Hi,
in your Java class you have
@Component
private Form form;
and in template:
<form t:type="form" t:id="loginForm">
If you don't provide a component id is argument to @Component, Tapestry
uses field's name as the id. You need to do one of following:
- change field name to loginForm,
- or add "loginForm" as argument to @Component.
- or change t:id in your template to "form"
In this case I would also recommend to use @InjectComponent instead of
@Component, e.g.:
@InjectComponent("loginForm")
private Form form;
Best regards
Cezary
On Tue, Oct 23, 2012 at 7:40 PM, John <j...@quivinco.com> wrote:
> I did a T4 project ages ago and now learning T5.
>
> I just want to build a working login page and copied the code snippets
> here http://tapestry.apache.org/forms-and-validation.html and added them
> to the quickstart application - my versions appear below.
>
> When I navigate to the Login page it returns:
> Embedded component(s) form are defined within component class
> com.epulse.tapestrydemo.pages.Login (or a super-class of Login), but are
> not present in the component template
> (classpath:com/epulse/tapestrydemo/pages/Login.tml).
>
> Has anyone a simple login page example that works, or can help with the
> above?
>
> John
>
>
>
> /*
> * To change this template, choose Tools | Templates
> * and open the template in the editor.
> */
> package com.epulse.tapestrydemo.pages;
>
> import com.epulse.tapestrydemo.security.UserAuthenticator;
> import org.apache.tapestry5.annotations.Component;
> import org.apache.tapestry5.annotations.InjectComponent;
> import org.apache.tapestry5.annotations.Persist;
> import org.apache.tapestry5.annotations.Property;
> import org.apache.tapestry5.corelib.components.Form;
> import org.apache.tapestry5.corelib.components.PasswordField;
> import org.apache.tapestry5.ioc.annotations.Inject;
>
> public class Login
> {
> @Persist
> @Property
> private String userName;
>
> @Property
> private String password;
>
> @Inject
> private UserAuthenticator authenticator;
>
> @InjectComponent
> private PasswordField passwordField;
>
> @Component
> private Form form;
>
> /**
> * Do the cross-field validation
> */
> void onValidateFromForm()
> {
> if (!authenticator.isValid(userName, password))
> {
> // record an error, and thereby prevent Tapestry from emitting
> a "success" event
> form.recordError(passwordField, "Invalid user name or
> password.");
> }
> }
>
> /**
> * Validation passed, so we'll go to the "PostLogin" page
> */
> Object onSuccess()
> {
> return About.class;
> }
> }
>
>
> <html t:type="layout" title="Contact com.epulse"
> xmlns:t="http://tapestry.apache.org/schema/tapestry_5_3.xsd";
> xmlns:p="tapestry:parameter">
>
> <h1>Please Login</h1>
>
> <form t:type="form" t:id="loginForm">
>
> <t:errors/>
>
> <t:label for="userName"/>:
> <input t:type="TextField" t:id="userName"
> t:validate="required,minlength=3" size="30"/>
> <br/>
> <t:label for="password"/>:
> <input t:type="PasswordField" t:id="password"
> t:validate="required,minlength=3" size="30"/>
> <br/>
> <input type="submit" value="Login"/>
> </form>
>
> </html>
