chamilo / chamilo-lms

main/gradebook/lib/fe/displaygradebook.php

Spacing +123 added lines, -123 removed lines

@@ -20,37 +20,37 @@ 
         if (api_is_allowed_to_edit(null, true)) {
             $header = '<div class="actions">';
             if ($page != 'statistics') {
-                $header .= '<a href="' . Security::remove_XSS($_SESSION['gradebook_dest']) . '?selectcat=' . $selectcat . '">' .
-                    Display::return_icon(('back.png'), get_lang('FolderView'), '', ICON_SIZE_MEDIUM) . '</a>';
+                $header .= '<a href="'.Security::remove_XSS($_SESSION['gradebook_dest']).'?selectcat='.$selectcat.'">'.
+                    Display::return_icon(('back.png'), get_lang('FolderView'), '', ICON_SIZE_MEDIUM).'</a>';
                 if ($evalobj->get_course_code() == null) {
 
                 } elseif (!$evalobj->has_results()) {
-                    $header .= '<a href="gradebook_add_result.php?'.api_get_cidreq().'&selectcat=' . $selectcat . '&selecteval=' . $evalobj->get_id() . '">
-    				' . Display::return_icon('evaluation_rate.png', get_lang('AddResult'), '', ICON_SIZE_MEDIUM) . '</a>';
+                    $header .= '<a href="gradebook_add_result.php?'.api_get_cidreq().'&selectcat='.$selectcat.'&selecteval='.$evalobj->get_id().'">
+    				' . Display::return_icon('evaluation_rate.png', get_lang('AddResult'), '', ICON_SIZE_MEDIUM).'</a>';
                 }
 
                 if (api_is_platform_admin() || $evalobj->is_locked() == false) {
-                    $header .= '<a href="' . api_get_self() . '?'.api_get_cidreq().'&selecteval=' . $evalobj->get_id() . '&import=">' .
-                        Display::return_icon('import_evaluation.png', get_lang('ImportResult'), '', ICON_SIZE_MEDIUM) . '</a>';
+                    $header .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&selecteval='.$evalobj->get_id().'&import=">'.
+                        Display::return_icon('import_evaluation.png', get_lang('ImportResult'), '', ICON_SIZE_MEDIUM).'</a>';
                 }
 
                 if ($evalobj->has_results()) {
-                    $header .= '<a href="' . api_get_self() . '?'.api_get_cidreq().'&selecteval=' . $evalobj->get_id() . '&export=">' .
-                        Display::return_icon('export_evaluation.png', get_lang('ExportResult'), '', ICON_SIZE_MEDIUM) . '</a>';
+                    $header .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&selecteval='.$evalobj->get_id().'&export=">'.
+                        Display::return_icon('export_evaluation.png', get_lang('ExportResult'), '', ICON_SIZE_MEDIUM).'</a>';
 
                     if (api_is_platform_admin() || $evalobj->is_locked() == false) {
-                        $header .= '<a href="gradebook_edit_result.php?'.api_get_cidreq().'&selecteval=' . $evalobj->get_id() . '">' .
-                            Display::return_icon('edit.png', get_lang('EditResult'), '', ICON_SIZE_MEDIUM) . '</a>';
-                        $header .= '<a href="' . api_get_self() . '?'.api_get_cidreq().'&selecteval=' . $evalobj->get_id() . '&deleteall=" onclick="return confirmationall();">' .
-                            Display::return_icon('delete.png', get_lang('DeleteResult'), '', ICON_SIZE_MEDIUM) . '</a>';
+                        $header .= '<a href="gradebook_edit_result.php?'.api_get_cidreq().'&selecteval='.$evalobj->get_id().'">'.
+                            Display::return_icon('edit.png', get_lang('EditResult'), '', ICON_SIZE_MEDIUM).'</a>';
+                        $header .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&selecteval='.$evalobj->get_id().'&deleteall=" onclick="return confirmationall();">'.
+                            Display::return_icon('delete.png', get_lang('DeleteResult'), '', ICON_SIZE_MEDIUM).'</a>';
                     }
                 }
 
-                $header .= '<a href="' . api_get_self() . '?'.api_get_cidreq().'&print=&selecteval=' . $evalobj->get_id() . '" target="_blank">' .
-                    Display::return_icon('printer.png', get_lang('Print'), '', ICON_SIZE_MEDIUM) . '</a>';
+                $header .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&print=&selecteval='.$evalobj->get_id().'" target="_blank">'.
+                    Display::return_icon('printer.png', get_lang('Print'), '', ICON_SIZE_MEDIUM).'</a>';
             } else {
-                $header .= '<a href="gradebook_view_result.php?'.api_get_cidreq().'&selecteval=' . Security::remove_XSS($_GET['selecteval']) . '"> ' .
-                    Display::return_icon(('back.png'), get_lang('FolderView'), '', ICON_SIZE_MEDIUM) . '</a>';
+                $header .= '<a href="gradebook_view_result.php?'.api_get_cidreq().'&selecteval='.Security::remove_XSS($_GET['selecteval']).'"> '.
+                    Display::return_icon(('back.png'), get_lang('FolderView'), '', ICON_SIZE_MEDIUM).'</a>';
             }
             $header .= '</div>';
         }
@@ -69,17 +69,17 @@ 
             $score = $evalobj->calc_score();
 
             if ($score != null) {
-                $average = get_lang('Average') . ' :<b> ' . $scoredisplay->display_score($score, SCORE_AVERAGE) . '</b>';
+                $average = get_lang('Average').' :<b> '.$scoredisplay->display_score($score, SCORE_AVERAGE).'</b>';
                 $student_score = $evalobj->calc_score(api_get_user_id());
                 $student_score = Display::tag(
                     'h3',
-                    get_lang('Score') . ': ' . $scoredisplay->display_score($student_score, SCORE_DIV_PERCENT)
+                    get_lang('Score').': '.$scoredisplay->display_score($student_score, SCORE_DIV_PERCENT)
                 );
             }
         }
         $description = "";
         if (!$evalobj->get_description() == '') {
-            $description = get_lang('Description') . ' :<b> ' . $evalobj->get_description() . '</b><br>';
+            $description = get_lang('Description').' :<b> '.$evalobj->get_description().'</b><br>';
         }
 
         if ($evalobj->get_course_code() == null) {
@@ -89,18 +89,18 @@ 
         }
 
         $evalinfo = '<table width="100%" border="0"><tr><td>';
-        $evalinfo .= '<h2>' . $evalobj->get_name() . '</h2><hr>';
+        $evalinfo .= '<h2>'.$evalobj->get_name().'</h2><hr>';
         $evalinfo .= $description;
-        $evalinfo .= get_lang('Course') . ' :<b> ' . $course . '</b><br />';
+        $evalinfo .= get_lang('Course').' :<b> '.$course.'</b><br />';
         //'<br>' . get_lang('Weight') . ' :<b> ' . $evalobj->get_weight() . '</b><br>' . get_lang('Visible') . ' :<b> ' . $visible . '</b>
-        $evalinfo .= get_lang('QualificationNumeric') . ' :<b> ' . $evalobj->get_max() . '</b><br>' . $average;
+        $evalinfo .= get_lang('QualificationNumeric').' :<b> '.$evalobj->get_max().'</b><br>'.$average;
 
         if (!api_is_allowed_to_edit()) {
             $evalinfo .= $student_score;
         }
 
         if (!$evalobj->has_results()) {
-            $evalinfo .= '<br /><i>' . get_lang('NoResultsInEvaluation') . '</i>';
+            $evalinfo .= '<br /><i>'.get_lang('NoResultsInEvaluation').'</i>';
         } elseif ($scoredisplay->is_custom() && api_get_self() != '/main/gradebook/gradebook_statistics.php') {
             if (api_is_allowed_to_edit(null, true)) {
                 if ($page != 'statistics') {
@@ -110,7 +110,7 @@ 
         }
         if ($page != 'statistics') {
             if (api_is_allowed_to_edit(null, true)) {
-                $evalinfo .= '<br /><a href="gradebook_statistics.php?' . api_get_cidreq() . '&selecteval=' . Security::remove_XSS($_GET['selecteval']) . '"> ' . Display::return_icon(('statistics.png'), get_lang('ViewStatistics'), '', ICON_SIZE_MEDIUM) . '</a>';
+                $evalinfo .= '<br /><a href="gradebook_statistics.php?'.api_get_cidreq().'&selecteval='.Security::remove_XSS($_GET['selecteval']).'"> '.Display::return_icon(('statistics.png'), get_lang('ViewStatistics'), '', ICON_SIZE_MEDIUM).'</a>';
             }
         }
         $evalinfo .= '</td><td><img style="float:right; position:relative;" src="../img/tutorial.gif"></td></table>';
@@ -127,8 +127,8 @@ 
     public function display_header_flatview($catobj, $showeval, $showlink, $simple_search_form)
     {
         $header = '<table border="0" cellpadding="5">';
-        $header .= '<td style="vertical-align: top;"><a href="' . Security::remove_XSS($_SESSION['gradebook_dest']) . '?selectcat=' . Security::remove_XSS($_GET['selectcat']) . '">' . Display::return_icon('gradebook.gif') . get_lang('Gradebook') . '</a></td>';
-        $header .= '<td style="vertical-align: top;">' . get_lang('FilterCategory') . '</td><td style="vertical-align: top;"><form name="selector"><select name="selectcat" onchange="document.selector.submit()">';
+        $header .= '<td style="vertical-align: top;"><a href="'.Security::remove_XSS($_SESSION['gradebook_dest']).'?selectcat='.Security::remove_XSS($_GET['selectcat']).'">'.Display::return_icon('gradebook.gif').get_lang('Gradebook').'</a></td>';
+        $header .= '<td style="vertical-align: top;">'.get_lang('FilterCategory').'</td><td style="vertical-align: top;"><form name="selector"><select name="selectcat" onchange="document.selector.submit()">';
         $cats = Category :: load();
         $tree = $cats[0]->get_tree();
         unset($cats);
@@ -137,26 +137,26 @@ 
                 $line .= '&mdash;';
             }
             if ($_GET['selectcat'] == $cat[0]) {
-                $header .= '<option selected="selected" value=' . $cat[0] . '>' . $line . ' ' . $cat[1] . '</option>';
+                $header .= '<option selected="selected" value='.$cat[0].'>'.$line.' '.$cat[1].'</option>';
             } else {
-                $header .= '<option value=' . $cat[0] . '>' . $line . ' ' . $cat[1] . '</option>';
+                $header .= '<option value='.$cat[0].'>'.$line.' '.$cat[1].'</option>';
             }
             $line = '';
         }
         $header .= '</td></select></form>';
         if (!$catobj->get_id() == '0') {
-            $header .= '<td style="vertical-align: top;"><a href="' . api_get_self() . '?selectcat=' . $catobj->get_parent_id() . '"><img src="../img/gradebook.gif" border="0" alt="' . get_lang('Up') . '" /></a></td>';
+            $header .= '<td style="vertical-align: top;"><a href="'.api_get_self().'?selectcat='.$catobj->get_parent_id().'"><img src="../img/gradebook.gif" border="0" alt="'.get_lang('Up').'" /></a></td>';
         }
-        $header .= '<td style="vertical-align: top;">' . $simple_search_form->toHtml() . '</td>';
-        $header .= '<td style="vertical-align: top;"><a href="' . api_get_self() . '?exportpdf=&offset=' . Security::remove_XSS($_GET['offset']) . '&search=' . Security::remove_XSS($_GET['search']) . '&selectcat=' . $catobj->get_id() . '"><img src=../img/icons/32/pdf.png alt=' . get_lang('ExportPDF') . '/> ' . get_lang('ExportPDF') . '</a>';
-        $header .= '<td style="vertical-align: top;"><a href="' . api_get_self() . '?print=&selectcat=' . $catobj->get_id() . '" target="_blank"><img src="../img/icons/32/printer.png" alt=' . get_lang('Print') . '/> ' . get_lang('Print') . '</a>';
+        $header .= '<td style="vertical-align: top;">'.$simple_search_form->toHtml().'</td>';
+        $header .= '<td style="vertical-align: top;"><a href="'.api_get_self().'?exportpdf=&offset='.Security::remove_XSS($_GET['offset']).'&search='.Security::remove_XSS($_GET['search']).'&selectcat='.$catobj->get_id().'"><img src=../img/icons/32/pdf.png alt='.get_lang('ExportPDF').'/> '.get_lang('ExportPDF').'</a>';
+        $header .= '<td style="vertical-align: top;"><a href="'.api_get_self().'?print=&selectcat='.$catobj->get_id().'" target="_blank"><img src="../img/icons/32/printer.png" alt='.get_lang('Print').'/> '.get_lang('Print').'</a>';
         $header .= '</td></tr></table>';
         if (!$catobj->get_id() == '0') {
-            $header .= '<table border="0" cellpadding="5"><tr><td><form name="itemfilter" method="post" action="' . api_get_self() . '?selectcat=' . $catobj->get_id() . '"><input type="checkbox" name="showeval" onclick="document.itemfilter.submit()" ' . (($showeval == '1') ? 'checked' : '') . '>Show Evaluations &nbsp;';
-            $header .= '<input type="checkbox" name="showlink" onclick="document.itemfilter.submit()" ' . (($showlink == '1') ? 'checked' : '') . '>' . get_lang('ShowLinks') . '</form></td></tr></table>';
+            $header .= '<table border="0" cellpadding="5"><tr><td><form name="itemfilter" method="post" action="'.api_get_self().'?selectcat='.$catobj->get_id().'"><input type="checkbox" name="showeval" onclick="document.itemfilter.submit()" '.(($showeval == '1') ? 'checked' : '').'>Show Evaluations &nbsp;';
+            $header .= '<input type="checkbox" name="showlink" onclick="document.itemfilter.submit()" '.(($showlink == '1') ? 'checked' : '').'>'.get_lang('ShowLinks').'</form></td></tr></table>';
         }
         if (isset($_GET['search'])) {
-            $header .= '<b>' . get_lang('SearchResults') . ' :</b>';
+            $header .= '<b>'.get_lang('SearchResults').' :</b>';
         }
         echo $header;
     }
@@ -177,23 +177,23 @@ 
             $select_cat = $catobj->get_parent_id();
             $url = 'gradebook_flatview.php';
         }
-        $header .= '<a href="' . $url . '?' . api_get_cidreq() . '&selectcat=' . $select_cat . '">' .
-            Display::return_icon('back.png', get_lang('FolderView'), '', ICON_SIZE_MEDIUM) . '</a>';
+        $header .= '<a href="'.$url.'?'.api_get_cidreq().'&selectcat='.$select_cat.'">'.
+            Display::return_icon('back.png', get_lang('FolderView'), '', ICON_SIZE_MEDIUM).'</a>';
 
         $pageNum = isset($_GET['flatviewlist_page_nr']) ? intval($_GET['flatviewlist_page_nr']) : '';
         $perPage = isset($_GET['flatviewlist_per_page']) ? intval($_GET['flatviewlist_per_page']) : '';
         $offset = isset($_GET['offset']) ? $_GET['offset'] : '0';
 
-        $header .= '<a href="' . api_get_self() . '?'.api_get_cidreq().'&export_format=csv&export_report=export_report&selectcat=' . $catobj->get_id() . '">' .
-            Display::return_icon('export_csv.png', get_lang('ExportAsCSV'), '', ICON_SIZE_MEDIUM) . '</a>';
-        $header .= '<a href="' . api_get_self() . '?'.api_get_cidreq().'&export_format=xls&export_report=export_report&selectcat=' . $catobj->get_id() . '">' .
-            Display::return_icon('export_excel.png', get_lang('ExportAsXLS'), '', ICON_SIZE_MEDIUM) . '</a>';
-        $header .= '<a href="' . api_get_self() . '?'.api_get_cidreq().'&export_format=doc&export_report=export_report&selectcat=' . $catobj->get_id() . '">' .
-            Display::return_icon('export_doc.png', get_lang('ExportAsDOC'), '', ICON_SIZE_MEDIUM) . '</a>';
-        $header .= '<a href="' . api_get_self() . '?'.api_get_cidreq().'&print=&selectcat=' . $catobj->get_id() . '" target="_blank">' .
-            Display::return_icon('printer.png', get_lang('Print'), '', ICON_SIZE_MEDIUM) . '</a>';
-        $header .= '<a href="' . api_get_self() . '?'.api_get_cidreq().'&exportpdf=&selectcat=' . $catobj->get_id().'&offset='.$offset.'&flatviewlist_page_nr='.$pageNum.'&flatviewlist_per_page='.$perPage.'" >' .
-            Display::return_icon('pdf.png', get_lang('ExportToPDF'), '', ICON_SIZE_MEDIUM) . '</a>';
+        $header .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&export_format=csv&export_report=export_report&selectcat='.$catobj->get_id().'">'.
+            Display::return_icon('export_csv.png', get_lang('ExportAsCSV'), '', ICON_SIZE_MEDIUM).'</a>';
+        $header .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&export_format=xls&export_report=export_report&selectcat='.$catobj->get_id().'">'.
+            Display::return_icon('export_excel.png', get_lang('ExportAsXLS'), '', ICON_SIZE_MEDIUM).'</a>';
+        $header .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&export_format=doc&export_report=export_report&selectcat='.$catobj->get_id().'">'.
+            Display::return_icon('export_doc.png', get_lang('ExportAsDOC'), '', ICON_SIZE_MEDIUM).'</a>';
+        $header .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&print=&selectcat='.$catobj->get_id().'" target="_blank">'.
+            Display::return_icon('printer.png', get_lang('Print'), '', ICON_SIZE_MEDIUM).'</a>';
+        $header .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&exportpdf=&selectcat='.$catobj->get_id().'&offset='.$offset.'&flatviewlist_page_nr='.$pageNum.'&flatviewlist_per_page='.$perPage.'" >'.
+            Display::return_icon('pdf.png', get_lang('ExportToPDF'), '', ICON_SIZE_MEDIUM).'</a>';
         $header .= '</div>';
         echo $header;
     }
@@ -234,8 +234,8 @@ 
                 $item = $evals_links[$count];
                 $score = $item->calc_score($user_id);
                 $my_score_denom = ($score[1] == 0) ? 1 : $score[1];
-                $item_value+=$score[0] / $my_score_denom * $item->get_weight();
-                $item_total+=$item->get_weight();
+                $item_value += $score[0] / $my_score_denom * $item->get_weight();
+                $item_total += $item->get_weight();
             }
             $item_value = number_format($item_value, 2, '.', ' ');
             $total_score = array($item_value, $item_total);
@@ -244,9 +244,9 @@ 
             $cattotal = Category :: load(0);
             $scoretotal = $cattotal[0]->calc_score(api_get_user_id());
             $scoretotal_display = (isset($scoretotal) ? $scoredisplay->display_score($scoretotal, SCORE_PERCENT) : get_lang('NoResultsAvailable'));
-            $scoreinfo = get_lang('StatsStudent') . ' :<b> ' . api_get_person_name($user['firstname'], $user['lastname']) . '</b><br />';
+            $scoreinfo = get_lang('StatsStudent').' :<b> '.api_get_person_name($user['firstname'], $user['lastname']).'</b><br />';
             if ((!$catobj->get_id() == '0') && (!isset($_GET['studentoverview'])) && (!isset($_GET['search']))) {
-                $scoreinfo.= '<h2>' . get_lang('Total') . ' : ' . $scorecourse_display . '</h2>';
+                $scoreinfo .= '<h2>'.get_lang('Total').' : '.$scorecourse_display.'</h2>';
             }
             Display :: display_normal_message($scoreinfo, false);
         }
@@ -256,9 +256,9 @@ 
         if (($showtree == '1') || (isset($_GET['studentoverview']))) {
             $header .= '<tr>';
             if (!$selectcat == '0') {
-                $header .= '<td style=" "><a href="' . api_get_self() . '?selectcat=' . $catobj->get_parent_id() . '">' . Display::return_icon('back.png', get_lang('BackTo') . ' ' . get_lang('RootCat'), '', ICON_SIZE_MEDIUM) . '</a></td>';
+                $header .= '<td style=" "><a href="'.api_get_self().'?selectcat='.$catobj->get_parent_id().'">'.Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('RootCat'), '', ICON_SIZE_MEDIUM).'</a></td>';
             }
-            $header .= '<td style=" ">' . get_lang('CurrentCategory') . '</td>' .
+            $header .= '<td style=" ">'.get_lang('CurrentCategory').'</td>'.
                     '<td style=" "><form name="selector"><select name="selectcat" onchange="document.selector.submit()">';
             $cats = Category :: load();
 
@@ -271,15 +271,15 @@ 
                 }
                 $line = isset($line) ? $line : '';
                 if (isset($_GET['selectcat']) && $_GET['selectcat'] == $cat[0]) {
-                    $header .= '<option selected value=' . $cat[0] . '>' . $line . ' ' . $cat[1] . '</option>';
+                    $header .= '<option selected value='.$cat[0].'>'.$line.' '.$cat[1].'</option>';
                 } else {
-                    $header .= '<option value=' . $cat[0] . '>' . $line . ' ' . $cat[1] . '</option>';
+                    $header .= '<option value='.$cat[0].'>'.$line.' '.$cat[1].'</option>';
                 }
                 $line = '';
             }
             $header .= '</select></form></td>';
             if (!empty($simple_search_form) && $message_resource === false) {
-                $header .= '<td style="vertical-align: top;">' . $simple_search_form->toHtml() . '</td>';
+                $header .= '<td style="vertical-align: top;">'.$simple_search_form->toHtml().'</td>';
             } else {
                 $header .= '<td></td>';
             }
@@ -293,11 +293,11 @@ 
                     //$header .= '<td style="vertical-align: top;"><a href="'.api_get_self().'?'.api_get_cidreq().'&studentoverview=&selectcat=' . $catobj->get_id() . '"><img src="../img/view_list.gif" alt="' . get_lang('FlatView') . '" /> ' . get_lang('FlatView') . '</a>';
                 }
             } else {
-                $header .= '<td style="vertical-align: top;"><a href="' . api_get_self() . '?' . api_get_cidreq() . '&studentoverview=&exportpdf=&selectcat=' . $catobj->get_id() . '" target="_blank"><img src="../img/icons/32/pdf.png" alt="' . get_lang('ExportPDF') . '" /> ' . get_lang('ExportPDF') . '</a>';
+                $header .= '<td style="vertical-align: top;"><a href="'.api_get_self().'?'.api_get_cidreq().'&studentoverview=&exportpdf=&selectcat='.$catobj->get_id().'" target="_blank"><img src="../img/icons/32/pdf.png" alt="'.get_lang('ExportPDF').'" /> '.get_lang('ExportPDF').'</a>';
             }
             $header .= '</td></tr>';
         }
-        $header.='</table></div>';
+        $header .= '</table></div>';
 
         // for course admin & platform admin add item buttons are added to the header
         $header .= '<div class="actions">';
@@ -327,7 +327,7 @@ 
                 $my_category = $catobj->shows_all_information_an_category($catobj->get_id());
                 $my_api_cidreq = api_get_cidreq();
                 if ($my_api_cidreq == '') {
-                    $my_api_cidreq = 'cidReq=' . $my_category['course_code'];
+                    $my_api_cidreq = 'cidReq='.$my_category['course_code'];
                 }
                 if ($show_add_link && !$message_resource) {
                     //$header .= '<td><a href="gradebook_add_eval.php?'.$my_api_cidreq.'&selectcat=' . $catobj->get_id() . '" >'.Display::return_icon('new_evaluation.png', get_lang('NewEvaluation'),'',ICON_SIZE_MEDIUM).'</a>';
@@ -346,28 +346,28 @@ 
                     $my_course_id = api_get_course_id();
                     $my_file = substr($_SESSION['gradebook_dest'], 0, 5);
 
-                    $header .= '<td style="vertical-align: top;"><a href="gradebook_flatview.php?' . $my_api_cidreq . '&selectcat=' . $catobj->get_id() . '">' .
-                        Display::return_icon('stats.png', get_lang('FlatView'), '', ICON_SIZE_MEDIUM) . '</a>';
-                    $header .= '<td style="vertical-align: top;"><a href="gradebook_display_certificate.php?' . $my_api_cidreq . '&amp;cat_id=' . (int) $_GET['selectcat'] . '">' .
-                        Display::return_icon('certificate_list.png', get_lang('GradebookSeeListOfStudentsCertificates'), '', ICON_SIZE_MEDIUM) . '</a>';
+                    $header .= '<td style="vertical-align: top;"><a href="gradebook_flatview.php?'.$my_api_cidreq.'&selectcat='.$catobj->get_id().'">'.
+                        Display::return_icon('stats.png', get_lang('FlatView'), '', ICON_SIZE_MEDIUM).'</a>';
+                    $header .= '<td style="vertical-align: top;"><a href="gradebook_display_certificate.php?'.$my_api_cidreq.'&amp;cat_id='.(int) $_GET['selectcat'].'">'.
+                        Display::return_icon('certificate_list.png', get_lang('GradebookSeeListOfStudentsCertificates'), '', ICON_SIZE_MEDIUM).'</a>';
 
                     $visibility_icon = ($catobj->is_visible() == 0) ? 'invisible' : 'visible';
                     $visibility_command = ($catobj->is_visible() == 0) ? 'set_visible' : 'set_invisible';
 
                     //Right icons
-                    $modify_icons = '<a href="gradebook_edit_cat.php?editcat=' . $catobj->get_id() . '&cidReq=' . $catobj->get_course_code() . '&id_session='.$catobj->get_session_id(). '">' . Display::return_icon('edit.png', get_lang('Edit'), '', ICON_SIZE_MEDIUM) . '</a>';
+                    $modify_icons = '<a href="gradebook_edit_cat.php?editcat='.$catobj->get_id().'&cidReq='.$catobj->get_course_code().'&id_session='.$catobj->get_session_id().'">'.Display::return_icon('edit.png', get_lang('Edit'), '', ICON_SIZE_MEDIUM).'</a>';
                     //$modify_icons .= '<a href="../document/document.php?curdirpath=/certificates&'.$my_api_cidreq.'&origin=gradebook&selectcat=' . $catobj->get_id() . '">'.
                     //Display::return_icon('certificate.png', get_lang('AttachCertificate'),'',ICON_SIZE_MEDIUM).'</a>';
                     //hide or delete are not options available
                     //$modify_icons .= '&nbsp;<a  href="' . api_get_self() . '?visiblecat=' . $catobj->get_id() . '&amp;' . $visibility_command . '=&amp;selectcat=0 ">'.Display::return_icon($visibility_icon.'.png', get_lang('Visible'),'',ICON_SIZE_MEDIUM).'</a>';
                     if ($catobj->get_name() != api_get_course_id()) {
-                        $modify_icons .= '&nbsp;<a  href="' . api_get_self() . '?deletecat=' . $catobj->get_id() . '&amp;selectcat=0&amp;cidReq=' . $catobj->get_course_code() . '" onclick="return confirmation();">' . Display::return_icon('delete.png', get_lang('DeleteAll'), '', ICON_SIZE_MEDIUM) . '</a>';
+                        $modify_icons .= '&nbsp;<a  href="'.api_get_self().'?deletecat='.$catobj->get_id().'&amp;selectcat=0&amp;cidReq='.$catobj->get_course_code().'" onclick="return confirmation();">'.Display::return_icon('delete.png', get_lang('DeleteAll'), '', ICON_SIZE_MEDIUM).'</a>';
                     }
                     $header .= Display::div($modify_icons, array('class' => 'right'));
                 }
             }
         } elseif (isset($_GET['search'])) {
-            $header .= '<b>' . get_lang('SearchResults') . ' :</b>';
+            $header .= '<b>'.get_lang('SearchResults').' :</b>';
         }
         $header .= '</div>';
         echo $header;
@@ -479,7 +479,7 @@ 
                     $aditionalButtons .= isset($certificateLinkInfo['badge_link']) ? $certificateLinkInfo['badge_link'] : '';
                     $aditionalButtons .= '</div>';
                 }
-                $scoreinfo .= '<strong>' . sprintf(get_lang('TotalX'), $scorecourse_display . $aditionalButtons). '</strong>';
+                $scoreinfo .= '<strong>'.sprintf(get_lang('TotalX'), $scorecourse_display.$aditionalButtons).'</strong>';
 
             }
             Display :: display_normal_message($scoreinfo, false);
@@ -490,10 +490,10 @@ 
             $header = '<div class="actions"><table>';
             $header .= '<tr>';
             if (!$selectcat == '0') {
-                $header .= '<td><a href="' . api_get_self() . '?selectcat=' . $catobj->get_parent_id() . '">' .
-                    Display::return_icon('back.png', get_lang('BackTo') . ' ' . get_lang('RootCat'), '', ICON_SIZE_MEDIUM) . '</a></td>';
+                $header .= '<td><a href="'.api_get_self().'?selectcat='.$catobj->get_parent_id().'">'.
+                    Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('RootCat'), '', ICON_SIZE_MEDIUM).'</a></td>';
             }
-            $header .= '<td>' . get_lang('CurrentCategory') . '</td>' .
+            $header .= '<td>'.get_lang('CurrentCategory').'</td>'.
                     '<td><form name="selector"><select name="selectcat" onchange="document.selector.submit()">';
             $cats = Category :: load();
 
@@ -506,15 +506,15 @@ 
                 }
                 $line = isset($line) ? $line : '';
                 if (isset($_GET['selectcat']) && $_GET['selectcat'] == $cat[0]) {
-                    $header .= '<option selected value=' . $cat[0] . '>' . $line . ' ' . $cat[1] . '</option>';
+                    $header .= '<option selected value='.$cat[0].'>'.$line.' '.$cat[1].'</option>';
                 } else {
-                    $header .= '<option value=' . $cat[0] . '>' . $line . ' ' . $cat[1] . '</option>';
+                    $header .= '<option value='.$cat[0].'>'.$line.' '.$cat[1].'</option>';
                 }
                 $line = '';
             }
             $header .= '</select></form></td>';
             if (!empty($simple_search_form) && $message_resource === false) {
-                $header .= '<td style="vertical-align: top;">' . $simple_search_form->toHtml() . '</td>';
+                $header .= '<td style="vertical-align: top;">'.$simple_search_form->toHtml().'</td>';
             } else {
                 $header .= '<td></td>';
             }
@@ -531,11 +531,11 @@ 
                     //$header .= '<td style="vertical-align: top;"><a href="'.api_get_self().'?'.api_get_cidreq().'&studentoverview=&selectcat=' . $catobj->get_id() . '"><img src="../img/view_list.gif" alt="' . get_lang('FlatView') . '" /> ' . get_lang('FlatView') . '</a>';
                 }
             } else {
-                $header .= '<td style="vertical-align: top;"><a href="' . api_get_self() . '?' . api_get_cidreq() . '&studentoverview=&exportpdf=&selectcat=' . $catobj->get_id() . '" target="_blank">
-							<img src="../img/icons/32/pdf.png" alt="' . get_lang('ExportPDF') . '" /> ' . get_lang('ExportPDF') . '</a>';
+                $header .= '<td style="vertical-align: top;"><a href="'.api_get_self().'?'.api_get_cidreq().'&studentoverview=&exportpdf=&selectcat='.$catobj->get_id().'" target="_blank">
+							<img src="../img/icons/32/pdf.png" alt="' . get_lang('ExportPDF').'" /> '.get_lang('ExportPDF').'</a>';
             }
             $header .= '</td></tr>';
-            $header.='</table></div>';
+            $header .= '</table></div>';
         }
 
         // for course admin & platform admin add item buttons are added to the header
@@ -547,33 +547,33 @@ 
 
         if (api_is_allowed_to_edit(null, true)) {
             if (empty($grade_model_id) || $grade_model_id == -1) {
-                $actionsLeft .= '<a href="gradebook_add_cat.php?' . api_get_cidreq() . '&selectcat=' . $catobj->get_id() . '">' .
-                    Display::return_icon('new_folder.png', get_lang('AddGradebook'), array(), ICON_SIZE_MEDIUM) . '</a></td>';
+                $actionsLeft .= '<a href="gradebook_add_cat.php?'.api_get_cidreq().'&selectcat='.$catobj->get_id().'">'.
+                    Display::return_icon('new_folder.png', get_lang('AddGradebook'), array(), ICON_SIZE_MEDIUM).'</a></td>';
             }
             if ($selectcat == '0') {
 
             } else {
                 $my_category = $catobj->shows_all_information_an_category($catobj->get_id());
                 if ($my_api_cidreq == '') {
-                    $my_api_cidreq = 'cidReq=' . $my_category['course_code'];
+                    $my_api_cidreq = 'cidReq='.$my_category['course_code'];
                 }
                 if ($show_add_link && !$message_resource) {
-                   $actionsLeft .= '<a href="gradebook_add_eval.php?' . $my_api_cidreq . '&selectcat=' . $catobj->get_id() . '" >' .
-                        Display::return_icon('new_evaluation.png', get_lang('NewEvaluation'), '', ICON_SIZE_MEDIUM) . '</a>';
+                   $actionsLeft .= '<a href="gradebook_add_eval.php?'.$my_api_cidreq.'&selectcat='.$catobj->get_id().'" >'.
+                        Display::return_icon('new_evaluation.png', get_lang('NewEvaluation'), '', ICON_SIZE_MEDIUM).'</a>';
                     $cats = Category :: load($selectcat);
 
                     if ($cats[0]->get_course_code() != null && !$message_resource) {
-                        $actionsLeft .= '<a href="gradebook_add_link.php?' . $my_api_cidreq . '&selectcat=' . $catobj->get_id() . '">' .
-                            Display::return_icon('new_online_evaluation.png', get_lang('MakeLink'), '', ICON_SIZE_MEDIUM) . '</a>';
+                        $actionsLeft .= '<a href="gradebook_add_link.php?'.$my_api_cidreq.'&selectcat='.$catobj->get_id().'">'.
+                            Display::return_icon('new_online_evaluation.png', get_lang('MakeLink'), '', ICON_SIZE_MEDIUM).'</a>';
                     } else {
-                        $actionsLeft .= '<a href="gradebook_add_link_select_course.php?' . $my_api_cidreq . '&selectcat=' . $catobj->get_id() . '">' .
-                            Display::return_icon('new_online_evaluation.png', get_lang('MakeLink'), '', ICON_SIZE_MEDIUM) . '</a>';
+                        $actionsLeft .= '<a href="gradebook_add_link_select_course.php?'.$my_api_cidreq.'&selectcat='.$catobj->get_id().'">'.
+                            Display::return_icon('new_online_evaluation.png', get_lang('MakeLink'), '', ICON_SIZE_MEDIUM).'</a>';
                     }
                 }
 
                 if (!$message_resource) {
-                    $actionsLeft .= '<a href="gradebook_flatview.php?' . $my_api_cidreq . '&selectcat=' . $catobj->get_id() . '">' .
-                        Display::return_icon('stats.png', get_lang('FlatView'), '', ICON_SIZE_MEDIUM) . '</a>';
+                    $actionsLeft .= '<a href="gradebook_flatview.php?'.$my_api_cidreq.'&selectcat='.$catobj->get_id().'">'.
+                        Display::return_icon('stats.png', get_lang('FlatView'), '', ICON_SIZE_MEDIUM).'</a>';
 
                     if ($my_category['generate_certificates'] == 1) {
                         $actionsLeft .= Display::url(
@@ -583,7 +583,7 @@ 
                                         '',
                                         ICON_SIZE_MEDIUM
                                         ),
-                                "gradebook_display_certificate.php?$my_api_cidreq&cat_id=" . intval($_GET['selectcat'])
+                                "gradebook_display_certificate.php?$my_api_cidreq&cat_id=".intval($_GET['selectcat'])
                             );
                     }
 
@@ -594,30 +594,30 @@ 
                                     '',
                                     ICON_SIZE_MEDIUM
                                     ),
-                            "gradebook_display_summary.php?$my_api_cidreq&selectcat=" . intval($_GET['selectcat'])
+                            "gradebook_display_summary.php?$my_api_cidreq&selectcat=".intval($_GET['selectcat'])
                         );
 
 
                     // Right icons
-                    $actionsRight = '<a href="gradebook_edit_cat.php?editcat=' . $catobj->get_id() . '&amp;cidReq=' . $catobj->get_course_code() . '&id_session='.$catobj->get_session_id(). '">' .
-                        Display::return_icon('edit.png', get_lang('Edit'), '', ICON_SIZE_MEDIUM) . '</a>';
-                    $actionsRight .= '<a href="../document/document.php?curdirpath=/certificates&' . $my_api_cidreq . '&origin=gradebook&selectcat=' . $catobj->get_id() . '">' .
-                            Display::return_icon('certificate.png', get_lang('AttachCertificate'), '', ICON_SIZE_MEDIUM) . '</a>';
+                    $actionsRight = '<a href="gradebook_edit_cat.php?editcat='.$catobj->get_id().'&amp;cidReq='.$catobj->get_course_code().'&id_session='.$catobj->get_session_id().'">'.
+                        Display::return_icon('edit.png', get_lang('Edit'), '', ICON_SIZE_MEDIUM).'</a>';
+                    $actionsRight .= '<a href="../document/document.php?curdirpath=/certificates&'.$my_api_cidreq.'&origin=gradebook&selectcat='.$catobj->get_id().'">'.
+                            Display::return_icon('certificate.png', get_lang('AttachCertificate'), '', ICON_SIZE_MEDIUM).'</a>';
 
                     if (empty($categories)) {
-                        $actionsRight .= '<a href="gradebook_edit_all.php?id_session=' . api_get_session_id() . '&amp;' . $my_api_cidreq . '&selectcat=' . $catobj->get_id() . '">' .
-                            Display::return_icon('percentage.png', get_lang('EditAllWeights'), '', ICON_SIZE_MEDIUM) . '</a>';
+                        $actionsRight .= '<a href="gradebook_edit_all.php?id_session='.api_get_session_id().'&amp;'.$my_api_cidreq.'&selectcat='.$catobj->get_id().'">'.
+                            Display::return_icon('percentage.png', get_lang('EditAllWeights'), '', ICON_SIZE_MEDIUM).'</a>';
                     }
                     $score_display_custom = api_get_setting('gradebook_score_display_custom');
                     if (api_get_setting('teachers_can_change_score_settings') == 'true' && $score_display_custom['my_display_custom'] == 'true') {
-                        $actionsRight .= '<a href="gradebook_scoring_system.php?' . $my_api_cidreq . '&selectcat=' . $catobj->get_id() . '">' .
-                            Display::return_icon('ranking.png', get_lang('ScoreEdit'), '', ICON_SIZE_MEDIUM) . '</a>';
+                        $actionsRight .= '<a href="gradebook_scoring_system.php?'.$my_api_cidreq.'&selectcat='.$catobj->get_id().'">'.
+                            Display::return_icon('ranking.png', get_lang('ScoreEdit'), '', ICON_SIZE_MEDIUM).'</a>';
                     }
 
                 }
             }
         } elseif (isset($_GET['search'])) {
-            echo $header = '<b>' . get_lang('SearchResults') . ' :</b>';
+            echo $header = '<b>'.get_lang('SearchResults').' :</b>';
         }
 
         $isDrhOfCourse = CourseManager::isUserSubscribedInCourseAsDrh(
@@ -626,26 +626,26 @@ 
         );
 
         if ($isDrhOfCourse) {
-            $$actionsLeft .= '<a href="gradebook_flatview.php?' . $my_api_cidreq . '&selectcat=' . $catobj->get_id() . '">' .
-                Display::return_icon('stats.png', get_lang('FlatView'), '', ICON_SIZE_MEDIUM) . '</a>';
+            $$actionsLeft .= '<a href="gradebook_flatview.php?'.$my_api_cidreq.'&selectcat='.$catobj->get_id().'">'.
+                Display::return_icon('stats.png', get_lang('FlatView'), '', ICON_SIZE_MEDIUM).'</a>';
         }
 
-        if (api_is_allowed_to_edit(null, true)){
-            echo $toolbar = Display::toolbarAction('gradebook-actions', array(0 => $actionsLeft, 1 => $actionsRight ));
+        if (api_is_allowed_to_edit(null, true)) {
+            echo $toolbar = Display::toolbarAction('gradebook-actions', array(0 => $actionsLeft, 1 => $actionsRight));
         }
 
         if (api_is_allowed_to_edit(null, true)) {
             $weight = intval($catobj->get_weight()) > 0 ? $catobj->get_weight() : 0;
-            $weight = '<strong>' . get_lang('TotalWeight') . ' : </strong>' . $weight;
+            $weight = '<strong>'.get_lang('TotalWeight').' : </strong>'.$weight;
 
             $min_certification = (intval($catobj->get_certificate_min_score() > 0) ? $catobj->get_certificate_min_score() : 0);
-            $min_certification = get_lang('CertificateMinScore') . ' : ' . $min_certification;
-            $edit_icon = '<a href="gradebook_edit_cat.php?editcat=' . $catobj->get_id() . '&amp;cidReq=' . $catobj->get_course_code() . '&id_session='.$catobj->get_session_id(). '">' .
-                Display::return_icon('edit.png', get_lang('Edit'), array(), ICON_SIZE_SMALL) . '</a>';
+            $min_certification = get_lang('CertificateMinScore').' : '.$min_certification;
+            $edit_icon = '<a href="gradebook_edit_cat.php?editcat='.$catobj->get_id().'&amp;cidReq='.$catobj->get_course_code().'&id_session='.$catobj->get_session_id().'">'.
+                Display::return_icon('edit.png', get_lang('Edit'), array(), ICON_SIZE_SMALL).'</a>';
             //$msg = Display::tag('h3', $weight.' - '.$min_certification);
-            $msg = $weight . ' - ' . $min_certification . $edit_icon;
+            $msg = $weight.' - '.$min_certification.$edit_icon;
             //@todo show description
-            $description = (($catobj->get_description() == "" || is_null($catobj->get_description())) ? '' : '<strong>' . get_lang('GradebookDescriptionLog') . '</strong>' . ': ' . $catobj->get_description());
+            $description = (($catobj->get_description() == "" || is_null($catobj->get_description())) ? '' : '<strong>'.get_lang('GradebookDescriptionLog').'</strong>'.': '.$catobj->get_description());
             Display::display_normal_message($msg, false);
             if (!empty($description)) {
                 echo Display::div($description, array());
@@ -673,24 +673,24 @@ 
             $cattotal = Category :: load(0);
             $scoretotal = $cattotal[0]->calc_score(api_get_user_id());
             $scoretotal_display = (isset($scoretotal) ? $scoredisplay->display_score($scoretotal, SCORE_PERCENT) : get_lang('NoResultsAvailable'));
-            $scoreinfo = get_lang('StatsStudent') . ' :<b> ' . $user['complete_name']. '</b><br />';
+            $scoreinfo = get_lang('StatsStudent').' :<b> '.$user['complete_name'].'</b><br />';
             if ((!$catobj->get_id() == '0') && (!isset($_GET['studentoverview'])) && (!isset($_GET['search'])))
-                $scoreinfo.= '<br />' . get_lang('TotalForThisCategory') . ' : <b>' . $scorecourse_display . '</b>';
-            $scoreinfo.= '<br />' . get_lang('Total') . ' : <b>' . $scoretotal_display . '</b>';
+                $scoreinfo .= '<br />'.get_lang('TotalForThisCategory').' : <b>'.$scorecourse_display.'</b>';
+            $scoreinfo .= '<br />'.get_lang('Total').' : <b>'.$scoretotal_display.'</b>';
             Display :: display_normal_message($scoreinfo, false);
         }
         // show navigation tree and buttons?
         $header = '<div class="actions">';
 
         if ($is_course_admin) {
-            $header .= '<a href="gradebook_flatview.php?' . api_get_cidreq() . '&selectcat=' . $catobj->get_id() . '">' . Display::return_icon('stats.png', get_lang('FlatView'), '', ICON_SIZE_MEDIUM) . '</a>';
-            $header .= '<a href="gradebook_scoring_system.php?' . api_get_cidreq() . '&selectcat=' . $catobj->get_id() . '">' . Display::return_icon('settings.png', get_lang('ScoreEdit'), '', ICON_SIZE_MEDIUM) . '</a>';
+            $header .= '<a href="gradebook_flatview.php?'.api_get_cidreq().'&selectcat='.$catobj->get_id().'">'.Display::return_icon('stats.png', get_lang('FlatView'), '', ICON_SIZE_MEDIUM).'</a>';
+            $header .= '<a href="gradebook_scoring_system.php?'.api_get_cidreq().'&selectcat='.$catobj->get_id().'">'.Display::return_icon('settings.png', get_lang('ScoreEdit'), '', ICON_SIZE_MEDIUM).'</a>';
         } elseif (!(isset($_GET['studentoverview']))) {
-            $header .= '<a href="' . api_get_self() . '?' . api_get_cidreq() . '&studentoverview=&selectcat=' . $catobj->get_id() . '">' . Display::return_icon('view_list.gif', get_lang('FlatView')) . ' ' . get_lang('FlatView') . '</a>';
+            $header .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&studentoverview=&selectcat='.$catobj->get_id().'">'.Display::return_icon('view_list.gif', get_lang('FlatView')).' '.get_lang('FlatView').'</a>';
         } else {
-            $header .= '<a href="' . api_get_self() . '?' . api_get_cidreq() . '&studentoverview=&exportpdf=&selectcat=' . $catobj->get_id() . '" target="_blank">' . Display::return_icon('pdf.png', get_lang('ExportPDF'), '', ICON_SIZE_MEDIUM) . '</a>';
+            $header .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&studentoverview=&exportpdf=&selectcat='.$catobj->get_id().'" target="_blank">'.Display::return_icon('pdf.png', get_lang('ExportPDF'), '', ICON_SIZE_MEDIUM).'</a>';
         }
-        $header.='</div>';
+        $header .= '</div>';
         echo $header;
     }
 
@@ -717,8 +717,8 @@ 
             $item = $evals_links[$count];
             $score = $item->calc_score($user_id);
             $my_score_denom = ($score[1] == 0) ? 1 : $score[1];
-            $item_value+=$score[0] / $my_score_denom * $item->get_weight();
-            $item_total+=$item->get_weight();
+            $item_value += $score[0] / $my_score_denom * $item->get_weight();
+            $item_total += $item->get_weight();
             //$row[] = $scoredisplay->display_score($score,SCORE_DIV_PERCENT);
         }
         $item_value = number_format($item_value, 2, '.', ' ');
@@ -733,17 +733,17 @@ 
         $imageUrl = UserManager::getUserPicture($userid);
 
         $info = '<div class="row"><div class="col-md-3">';
-        $info .= '<div class="thumbnail"><img src="' . $imageUrl . '" /></div>';
+        $info .= '<div class="thumbnail"><img src="'.$imageUrl.'" /></div>';
         $info .= '</div>';
         $info .= '<div class="col-md-6">';
-        $info .= get_lang('Name') . ' :  <a target="_blank" href="' . api_get_path(WEB_CODE_PATH) . 'social/profile.php?u=' . $userid . '"> ' .
-            $user['complete_name'] . '</a><br />';
+        $info .= get_lang('Name').' :  <a target="_blank" href="'.api_get_path(WEB_CODE_PATH).'social/profile.php?u='.$userid.'"> '.
+            $user['complete_name'].'</a><br />';
 
         if (api_get_setting('show_email_addresses') == 'true') {
-            $info .= get_lang('Email') . ' : <a href="mailto:' . $user['email'] . '">' . $user['email'] . '</a><br />';
+            $info .= get_lang('Email').' : <a href="mailto:'.$user['email'].'">'.$user['email'].'</a><br />';
         }
 
-        $info .= get_lang('TotalUser') . ' : <b>' . $scorecourse_display . '</b>';
+        $info .= get_lang('TotalUser').' : <b>'.$scorecourse_display.'</b>';
         $info .= '</div>';
         $info .= '</div>';