Sort term lists (#40)

* sort the term dropdown on the main account admin page

* sort the term dropdown on the main account admin page

* better sorting

* sort the numeric labels separately from the text labels

* also sort the term table on the Terms page

* Simplified code; added comments; moved Ongoing term to position #2 in the list; fixed detection of the presence of the enrollment_term_id select list.

js/sort_term_dropdowns.js

@@ -0,0 +1,85 @@
+
+function sortTermDropdown(){
+  var termSelect = $('select[name="enrollment_term_id"]');
+  var selectedOption = $(termSelect).val();
+  var termSelectList = $('option', termSelect);
+  var re_letter = /^[A-Za-z]/;
+  var re_number = /^[0-9]/;
+
+  var topList = new Array();
+  var middleList = new Array();
+  var bottomList = new Array();
+
+  for (var i=0; i < termSelectList.length; i++) {
+    if (termSelectList[i].label == 'All Terms') {
+      // this should be the first item in the list
+      topList.unshift(termSelectList[i]);
+    }
+    else if (termSelectList[i].label == 'Ongoing') {
+      // this should be the second item in the list
+      topList.push(termSelectList[i]);
+    }
+    else if (termSelectList[i].label.match(re_letter)) {
+      // all other items that start with a letter will go at the bottom, sorted ascending
+      bottomList.push(termSelectList[i]);
+    }
+    else {
+      // all of the items that start with a number will go below the first two items, sorted descending
+      middleList.push(termSelectList[i]);
+    }
+  }
+
+  var newList = topList.concat(
+    middleList.sort(function(a,b){
+      return (a.label >= b.label) ? -1 : 1;
+    }),
+    bottomList.sort(function(a,b){
+      return (a.label >= b.label) ? 1 : -1;
+    })
+  );
+  $(termSelect).html(newList).val(selectedOption);
+}
+
+function sortTermTable(){
+  var termRowList = $('table#terms tbody tr.term').get();
+  var re_letter = /^[A-Za-z]/;
+  var re_number = /^[0-9]/;
+  var topList = new Array;
+  var bottomList = new Array;
+
+  for (var i=0; i < termRowList.length; i++) {
+    if (termRowList[i].getElementsByClassName('name')[0].innerHTML.match(re_number)) {
+      // all of the term labels that start with a number are at the top, sorted descending
+      topList.push(termRowList[i]);
+    }
+    else {
+      // term labels that start with a letter are at the bottom, sorted ascending
+      bottomList.push(termRowList[i]);
+    }
+  }
+
+  var newList = topList.sort(function(a,b){
+      var alabel = a.getElementsByClassName('name')[0].innerHTML;
+      var blabel = b.getElementsByClassName('name')[0].innerHTML;
+
+      return (alabel >= blabel) ? -1 : 1;
+    }).concat(
+      bottomList.sort(function(a,b){
+        var alabel = a.getElementsByClassName('name')[0].innerHTML;
+        var blabel = b.getElementsByClassName('name')[0].innerHTML;
+        return (alabel >= blabel) ? 1 : -1;
+      })
+    );
+
+  $('table#terms').children('tbody').append(newList);
+
+}
+
+$(document).ready(function() {
+  if ($('select[name="enrollment_term_id"]').length > 0) {
+    sortTermDropdown();
+  }
+  if ($('table#terms').length > 0) {
+    sortTermTable();
+  }
+});