Merge pull request #310 from hopesala/master

time span with dhms format sort

sorting/time-elapsed-dhms.js

@@ -0,0 +1,42 @@
+/**
+ * Created by caochenghua on 2016/12/22.
+ */
+
+/**
+ * When dealing with time elapsed, it is common to append a post fix
+ * such as d(day), h(hour), m(minute) or s(second) to a string in order to easily denote the brief duration
+ * of the time span from now. This plug-in allows sorting to take these
+ * indicates of size into account.
+ *
+ * A counterpart type detection plug-in is also available.
+ *
+ *  @name Time span
+ *  @summary Sort abbreviated time span correctly (2d 3h, 2h 8m, 3m 8s, 30s, etc)
+ *  @author Allan Jardine - datatables.net
+ *
+ *  @example
+ *    $('#example').DataTable( {
+ *       columnDefs: [
+ *         { type: 'time-elapsed-dhms', targets: 0 }
+ *       ]
+ *    } );
+ */
+
+
+jQuery.fn.dataTable.ext.type.order['time-elapsed-dhms-pre'] = function(data) {
+
+    var matches = data.match(/^(\d+(?:\.\d+)?)\s*([a-z]+)/i);
+    var multipliers = {
+        s: 1,
+        m: 60,
+        h: 3600,
+        d: 86400
+    };
+
+    if (matches) {
+        var multiplier = multipliers[matches[2].toLowerCase()];
+        return parseFloat(matches[1]) * multiplier;
+    } else {
+        return -1;
+    };
+};