org.javalite.activeweb.freemarker

Class SelectTag

java.lang.Object

org.javalite.activeweb.freemarker.FreeMarkerTag

org.javalite.activeweb.freemarker.SelectTag

All Implemented Interfaces:

freemarker.template.TemplateDirectiveModel, freemarker.template.TemplateModel

public class SelectTag
extends FreeMarkerTag

Select tag is to generate the <select> HTML tag based on data passed in dynamically into a view.

Parameters:

• list - this is a mandatory parameter, and it needs to be type of java.util.List filled with instances of SelectOption

In addition to the collection, you can also add body to the tag. For instance, if you write the tag like this:

 <@select list=books>
     <option value="3">A Tale of Two Cities</option>
   </@>
 

And pass this data from controller:

     view("books", list(new SelectOption(1, "The Hitchhiker's Guide to the Galaxy"), new SelectOption(2, "All Quiet on Western Front", true)));
 

then the output from the tag will be:

 <select>
       <option value="3">A Tale of Two Cities</option>
       <option value="1">The Hitchhiker's Guide to the Galaxy</option>
       <option value="2" selected="true">All Quiet on Western Front</option>
 </select>

Which means that the generated code is appended to hand-written body.

Adding HTML5-style attributes

Use a special attribute "data", whose value will be added to the resulting tag verbatim.

 <select data="data-greeting='hola' data-bye='astalavista'"  >
   ...
 </select>

Author:

Igor Polevoy: 4/12/12 1:13 PM

Field Summary

Fields inherited from interface freemarker.template.TemplateModel

NOTHING

Constructor Summary

Constructors

Constructor and Description
SelectTag()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	render(Map params, String body, Writer writer) Implement this method ina concrete subclass.

Methods inherited from class org.javalite.activeweb.freemarker.FreeMarkerTag

appContext, context, cookie, cookies, cookieValue, execute, exists, format, get, getAllVariables, getContextPath, getId, getLocale, getRequestHost, getRequestPort, getRequestProtocol, getRoute, getUnwrapped, getUnwrapped, header, headers, host, ipAddress, ipForwardedFor, isDelete, isGet, isHead, isMethod, isPost, isPut, isXhr, locale, logger, method, overrideContext, param, params, params, params1st, path, port, process, protocol, queryString, remoteAddress, remoteHost, requestHas, session, session, sessionObject, uri, url, userAgent, validateParamsPresence, xhr

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SelectTag

public SelectTag()

Method Detail

render

protected void render(Map params,
          String body,
          Writer writer)
               throws Exception

Description copied from class: FreeMarkerTag

Implement this method ina concrete subclass.

Specified by:

render in class FreeMarkerTag

Parameters:

params - this is a list of parameters as provided to tag in HTML.

body - body of tag

writer - writer to write output to.

Throws:

Exception - if any