The following forum message was posted by at http://sourceforge.net/projects/displaytag/forums/forum/249318/topic/3802012:
Hi! I have a problem sorting decorated values in a displayTag column. Here is the description of the \"sortProperty\" attribute of a column: name of the property in the bean specified in the parent table tag (via the \"name\" attribute) which will be used to sort values in the column. This can be used when the column body is filled or a decorator is used and column should sort on undecorated values. The last line suggests that if the attribute is not set, the decorated values will be used for the sort. This does not work for me. Basically, I receive a collection with an ID. The ID refers to a description that is not present in the collection itself. The descriptions are stored in an application object. Through the use of a DisplayTagColumnDecorator, with the ID, the description is retrieved and displayed correctly in the column. The problem is when the column is sorted, the ID is used to do the sorting and not the \"decorated\" content of the column. Am I missing something or did I interpret the attribute description incorrectly? How can I make it so that the \"decorated\" description is used for sorting instead of the ID? Here is an example to reproduce the problem. Instead of an application object, I just return names from a static list in the decorator. decorator.jsp: [code]<%@ page contentType=\"text/html; charset=UTF-8\"%> <%@ taglib prefix=\"s\" uri=\"/struts-tags\"%> <%@ taglib uri=\"http://displaytag.sf.net\"; prefix=\"display\"%> <html> <head> <title>Decorator test</title> </head> <body> <s:set var=\"myList\" value=\"taskList\" scope=\"request\" /> <display:table name=\"myList\" uid=\"row\" requestURI=\"\"> <display:column property=\"id\" sortable=\"true\" /> <display:column property=\"taskName\" sortable=\"true\" /> <display:column property=\"id\" sortable=\"true\" title=\"Decorator\" decorator=\"fou.fouDecorator\"/> </display:table> </body>[/code] Task.java: [code]package fou; public class Task { private Integer id; private String taskName; private Double amount; public Task() { } public String getTaskName() { return taskName; } public void setTaskName(String taskName) { this.taskName = taskName; } public Double getAmount() { return amount; } public void setAmount(Double amount) { this.amount = amount; } public void setId(Integer id) { this.id = id; } public Integer getId() { return id; } }[/code] actionDecorator.java: [code]package fou; import java.util.ArrayList; import java.util.List; import com.opensymphony.xwork2.ActionSupport; public class actionDecorator extends ActionSupport { private static final long serialVersionUID = 1L; List<Task> taskList = new ArrayList<Task>(); public String execute() { taskList = new ArrayList<Task>(); for (int i = 0; i < 10; ++i) { Task t = new Task(); t.setId(i); t.setTaskName(\"Task \" + i); taskList.add(t); } return SUCCESS; } public List<Task> getTaskList() { return taskList; } public void setTaskList(List<Task> taskList) { this.taskList = taskList; } }[/code] fouDecorator.java: [code]package fou; import javax.servlet.jsp.PageContext; import org.displaytag.decorator.DisplaytagColumnDecorator; import org.displaytag.exception.DecoratorException; import org.displaytag.properties.MediaTypeEnum; public class fouDecorator implements DisplaytagColumnDecorator { private static final String[] players = { \"Roger\", \"Rafa\", \"Novak\", \"Andy\", \"Robin\", \"Nikolay\", \"Tomas\", \"Juan\", \"Fernando\", \"Jo-Wilfred\" }; @Override public Object decorate(Object arg0, PageContext arg1, MediaTypeEnum arg2) throws DecoratorException { return players[(Integer)arg0]; } }[/code] Struts2 (struts.xml): [code] ... <action name=\"goDecorator\" method=\"execute\" class=\"fou.actionDecorator\"> <result name=\"success\">/jsp/decorator.jsp</result> </action> [/code] When the decorator column is clicked to sort, the ID is used instead of the names ... Thanks for your help! Fred. foui...@yahoo.com ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ displaytag-user mailing list displaytag-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/displaytag-user
