Refactored Date columns to have a common base

src/scripts/js/es6/common/vuecomponents/attracttable/columns/TaskDueDate.js

@@ -1,5 +1,4 @@
-let ColumnBase = pillar.vuecomponents.table.columns.ColumnBase;
-let CellPrettyDate = pillar.vuecomponents.table.cells.renderer.CellPrettyDate;
+let DateColumnBase = pillar.vuecomponents.table.columns.DateColumnBase;
 
 function firstDate(prevDate, task) {
     let candidate = task.properties.due_date;
@@ -29,11 +28,7 @@ function nextDate(prevDate, task) {
     return prevDate;
 }
 
-class DueDate extends ColumnBase {
-    getCellRenderer(rowObject) {
-        return CellPrettyDate.options.name;
-    }
-
+class DueDate extends DateColumnBase {
     getCellClasses(dueDate, rowObject) {
         let classes = super.getCellClasses(dueDate, rowObject);
         let isPostDueDate = false;
@@ -43,20 +38,6 @@ class DueDate extends ColumnBase {
         classes['warning'] = isPostDueDate;
         return classes;
     }
-
-    compareRows(rowObject1, rowObject2) {
-        let dueDateStr1 = this.getRawCellValue(rowObject1);
-        let dueDateStr2 = this.getRawCellValue(rowObject2);
-        if (dueDateStr1 === dueDateStr2) return 0;
-        if (dueDateStr1 && dueDateStr2) {
-            return new Date(dueDateStr1) < new Date(dueDateStr2) ? -1 : 1;
-        }
-        return dueDateStr1 ? -1 : 1;
-    }
-    
-    getCellTitle(rawCellValue, rowObject) {
-        return rawCellValue;
-    }
 }
 
 export class FirstTaskDueDate extends DueDate {