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Posted to users@tapestry.apache.org by "Cox, Jason" <ja...@citigroup.com> on 2003/11/24 17:04:45 UTC
RE: conditionally displaying a page- derail
What's the penalty for not having Home subclassed from BasePage?
Right now I have my HomePage class inheriting from WebPage which itself
inherits from BasePage. Wouldn't it still be considered a type of BasePage?
I did this because there is some common logic used in most of my
"user-facing" pages (non-content management) that I don't want to recreate
in every class.
-----Original Message-----
From: Kevin C. Dorff [mailto:kdorff@kcp.com]
Sent: Monday, November 24, 2003 9:58 AM
To: Tapestry users
Subject: Re: conditionally displaying a page if logged in
Override validate, such as
public void validate(IRequestCycle cycle) {
super.validate(cycle);
//your logic
}
Note that the page you are calling "Home" should be derived from
BasePage and not SomePage. All of your other pages should be derived
from SomePage.
Kevin
Jeff Emminger wrote:
> i'm trying to build an example of an app that requires you to log
> in...my current idea is to store the username in the visit, and the
> presence or absence of the username determines "logged in" or not.
>
> in the page that should be restricted to logged in users (SomePage), i
> check the visit for the username in SomePage's initialize() method and
> attempt to throw a PageRedirectException to Home if no username. this
> doesn't seem to work, as it never redirects...what should i be doing?
>
> SomePage.java:
> public class SomePage extends BasePage {
> Visit visit = (Visit)getVisit();
>
> protected void initialize() {
> if (visit.getUsername().length() == 0) {
> visit.setError("Please log in.");
> throw new PageRedirectException("Home");
> }
> }
> }
>
>
>
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Re: conditionally displaying a page- derail
Posted by "Kevin C. Dorff" <kd...@kcp.com>.
All I meant was that the class has a parent somewhere in its ancestry of
BasePage. How I do it is, essentially,
<most pages> are of type SecurePage, which extends BasePage
<login page> is of type BaseBage
The validate() of SecurePage.java checks if the user isn't appropriately
validated and will steer the user to <login page>.
<login page> isn't a SecurePage so it avoids the "valid user" lookup
logic, just shows the login.
Makes up?
Kevin
Cox, Jason wrote:
>What's the penalty for not having Home subclassed from BasePage?
>
>Right now I have my HomePage class inheriting from WebPage which itself
>inherits from BasePage. Wouldn't it still be considered a type of BasePage?
>
>I did this because there is some common logic used in most of my
>"user-facing" pages (non-content management) that I don't want to recreate
>in every class.
>
>-----Original Message-----
>From: Kevin C. Dorff [mailto:kdorff@kcp.com]
>Sent: Monday, November 24, 2003 9:58 AM
>To: Tapestry users
>Subject: Re: conditionally displaying a page if logged in
>
>
>Override validate, such as
>
> public void validate(IRequestCycle cycle) {
> super.validate(cycle);
> //your logic
> }
>
>Note that the page you are calling "Home" should be derived from
>BasePage and not SomePage. All of your other pages should be derived
>from SomePage.
>
>Kevin
>
>
>Jeff Emminger wrote:
>
>
>
>>i'm trying to build an example of an app that requires you to log
>>in...my current idea is to store the username in the visit, and the
>>presence or absence of the username determines "logged in" or not.
>>
>>in the page that should be restricted to logged in users (SomePage), i
>>check the visit for the username in SomePage's initialize() method and
>>attempt to throw a PageRedirectException to Home if no username. this
>>doesn't seem to work, as it never redirects...what should i be doing?
>>
>>SomePage.java:
>>public class SomePage extends BasePage {
>> Visit visit = (Visit)getVisit();
>>
>> protected void initialize() {
>> if (visit.getUsername().length() == 0) {
>> visit.setError("Please log in.");
>> throw new PageRedirectException("Home");
>> }
>> }
>>}
>>
>>
>>
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>>To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
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>>
>>
>>
>>
>
>
>
>
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>
>
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