This is the first check-in of support for groups.
authormoodler <moodler>
Tue, 30 Dec 2003 17:18:06 +0000 (17:18 +0000)
committermoodler <moodler>
Tue, 30 Dec 2003 17:18:06 +0000 (17:18 +0000)
It's very early (it doesn't actually do anything yet!) but you can
define groups and get an idea of how the interface is shaping up.
I also wanted to show that I have actually done something on this! :-)

From here my plan is to add group support to the modules, one by one
(forums first), then go back and clean up some of the central interfaces,
graphics etc.

Finally, test, test, test and get 1.2 out well before the end of February.

22 files changed:
course/category.php
course/edit.html
course/edit.php
course/format/social/format.php
course/format/topics/format.php
course/format/weeks/format.php
course/group.php [new file with mode: 0644]
course/groups-edit.html [new file with mode: 0755]
course/groups-summary.html [new file with mode: 0644]
course/groups.php [new file with mode: 0644]
course/index.php
lib/datalib.php
lib/db/mysql.php
lib/db/mysql.sql
lib/db/postgres7.php
lib/db/postgres7.sql
lib/moodlelib.php
lib/weblib.php
pix/g/f1.png [new file with mode: 0755]
pix/g/f2.png [new file with mode: 0755]
user/pixgroup.php [new file with mode: 0644]
version.php

index 1851ad9..077901c 100644 (file)
     if (iscreator()) {
         if (isset($_GET['edit'])) {
             if ($edit == "on") {
-                $USER->editing = true;
+                $USER->categoryediting = true;
             } else if ($edit == "off") {
-                $USER->editing = false;
+                $USER->categoryediting = false;
             }
         }
         $navbaritem = update_category_button($category->id);
 
-        $creatorediting = !empty($USER->editing);
+        $creatorediting = !empty($USER->categoryediting);
         $adminediting = (isadmin() and $creatorediting);
 
     } else {
index 0655626..82b709a 100644 (file)
@@ -1,7 +1,7 @@
 <FORM METHOD="post" action="edit.php" NAME="form">
 <table cellpadding=9 cellspacing=0 >
 <tr valign=top>
-       <td><P><?php  print_string("category") ?>:</td>
+       <td align="right"><P><?php  print_string("category") ?>:</td>
        <td><?php  
            $displaylist = array();
            $parentlist = array();
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("fullname") ?>:</td>
+       <td align="right"><P><?php  print_string("fullname") ?>:</td>
        <td><input type="text" name="fullname" maxlength="254" size=50 value="<?php  p($form->fullname) ?>">
     <?php  helpbutton("coursefullname", get_string("fullname")) ?>
     <?php  if (isset($err["fullname"])) formerr($err["fullname"]); ?>
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("shortname") ?>:</td>
+       <td align="right"><P><?php  print_string("shortname") ?>:</td>
        <td><input type="text" name="shortname" maxlength="15"  size="10" value="<?php  p($form->shortname) ?>">
     <?php  helpbutton("courseshortname", get_string("shortname")) ?>
     <?php  if (isset($err["shortname"])) formerr($err["shortname"]); ?>
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("summary") ?>:</td>
-       <td><TEXTAREA NAME=summary COLS=50 ROWS=10 WRAP=virtual><?php  p($form->summary) ?></TEXTAREA>
-    <?php  helpbutton("text", get_string("helptext")) ?>
-    <?php  if (isset($err["summary"])) formerr($err["summary"]); ?>
+       <td align="right"><P><?php  print_string("summary") ?>:</td>
+       <td><?php 
+        print_textarea($usehtmleditor, 10, 50, 660, 200, "summary", $form->summary);
+        helpbutton("text", get_string("helptext"));
+        if (isset($err["summary"])) formerr($err["summary"]); 
+    ?>
+       </td>
+</tr>
+<tr valign=top>
+       <td align="right"><P><?php  print_string("format") ?>:</td>
+       <td><?php  
+           choose_from_menu ($form->courseformats, "format", "$form->format", "");
+           helpbutton("courseformats", get_string("courseformats"));
+        ?>
+       </td>
+</tr>
+<tr valign=top>
+       <td align="right"><P><?php  print_string("startdate") ?>:</td>
+       <td><?php
+           print_date_selector("startday", "startmonth", "startyear", $form->startdate);
+           helpbutton("coursestartdate", get_string("startdate"));
+       ?></td>
+</tr>
+<tr valign=top>
+       <td align="right"><P><?php  print_string("numberweeks") ?>:</td>
+       <td><?php
+           for ($i=1; $i<=52; $i++) {
+              $sectionmenu[$i] = "$i";
+           }
+           choose_from_menu ($sectionmenu, "numsections", "$form->numsections", "");
+           helpbutton("coursenumsections", get_string("numberweeks"));
+       ?></td>
+</tr>
+<tr valign=top>
+       <td align="right"><P><?php  print_string("groupmode") ?>:</td>
+       <td><?php
+    unset($choices);
+    $choices[NOGROUPS] = get_string("groupsnone");
+    $choices[SEPARATEGROUPS] = get_string("groupsseparate");
+    $choices[VISIBLEGROUPS] = get_string("groupsvisible");
+    choose_from_menu ($choices, "groupmode", $form->groupmode, "");
+    helpbutton("groupmode", get_string("groupmode"));
+
+    echo '&nbsp;&nbsp;&nbsp;&nbsp;';
+    print_string('force');
+    echo ': ';
+    unset($choices);
+    $choices["0"] = get_string("no");
+    $choices["1"] = get_string("yes");
+    choose_from_menu ($choices, "groupmodeforce", $form->groupmodeforce, "");
+    helpbutton("groupmodeforce", get_string("groupmodeforce")); ?>
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("availability") ?>:</td>
+       <td align="right"><P><?php  print_string("availability") ?>:</td>
        <td><?php
     unset($choices);
     $choices["0"] = get_string("courseavailablenot");
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("enrolmentkey") ?>:</td>
+       <td align="right"><P><?php  print_string("enrolmentkey") ?>:</td>
        <td><input type="text" name="password" size=25 value="<?php  p($form->password) ?>">
     <?php  helpbutton("enrolmentkey", get_string("enrolmentkey")) ?>
     <?php  if (isset($err["password"])) formerr($err["password"]); ?>
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("opentoguests") ?>:</td>
+       <td align="right"><P><?php  print_string("opentoguests") ?>:</td>
        <td><?php
     unset($choices);
     $choices["0"] = get_string("guestsno");
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("format") ?>:</td>
-       <td><?php  
-           choose_from_menu ($form->courseformats, "format", "$form->format", "");
-           helpbutton("courseformats", get_string("courseformats"));
-        ?>
-       </td>
-</tr>
-<tr valign=top>
-    <td><P><?php  print_string("newsitemsnumber") ?>:</td>
+    <td align="right"><P><?php  print_string("newsitemsnumber") ?>:</td>
     <td><?php  
        $newsitem = get_string("newsitem");
        $newsitems = get_string("newsitems");
     </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("startdate") ?>:</td>
-       <td><?php
-           print_date_selector("startday", "startmonth", "startyear", $form->startdate);
-           helpbutton("coursestartdate", get_string("startdate"));
-       ?></td>
-</tr>
-<tr valign=top>
-       <td><P><?php  print_string("numberweeks") ?>:</td>
-       <td><?php
-           for ($i=1; $i<=52; $i++) {
-              $sectionmenu[$i] = "$i";
-           }
-           choose_from_menu ($sectionmenu, "numsections", "$form->numsections", "");
-           helpbutton("coursenumsections", get_string("numberweeks"));
-       ?></td>
-</tr>
-<tr valign=top>
-       <td><P><?php  print_string("showrecent") ?>:</td>
+       <td align="right"><P><?php  print_string("showrecent") ?>:</td>
        <td><?php
     unset($choices);
     $choices["0"] = get_string("no");
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("showgrades") ?>:</td>
+       <td align="right"><P><?php  print_string("showgrades") ?>:</td>
        <td><?php
     unset($choices);
     $choices["0"] = get_string("no");
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("showreports") ?>:</td>
+       <td align="right"><P><?php  print_string("showreports") ?>:</td>
        <td><?php
     unset($choices);
     $choices["0"] = get_string("no");
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("maximumupload") ?>:</td>
+       <td align="right"><P><?php  print_string("maximumupload") ?>:</td>
        <td><?php
     $choices = get_max_upload_sizes($CFG->maxbytes);
     choose_from_menu ($choices, "maxbytes", $form->maxbytes, "");
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("wordforteacher") ?>:</td>
+       <td align="right"><P><?php  print_string("wordforteacher") ?>:</td>
        <td><input type="text" name="teacher" maxlength="100" size=25 value="<?php  p($form->teacher) ?>">
        (<?php  print_string("wordforteachereg") ?>) 
     <?php  if (isset($err["teacher"])) formerr($err["teacher"]); ?>
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("wordforteachers") ?>:</td>
+       <td align="right"><P><?php  print_string("wordforteachers") ?>:</td>
        <td><input type="text" name="teachers" maxlength="100" size=25 value="<?php  p($form->teachers) ?>">
        (<?php  print_string("wordforteacherseg") ?>)
     <?php  if (isset($err["teachers"])) formerr($err["teachers"]); ?>
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("wordforstudent") ?>:</td>
+       <td align="right"><P><?php  print_string("wordforstudent") ?>:</td>
        <td><input type="text" name="student" maxlength="100" size=25 value="<?php  p($form->student) ?>">
        (<?php  print_string("wordforstudenteg") ?>) 
     <?php  if (isset($err["student"])) formerr($err["student"]); ?>
        </td>
 </tr>
 <tr valign=top>
-       <td><P><?php  print_string("wordforstudents") ?>:</td>
+       <td align="right"><P><?php  print_string("wordforstudents") ?>:</td>
        <td><input type="text" name="students" maxlength="100" size=25 value="<?php  p($form->students) ?>">
        (<?php  print_string("wordforstudentseg") ?>) 
     <?php  if (isset($err["students"])) formerr($err["students"]); ?>
index 59855a0..b1f2406 100644 (file)
             $form->newsitems = 5;
             $form->showrecent = 1;
             $form->showgrades = 1;
+            $form->groupmode = 0;
+            $form->groupmodeforce = 0;
             $form->category = $category;
             $form->id = "";
             $form->visible = 1;
         $form->courseformats["$courseformat"] = get_string("format$courseformat");
     }
 
+    $usehtmleditor = can_use_html_editor();
+
     $streditcoursesettings = get_string("editcoursesettings");
     $straddnewcourse = get_string("addnewcourse");
     $stradministration = get_string("administration");
 
     print_footer($course);
 
+    if ($usehtmleditor) { 
+        use_html_editor();
+    }
+
     exit;
 
 /// Functions /////////////////////////////////////////////////////////////////
index 469a68e..18a219d 100644 (file)
@@ -6,6 +6,8 @@
     require_once("$CFG->dirroot/mod/resource/lib.php");
 
     $leftwidth = 210;
+    $strgroups       = get_string("groups");
+    $strgroupmy      = get_string("groupmy");
 ?>
 
 <table width="100%" border="0" cellspacing="5" cellpadding="5">
       <?php 
       $moddata[]="<a title=\"".get_string("listofallpeople")."\" href=\"../user/index.php?id=$course->id\">".get_string("participants")."</a>";
       $modicon[]="<img src=\"$CFG->pixpath/i/users.gif\" height=16 width=16 alt=\"\">";
+
+      if ($course->groupmode or !$course->groupmodeforce) {
+          if (isteacheredit($course->id) or $course->groupmode == VISIBLEGROUPS) {
+              $moddata[]="<a title=\"$strgroups\" href=\"groups.php?id=$course->id\">$strgroups</a>";
+          } else if ($currentgroup = get_current_group($course->id)) {
+              $moddata[]="<a title=\"$strgroupmy\" href=\"group.php?id=$course->id\">$strgroupmy</a>";
+          }
+          $modicon[]="<img src=\"$CFG->pixpath/i/group.gif\" height=16 width=16 alt=\"\">";
+      }
+
       $fullname = fullname($USER, true);
       $editmyprofile = "<a title=\"$fullname\" href=\"../user/edit.php?id=$USER->id&course=$course->id\">".
                         get_string("editmyprofile")."</A>";
index 31a6cc6..e44e351 100644 (file)
@@ -34,6 +34,8 @@
     $stractivities    = get_string("activities");
     $strshowalltopics = get_string("showalltopics");
     $strtopic         = get_string("topic");
+    $strgroups       = get_string("groups");
+    $strgroupmy      = get_string("groupmy");
     if (isediting($course->id)) { 
         $strstudents = moodle_strtolower($course->students);
         $strtopichide = get_string("topichide", "", $strstudents);
 /// Links to people
     $moddata[]="<a title=\"".get_string("listofallpeople")."\" href=\"../user/index.php?id=$course->id\">".get_string("participants")."</a>";
     $modicon[]="<img src=\"$CFG->pixpath/i/users.gif\" height=16 width=16 alt=\"\">";
+
+    if ($course->groupmode or !$course->groupmodeforce) {
+        if (isteacheredit($course->id) or $course->groupmode == VISIBLEGROUPS) {
+            $moddata[]="<a title=\"$strgroups\" href=\"groups.php?id=$course->id\">$strgroups</a>";
+        } else if ($currentgroup = get_current_group($course->id)) {
+            $moddata[]="<a title=\"$strgroupmy\" href=\"group.php?id=$course->id\">$strgroupmy</a>";
+        }
+        $modicon[]="<img src=\"$CFG->pixpath/i/group.gif\" height=16 width=16 alt=\"\">";
+    }
+
     $fullname = fullname($USER, true);
     $editmyprofile = "<a title=\"$fullname\" href=\"../user/edit.php?id=$USER->id&course=$course->id\">".get_string("editmyprofile")."</a>";
     if ($USER->description) {
index cb8442d..0841572 100644 (file)
@@ -24,6 +24,8 @@
     $stractivities   = get_string("activities");
     $strshowallweeks = get_string("showallweeks");
     $strweek         = get_string("week");
+    $strgroups       = get_string("groups");
+    $strgroupmy      = get_string("groupmy");
     if (isediting($course->id)) {
         $strstudents = moodle_strtolower($course->students);
         $strweekhide = get_string("weekhide", "", $strstudents);
 /// Links to people
     $moddata[]="<a title=\"".get_string("listofallpeople")."\" href=\"../user/index.php?id=$course->id\">".get_string("participants")."</a>";
     $modicon[]="<img src=\"$CFG->pixpath/i/users.gif\" height=16 width=16 alt=\"\">";
+
+    if ($course->groupmode or !$course->groupmodeforce) {
+        if (isteacheredit($course->id) or $course->groupmode == VISIBLEGROUPS) {
+            $moddata[]="<a title=\"$strgroups\" href=\"groups.php?id=$course->id\">$strgroups</a>";
+        } else if ($currentgroup = get_current_group($course->id)) {
+            $moddata[]="<a title=\"$strgroupmy\" href=\"group.php?id=$course->id\">$strgroupmy</a>";
+        }
+        $modicon[]="<img src=\"$CFG->pixpath/i/group.gif\" height=16 width=16 alt=\"\">";
+    }
+
     $fullname = fullname($USER, true);
     $editmyprofile = "<a title=\"$fullname\" href=\"../user/edit.php?id=$USER->id&course=$course->id\">".get_string("editmyprofile")."</a>";
     if ($USER->description) {
diff --git a/course/group.php b/course/group.php
new file mode 100644 (file)
index 0000000..a9ee50e
--- /dev/null
@@ -0,0 +1,103 @@
+<?php // $Id$
+
+/// Shows current group, and allows editing of the group 
+/// icon and other settings related to that group
+
+       require_once('../config.php');
+       require_once('lib.php');
+
+    require_variable($id);        // Course id
+    optional_variable($group);    // Optionally look at other groups
+    optional_variable($edit);     // Turn editing on and off
+
+    if (! $course = get_record('course', 'id', $id) ) {
+        error("That's an invalid course id");
+    }
+
+    require_login($course->id);
+
+
+    if ($group and (isteacheredit($course->id) or $course->groupmode == VISIBLEGROUPS)) {
+        if (! $group = get_record("group", "id", $group)) {
+            error('Specified group could not be found!', "groups.php?id=$course->id");
+        }
+    } else if (! $group = get_current_group($course->id, 'full')) {
+        error('You are not currently in a group!', "view.php?id=$course->id");
+    }
+
+    if (isteacheredit($course->id) or (isteacher($course->id) and ismember($group->id) ) ) {
+        if (isset($edit)) {
+            if ($edit == "on") {
+                $USER->groupediting = true;
+            } else if ($edit == "off") {
+                $USER->groupediting = false;
+            }
+        }
+    } else {
+        $USER->groupediting = false;
+    }
+
+
+/// Print the headers of the page
+
+    $strgroup = get_string('group');
+    $strgroups = get_string('groups');
+    $loggedinas = "<p class=\"logininfo\">".user_login_string($course, $USER)."</p>";
+
+    if (isteacheredit($course->id) or $course->groupmode == VISIBLEGROUPS) {
+        print_header("$strgroup : $group->name", "$course->fullname", 
+                     "<a href=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</a> 
+                      -> <a href=\"groups.php?id=$course->id\">$strgroups</a> -> $group->name", 
+                      "", "", true, update_group_button($course->id), $loggedinas);
+    } else {
+        print_header("$strgroup : $group->name", "$course->fullname", 
+                     "<a href=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</a> 
+                      -> $strgroup -> $group->name", "", "", true, "", $loggedinas);
+    }
+
+
+/// Display the current group information
+
+    if ($USER->groupediting) {          // Make an editing form for group information
+        print_heading($group->name);
+        echo '<div align="center">';
+        print_group_picture($group->id, $course->id, $group->picture, true, false, false);
+        echo '</div>';
+        print_simple_box($group->description, 'center', '50%');
+
+    } else {                            // Just display the information 
+        print_heading($group->name);
+        echo '<div align="center">';
+        print_group_picture($group->id, $course->id, $group->picture, true, false, false);
+        echo '</div>';
+        print_simple_box($group->description, 'center', '50%');
+    }
+
+    echo '<br />';
+
+    if ($users = get_users_in_group($group->id)) {
+        $table->align = array('left', 'left');
+        $table->width = array('100', '*');
+        foreach ($users as $user) {
+            if (!$lastaccess = get_field("user_students", "timeaccess", "userid", $user->id, "course", $course->id)) {
+                if (!$lastaccess = get_field("user_teachers", "timeaccess", "userid", $user->id, "course", $course->id)) {
+                    $datestring = get_string("never");
+                }
+            }
+            if ($lastaccess) {
+                $datestring = userdate($lastaccess)."&nbsp (".format_time(time() - $lastaccess).")";
+            }
+            $information = '<p><b>'.fullname($user).'</b></p>'.get_string("lastaccess").": $datestring";
+            $table->data[] = array(print_user_picture($user->id, $course->id, $user->picture, true, true), $information);
+        }
+        print_table($table);
+    } else {
+        print_heading(get_string('nousersyet'));
+    }
+
+
+/// Finish off the page
+
+    print_footer($course);
+
+?>
diff --git a/course/groups-edit.html b/course/groups-edit.html
new file mode 100755 (executable)
index 0000000..ee327f3
--- /dev/null
@@ -0,0 +1,170 @@
+<script language="JavaScript">
+<!-- Begin
+<?php 
+    foreach ($listmembers as $groupid => $listmember) {
+        echo "group$groupid = new Object();\n";
+        $useridstring = "group$groupid.userid = new Array(";
+        $usernamestring = "group$groupid.username = new Array(";
+        $max = count($listmember);
+        $count = 0;
+        foreach ($listmember as $userid => $username) {
+            $count++;
+            $useridstring .= "\"$userid\"";
+            $usernamestring .= "\"$username\"";
+            if ($count < $max) {
+                $useridstring .= ', ';
+                $usernamestring .= ', ';
+            }
+        }
+        $useridstring .= ");\n";
+        $usernamestring .= ");\n";
+
+        echo $useridstring;
+        echo $usernamestring;
+    }
+?>
+
+function updateGroup() {
+    document.form1.groupid.value = document.form2.groups.value;
+    document.form3.groupid.value = document.form2.groups.value;
+}
+
+
+function updateMembers(selectgroup) {
+    eval('group=group'+selectgroup.value); 
+
+    username = group.username;
+    userid = group.userid;
+
+    document.form3['members[]'].length = username.length;
+
+    for (i=0;i<username.length;i++) {
+        document.form3['members[]'].options[i].value = userid[i];
+        document.form3['members[]'].options[i].text  = username[i];
+    }
+
+    updateGroup();
+}
+
+function userWindow(selectuser) {
+    num = 0;
+    for (var i=0; i<selectuser.options.length; i++) {
+        if (selectuser.options[i].selected) {
+            num++;
+            user = selectuser.options[i].value;
+            openpopup('/user/view.php?id='+user+'&course=<?php echo $courseid ?>','userinfo'+num,'','');
+        }
+    }
+    return false;
+}
+
+function groupWindow(selectgroup) {
+    num = 0;
+    for (var i=0; i<selectgroup.options.length; i++) {
+        if (selectgroup.options[i].selected) {
+            num++;
+            group = selectgroup.options[i].value;
+            openpopup('/course/group.php?id=<?php echo $courseid ?>&group='+group,'groupinfo'+num,'','');
+        }
+    }
+    return false;
+}
+
+
+// end hiding script -->
+</script>
+
+
+
+  <table border="0" cellspacing="2" cellpadding="10" align="center" class="generalbox">
+    <tr>
+      <td width="33%" align="center" class="generaltableheader"><?php p($strgroupnonmembers) ?></td>
+      <td width="33%" align="center" class="generaltableheader"><?php p($strgroups) ?></td>
+      <td width="33%" align="center" class="generaltableheader"><?php p($strgroupmembersselected) ?></td>
+    </tr>
+    <tr align="center" valign="top">
+      <td class="generalboxcontent"><p>
+        <form name="form1" id="form1" method="post" action="groups.php">
+          <input type="hidden" name="id" value="<?php p($course->id) ?>" />
+          <input type="hidden" name="groupid" value="<?php p($selectedgroup) ?>" />
+          <select name="nonmembers[]" size="15" multiple="multiple">
+            <?php 
+                if (!empty($nonmembers)) {
+                    foreach ($nonmembers as $id => $nonmembername) {
+                        echo "<option value=\"$id\">$nonmembername</option>";
+                    }
+                }
+            ?>
+          </select>
+          </p>
+          <p>
+            <input type="submit" name="nonmembersadd" value="<?php p($strgroupaddusers) ?> -&gt;" 
+                   onclick="updateGroup()" />
+          </p>
+          <p>
+            <input type="submit" name="nonmembersrandom" value="<?php p($strgrouprandomassign) ?> -&gt;" />
+          </p>
+          <p>
+            <input type="submit" name="nonmembersinfo" value="<?php p($strgroupinfopeople) ?>" 
+                   onclick="return userWindow(document.form1['nonmembers[]']);" />
+          </p>
+        </form>
+      </td>
+      <td class="generalboxcontent"><p>
+        <form name="form2" id="form2" method="post" action="groups.php">
+          <input type="hidden" name="id" value="<?php p($course->id) ?>" />
+          <select name="groups" size="15" onChange="updateMembers(this)">
+            <?php 
+                if (!empty($listgroups)) {
+                    foreach ($listgroups as $id => $listgroup) {
+                        $selected = '';
+                        if ($id == $selectedgroup) {
+                            $selected = 'selected="selected"';
+                        }
+                        echo "<option $selected value=\"$id\">$listgroup</option>";
+                    }
+                }
+            ?>
+          </select>
+        </p>
+        <p>
+          <input type="submit" name="groupsinfo" value="<?php p($strgroupinfo) ?>" 
+                 onclick="return groupWindow(document.form2.groups);"/>
+        </p>
+        <p>
+          <input type="submit" name="groupsremove" value="<?php p($strgroupremove) ?>" />
+        </p>
+        <p>
+          <input name="newgroupname" type="text" size="10" />
+          <input type="submit" name="groupsadd" value="<?php p($strgroupadd) ?>" />
+        </p>
+        </form>
+      </td>
+
+
+      <td class="generalboxcontent"><p>
+        <form name="form3" id="form3" method="post" action="groups.php">
+          <input type="hidden" name="id" value="<?php p($course->id) ?>" />
+          <input type="hidden" name="groupid" value="<?php p($selectedgroup) ?>" />
+          <select name="members[]" size="15" multiple="multiple">
+            <?php 
+                if (!empty($members)) {
+                    foreach ($members as $id => $membername) {
+                        echo "<option value=\"$id\">$membername</option>";
+                    }
+                }
+            ?>
+          </select>
+        </p>
+        <p>
+          <input type="submit" name="membersinfo" value="<?php p($strgroupinfomembers) ?>"
+                 onclick="return userWindow(document.form3['members[]']);" />
+        </p>
+        <p>
+          <input type="submit" name="membersremove" value="<?php p($strgroupremovemembers) ?>" 
+                 onclick="updateGroup()" />
+        </p>
+        </form>
+      </td>
+    </tr>
+  </table>
diff --git a/course/groups-summary.html b/course/groups-summary.html
new file mode 100644 (file)
index 0000000..d8f97da
--- /dev/null
@@ -0,0 +1,19 @@
+<table align="center" class="generalbox">
+ <tr>
+   <td valign="top"><?php echo $t->picture ?></td>
+   <td><p style="font-size: larger"><?php echo $t->name ?></p>
+   <p><?php echo $t->description ?></p>
+   <p><ul><?php 
+      if ($t->users) {
+          foreach ($t->users as $user) {
+              echo '<li style="font-size: x-small">';
+              echo "<a href=\"$CFG->wwwroot/user/view.php?id=$user->id&course=$t->courseid\">$user->fullname</a>";
+              echo '</li>';
+          }
+      }
+      ?>
+   </ul></p>
+   </td>
+ </tr>
+</table>
+<br />
diff --git a/course/groups.php b/course/groups.php
new file mode 100644 (file)
index 0000000..73e5839
--- /dev/null
@@ -0,0 +1,211 @@
+<?php // $Id$
+
+/// Shows all the groups in a course.  
+/// Editing teachers see a nifty interface for defining groups
+
+       require_once('../config.php');
+       require_once('lib.php');
+
+    require_variable($id);        // Course id
+    optional_variable($edit);     // Turn editing on and off
+
+    if (! $course = get_record('course', 'id', $id) ) {
+        error("That's an invalid course id");
+    }
+
+    require_login($course->id);
+
+    if (!isteacheredit($course->id) and $course->groupmode != VISIBLEGROUPS) {
+        redirect("group.php?id=$course->id");   // Not allowed to see all groups
+    }
+
+    if (isteacheredit($course->id)) {
+        if (isset($edit)) {
+            if ($edit == "on") {
+                $USER->groupsediting = true;
+            } else if ($edit == "off") {
+                $USER->groupsediting = false;
+            }
+        }
+    } else {
+        $USER->groupsediting = false;
+    }
+
+
+/// Print the header of the page
+
+    $strgroup = get_string('group');
+    $strgroups = get_string('groups');
+    $loggedinas = "<p class=\"logininfo\">".user_login_string($course, $USER)."</p>";
+
+    print_header("$course->shortname: $strgroups", "$course->fullname", 
+                 "<a href=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</a> 
+                  -> $strgroups", "", "", true, update_groups_button($course->id), $loggedinas);
+
+
+/// Get the current list of groups
+
+    $groups = get_groups($course->id);
+
+    if (!$USER->groupsediting) {         /// Display an overview of all groups
+        if (!$groups) {
+            print_heading(get_string('groupsnone'));
+
+        } else {  
+            $isteacher = isteacher($course->id);
+            foreach ($groups as $group) {
+                $t = $group;
+                $t->picture = print_group_picture($group->id, $course->id, $group->picture, true, true, true);
+                if ($t->users = get_users_in_group($group->id)) {
+                    foreach ($t->users as $key => $user) {
+                        $t->users[$key]->fullname = fullname($user, $isteacher);
+                    }
+                }
+                include('groups-summary.html');
+            }
+        }
+        print_footer($course);
+        exit;
+    }
+
+
+/// We are in editing mode.  First, process any inputs there may be.
+
+    if ($data = data_submitted()) {
+
+        if (!empty($data->nonmembersadd)) {            /// Add people to a group
+            if (!empty($data->nonmembers) and !empty($data->groupid)) {
+                foreach ($data->nonmembers as $userid) {
+                    if (!user_group($courseid, $userid)) {  // Just to make sure (another teacher could be editing)
+                        $record->groupid = $data->groupid;
+                        $record->userid = $userid;
+                        if (!insert_record('group_members', $record)) {
+                            notify("Error occurred while adding user $userid to group $data->groupid");
+                        }
+                    }
+                }
+            }
+            $selectedgroup = $data->groupid;
+
+
+        } else if (!empty($data->nonmembersrandom)) {  /// Add all non members to groups
+            notify("Random adding of people into groups is not functional yet.");
+
+        } else if (!empty($data->nonmembersinfo)) {    /// Return info about the selected users
+            notify("You must turn Javascript on");
+
+        } else if (!empty($data->groupsremove)) {      /// Remove a group, all members become nonmembers
+            if (!empty($data->groups)) {
+                delete_records("group", "id", $data->groups);
+                delete_records("group_members", "groupid", $data->groups);
+                unset($groups[$data->groups]);
+            }
+            
+
+        } else if (!empty($data->groupsinfo)) {        /// Display full info for a group
+            notify("You must turn Javascript on");
+
+        } else if (!empty($data->groupsadd)) {         /// Create a new group
+            if (!empty($data->newgroupname)) {
+                $newgroup->name = $data->newgroupname;
+                $newgroup->courseid = $course->id;
+                $newgroup->lang = current_language();
+                if (!insert_record("group", $newgroup)) {
+                    notify("Could not insert the new group '$newgroup->name'");
+                }
+                $groups = get_groups($course->id);
+            }
+
+        } else if (!empty($data->membersremove)) {     /// Remove selected people from a particular group
+
+            if (!empty($data->members) and !empty($data->groupid)) {
+                foreach ($data->members as $userid) {
+                    delete_records('group_members', 'userid', $userid, "groupid", $data->groupid);
+                }
+            }
+            $selectedgroup = $data->groupid;
+
+        } else if (!empty($data->membersinfo)) {       /// Return info about the selected users
+            notify("You must turn Javascript on");
+
+        }
+    }
+
+    $SESSION->fullnamedisplay = 'firstname lastname';
+
+
+/// Calculate data ready to create the editing interface
+
+    $strgroupnonmembers = get_string('groupnonmembers');
+    $strgroupmembersselected = get_string('groupmembersselected');
+    $strgroupremovemembers = get_string('groupremovemembers');
+    $strgroupinfomembers = get_string('groupinfomembers');
+    $strgroupadd = get_string('groupadd');
+    $strgroupremove = get_string('groupremove');
+    $strgroupinfo = get_string('groupinfo');
+    $strgroupinfopeople = get_string('groupinfopeople');
+    $strgrouprandomassign = get_string('grouprandomassign');
+    $strgroupaddusers = get_string('groupaddusers');
+    $courseid = $course->id;
+    $listgroups = array();
+    $listmembers = array();
+    $nonmembers = array();
+    $groupcount = count($groups);
+
+
+/// First, get everyone into the nonmembers array
+
+    if ($students = get_course_students($course->id)) {
+        foreach ($students as $student) {
+            $nonmembers[$student->id] = fullname($student, true);
+        }
+        unset($students);
+    }
+
+    if ($teachers = get_course_teachers($course->id)) {
+        foreach ($teachers as $teacher) {
+            $prefix = '- ';
+            if (isteacheredit($course->id, $user->id)) {
+                $prefix = '# ';
+            }
+            $nonmembers[$teacher->id] = $prefix.fullname($teacher, true);
+        }
+        unset($teachers);
+    }
+
+/// Pull out all the members into little arrays
+
+    if ($groups) {
+        foreach ($groups as $group) {
+            $countusers = 0;
+            $listmembers[$group->id] = array();
+            if ($groupusers = get_users_in_group($group->id)) {
+                foreach ($groupusers as $groupuser) {
+                    $listmembers[$group->id][$groupuser->id] = $nonmembers[$groupuser->id];
+                    unset($nonmembers[$groupuser->id]);
+                    $countusers++;
+                }
+                asort($listmembers[$group->id]);
+            }
+            $listgroups[$group->id] = $group->name." ($countusers)";
+        }
+        asort($listgroups);
+    }
+
+    asort($nonmembers);
+
+    if (empty($selectedgroup)) {    // Choose the first group by default
+        if ($selectedgroup = array_shift(array_keys($listgroups))) {
+            $members = $listmembers[$selectedgroup];
+        }
+    } else {
+        $members = $listmembers[$selectedgroup];
+    }
+
+/// Print out the complete form
+
+    include('groups-edit.html');
+
+    print_footer($course);
+
+?>
index bc28254..13a2eec 100644 (file)
     if (isadmin()) {
         if (isset($_GET['edit'])) {
             if ($edit == "on") {
-                $USER->editing = true;
+                $USER->categoriesediting = true;
             } else if ($edit == "off") {
-                $USER->editing = false;
+                $USER->categoriesediting = false;
             }
         }
     }
 
-    $adminediting = (isadmin() and !empty($USER->editing));
+    $adminediting = (isadmin() and !empty($USER->categoriesediting));
 
 
 /// Unless it's an editing admin, just print the regular listing of courses/categories
index f8e74f1..94041ef 100644 (file)
@@ -945,6 +945,13 @@ function get_user_info_from_db($field, $value) {
         }
     }
 
+    if ($groups = get_records("group_members", "userid", $user->id)) {
+        foreach ($groups as $group) {
+            $courseid = get_field("group", "courseid", "id", $group->id);
+            $user->groupmember[$courseid] = $group->id;
+        }
+    }
+
     return $user;
 }
 
@@ -1418,6 +1425,69 @@ function get_users_longtimenosee($cutofftime) {
                                AND timeaccess < '$cutofftime' ");
 }
 
+/**
+* Returns an array of group objects that the user is a member of
+* in the given course.  If userid isn't specified, then return a 
+* list of all groups in the course.
+* 
+* @param       type description
+*/
+function get_groups($courseid, $userid=0) {
+    global $CFG;
+
+    if ($userid) {
+        $userselect = "AND m.groupid = g.id AND m.userid = '$userid'";
+    }
+
+    return get_records_sql("SELECT DISTINCT g.*
+                              FROM {$CFG->prefix}group g,
+                                   {$CFG->prefix}group_members m 
+                             WHERE g.courseid = '$courseid' $userselect ");
+}
+
+
+/**
+* Returns an array of user objects
+* 
+* @param       type description
+*/
+function get_users_in_group($groupid) {
+    global $CFG;
+    return get_records_sql("SELECT DISTINCT u.*
+                              FROM {$CFG->prefix}user u,
+                                   {$CFG->prefix}group_members m 
+                             WHERE m.groupid = '$groupid'
+                               AND m.userid = u.id");
+}
+
+/**
+* An efficient way of finding all the users who aren't in groups yet
+* 
+* @param       type description
+*/
+function get_users_not_in_group($courseid) {
+    global $CFG;
+
+    return array();     /// XXX TO BE DONE
+}
+
+/**
+* Returns the user's group in a particular course
+* 
+* @param       type description
+*/
+function user_group($courseid, $userid) {
+    global $CFG;
+
+    return get_record_sql("SELECT g.*
+                             FROM {$CFG->prefix}group g,
+                                  {$CFG->prefix}group_members m
+                             WHERE g.courseid = '$courseid'
+                               AND g.id = m.groupid
+                               AND m.userid = '$userid'");
+}
+
+
 
 
 /// OTHER SITE AND COURSE FUNCTIONS /////////////////////////////////////////////
index 7bbbd34..a6dd1a9 100644 (file)
@@ -560,6 +560,39 @@ function main_upgrade($oldversion=0) {
         table_column("course", "", "showreports", "integer", "4", "unsigned", "0", "", "maxbytes");
     }
 
+    if ($oldversion < 2003121600) {
+        modify_database("", "CREATE TABLE `prefix_group` (
+                                `id` int(10) unsigned NOT NULL auto_increment,
+                                `courseid` int(10) unsigned NOT NULL default '0',
+                                `name` varchar(254) NOT NULL default '',
+                                `description` text NOT NULL,
+                                `lang` varchar(10) NOT NULL default 'en',
+                                `picture` int(10) unsigned NOT NULL default '0',
+                                `timecreated` int(10) unsigned NOT NULL default '0',
+                                `timemodified` int(10) unsigned NOT NULL default '0',
+                                PRIMARY KEY  (`id`),
+                                KEY `courseid` (`courseid`)
+                              ) TYPE=MyISAM COMMENT='Each record is a group in a course.'; ");
+
+        modify_database("", "CREATE TABLE `prefix_group_members` (
+                                `id` int(10) unsigned NOT NULL auto_increment,
+                                `groupid` int(10) unsigned NOT NULL default '0',
+                                `userid` int(10) unsigned NOT NULL default '0',
+                                `timeadded` int(10) unsigned NOT NULL default '0',
+                                PRIMARY KEY  (`id`),
+                                KEY `groupid` (`groupid`)
+                              ) TYPE=MyISAM COMMENT='Lists memberships of users in groups'; ");
+    }
+
+    if ($oldversion < 2003121800) {
+        table_column("course", "modinfo", "modinfo", "longtext", "", "", "");
+    }
+
+    if ($oldversion < 2003122600) {
+        table_column("course", "", "groupmode", "integer", "4", "unsigned", "0", "", "showreports");
+        table_column("course", "", "groupmodeforce", "integer", "4", "unsigned", "0", "", "groupmode");
+    }
+
     return $result;
 
 }
index 05e2fb0..0ecab17 100644 (file)
@@ -37,7 +37,7 @@ CREATE TABLE `prefix_course` (
   `summary` text NOT NULL,
   `format` varchar(10) NOT NULL default 'topics',
   `showgrades` smallint(2) unsigned NOT NULL default '1',
-  `modinfo` text NOT NULL,
+  `modinfo` longtext NOT NULL,
   `newsitems` smallint(5) unsigned NOT NULL default '1',
   `teacher` varchar(100) NOT NULL default 'Teacher',
   `teachers` varchar(100) NOT NULL default 'Teachers',
@@ -51,6 +51,9 @@ CREATE TABLE `prefix_course` (
   `maxbytes` int(10) unsigned NOT NULL default '0',
   `showreports` int(4) unsigned NOT NULL default '0',
   `visible` int(10) unsigned NOT NULL default '1',
+  `groupmode` int(4) unsigned NOT NULL default '0',
+  `groupmodeforce` int(4) unsigned NOT NULL default '0',
+  `showreports` int(4) unsigned NOT NULL default '0',
   `timecreated` int(10) unsigned NOT NULL default '0',
   `timemodified` int(10) unsigned NOT NULL default '0',
   PRIMARY KEY  (`id`),
@@ -124,10 +127,44 @@ CREATE TABLE `prefix_course_sections` (
   `summary` text NOT NULL,
   `sequence` text NOT NULL default '',
   `visible` tinyint(1) NOT NULL default '1',
-  PRIMARY KEY  (`id`)
+  PRIMARY KEY  (`id`),
+  KEY `coursesection` (course,section)
 ) TYPE=MyISAM;
 # --------------------------------------------------------
 
+#
+# Table structure for table `group`
+#
+
+CREATE TABLE `prefix_group` (
+  `id` int(10) unsigned NOT NULL auto_increment,
+  `courseid` int(10) unsigned NOT NULL default '0',
+  `name` varchar(254) NOT NULL default '',
+  `description` text NOT NULL,
+  `lang` varchar(10) NOT NULL default 'en',
+  `picture` int(10) unsigned NOT NULL default '0',
+  `timecreated` int(10) unsigned NOT NULL default '0',
+  `timemodified` int(10) unsigned NOT NULL default '0',
+  PRIMARY KEY  (`id`),
+  KEY `courseid` (`courseid`)
+) TYPE=MyISAM COMMENT='Each record is a group in a course.';
+# --------------------------------------------------------
+
+#
+# Table structure for table `group_members`
+#
+
+CREATE TABLE `prefix_group_members` (
+  `id` int(10) unsigned NOT NULL auto_increment,
+  `groupid` int(10) unsigned NOT NULL default '0',
+  `userid` int(10) unsigned NOT NULL default '0',
+  `timeadded` int(10) unsigned NOT NULL default '0',
+  PRIMARY KEY  (`id`),
+  KEY `groupid` (`groupid`)
+) TYPE=MyISAM COMMENT='Lists memberships of users to groups';
+# --------------------------------------------------------
+
+
 #
 # Table structure for table `log`
 #
index 1aaddf7..b60be73 100644 (file)
@@ -310,6 +310,36 @@ function main_upgrade($oldversion=0) {
     }
 
 
+    if ($oldversion < 2003121600) {
+        execute_sql("CREATE TABLE {$CFG->prefix}group (
+                        id SERIAL PRIMARY KEY,
+                        courseid integer NOT NULL default '0',
+                        name varchar(255) NOT NULL default '',
+                        description text,
+                        lang varchar(10) NOT NULL default '',
+                        picture integer NOT NULL default '0',
+                        timecreated integer NOT NULL default '0',
+                        timemodified integer NOT NULL default '0'
+                     )");
+    
+        execute_sql("CREATE INDEX {$CFG->prefix}group_idx ON {$CFG->prefix}group (courseid) ");
+    
+        execute_sql("CREATE TABLE {$CFG->prefix}group_members (
+                        id SERIAL PRIMARY KEY,
+                        groupid integer NOT NULL default '0',
+                        userid integer NOT NULL default '0',
+                        timeadded integer NOT NULL default '0'
+                     )");
+      
+        execute_sql("CREATE INDEX {$CFG->prefix}group_members_idx ON {$CFG->prefix}group_members (groupid) ");
+    }
+
+    if ($oldversion < 2003122600) {
+        table_column("course", "", "groupmode", "integer", "4", "unsigned", "0", "", "visible");
+        table_column("course", "", "groupmodeforce", "integer", "4", "unsigned", "0", "", "groupmode");
+    }
+
     return $result;
 }
+
 ?>    
index d7f9feb..82968a0 100644 (file)
@@ -29,6 +29,8 @@ CREATE TABLE prefix_course (
    maxbytes integer NOT NULL default '0',
    showreports integer NOT NULL default '0',
    visible integer NOT NULL default '1',
+   groupmode integer NOT NULL default '0',
+   groupmodeforce integer NOT NULL default '0',
    timecreated integer NOT NULL default '0',
    timemodified integer NOT NULL default '0'
 );
@@ -77,6 +79,28 @@ CREATE TABLE prefix_course_sections (
    visible integer NOT NULL default '1'
 );
 
+CREATE TABLE prefix_group (
+   id SERIAL PRIMARY KEY,
+   courseid integer NOT NULL default '0',
+   name varchar(255) NOT NULL default '',
+   description text,
+   lang varchar(10) NOT NULL default '',
+   picture integer NOT NULL default '0',
+   timecreated integer NOT NULL default '0',
+   timemodified integer NOT NULL default '0'
+);
+
+CREATE INDEX prefix_group_idx ON prefix_group (courseid);
+
+CREATE TABLE prefix_group_members (
+   id SERIAL PRIMARY KEY,
+   groupid integer NOT NULL default '0',
+   userid integer NOT NULL default '0',
+   timeadded integer NOT NULL default '0'
+);
+
+CREATE INDEX prefix_group_members_idx ON prefix_group_members (groupid);
+
 CREATE TABLE prefix_log (
    id SERIAL PRIMARY KEY,
    time integer NOT NULL default '0',
index 98cfe6a..804fadb 100644 (file)
 //                                                                       //
 ///////////////////////////////////////////////////////////////////////////
 
+/// CONSTANTS /////////////////////////////////////////////////////////////
+
+define('NOGROUPS', 0);   
+define('SEPARATEGROUPS', 1);
+define('VISIBLEGROUPS', 2);
+
 
 /// PARAMETER HANDLING ////////////////////////////////////////////////////
 
@@ -504,7 +510,11 @@ function fullname($user, $override=false) {
 /// or language.  'override' will force both names
 /// to be used even if system settings specify one.
 
-    global $CFG;
+    global $CFG, $SESSION;
+
+    if (!empty($SESSION->fullnamedisplay)) {
+        $CFG->fullnamedisplay = $SESSION->fullnamedisplay;
+    }
 
     if ($CFG->fullnamedisplay == 'firstname lastname') {
         return "$user->firstname $user->lastname";
@@ -865,6 +875,76 @@ function remove_course_contents($courseid, $showfeedback=true) {
 }
 
 
+/// GROUPS /////////////////////////////////////////////////////////
+
+/**
+* Returns a boolean: is the user a member of the given group?
+* 
+* @param       type description
+*/
+function ismember($groupid, $userid=0) {
+    global $USER;
+
+    if (!$userid) {
+        return !empty($USER->groupmember[$groupid]);
+    }
+
+    return record_exists("group_members", "groupid", $groupid, "userid", $userid);
+}
+
+/**
+* For a given course, and possibly course module, determine 
+* what the current default groupmode is:
+* NOGROUPS, SEPARATEGROUPS or VISIBLEGROUPS
+* 
+* @param       type description
+*/
+function groupmode($course, $cm=null) {
+
+    if ($cm and !$course->groupmodeforce) {
+        return $cm->groupmode;
+    }
+    return $course->groupmode;
+}
+
+
+/**
+* Sets the current group in the session variable
+* 
+* @param       type description
+*/
+function set_current_group($courseid, $groupid) {
+    global $SESSION;
+
+    return $SESSION->currentgroup[$courseid] = $groupid;
+}
+
+
+/**
+* Gets the current group for the current user as an id or an object
+* 
+* @param       type description
+*/
+function get_current_group($courseid, $full=false) {
+    global $SESSION, $USER;
+
+    if (empty($SESSION->currentgroup[$courseid])) {
+        if (empty($USER->groupmember[$courseid])) {
+            return false;
+        } else {
+            $SESSION->currentgroup[$courseid] = $USER->groupmember[$courseid];
+        }
+    }
+
+    if ($full) {
+        return get_record('group', 'id', $SESSION->currentgroup[$courseid]);
+    } else {
+        return $SESSION->currentgroup[$courseid];
+    }
+}
+
+
+
 /// CORRESPONDENCE  ////////////////////////////////////////////////
 
 function email_to_user($user, $from, $subject, $messagetext, $messagehtml="", $attachment="", $attachname="") {
index c548b1c..d88e8e2 100644 (file)
@@ -1069,7 +1069,7 @@ function print_file_picture($path, $courseid=0, $height="", $width="", $link="")
 }
 
 function print_user_picture($userid, $courseid, $picture, $large=false, $returnstring=false, $link=true) {
-    global $CFG, $THEME;
+    global $CFG;
 
     if ($link) {
         $output = "<a href=\"$CFG->wwwroot/user/view.php?id=$userid&amp;course=$courseid\">";
@@ -1106,6 +1106,44 @@ function print_user_picture($userid, $courseid, $picture, $large=false, $returns
     }
 }
 
+function print_group_picture($groupid, $courseid, $picture, $large=false, $returnstring=false, $link=true) {
+    global $CFG;
+
+    if ($link) {
+        $output = "<a href=\"$CFG->wwwroot/course/group.php?id=$courseid&group=$groupid\">";
+    } else {
+        $output = "";
+    }
+    if ($large) {
+        $file = "f1";
+        $size = 100;
+    } else {
+        $file = "f2";
+        $size = 35;
+    }
+    if ($picture) {  // Print custom group picture
+        if ($CFG->slasharguments) {        // Use this method if possible for better caching
+            $output .= "<img align=\"absmiddle\" src=\"$CFG->wwwroot/user/pixgroup.php/$groupid/$file.jpg\"".
+                       " border=\"0\" width=\"$size\" height=\"$size\" alt=\"\" />";
+        } else {
+            $output .= "<img align=\"absmiddle\" src=\"$CFG->wwwroot/user/pixgroup.php?file=/$groupid/$file.jpg\"".
+                       " border=\"0\" width=\"$size\" height=\"$size\" alt=\"\" />";
+        }
+    } else {         // Print default group pictures (use theme version if available)
+        $output .= "<img align=\"absmiddle\" src=\"$CFG->pixpath/g/$file.png\"".
+                   " border=\"0\" width=\"$size\" height=\"$size\" alt=\"\" />";
+    }
+    if ($link) {
+        $output .= "</a>";
+    }
+
+    if ($returnstring) {
+        return $output;
+    } else {
+        echo $output;
+    }
+}
+
 function print_table($table) {
 // Prints a nicely formatted table.
 // $table is an object with several properties.
@@ -1404,7 +1442,7 @@ function update_category_button($categoryid) {
     global $CFG, $USER;
 
     if (iscreator()) {
-        if (!empty($USER->editing)) {
+        if (!empty($USER->categoryediting)) {
             $string = get_string("turneditingoff");
             $edit = "off";
         } else {
@@ -1423,7 +1461,7 @@ function update_categories_button() {
     global $CFG, $USER;
 
     if (isadmin()) {
-        if (!empty($USER->editing)) {
+        if (!empty($USER->categoriesediting)) {
             $string = get_string("turneditingoff");
             $edit = "off";
         } else {
@@ -1436,6 +1474,44 @@ function update_categories_button() {
     }
 }
 
+function update_group_button($courseid) {
+// Prints the editing button on group page
+    global $CFG, $USER;
+
+    if (isteacheredit($courseid)) {
+        if (!empty($USER->groupediting)) {
+            $string = get_string("turneditingoff");
+            $edit = "off";
+        } else {
+            $string = get_string("turneditingon");
+            $edit = "on";
+        }
+        return "<form target=\"$CFG->framename\" method=\"get\" action=\"$CFG->wwwroot/course/group.php\">".
+               "<input type=\"hidden\" name=\"id\" value=\"$courseid\" />".
+               "<input type=\"hidden\" name=\"edit\" value=\"$edit\" />".
+               "<input type=\"submit\" value=\"$string\" /></form>";
+    }
+}
+
+function update_groups_button($courseid) {
+// Prints the editing button on groups page
+    global $CFG, $USER;
+
+    if (isteacheredit($courseid)) {
+        if (!empty($USER->groupsediting)) {
+            $string = get_string("turneditingoff");
+            $edit = "off";
+        } else {
+            $string = get_string("turneditingon");
+            $edit = "on";
+        }
+        return "<form target=\"$CFG->framename\" method=\"get\" action=\"$CFG->wwwroot/course/groups.php\">".
+               "<input type=\"hidden\" name=\"id\" value=\"$courseid\" />".
+               "<input type=\"hidden\" name=\"edit\" value=\"$edit\" />".
+               "<input type=\"submit\" value=\"$string\" /></form>";
+    }
+}
+
 
 function navmenu($course, $cm=NULL, $targetwindow="self") {
 // Given a course and a (current) coursemodule
@@ -1801,6 +1877,10 @@ function print_paging_bar($totalcount, $page, $perpage, $baseurl) {
     if ($totalcount > $perpage) {
         echo "<center>";
         echo "<p>".get_string("page").":";
+        if ($page > 0) {
+            $pagenum=$page-1;
+            echo "&nbsp;(<a  href=\"{$baseurl}page=$pagenum\">".get_string("previous")."</a>)&nbsp;";
+        }
         $lastpage = ceil($totalcount / $perpage);
         if ($page > 15) {
             $startpage = $page - 10;
diff --git a/pix/g/f1.png b/pix/g/f1.png
new file mode 100755 (executable)
index 0000000..38a7549
Binary files /dev/null and b/pix/g/f1.png differ
diff --git a/pix/g/f2.png b/pix/g/f2.png
new file mode 100755 (executable)
index 0000000..f9f69d7
Binary files /dev/null and b/pix/g/f2.png differ
diff --git a/user/pixgroup.php b/user/pixgroup.php
new file mode 100644 (file)
index 0000000..c5505a2
--- /dev/null
@@ -0,0 +1,49 @@
+<?php // $Id$
+      // This function fetches group pictures from the data directory
+      // Syntax:   pix.php/groupid/f1.jpg or pix.php/groupid/f2.jpg
+      //     OR:   ?file=groupid/f1.jpg or ?file=groupid/f2.jpg
+
+    $nomoodlecookie = true;     // Because it interferes with caching
+
+    require_once("../config.php");
+
+    $lifetime = 86400;
+
+    if (isset($file)) {     // workaround for situations where / syntax doesn't work
+        $pathinfo = $file;
+
+    } else {
+        $pathinfo = get_slash_arguments("pixgroup.php");
+    }
+
+    if (! $args = parse_slash_arguments($pathinfo)) {
+        error("No valid arguments supplied");
+    }
+
+    $numargs = count($args);
+
+    if ($numargs == 2) {
+        $groupid = (integer)$args[0];
+        $image  = $args[1];
+        $pathname = "$CFG->dataroot/groups/$groupid/$image";
+        $filetype = "image/jpeg";
+    } else {
+        $pathname = "$CFG->dirroot/pix/g/f1.png";
+        $filetype = "image/png";
+    }
+
+    $lastmodified = filemtime($pathname);
+
+    if (file_exists($pathname)) {
+        header("Last-Modified: " . gmdate("D, d M Y H:i:s", $lastmodified) . " GMT");
+        header("Expires: " . gmdate("D, d M Y H:i:s", time() + $lifetime) . " GMT");
+        header("Cache-control: max_age = $lifetime"); // a day
+        header("Pragma: ");
+        header("Content-disposition: inline; filename=$image");
+        header("Content-length: ".filesize($pathname));
+        header("Content-type: $filetype");
+        readfile("$pathname");
+    }
+
+    exit;
+?>
index 216339e..9300e57 100644 (file)
@@ -5,7 +5,7 @@
 // database to determine whether upgrades should
 // be performed (see lib/db/*.php)
 
-$version = 2003121500;   // The current version is a date (YYYYMMDDXX)
+$version = 2003122600;   // The current version is a date (YYYYMMDDXX)
 
 $release = "1.2 development";   // User-friendly version number