Bug 132103 No objects under Context in palette when scripting a data set
Steps to reproduce: 1.New a data set and select it 2.Swith to script view, choose "onFetch" and open palette Expected result: Objects:this, row and reportContext should be given under Context And other objects available for other methods(e.g. BeforeOpen) should be there as well. Actual result: Nothing under Context The relative bug is #126110
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
{
		Assert.isNotNull( columnName );
		if ( StringUtil.isBlank( columnName ) )
		{
			return null;
		}
		return IReportElementConstants.DATA_COLUMN_PREFIX
				+ "[\"" + DEUtil.escape( columnName ) + "\"]";
	}
	/**
	 * Relativizes the path against this base path.
	 * 
	 * @param basePath
	 *            the base path
	 * @param path
	 *            the path to convert
	 * @return The relative path based on the base path if it is possible, or
	 *         the original path
	 * 
	 */
	public static String getRelativedPath( String basePath, String path )
	{
		return URIUtil.getRelativePath( new File( basePath ).getParent( ), path );
	}
	/**
	 * Returns the handle of the action of the given element.
	 * 
	 * @param element
	 *            the element handle
	 * @return the handle of the action, or null if the element is not a proper