STS: Subclipse 1.8.x

Normally STS equipped with Subclipse 1.6.x, uninstall current version and update to 1.8.x instead.

http://sliksvn.com/en/download//

Rujukan: Json + Spring 3

Sedang mengkaji beberapa pilihan yang ada untuk integrasi Json dan Spring 3.05

1. http://blog.safaribooksonline.com/2012/03/28/spring-mvc-tip-returning-json-from-a-spring-controller/
2. http://www.mkyong.com/spring-mvc/spring-3-mvc-and-json-example/

STS: Web Project Settings >> Context root

Something weird happen when migrate ISAS to APR.
The root still point to ISAS while APR was expected.

DOJO 1.7: Compound or Composite Key in DataGrid + JsonRestStore

Isu: 

Penggunaan id komposit pada property idAttribute, penggunaan idAttribute yang salah akan menyebabkan data yang berulang dipaparkan.

Framework: 

Spring 3 + DOJO 1.7 + JPA


dojox.data.JsonRestStore
dojox.grid.DataGrid

Penyelesaian:

1. Gunakan fungsi toJson() dalam kelas domain/POJO/model.


import flexjson.JSONSerializer;


...



public String toJson() {
     return new JSONSerializer().exclude("*.class").serialize(this);
}




2. Umpukkan nilai kepada property idAttribute. Contoh:

var poStore = new JsonRestStore({

target: "${listUrl}/ajaxUnits/${blockId}?", 

idAttribute:"id.toJson" , 

syncMode: true });

Dalam contoh di atas, id komposit itu dinamakan sebagai "id" di dalam kelas domain/POJO/objek dengan getter dan setter-nya. Contoh:

@Valid
@EmbeddedId
private CollegeHouseMainPK id;



public CollegeHouseMainPK getId() {
return this.id;
}


public void setId(CollegeHouseMainPK id) {
this.id = id;
}

Keyword yang digunakan untuk penyelesaian ini:

• prevent duplicate data in datagrid
• JsonRestStore idAttribute composite key
• JsonRestStore identifier
• redundant json data dojo datagrid

Penasihat

• Osman Sulaiman, IKCM Sdn Bhd.

DOJO 1.7: Child properties access on JSON + DataGrid

Katakan kita diberi data JSON:

[{"id":{"chmCompanyCode":"U","chmCollegeCode":"BMI","chmBlockCode":"SB-A","chmHouseCode":"1F-18"},"chmActive":"Y","chmCapacity":4,"chmCurCapacity":4,"chmFreeCapacity":0,"chmHouseDesc":"LEVEL 1","chmLevel":1}]


Untuk akses id.chmHouseCode dan set pada layout untuk datagrid:

gridLayout = [
{ name: "id", field: "id"},
{ name: "Code", field: "_item", formatter:function(item){return item.id.chmHouseCode;}},
{ name: "Name", field: "chmHouseDesc"},
{ name: "Capacity", field: "chmCapacity"}];


Cuma ubah BLUE FONT sahaja, yang lain maintain.


Masalahnya, tak boleh sorting apabila gunakan _item atau get.

DOJO 1.7: DataGrid + JsonRestStore

Framework: SPRING 3.06 + DOJO 1.7

<script type="text/javascript">
function prepareDatagrid(){
require(['dojox/grid/DataGrid', 'dojox/data/JsonRestStore'],
   function(DataGrid, JsonRestStore)
{

console.log("showCollegeBlock.jsp");
console.log("${urlCollegeHouses}");

gridLayout = [
             { name: 'Code', field: 'id.chmHouseCode', editable: true},
             { name: 'Name', field: 'chmHouseDesc'},
             { name: 'Capacity', field: 'chmCapacity'}];
           

var poStore = new JsonRestStore({target: "${urlCollegeHouses}/ajaxUnits/${hostelId}?" });

// use the query results returned from the server
/*create a new grid*/
   var grid = new DataGrid({
       id: 'grid',
       store: poStore,
       structure: gridLayout,
       rowSelector: '20px'});


   /*append the new grid to the div*/
   grid.placeAt("gridDiv");
   /*Call startup() to render the grid*/
   grid.startup();
 
});}
</script>

Selain itu boleh guna kaedah manual fetching:


poStore.fetch({
onComplete: function(items){
grid = new dojox.grid.DataGrid({
store: poStore,
items: items,
structure: gridLayout
}, "gridDiv");
  
grid.startup();
}
});

SPRING 3.06: Form tidak binding ke domain

Framewok: SPRING 3.06
DB: MySQL 5
Bahasa: Java 6

Isu:

Value yang dihantar ke dalam form (JSP) menggunakan HIDDEN tag tidak bind automatik ke domain.

Punca:

• 2012-07-09: Tiada setter untuk property yang terlibat pada domain.