Add default renders for new columns type

app/assets/javascripts/repositories/renderers/view_renderers.js

@@ -1,3 +1,4 @@
+
 $.fn.dataTable.render.RepositoryAssetValue = function(data) {
   var asset = data.data;
   return `
@@ -14,11 +15,22 @@ $.fn.dataTable.render.RepositoryAssetValue = function(data) {
   `;
 };
 
+$.fn.dataTable.render.defaultRepositoryAssetValue = function() {
+  return '';
+};
 
 $.fn.dataTable.render.RepositoryTextValue = function(data) {
   return data.data;
 };
 
+$.fn.dataTable.render.defaultRepositoryTextValue = function() {
+  return '';
+};
+
 $.fn.dataTable.render.RepositoryListValue = function(data) {
   return data.data;
 };
+
+$.fn.dataTable.render.defaultRepositoryListValue = function() {
+  return '';
+};

app/assets/javascripts/repositories/repository_datatable.js

@@ -531,16 +531,20 @@ var RepositoryDatatable = (function(global) {
       },
       order: $(TABLE_ID).data('default-order'),
       columns: (function() {
-        var numOfColumns = $(TABLE_ID).data('num-columns');
         var columns = $(TABLE_ID).data('default-table-columns');
-        for (let i = 0; i < numOfColumns; i += 1) {
+        var customColumns = $(TABLE_ID).find('thead th[data-type]');
-          if (columns[i] === undefined) {
+        for (let i = 0; i < columns; i += 1) {
-            // This should only occur for custom columns
-            columns[i] = { visible: true, searchable: true };
-          }
           columns[i].data = String(i);
           columns[i].defaultContent = '';
         }
+        customColumns.each((i, column) => {
+          columns.push({
+            visible: true,
+            searchable: true,
+            data: String(columns.length),
+            defaultContent: $.fn.dataTable.render['default' + column.dataset.type](column.id)
+          });
+        });
         return columns;
       }()),
       fnDrawCallback: function() {