MultiSelect in rails with Collection_select

Model1
    attr_accessible :model2s, :model2_ids
    has_many :model2s

Model2
   belongs_to :Model1



1. Have a model with attr_accessible :model2_ids

2. f.collection_select :model2_ids , Model2.all, :id, :name, {},{:multiple=>true,:size=>5}

The trick is "model2_ids"

Thats it !

JQuery on Rails 3.0.11

Steps to replace Prototype with Jquery

1. open Gem File
2. include gem 'jquery-rails'
3. bundle install in your rails app directory
4. bundle show jquery-rails
5. rails generate jquery:install [--ui]

If you get invalid spec error while doing bundle install, you could do one of the following
1. Update ruby gems to the latest version
     a. gem update --system

or

1. Modify the erroneous gem spec reported
    a. Open the file , look for the reported data format error and remove all the time section
          example : 23-10-12 00:00.000000000z   to  23-10-12

That's it !

ROR: Multiple references to the same table in the parent table

class Address < ActiveRecord::Base
  has_many :customersend

class Customer < ActiveRecord::Base
  belongs_to :billing_address, :class_name => 'Address', :foreign_key => 'billing_address_id'
  belongs_to :shipping_address, :class_name => 'Address', :foreign_key => 'shipping_address_id'
end

Source : Linky

Call Stored Proc from Java with sql types in Stored Proc Call

        final String typeName = "T_ALL_RECORD";
        final String typeTableName = "T_ALL_RECORDS";

        // Get a description of your type (Oracle specific)
        final StructDescriptor structDescriptor = StructDescriptor.createDescriptor(typeName.toUpperCase(), connection);        
        final ResultSetMetaData metaData = structDescriptor.getMetaData();

        // Call the procedure (or whatever else) that returns the table of a custom type
        CallableStatement cs = connection.prepareCall("{call ult_pkg.get_data_Q1(?, ?)}");
        cs.setString(1, "the_id");
        // Result is an java.sql.Array...
        cs.registerOutParameter(2, Types.ARRAY, typeTableName);     
        cs.execute();

http://stackoverflow.com/questions/11621638/how-to-call-procedure-with-out-parameter-as-table-type-from-a-java-class

Create EXE for java apps

Launch4j Executable Wrapper

http://sourceforge.net/projects/launch4j/#screenshots
Launch4j is a cross-platform tool for wrapping Java applications distributed as jars in lightweight Windows native executables. The executable can be configured to search for a certain JRE version or use a bundled one, and it's possible to set runtime options, like the initial/max heap size. The wrapper also provides better user experience through an application icon, a native pre-JRE splash screen, a custom process name, and a Java download page in case the appropriate JRE cannot be found.

Tortoise SVN asks for password repeatedly!

Tortoise SVN
right click on desktop -> Tortoise SVN-> settings -> saved data -> authentication data (button press 'clear') !
try logging in now again !

Text Overlapping over image ( JSF/Facelets )

CSS:
#_1234bg


{

display:block;

position:absolute;

z-index:0;



}

.c1{width:290px;}

.c2{width:140px;}

.c3{width:100px;}

.c1a{width:130px;padding-left:160px;font-size:10px;font-weight:bold;}

.c2a{width:50px;padding-left:91px;font-size:10px;font-weight:bolder;padding-top: 10px}

.c3a{padding-left:40px;}
 
 
JSF CODE :
<  t:div style="width:800px;height:700px;">
<  t:div id="_1234bg">
<  h:graphicImage id="image1" alt="aa" width="701" value="#{facesContext.externalContext.requestContextPath}/css/wm.png" />



<  h:panelGrid style="position:absolute;font-size:large;margin-left:15px;margin-top:25px;" columns="3" columnClasses="c1, c2, c3 c3a">

<  h:outputText value=" "/>

<  h:outputText value="#{homeManagedBean.account.cy.box1}"/>

<  h:outputText value="#{homeManagedBean.curryr}"/>



<  t:div>





This is specially useful when the user wants to print text overlaid on a background image.