
 150                     }
 151                     $maxans = $choice->maxanswers[$optionid];
 152                     if ($choice->limitanswers && ($countanswers >= $maxans) ) {
 153                             if (!($answerchecked[$optionid])) {
 154                                 echo "<script type=\"text/javascript\">";
 155                                 echo "document.form.answer[".$aid."].disabled = true;";
 156                                 echo "</script>";
 157                             }
 158                             echo format_text($text."<br><strong>".get_string('full', 'choice')."</strong>");
 159                         } else {
 160                             echo format_text($text);
 161
 162                         }
 163                         echo "</td>";
 164                         $aid++;
 165                     }
 166                 }
 167                 echo "</tr>";
 168                 echo "</table>";
 169                 break;
 170
 171             case CHOICE_DISPLAY_VERTICAL:
 172                 $aid = 0;
 173                 $displayoptions->para = false;
 174                 echo "<table cellpadding=\"10\" cellspacing=\"10\" align=\"center\">";
 175                 foreach ($choice->option as $optionid => $text) {
 176                     if ($text) {
 177                         echo "<tr><td align=\"left\">";
 178                         echo "<input type=\"radio\" name=\"answer\" value=\"".$optionid."\" ".$answerchecked[$optionid]." alt=\"".strip_tags(format_text($text, FORMAT_MOODLE, $displayoptions))."\" />";
 179                         $countanswers = get_records("choice_answers", "optionid", $optionid);
 180                         if ($countanswers) {
 181                             $countanswers = count($countanswers);
 182                         } else {
 183                             $countanswers = 0;
 184                         }
 185                         $maxans = $choice->maxanswers[$optionid];
 186                         if ($choice->limitanswers && ($countanswers >= $maxans) ) {
 187                             if (!($answerchecked[$optionid])) {
 188                                 echo "<script type=\"text/javascript\">";
 189                                 echo "document.form.answer[".$aid."].disabled = true;";
 190                                 echo "</script>";
 191                             }
 192                         }
 193                         echo format_text($text. ' ', FORMAT_MOODLE, $displayoptions);
 194
 195                          if ($choice->limitanswers && ($choice->release==CHOICE_RELEASE_ALWAYS) ){
 196                             echo "</td><td>";
 197
 198                             if ($maxans-$countanswers==0) {
 199                                 echo get_string('full', 'choice');
 200                             } elseif ($maxans-$countanswers==1) {
 201                                 echo ($maxans - $countanswers);
 202                                 echo " ".get_string('spaceleft', 'choice');
 203                             } else {
 204                                 echo ($maxans - $countanswers);
 205                                 echo " ".get_string('spacesleft', 'choice');
 206                             }
 207                             echo "</td>";
 208                          } else if ($choice->limitanswers && ($countanswers >= $maxans)) {
 209                             echo " <strong>".get_string('full', 'choice')."</strong>";
 210                          }
 211
 212                         echo "</td>";
 213                         echo "</tr>";
 214                         $aid++;
 215                     }
 216                 }
 217                 echo "</table>";
 218                 break;
 219         }
 220
 221         echo "<center>";
 222         echo "<input type=\"hidden\" name=\"id\" value=\"$cm->id\" />";
 223         if (isstudent($course->id) or isteacher($course->id, 0)) {
 224             echo "<input type=\"submit\" value=\"".get_string("savemychoice","choice")."\" />";
 225         } else {
 226             print_string('havetologin', 'choice');
 227         }
 228         echo "</center>";
 229         echo "</form>";
 230
 231     }
 232
 233
 234
 235     // print the results at the bottom of the screen
 236
 237     if (  $choice->release == CHOICE_RELEASE_ALWAYS or
 238         ( $choice->release == CHOICE_RELEASE_AFTER_ANSWER and $current ) or
 239         ( $choice->release == CHOICE_RELEASE_AFTER_CLOSE and $choice->timeclose <= time() ) )  {
 240
 241         print_heading(get_string("responses", "choice"));
 242
 243         if ($currentgroup) {
 244             $users = get_group_users($currentgroup, "u.firstname ASC", '', 'u.id, u.picture, u.firstname, u.lastname') + get_admins();
 245         } else {
 246             $users = get_course_users($course->id, "u.firstname ASC", '', 'u.id, u.picture, u.firstname, u.lastname') + get_admins();
 247         }
 248
 249
 250         if (!$users) {
 251             print_heading(get_string("nousersyet"));
 252             print_footer($course);
 253             exit;
 254         }
 255
 256         if ($allresponses = get_records("choice_answers", "choiceid", $choice->id)) {
 257             foreach ($allresponses as $aa) {
 258                 $answers[$aa->userid] = $aa;
 259             }
 260         } else {
 261             $answers = array () ;
 262         }
 263
 264         $timenow = time();
 265
 266         foreach ($choice->option as $optionid => $text) {
 267             $useranswer[$optionid] = array();
 268         }
 269         foreach ($users as $user) {
 270             if (!empty($user->id) and !empty($answers[$user->id])) {
 271                 $answer = $answers[$user->id];
 272                 $useranswer[(int)$answer->optionid][] = $user;
 273             } else {
 274                 $useranswer[0][] = $user;
 275             }
 276         }
 277         foreach ($choice->option as $optionid => $text) {
 278             if (!$choice->option[$optionid]) {
 279                 unset($useranswer[$optionid]);     // Throw away any data that doesn't apply
 280             }
 281         }
 282         ksort($useranswer);
 283
 284         switch ($choice->publish) {
 285           case CHOICE_PUBLISH_NAMES:
 286
 287             $isteacher = isteacher($course->id);
 288
 289             $tablewidth = (int) (100.0 / count($useranswer));
 290
 291             echo "<table cellpadding=\"5\" cellspacing=\"10\" align=\"center\" class=\"results names\">";
 292             echo "<tr>";
 293             $count = 0;
 294             foreach ($useranswer as $optionid => $userlist) {
 295                 if ($optionid) {
 296                     echo "<th class=\"col$count header\" width=\"$tablewidth%\">";
 297                 } else if ($choice->showunanswered) {
 298                     echo "<th class=\"col$count header\" width=\"$tablewidth%\">";
 299                 } else {
 300                     continue;
 301                 }
 302                 echo format_string(choice_get_option_text($choice, $optionid));
 303                 echo "</th>";
 304                 $count++;
 305             }
 306             echo "</tr><tr>";
 307
 308             $count = 0;
 309             foreach ($useranswer as $optionid => $userlist) {
 310                 if ($optionid) {
 311                     echo "<td class=\"col$count data\" width=\"$tablewidth%\" valign=\"top\" nowrap=\"nowrap\">";
 312                 } else if ($choice->showunanswered) {
 313                     echo "<td class=\"col$count data\" width=\"$tablewidth%\" valign=\"top\" nowrap=\"nowrap\">";
 314                 } else {
 315                     continue;
 316                 }
 317
 318                 echo "<table width=\"100%\">";
 319                 foreach ($userlist as $user) {
 320                     if (!($optionid==0 && isadmin($user->id)) && !($optionid==0 && isteacher($course->id, $user->id) && !(isteacheredit($course->id, $user->id)) )  ) { //make sure admins and hidden teachers are not shown in not answered yet column.
 321                         echo "<tr><td width=\"10\" nowrap=\"nowrap\" class=\"picture\">";
 322                         print_user_picture($user->id, $course->id, $user->picture);
 323                         echo "</td><td width=\"100%\" nowrap=\"nowrap\" class=\"fullname\">";
 324                         echo fullname($user, $isteacher);
 325                         echo "</td></tr>";
 326                     }
 327                 }
 328                 $count++;
 329                 echo "</table>";
 330
 331                 echo "</td>";
 332             }
 333             echo "</tr><tr>";
 334             $count = 0;
 335             foreach ($useranswer as $optionid => $userlist) {
 336                 if (!$optionid and !$choice->showunanswered) {
 337                     continue;
 338                 }
 339                 echo "<td align=\"center\" class=\"count\">";
 340                 $countanswers = count_records("choice_answers", "optionid", $optionid);
 341                 if ($choice->limitanswers && !$optionid==0) {
 342                     echo get_string("taken", "choice").":";
 343                     echo $countanswers;
 344                     echo "<br>";
 345                     echo get_string("limit", "choice").":";
 346                     $choice_option = get_record("choice_options", "id", $optionid);
 347                     echo $choice_option->maxanswers;
 348                 }
 349                 echo "</td>";
 350                 $count++;
 351             }
 352
 353
 354
 355
 356             echo "</tr></table>";
 357             break;
 358
 359
 360           case CHOICE_PUBLISH_ANONYMOUS:
 361             $tablewidth = (int) (100.0 / count($useranswer));
 362
 363             echo "<table cellpadding=\"5\" cellspacing=\"10\" align=\"center\" class=\"results anonymous\">";
 364             echo "<tr>";
 365             $count = 0;
 366             foreach ($useranswer as $optionid => $userlist) {
 367                 if ($optionid) {
 368                     echo "<th width=\"$tablewidth%\" class=\"col$count header\">";
 369                 } else if ($choice->showunanswered) {
 370                     echo "<th width=\"$tablewidth%\" class=\"col$count header\">";
 371                 } else {
 372                     continue;
 373                 }
 374                 echo format_string(choice_get_option_text($choice, $optionid));
 375                 echo "</th>";
 376                 $count++;
 377             }
 378             echo "</tr><tr>";
 379
 380             $maxcolumn = 0;
 381             foreach ($useranswer as $optionid => $userlist) {
 382                 if (!$optionid and !$choice->showunanswered) {
 383                     continue;
 384                 }
 385                 $column[$optionid] = 0;
 386                 foreach ($userlist as $user) {
 387                     if (!($optionid==0 && isadmin($user->id)) && !($optionid==0 && isteacher($course->id, $user->id) && !(isteacheredit($course->id, $user->id)) )  ) { //make sure admins and hidden teachers are not shown in not answered yet column.
 388                          $column[$optionid]++;
 389                     }
 390                 }
 391                 if ($column[$optionid] > $maxcolumn) {
 392                     $maxcolumn = $column[$optionid];
 393                 }
 394             }
 395
 396             echo "</tr><tr>";
 397             $count = 0;
 398             foreach ($useranswer as $optionid => $userlist) {
 399                 if (!$optionid and !$choice->showunanswered) {
 400                     continue;
 401                 }
 402                 $height = 0;
 403                 if ($maxcolumn) {
 404                     $height = $COLUMN_HEIGHT * ((float)$column[$optionid] / (float)$maxcolumn);
 405                 }
 406                 echo "<td valign=\"bottom\" align=\"center\" class=\"col$count data\">";
 407                 echo "<img src=\"column.png\" height=\"$height\" width=\"49\" alt=\"\" />";
 408                 echo "</td>";
 409                 $count++;
 410             }
 411             echo "</tr>";
 412
 413             echo "<tr>";
 414             $count = 0;
 415             foreach ($useranswer as $optionid => $userlist) {
 416                 if (!$optionid and !$choice->showunanswered) {
 417                     continue;
 418                 }
 419                 echo "<td align=\"center\" class=\"col$count count\">";
 420                 if ($choice->limitanswers && !$optionid==0) {
 421                     echo get_string("taken", "choice").":";
 422                     echo $column[$optionid];
 423                     echo "<br>";
 424                     echo get_string("limit", "choice").":";
 425                     $choice_option = get_record("choice_options", "id", $optionid);
 426                     echo $choice_option->maxanswers;
 427                 } else {
 428                     echo $column[$optionid];
 429                 }
 430                 echo "</td>";
 431                 $count++;
 432             }
 433             echo "</tr></table>";
 434
 435             break;
 436         }
 437     }
 438
 439     print_footer($course);
 440
 441
 442 ?>