add operation log query

@@ -7,6 +7,7 @@
 'use strict';
 
 import Router from 'koa-router';
+import moment from 'moment';
 
 import {
     OperationLogger
@@ -14,12 +15,46 @@ import {
 
 const r = new Router();
 
-r.get('/log', async (ctx) => {
+r.get('/log', async(ctx) => {
     await ctx.render('action/operation_log');
 });
 
-r.get('/log/query', async (ctx) => {
-    console.log(ctx.query);
+r.post('/log/query', async(ctx) => {
+
+    let q = ctx.request.body;
+
+    let start = parseInt(q.start || 0, 10);
+    let length = parseInt(q.length || 10, 10);
+    let draw = parseInt(q.draw, 10);
+
+    let sort = {time: -1};
+    if (q.order && q.order.length > 0) {
+        let col = q.order[0].column;
+        let dir = q.order[0].dir === 'desc' ? -1 : 1;
+
+        col = parseInt(col, 10);
+        if (q.columns && q.columns.length > col) {
+            sort = {};
+            sort[q.columns[col].data] = dir;
+        }
+    }
+
+    let logs = await OperationLogger.cfind({}).sort(sort).skip(start).limit(length).exec();
+    let total = await OperationLogger.count();
+
+    logs.forEach(l => {
+        l.username = l.user.username;
+        l.time = moment(l.time).format('YYYY-MM-DD HH:mm:ss.sss');
+        l.meta = JSON.stringify(l.meta || {});
+    });
+
+    ctx.body = {
+        draw: draw,
+        recordsTotal: total,
+        recordsFiltered: total,
+        data: logs
+    };
+
 });
 
 export default r;

@@ -48,7 +48,12 @@
             var env = $(this).parents('.panel').data('env');
             tables[env] = $(this).DataTable({
                 responsive: true,
-                ajax: '/operation/log/query',
+                processing: true,
+                serverSide: true,
+                ajax: {
+                    url: '/operation/log/query',
+                    type: "POST"
+                },
                 columns: [
                     {data: "username"},
                     {data: "time"},