Thursday, February 4, 2010

jQuery/Plugin : Problem with Add/Remove row for Tablesorter Plugin

For using the jQuery tablesorter (http://tablesorter.com/docs/ ), the table will not refresh correctly if you use the additional pager plugin.

To solve this problem, you have to add in 2 customised functions/events to take care of the row adding/removal.

Add the following 2 functions to the tablesoter javascript file.

function addRow(table, newRow){

//Rebuild html table from the modified rowsCopy
$.tablesorter.clearTableBody(table);

if (table.config.rowsCopy!=undefined)
$.each(table.config.rowsCopy, function() {
$(table).find('tbody:first').append($(this));
});

//Append new row to the HTML table
$(table).find('tbody:first').append(newRow);

//Update call will rebuild tablesorter.cache from the existing HTML table
$(table).trigger("update");
//With pager plugin, this will call appender function in pager
//In turn, it will redraw the table with pagination
$(table).trigger("appendCache");
//Retain sorting if any
$(table).trigger("sorton",[table.config.sortList]);
}

function removeRow(table, rowId){
//Remove the selected row from pager.rowsCopy
var newRowsCopy = $.grep(table.config.rowsCopy, function(n, i){
return ($(n).attr('id')!=rowId);
});

table.config.rowsCopy = newRowsCopy;

//Rebuild html table from the modified rowsCopy
$.tablesorter.clearTableBody(table);

if (table.config.rowsCopy!=undefined)
$.each(table.config.rowsCopy, function() {
$(table).find('tbody:first').append($(this));
});

//Update call will rebuild tablesorter.cache from the existing HTML table
$(table).trigger("update");
//With pager plugin, this will call appender function in pager
//In turn, it will redraw the table with pagination
$(table).trigger("appendCache");
}



You can bind the functions 2 customised events as follows:
   $this.bind("addRow",function(event,newRow){
addRow(this,newRow);
});

$this.bind("removeRow",function(event,rowId){
removeRow(this,rowId);
});



Finally you can call the events from your page as follows:
  $(sortTable).trigger("removeRow",[id for the row to be removed]);

var newTr = $('<tr><td>New Row</td></tr>');
$(sortTable).trigger("addRow",[newTr]);

Deploy Netbeans 6.1 Web Application to Tomcat 5.5

Netbeans 6.1 come bundles with Tomcat 6.0. So you will encounter problem if you upload the war file directly to your production Tomcat 5.5 server.

Reason being the web.xml in you war file use version 2.5 XML declaration but Tomcat 5.5 uses version 2.4. The web.xml is located at
<catalina-home>/webapps/<your apps>/WEB_INF

Look at the first two lines of the web.xml, you shall see something like the following

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">


Whereas in Tomcat 5.5, the two lines shall be replaced with the following

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

After which, you have to clear the cache of compiled JSP file.
<catalina-home>\work\Catalina\<your apps>

Remove the whole folder with name "_" (underscore). This is the compiled JSP file (java class) by tomcat and is compiled only once when the jsp page is accessed/requested for the first time.

You have to stop the tomcat before removing the folder.
The folder will be rebuild automatically after you have restarted the tomcat and the jsp is being accessed.

Thursday, January 21, 2010

Install OSX86 on Dell Vostro 220S

Background :
1. OSX86 : iAKTOS V7 - Leopard 10.5.7

2. Dell Vostro Slim 220s
- Chipset : Intel G45
- Audio : 82801JI (ICH10 Family) HD Audio
- Video : Intel GMA X4500HD
- LAN : Realtek RTL8111/8168B

3. Reference : http://www.insanelymac.com/forum/lofiversion/index.php/t149504.html



Installation Instructions:
1. Load iAktos V7 DVD

2. At prompt, press F8 and type in cpus=1 (Otherwise, you are not able to boot up)

3. Customised Options
a. X86 Patches -> ACPI -> X86 ACPI

b. X86 Patches -> Disabler (uncheck, it is checked by default)

c. Drivers -> VGA -> Intel -> EFI String for Intel

d. Drivers -> System -> SATA/IDE -> AHCI
(must set bios with SATA = AHCI, else you will get "waiting for root device
error during boot up later after finish the installation)

e. Drivers -> System -> IntelSpeedStep -> Choose both

f. Drivers -> System -> USB -> checked

g. Drivers -> System -> Sound -> AppleAzalia
( I choose the default Voodoo HDA driver before and ran into problem during boot up)

g. Drivers -> System -> PS/2 Mouse/Keyboard -> Apple PS/2 Driver

The rest just leave it as default.

I am able to make it work with the above installation, network proven working.


However, it tooks quite long to boot up
Going to test installing Xcode.

Wednesday, January 6, 2010

Project : MyERA Portal

Project : MyERA Portal
Platform : JSP / Apache Tomcat
Company : ERA Realty Network Pte Ltd



This is the first web application that I developed using JSP + Tomcat.


It is designed to serve as a one-stop portal for our property agents initially and grows to assists our staff as well todate.


This is really a 'break-through' for our company as it is the first web application launched to provide various online services to our agents and staff.






Thorough the portal, our agent can


1. Check their transactions online
2. Print their commission payment voucher
3. Check past transaction sales price
4. Check property available for sales/rental
5. Updated property news
6. Company annoucements
7. Download electronic copy of various documents/forms






There is a lot more that agent can benefit from the portal and I am consistently improving it to provide more services online.



Amid improving the portal, I found that there are some services that are also useful to our staff by acessing the same data source. Therefore, I added in some services for the staff to replace their manual workflow.



More importantly, our management can retrieve various reports online anytime anywhere now compare to last time whereby I need to prepare for them manually upon request.



In fact, I am very satisfied and proud this portal as it not only benefit our agents in terms of convenience and efficiency but also streamline our office workflow by automate it to save manpower as well.


For example, last time we need dedicated manpower to update some of the details on our company website http://www.era.com.sg/ on a regular basis. It is a very routine and tedious tasks whereby the department concern need to compile the updated information and pass it to the IT for converting to the web pages. In the end, I created a module so that the staff in charge can update the information directly without going through IT and it will be reflected online immediately. Through many of such modules, I am able to cut down uncessary manpower wastage on these routine tasks.



Well, I have more ideas to make it better but.....


Anyway, the next improvement in the pipeline is to implement SSL on the website to make it secure!

Friday, December 18, 2009

Journey Start : On way up to Mt KK - Part I (18 Dec 09)

[18 Dec 09]

Waked up early in the morning as we are leaving to the KK park HQ to start climbing.

First and foremost, make sure you have booked a room with Laban Rata or Pendant Hut, otherwise you are not allowed to climb the moutain.


1. Firstly, you can deposit your luggage at the HQ, Sutera Santuary Lodge at RM10/luggage. Make sure you packed only the necessary items as you will be carrying them for the next 6km uphill.


2. Next, you have to register at the office to get your climbing permit and engage a moutain guide.


3. After which, remember to collect your free packed lunch from the Sutera Santuary Cafeteria. There is a staircase opposite the luggage deposit leading downward to the cafeteria (behind the trail map sign board). There are 2 companies who provide accommodation up in Mt KK. One is Laban Rata by Sutera Sanctuary and another is Pendant Hut by Moutain Torq. You can get the packed lunch from the cafeteria only if you book thru the Sutera Sanctuary. As whether Mountain Torq do provide lunch or not, I am not too sure because I learned about it only after I returned from the peak :)


4. Wait for your moutain guide and there will be a van to send you to the Timpohon Gate, the starting point of the 6km trail.






Necessary Items Checklist:

(I). Clothes for changing and those to keep you warm. Bring extra pairs especially the socks as you will get wet when you reached Laban Rata.

(II). Gloves - Strongly recommended if you going to the summit. It is very cold up there. However, if you going to the Ferrata, then you may prepare another thiner pair gloves so that it is easier to grap the rope.

(III). Head light with extra batteries - Strongly recommended and preferred over a torch light if you going to climb the summit

(IV). Food - For you to consume along the trail and when you rest at Laban Rata. Can bring energy/chocalate bar, 3-in-1 Coffee, instant noodle etc, coz these items are very costly up there.

(V). Hiking pole/Walking stick - Can buy a cheap walking stick at RM3 from the guide if you did not bring your own hiking pole. Personally i did not use it for the 6Km trail up/down but it does help me when climbing the 2.7km trail to the summit.

(VI). Poncho - A must unless you don't mind to get wet :).


Transportation costs (according to my tour guide, to be verified):

1 KKIA (Airport) to Kota Kinabalu Park HQ : RM180/one way per 8-seater taxi (Toyota Unser). Can accommodate 7 passengers.

2. Kota Kinabalu Park HQ to KK city : RM150/one way

There is also long distance bus available but I did not check for the details.
However, I did see a "Transportation Office" next to the luggage deposit, not sure if it is relevant.

Album:

18 Dec 09 (Mt KK - Up to Laban Rata)

Thursday, December 17, 2009

Arrival At Kota Kinabalu (17 Dec 2009)

[17 Dec 2009]

Flight delayed. Bad impression with Jestar for travelling first time with this airline.

Well, budget airline...

Reached KK about 3pm, traffic jam all the way from the airport to the KK city.
Have a short break for lunch in the city before continue for another 2 hours journey to KK park.

One thing i notice about KK is that there are a lot of roundabouts. Intead of having traffic lights at each junction, you will find roundabout instead. I guessed this is what cause the traffic jam. Because if those "timid" or "courteous" drivers ahead give way to other motorist entering the roundabout, those who queue behind got to wait infinitely.

Personally, i think round about is not suitable for junction with heavy traffic.

Lol, who know i may be wrong.

-----------
Well, finally arrived at our hotel outside the KK park HQ. The sky looks dark in the night but it is only around 6pm in the evening. Btw, the hotel is located around 1800m a.s.l.











Photos album:
17 Dec 09 (Rose Cabin Hotel)

At Changi Terminal 1 - Before Departure (17 Dec 2009)

Oops, heavy raining early in the morning. Hopefully, the weather is clear at KK.

Going to Mount KK. Climbing will start on Friday morning, reach summit early morning on Saturday to catch the sunrise.

Can't wait to start the journey. Another 1 hour to take off. haha.

To be continued...