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sasmita swain
adding one column in xisting database
12 de febrero de 2013 20:01
Respuesta

sasmita swain

Ranking: Regular Member

Mensajes: 185

Fecha de incorporación: 24 de febrero de 2012

Mensajes recientes

Hi

I want to add one more column in shopping category table..how to do by using expando

can you give example of this

Thanks

Sasmita
David H Nebinger
RE: adding one column in xisting database
12 de febrero de 2013 20:24
Respuesta

David H Nebinger

Community Moderator

Ranking: Liferay Legend

Mensajes: 11102

Fecha de incorporación: 1 de septiembre de 2006

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Every entity has an expando bridge that you can use to access extra values.

Use the XxxLocalServiceUtil to retrieve the entity that you want to add an expando value to.

Once you have the entity, you can use:

1
2 if (entity.getExpandoBridge().hasAttribute("MyAttribute")) {
3   entity.getExpandoBridge().getAttribute("MyAttribute");
4 }


This returns a Serializable instance which you can cast to your desired type.

To set the entity, you can use:

1
2 if (! entity.getExpandoBridge().hasAttribute("MyAttribute")) {
3   // add the entity definition with the type the value is.
4   entity.getExpandoBridge().addAttribute("MyAttribute", ExpandoColumnConstants.INTEGER);
5 }
6
7 // now set the value
8 entity.getExpandoBridge().setAttribute("MyAttribute", myValue);


myValue must be serializable.

QED.
sasmita swain
RE: adding one column in xisting database
12 de febrero de 2013 22:35
Respuesta

sasmita swain

Ranking: Regular Member

Mensajes: 185

Fecha de incorporación: 24 de febrero de 2012

Mensajes recientes

Thanks David

actually i create table like custom field in expando table and successfully adding column to expandocolumn table..

my code is:

public void init() throws PortletException {


ExpandoTable table = null;


long categoryId = Long.parseLong("10154");
try{
ExpandoTable existingTable=ExpandoTableLocalServiceUtil.getTable(45506);
/*table=ExpandoTableLocalServiceUtil.addDefaultTable(categoryId, ShoppingCategory.class.getName());*/
String tablename=existingTable.getName();
System.out.println("table name = " + tablename);
}catch (Exception e) {
e.printStackTrace();
}
ExpandoColumn column = null;
ExpandoRow row=null;

/*long tableId = table.getTableId();
System.out.println("tableId ="+tableId);
*/
try {

column = ExpandoColumnLocalServiceUtil.addColumn(10904, "decription1", ExpandoColumnConstants.STRING);
row=ExpandoRowLocalServiceUtil.addExpandoRow(row);
}

catch(DuplicateColumnNameException dcne) {


// Get the ExpandoColumn ("comments-astronauts")


try {
column = ExpandoColumnLocalServiceUtil.getColumn(10904, "decription1");
row=ExpandoRowLocalServiceUtil.getRow(11002);
} catch (SystemException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (PortalException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

} catch (PortalException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SystemException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}



super.init();
in jsp i hav 2 text fields.. i want to insert values in to expandovalues table..

Thanks

Sasmita





}
Siby Mathew
RE: adding one column in xisting database
14 de febrero de 2013 3:14
Respuesta

Siby Mathew

Ranking: Expert

Mensajes: 265

Fecha de incorporación: 4 de marzo de 2011

Mensajes recientes

Hi Sasmita,
David's code is also internally using the same API's that you are using.
You can use his code snippet as its simpler and more readable.

Also In my opinion, in your code, you should try to fetch the values first ...and then on the exception block, try to add new if not present.

Thanks,
Siby