加入課程清單資料快取機制

.foreverignore

@@ -1,2 +1,3 @@
 **/public/**
 **/.git/**
+**/cache/**

.gitignore

@@ -1,3 +1,4 @@
 .*
+cache
 node_modules
 ext-4.0.7-gpl

app.js

@@ -1,15 +1,29 @@
-
 /**
-* Module dependencies.
-*/
+ * 網路選課系統
+ * Powerd by ExtJS + Node.js + MongoDB
+ *
+ * @author lyhcode@gmail.com
+ */
+
+
+// Module dependencies.
 
 var express = require('express')
   , routes = require('./routes')
+  , cache = require('connect-cache')
   , mongo = require('mongoskin')
   , db = mongo.db('guest:guest@staff.mongohq.com:10028/acad_taj?auto_reconnect=true&poolSize=5')
   , mongoStore = require('connect-mongodb');
 
-var app = module.exports = express.createServer();
+// Express web server
+
+var app = module.exports = express.createServer(
+  cache({rules: [
+    {regex: /\/cached\/.*/, ttl: 60*60*1000}
+  ]})
+);
+
+// URL prefix setup for additional path like iisnode
 
 var urlprefix = ''
 

package.json

@@ -17,5 +17,6 @@
       "express": "latest"
     , "mongoskin": "latest"
     , "connect-mongodb": "latest"
+    , "connect-cache": "latest"
   }
 }

public/modules/SchoolCourse/Store0.js

@@ -12,8 +12,9 @@ Ext.define('Module.SchoolCourse.Store0', {
     ],
     proxy: {
         type: 'ajax',
-        url: __SERVICE_URL + '/service/listall.json',
+        url: __SERVICE_URL + '/service/cached/listall.json',
         method: 'GET',
+        noCache: false,
         reader: {
             type: 'array'
         }

public/portal.js

@@ -125,12 +125,17 @@ Ext.onReady(function(){
                         '是否登出系統',
                         '<span class="portal-message">請按「是」確認登出系統，按「否」則取消！</span>',
                         function (btn, text) {
-                            if (btn=='yes') {
-                                 location.href = 'login.html';
+                            if (btn == 'yes') {
+                                Ext.Ajax.request({
+                                    url: __SERVICE_URL + '/service/logout.json',
+                                    method: 'GET',
+                                    success: function(response) {
+                                         location.href = 'login.html';
+                                    }
+                                });
                             }
                         }
                     );
-
                 }
             }],
             items: [{
@@ -229,18 +234,29 @@ Ext.onReady(function(){
         success: function(response) {
             var obj = Ext.JSON.decode(response.responseText);
 
-            if (obj.data) {
-                ClientSession.user = obj.data.user;
+            if (!obj.success) {
+                Ext.Msg.alert(
+                    '發生錯誤',
+                    '請重新登入再操作一次！',
+                    function() {
+                        location.href = 'login.html';
+                    }
+                );
+            }
+            else {
+                if (obj.data) {
+                    ClientSession.user = obj.data.user;
 
-                //更新使用者資訊列
-                if (obj.data.user) {
-                    var user = obj.data.user;
-                    var cmp = Ext.getCmp('userinfo');
-                    cmp.setText(user.chtname+' '+user.studentno+' '+user.classname);
+                    //更新使用者資訊列
+                    if (obj.data.user) {
+                        var user = obj.data.user;
+                        var cmp = Ext.getCmp('userinfo');
+                        cmp.setText(user.chtname+' '+user.studentno+' '+user.classname);
+                    }
                 }
-            }
 
-            completeJob(0);
+                completeJob(0);
+            }
         }
     });
 

service/routes/listall.js

@@ -1,4 +1,4 @@
-app.get(urlprefix + '/service/listall.json', function(req, res) {
+app.get(urlprefix + '/service/cached/listall.json', function(req, res) {
     res.charset = 'UTF-8';
     res.contentType('application/json');
 
@@ -8,6 +8,8 @@ app.get(urlprefix + '/service/listall.json', function(req, res) {
         'roomname':1, 'maxcount':1, 'selectedcount': 1,
         'unitid': 1, 'collegeid': 1, 'studytype': 1
     };
+
+    console.log('Query tSemesterCusWeb from MongoDB '+new Date());
 
     db.collection('tSemesterCusWeb').find({}, fields).toArray(function(err, rows){
         //res.send(JSON.stringify(rows));

service/routes/listselected.js

@@ -9,18 +9,20 @@ app.get(urlprefix + '/service/listselected.json', function(req, res) {
     //學生資料（SESSION）
     var user = req.session.user;
 
-    //查詢條件
-    var where = {
-        studentid: user.studentid
-    };
+    if (user) {
+        //查詢條件
+        var where = {
+            studentid: user.studentid
+        };
 
-    //SELECT * FROM tSelectedSemCus WHERE studentid=?
-    db.collection('tSelectedSemCus').find(where).toArray(function(err, rows){
-        var arr = new Array();
-        rows.forEach(function(item) {
-            arr.push(item.semcourseid);
+        //SELECT * FROM tSelectedSemCus WHERE studentid=?
+        db.collection('tSelectedSemCus').find(where).toArray(function(err, rows){
+            var arr = new Array();
+            rows.forEach(function(item) {
+                arr.push(item.semcourseid);
+            });
+            res.send(JSON.stringify(arr));
+            res.end();
         });
-        res.send(JSON.stringify(arr));
-        res.end();
-    });
+    }
 });

service/routes/logout.js

@@ -0,0 +1,10 @@
+app.get(urlprefix + '/service/logout.json', function(req, res) {
+    res.charset = 'UTF-8';
+    res.contentType('application/json');
+
+    req.session.user = null;
+
+    res.send(JSON.stringify({
+        success: true
+    }));
+});

service/routes/readdata.js

@@ -1,9 +1,9 @@
 app.get(urlprefix + '/service/readdata.json', function(req, res) {
     res.charset = 'UTF-8';
     res.contentType('application/json');
-        
+
     var results = {
-        success: true,
+        success: req.session.user?true:false,
         data: {
             user: req.session.user
         }